Nektar Therapeutics

United States of America

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        Patent 423
        Trademark 18
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        United States 235
        World 147
        Canada 50
        Europe 9
Date
2025 February 1
2024 December 1
2025 (YTD) 1
2024 2
2023 7
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IPC Class
A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates 157
A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol 87
A61P 35/00 - Antineoplastic agents 52
C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen 34
A61K 38/20 - Interleukins 31
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NICE Class
05 - Pharmaceutical, veterinary and sanitary products 14
42 - Scientific, technological and industrial services, research and design 9
10 - Medical apparatus and instruments 6
01 - Chemical and biological materials for industrial, scientific and agricultural use 3
Status
Pending 29
Registered / In Force 412
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1.

DOSING REGIMENS FOR SELECTIVE TREG STIMULATOR RUR20kD-IL-2 AND RELATED COMPOSITIONS

      
Application Number 18718703
Status Pending
Filing Date 2022-12-14
First Publication Date 2025-02-13
Owner
  • Nektar Therapeutics (USA)
  • Eli Lilly and Company (USA)
Inventor
  • Ashrafzadeh, Ali
  • Dodd, Steven Witt
  • Jackson, Kimberley Anne
  • Kaneshiro, Stacey Masaaki
  • Klekotka, Paul Alan
  • Kotzin, Brian Leslie
  • Schmitz, Carsten
  • Zalevsky, Jonathan

Abstract

The instant disclosure provides selective Treg stimulator compositions, including RUR20kD-IL-2 and related compositions, and rezpegaldesleukin, and formulations and dosing regimens for methods of using these compositions, for example, for treating autoimmune diseases, including atopic dermatitis.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/12 - Carboxylic acidsSalts or anhydrides thereof
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
  • A61P 17/06 - Antipsoriatics
  • A61P 37/06 - Immunosuppressants, e.g. drugs for graft rejection
  • A61P 37/08 - Antiallergic agents

2.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONISTS AND RELATED IMMUNOTHERAPEUTIC COMPOSITIONS AND METHODS

      
Application Number 18735818
Status Pending
Filing Date 2024-06-06
First Publication Date 2024-12-26
Owner Nektar Therapeutics (USA)
Inventor
  • Kirk, Peter Benedict
  • Zhang, Ping
  • Brewer, Peiwen Kuo

Abstract

The instant disclosure provides a long acting IL-15 receptor agonist, related compositions and methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 38/20 - Interleukins
  • A61P 35/04 - Antineoplastic agents specific for metastasis

3.

HISTIDINE-SELECTIVE POLYMER REAGENTS

      
Application Number 18570610
Status Pending
Filing Date 2022-06-17
First Publication Date 2024-09-12
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Anand, Neel K.
  • Shen, Xiaoming
  • Wang, Xiaobing

Abstract

The instant disclosure provides (among other things) novel water-soluble polymer reagents capable of selective conjugation to histidine residues. e.g., in peptides and proteins, as well the resulting conjugates and related compositions. In addition, provided are methods of preparing the polymer reagents, as well as methods for conjugating the polymer reagents to active agents and other substances, pharmaceutical compositions, and methods for administering the conjugates.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen

4.

Multi-arm polymer conjugates of TLR agonist compounds and related immunotherapeutic treatment methods

      
Application Number 18221300
Grant Number 12214045
Status In Force
Filing Date 2023-07-12
First Publication Date 2023-11-23
Grant Date 2025-02-04
Owner Nektar Therapeutics (USA)
Inventor
  • Ren, Zhongxu
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Joshi, Bhalchandra V.
  • Zalevsky, Jonathan
  • Miyazaki, Takahiro
  • Kivimae, Saul

Abstract

Provided are multi-arm polymer conjugates of Toll-Like Receptor (“TLR”) agonists such as TLR 7/8 agonists, as well as related compositions, and methods of making and using such conjugates. Exemplary conjugates are encompassed by Formula I: r is independently a linkage-containing spacer moiety; q is a positive integer from 3 to about 50; and each TLR 7/8 AG is a Toll-like receptor 7/8 agonist. Also provided is a method of administering to a patient having cancer (a) an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and (b) a Toll-like receptor agonist such as a conjugate as described above, as well as related compositions, kits and methods.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents

5.

CONJUGATES OF A FACTOR VIII MOIETY HAVING AN OXIME-CONTAINING LINKAGE

      
Application Number 18114710
Status Pending
Filing Date 2023-02-27
First Publication Date 2023-08-03
Owner Nektar Therapeutics (USA)
Inventor
  • Bossard, Mary J.
  • Sheng, Dawei

Abstract

The present disclosure provides conjugates comprising a Factor VIII moiety covalently attached via an oxime-containing linkage to a water-soluble polymer, such as for example, a polyethylene glycol polymer. Methods for preparing and for administering such conjugates, are also provided, as are water-soluble polymer oxyamine reagents useful for preparing the subject conjugates, among other things.

IPC Classes  ?

  • A61K 38/37 - Factors VIII
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen

6.

DOSING REGIMENS FOR SELECTIVE TREG STIMULATOR RUR20KD-IL-2 AND RELATED COMPOSITIONS

      
Document Number 03239501
Status Pending
Filing Date 2022-12-14
Open to Public Date 2023-06-22
Owner
  • ELI LILLY AND COMPANY (USA)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Ashrafzadeh, Ali
  • Dodd, Steven Witt
  • Jackson, Kimberley Anne
  • Kaneshiro, Stacey Masaaki
  • Klekotka, Paul Alan
  • Kotzin, Brian Leslie
  • Schmitz, Carsten
  • Zalevsky, Jonathan

Abstract

The instant disclosure provides selective Treg stimulator compositions, including RUR20kD-IL-2 and related compositions, and rezpegaldesleukin, and formulations and dosing regimens for methods of using these compositions, for example, for treating autoimmune diseases, including atopic dermatitis.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system
  • A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics
  • A61P 11/06 - Antiasthmatics
  • A61P 17/06 - Antipsoriatics
  • A61P 37/02 - Immunomodulators
  • A61P 37/06 - Immunosuppressants, e.g. drugs for graft rejection
  • A61P 37/08 - Antiallergic agents

7.

DOSING REGIMENS FOR SELECTIVE TREG STIMULATOR RUR20KD-IL-2 AND RELATED COMPOSITIONS

      
Application Number US2022081541
Publication Number 2023/114833
Status In Force
Filing Date 2022-12-14
Publication Date 2023-06-22
Owner
  • NEKTAR THERAPEUTICS (USA)
  • ELI LILLY AND COMPANY (USA)
Inventor
  • Ashrafzadeh, Ali
  • Dodd, Steven Witt
  • Jackson, Kimberley Anne
  • Kaneshiro, Stacey Masaaki
  • Klekotka, Paul Alan
  • Kotzin, Brian Leslie
  • Schmitz, Carsten
  • Zalevsky, Jonathan

Abstract

The instant disclosure provides selective Treg stimulator compositions, including RUR20kD-IL-2 and related compositions, and rezpegaldesleukin, and formulations and dosing regimens for methods of using these compositions, for example, for treating autoimmune diseases, including atopic dermatitis.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 37/02 - Immunomodulators
  • A61P 37/06 - Immunosuppressants, e.g. drugs for graft rejection
  • A61P 37/08 - Antiallergic agents
  • A61P 17/06 - Antipsoriatics
  • A61P 11/06 - Antiasthmatics
  • A61P 1/00 - Drugs for disorders of the alimentary tract or the digestive system
  • A61P 3/10 - Drugs for disorders of the metabolism for glucose homeostasis for hyperglycaemia, e.g. antidiabetics

8.

METHOD FOR ENHANCING CELLULAR IMMUNOTHERAPY

      
Application Number 17601611
Status Pending
Filing Date 2020-04-04
First Publication Date 2023-05-25
Owner
  • Nektar Therapeutics (USA)
  • Fred Hutchinson Cancer Research Center (USA)
Inventor
  • Marcondes, Antonio Mario Querido
  • Kirk, Peter Benedict
  • Miyazaki, Takahiro
  • Turtle, Cameron J.
  • Riddell, Stanley R.
  • Chou, Cassie K.
  • Fräßle, Simon P.

Abstract

Provided are methods and compositions directed to the treatment of an individual having cancer by (i) administering to the individual an adoptive cellular immunotherapy composition comprising CAR T cells and (ii) administering to the individual an interleukin-15 receptor agonist, such as, for example, a long-acting interleukin-15 receptor agonist.

IPC Classes  ?

  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61K 35/17 - LymphocytesB-cellsT-cellsNatural killer cellsInterferon-activated or cytokine-activated lymphocytes
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61P 35/00 - Antineoplastic agents
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 38/17 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans

9.

POLYMER DERIVATIVES HAVING PARTICULAR ATOM ARRANGEMENTS

      
Application Number 17818687
Status Pending
Filing Date 2022-08-09
First Publication Date 2023-04-13
Owner Nektar Therapeutics (USA)
Inventor
  • Harris, J. Milton
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.
  • Bentley, Michael D.
  • Charles, Stephen A.

Abstract

Polymeric reagents are provided comprising a moiety of atoms arranged in a specific order, wherein the moiety is positioned between a water-soluble polymer and a reactive group. The polymeric reagents are useful for, among other things, forming polymer-active agent conjugates. Related methods, compositions, preparations, and so forth are also provided.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 31/52 - Purines, e.g. adenine
  • A61K 38/095 - OxytocinsVasopressinsRelated peptides
  • C08G 65/329 - Polymers modified by chemical after-treatment with organic compounds
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • A61K 31/357 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having two or more oxygen atoms in the same ring, e.g. crown ethers, guanadrel
  • A61K 31/4025 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil not condensed and containing further heterocyclic rings, e.g. cromakalim
  • A61K 38/18 - Growth factorsGrowth regulators
  • A61K 38/19 - CytokinesLymphokinesInterferons
  • A61K 38/21 - Interferons
  • A61K 38/24 - Follicle-stimulating hormone [FSH]Chorionic gonadotropins, e.g. HCGLuteinising hormone [LH]Thyroid-stimulating hormone [TSH]
  • A61K 38/27 - Growth hormone [GH], i.e. somatotropin
  • A61K 38/37 - Factors VIII

10.

POLYMER ENGINEERED FORMS OF INTERFERON-GAMMA AND METHODS OF USE

      
Application Number US2022073649
Publication Number 2023/288226
Status In Force
Filing Date 2022-07-12
Publication Date 2023-01-19
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Charych, Deborah, H.
  • Sheng, Dawei
  • Huang, Jicai
  • Chan, Wei
  • Hamel, Damon, Justin

Abstract

Provided is a conjugate comprising interferon-gamma (1FN- gamma) covalently attached to a water-soluble polymer at a cysteine residue of the IFN- gamma, more particularly, at the sulfur atom of the cysteine, where the interferon- gamma is a mutein comprising a cysteine that has been substituted for an amino acid of the IFN- gamma or has been inserted into the IFN- gamma sequence ("cysteine mutein of IFN- gamma "). In preferred embodiments, the water-soluble polymer is a poly(alkylene oxide). More preferably, the water-soluble polymer is a poly(ethylene glycol).

IPC Classes  ?

  • C07K 14/57 - IFN-gamma
  • A61K 38/21 - Interferons
  • A61K 47/55 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound the modifying agent being also a pharmacologically or therapeutically active agent, i.e. the entire conjugate being a codrug, i.e. a dimer, oligomer or polymer of pharmacologically or therapeutically active compounds
  • A61P 35/00 - Antineoplastic agents

11.

HISTIDINE-SELECTIVE POLYMER REAGENTS

      
Application Number US2022034085
Publication Number 2022/266498
Status In Force
Filing Date 2022-06-17
Publication Date 2022-12-22
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kozlowski, Antoni
  • Anand, Neel K.
  • Shen, Xiaoming
  • Wang, Xiaobing

Abstract

The instant disclosure provides (among other things) novel water-soluble polymer reagents capable of selective conjugation to histidine residues, e.g., in peptides and proteins, as well the resulting conjugates and related compositions. In addition, provided are methods of preparing the polymer reagents, as well as methods for conjugating the polymer reagents to active agents and other substances, pharmaceutical compositions, and methods for administering the conjugates.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61K 47/65 - Peptidic linkers, binders or spacers, e.g. peptidic enzyme-labile linkers

12.

NEKTAR

      
Serial Number 97725910
Status Pending
Filing Date 2022-12-20
Owner Nektar Therapeutics ()
NICE Classes  ? 05 - Pharmaceutical, veterinary and sanitary products

Goods & Services

Pharmaceuticals, namely, pharmaceutical preparations having enhanced drug performance for the treatment of medical conditions in the nature of cancer; pharmaceuticals, namely, pharmaceutical preparations having enhanced drug performance for the treatment of medical conditions in the nature of immune system related diseases and disorders

13.

ADENOSINE 2 RECEPTOR ANTAGONISTS

      
Application Number 17608582
Status Pending
Filing Date 2020-05-01
First Publication Date 2022-07-28
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Anand, Neel K.
  • Aurrecoechea, Natalia
  • Brockway, Anthony James
  • Cai, Haiying
  • Cheng, Lin
  • Deng, Bo-Liang
  • O'Mahony, Donogh John Roger
  • Ren, Zhongxu
  • Zhang, Wen

Abstract

The instant disclosure provides novel adenosine receptor antagonist compounds, compositions, methods of making and methods of using. In a further aspect, a method of treating a subject in need thereof, comprising administering a therapeutically effective amount of any one or more of the compounds described herein. In some embodiments, the subject has cancer and the method is a method of treating cancer.

IPC Classes  ?

  • C07D 487/04 - Ortho-condensed systems
  • C07D 519/00 - Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups or

14.

COMPOSITION COMPRISING A POLYMERIC REAGENT

      
Application Number 17586495
Status Pending
Filing Date 2022-01-27
First Publication Date 2022-05-12
Owner Nektar Therapeutics (USA)
Inventor
  • Bentley, Michael D.
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.

Abstract

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 61/02 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
  • C07C 235/68 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced
  • C07D 207/46 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
  • C07K 14/575 - Hormones
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C08G 65/338 - Polymers modified by chemical after-treatment with inorganic and organic compounds
  • A61K 38/26 - Glucagons
  • A61K 38/28 - Insulins
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/334 - Polymers modified by chemical after-treatment with organic compounds containing sulfur
  • C08K 5/13 - PhenolsPhenolates

15.

TLR AGONIST COMPOUNDS AND RELATED CANCER IMMUNOTHERAPY METHODS

      
Application Number US2021058187
Publication Number 2022/098954
Status In Force
Filing Date 2021-11-05
Publication Date 2022-05-12
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Fanton, Christie P.
  • Haglund, Cathleen M.
  • Zalevsky, Jonathan

Abstract

Provided herein are methods related to cancer treatment and prognosis, and more specifically to treatment of cancers positive of CD11c with Toll-Like Receptor ("TLR") agonists.

IPC Classes  ?

  • A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines
  • A61K 38/20 - Interleukins
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61P 35/00 - Antineoplastic agents

16.

Polymeric alpha-hydroxy aldehyde and ketone reagents and conjugation method

      
Application Number 17538885
Grant Number 11634540
Status In Force
Filing Date 2021-11-30
First Publication Date 2022-03-17
Grant Date 2023-04-25
Owner Nektar Therapeutics (USA)
Inventor
  • Culbertson, Sean M.
  • Shen, Xiaoming
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.

Abstract

Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08L 71/02 - Polyalkylene oxides
  • C07K 1/00 - General processes for the preparation of peptides
  • C07K 17/08 - Peptides being immobilised on, or in, an organic carrier the carrier being a synthetic polymer
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • A61K 38/00 - Medicinal preparations containing peptides

17.

OLIGOMER-CORTICOSTEROID CONJUGATES

      
Application Number 17527910
Status Pending
Filing Date 2021-11-16
First Publication Date 2022-03-10
Owner Nektar Therapeutics (USA)
Inventor
  • Zhang, Wen
  • Riggs-Sauthier, Jennifer
  • Harris, J. Milton
  • Bentley, Michael D.

Abstract

The invention provides corticosteroids that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits a reduced biological membrane crossing rate as compared to the biological membrane crossing rate of the corticosteroid not attached to the water-soluble oligomer.

IPC Classes  ?

  • A61K 31/573 - Compounds containing cyclopenta[a]hydrophenanthrene ring systemsDerivatives thereof, e.g. steroids substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane or progesterone substituted in position 21, e.g. cortisone, dexamethasone, prednisone or aldosterone
  • C07J 41/00 - Normal steroids containing one or more nitrogen atoms not belonging to a hetero ring
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 47/59 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes

18.

IL-7 RECEPTOR AGONIST COMPOSITION AND RELATED METHODS AND USES

      
Application Number US2021042837
Publication Number 2022/020637
Status In Force
Filing Date 2021-07-22
Publication Date 2022-01-27
Owner
  • NEKTAR THERAPEUTICS (USA)
  • NEKTAR THERAPEUTICS (INDIA) PVT. LTD. (India)
Inventor
  • Zhang, Ping
  • Addepalli, Murali Krishna
  • Tang, Yinyan
  • Palla, Kanwal S.
  • Sloane, David Lewis

Abstract

The instant disclosure is directed to interleukin-7 (IL-7) receptor agonist compositions, poly(ethylene glycol)-modified interleukin-7 molecules comprised in such compositions, as well as the features of such IL-7 receptor agonist compositions, and related methods and uses, for example, in the treatment of conditions responsive to therapy effective to provide sustained immune activation.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

19.

METHOD FOR ENHANCING HUMORAL IMMUNITY

      
Application Number US2021040558
Publication Number 2022/010928
Status In Force
Filing Date 2021-07-06
Publication Date 2022-01-13
Owner
  • NEKTAR THERAPEUTICS (INDIA) PVT. LTD. (India)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Miyazaki, Takahiro
  • Addepalli, Murali Krishna

Abstract

The present disclosure provides, among other things, methods, compositions, and kits for promoting or enhancing humoral immunity in a subject. More particularly, provided is a method for enhancing humoral immunity in a subject by administering to the subject a long acting IL-2Rαβ-biased agonist in combination with a vaccine, such as, for example, a preventative vaccine for protection against an infectious disease.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 39/39 - Medicinal preparations containing antigens or antibodies characterised by the immunostimulating additives, e.g. chemical adjuvants
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61P 31/20 - Antivirals for DNA viruses
  • A61K 39/12 - Viral antigens
  • A61P 31/04 - Antibacterial agents

20.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONIST IN COMBINATION WITH ANOTHER PHARMACOLOGICALLY ACTIVE AGENT

      
Application Number 17292135
Status Pending
Filing Date 2019-11-08
First Publication Date 2021-12-23
Owner Nektar Therapeutics (USA)
Inventor
  • Miyazaki, Takahiro
  • Madakamutil, Loui
  • Kivimae, Saul

Abstract

The instant disclosure provides a combination treatment, composition and kit comprising (a) a long-acting IL-15 receptor agonist and (b) one or more antibodies (mAb) targeting a tumor antigen, related methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61P 35/00 - Antineoplastic agents

21.

Method of making releasable polymeric reagents

      
Application Number 17284378
Grant Number 11932726
Status In Force
Filing Date 2019-10-11
First Publication Date 2021-12-16
Grant Date 2024-03-19
Owner Nektar Therapeutics (USA)
Inventor
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.
  • Kozlowski, Antoni
  • Somu, Venkata Ravidnranadh

Abstract

The instant disclosure provides (among other things) improved methods of preparing fluorenyl-based polymeric reagents, methods of recovering and purifying such polymeric reagents, methods of reducing unwanted impurities in a fluorenyl-based polymeric reagent, fluorenyl-based polymeric reagents prepared by the methods described herein, and conjugates prepared by reaction with fluorenyl-based polymeric reagents prepared by the methods described herein.

IPC Classes  ?

  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/30 - Post-polymerisation treatment, e.g. recovery, purification, drying

22.

Combination for Treating Cancer

      
Application Number 17291047
Status Pending
Filing Date 2019-11-04
First Publication Date 2021-12-16
Owner
  • Pfizer Inc. (USA)
  • MERCK PATENT GMBH (Germany)
  • NEKTAR THERAPEUTICS (USA)
  • Astellas Pharma Inc. (Japan)
Inventor
  • Boshoff, Christoffel Hendrik
  • Cesari, Rossano
  • Massacesi, Cristian
  • Charych, Deborah

Abstract

Provided herein are methods and combinations for treating a subject having cancer by administering to the subject a PD-1/PD-L1 axis inhibitor, a CD-122-biased cytokine agonist, and an anti-androgen or a pharmaceutically acceptable salt thereof.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 31/5025 - PyridazinesHydrogenated pyridazines ortho- or peri-condensed with heterocyclic ring systems
  • A61P 35/00 - Antineoplastic agents

23.

Conjugates of a factor VIII moiety having an oxime-containing linkage

      
Application Number 16319759
Grant Number 11628205
Status In Force
Filing Date 2017-07-21
First Publication Date 2021-12-02
Grant Date 2023-04-18
Owner Nektar Therapeutics (USA)
Inventor
  • Bossard, Mary J.
  • Sheng, Dawei

Abstract

The present disclosure provides conjugates comprising a Factor VIII moiety covalently attached via an oxime-containing linkage to a water-soluble polymer, such as for example, a polyethylene glycol polymer. Methods for preparing and for administering such conjugates, are also provided, as are water-soluble polymer oxyamine reagents useful for preparing the subject conjugates, among other things.

IPC Classes  ?

  • A61K 38/37 - Factors VIII
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen

24.

Combinations for Treating Cancer

      
Application Number 17291069
Status Pending
Filing Date 2019-11-04
First Publication Date 2021-11-18
Owner
  • Pfizer Inc. (USA)
  • MERCK PATENT GMBH (Germany)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Boshoff, Christoffel Hendrik
  • Cesari, Rossano
  • Massacesi, Cristian
  • Charych, Deborah

Abstract

Provided herein are methods and combinations for treating a subject having cancer by administering to the subject a PD-1/PD-L1 axis inhibitor, a CD-122-biased-cytokine agonist, and optionally a PARP inhibitor.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 31/5025 - PyridazinesHydrogenated pyridazines ortho- or peri-condensed with heterocyclic ring systems
  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

25.

METHOD FOR PREPARING FUNCTIONALIZED POLYMERS FROM POLYMER ALCOHOLS

      
Application Number 17165958
Status Pending
Filing Date 2021-02-03
First Publication Date 2021-11-11
Owner Nektar Therapeutics (USA)
Inventor
  • Mcmanus, Samuel P.
  • Kozlowski, Antoni
  • Harris, J. Milton

Abstract

The present invention provides, among other things, methods for preparing functionalized and other polymers from polymer alcohols such as poly(ethylene glycol)s. In addition, polymer compositions, conjugates, polymeric reagents, are also provided.

IPC Classes  ?

  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/322 - Polymers modified by chemical after-treatment with inorganic compounds containing hydrogen
  • C08G 65/329 - Polymers modified by chemical after-treatment with organic compounds
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/00 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
  • C08G 65/323 - Polymers modified by chemical after-treatment with inorganic compounds containing halogens
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • B01D 15/36 - Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction, e.g. ion-exchange, ion-pair, ion-suppression or ion-exclusion
  • C08G 65/30 - Post-polymerisation treatment, e.g. recovery, purification, drying
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof

26.

Conjugates of an IL-2 moiety and a polymer

      
Application Number 17373665
Grant Number 12247059
Status In Force
Filing Date 2021-07-12
First Publication Date 2021-11-04
Grant Date 2025-03-11
Owner Nektar Therapeutics (USA)
Inventor
  • Bossard, Mary J.
  • Ali, Cherie F.
  • Liu, Xiaofeng
  • Charych, Deborah H.
  • Wang, Yujun

Abstract

Conjugates of an interleukin-2 (“IL-2”) moiety and one or more nonpeptidic, water-soluble polymers are provided. Typically, the non-peptidic, water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided, among other things, are compositions comprising conjugates, methods of making conjugates, methods of administering compositions to an individual, nucleic acid sequences, expression systems, host cells, and methods for preparing IL-moieties.

IPC Classes  ?

  • C07K 14/55 - IL-2
  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

27.

IMMUNOMODULATOR FOR THE PREVENTION AND TREATMENT OF CORONOVIRUS INFECTION AND OTHER CONDITIONS

      
Application Number US2021025449
Publication Number 2021/202923
Status In Force
Filing Date 2021-04-01
Publication Date 2021-10-07
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Tagliaferri, Mary
  • Zalevsky, Jonathan
  • Overwijk, Willem

Abstract

Provided are (i) methods to increase lymphocyte levels in an individual that is lymphopenic by administering a compound effective to repeatedly and continuously stimulate/expand lymphocyte levels in the patient, in addition to (ii) methods for treatment of an individual with a coronavirus infection, such as for example, SARS-CoV-2 infection, or prevention against infection by a coronavirus, such as for example, SARS-CoV-2, by administering to such an individual a compound that is effect to stimulate/expand production of lymphocytes, either alone or in combination with standard of care.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 37/04 - Immunostimulants

28.

Immunotherapeutic tumor treatment method

      
Application Number 16610401
Grant Number 12054553
Status In Force
Filing Date 2018-05-02
First Publication Date 2021-09-23
Grant Date 2024-08-06
Owner Nektar Therapeutics (USA)
Inventor
  • Kivimae, Saul
  • Hennessy, Marlene
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra V.

Abstract

Provided is a method of administering to a patient having cancer: (a) a 4-1BB agonist; (b) an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and/or (c) a toll-like receptor agonist, as well as related compositions, kits and compositions.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/55 - IL-2

29.

IMMUNIVATION

      
Application Number 018524955
Status Registered
Filing Date 2021-07-29
Registration Date 2021-08-16
Owner Nektar Therapeutics (USA)
NICE Classes  ?
  • 05 - Pharmaceutical, veterinary and sanitary products
  • 42 - Scientific, technological and industrial services, research and design

Goods & Services

Pharmaceuticals, namely, pharmaceutical preparations for the treatment and/or prophylaxis of diseases or medical conditions such as cancers; pharmaceuticals, namely, an anti-cancer agent.. Research services, namely, providing research and development services for others in the biotechnical, biomedical and pharmaceutical fields..

30.

SELECTIVE TREG STIMULATOR RUR20kD-IL-2 AND RELATED COMPOSITIONS

      
Application Number 17056050
Status Pending
Filing Date 2019-05-20
First Publication Date 2021-07-08
Owner Nektar Therapeutics (USA)
Inventor
  • Kirk, Peter Benedict
  • Langowski, John L.
  • Zalevsky, Jonathan

Abstract

The instant disclosure provides selective Treg stimulator compositions, including RUR20kD-IL-2 and related compositions, and methods of using these compositions, for example, for treating autoimmune diseases, and/or other conditions responsive to therapy that is effective to provide a selective increase in numbers and activation of regulatory T cells over effector T cells.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 37/06 - Immunosuppressants, e.g. drugs for graft rejection
  • A61P 37/08 - Antiallergic agents

31.

Immunotherapeutic tumor treatment method

      
Application Number 16639520
Grant Number 12030940
Status In Force
Filing Date 2018-08-17
First Publication Date 2021-05-06
Grant Date 2024-07-09
Owner Nektar Therapeutics (USA)
Inventor
  • Zalevsky, Jonathan
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra V.
  • Tagliaferri, Mary
  • Rubas, Werner
  • Kivimae, Saul
  • Pena, Rhoneil L.

Abstract

Disclosed herein are methods in the field of cancer immunotherapy that involve the treatment of a subject having cancer by administering to the subject a toll-like receptor 7/8 (TLR7/8) agonist in combination with a long-acting IL-2Rβ-biased agonist and a programmed cell death protein 1 (PD-1)/programmed cell death protein ligand 1 (PD-L1) axis inhibitor, and related compositions, dosage forms, and kits.

IPC Classes  ?

  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 14/55 - IL-2

32.

Multi-arm polymer conjugates of TLR agonist compounds and related immunotherapeutic treatment methods

      
Application Number 16475972
Grant Number 11744898
Status In Force
Filing Date 2018-01-10
First Publication Date 2021-05-06
Grant Date 2023-09-05
Owner Nektar Therapeutics (USA)
Inventor
  • Ren, Zhongxu
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Joshi, Bhalchandra V.
  • Zalevsky, Jonathan
  • Miyazaki, Takahiro
  • Kivimae, Saul

Abstract

q  (I)

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 47/64 - Drug-peptide, drug-protein or drug-polyamino acid conjugates, i.e. the modifying agent being a peptide, protein or polyamino acid which is covalently bonded or complexed to a therapeutically active agent
  • A61P 35/00 - Antineoplastic agents
  • A61K 9/00 - Medicinal preparations characterised by special physical form

33.

Alkoxylation methods

      
Application Number 17062457
Grant Number 11834553
Status In Force
Filing Date 2020-10-02
First Publication Date 2021-01-28
Grant Date 2023-12-05
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.
  • Tipnis, Sachin
  • Lavaty, Greg
  • Swallow, David
  • Handley, John R.
  • Schaefer, Anthony G.

Abstract

Among other aspects, provided herein is a mixed-acid salt of a water-soluble polymer-drug conjugate, along with related methods of making and using the same. The mixed-salt acid salt is stably formed, and appears to be more resistant to hydrolytic degradation than the corresponding predominantly pure acid salt or free base forms of the polymer-drug conjugate. The mixed acid salt is reproducibly prepared and recovered, and provides surprising advantages over non-mixed acid salt forms of the water-soluble polymer drug conjugate.

IPC Classes  ?

  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/329 - Polymers modified by chemical after-treatment with organic compounds
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C07D 491/22 - Heterocyclic compounds containing in the condensed ring system both one or more rings having oxygen atoms as the only ring hetero atoms and one or more rings having nitrogen atoms as the only ring hetero atoms, not provided for by groups , , or in which the condensed system contains four or more hetero rings
  • C07C 51/41 - Preparation of salts of carboxylic acids by conversion of the acids or their salts into salts with the same carboxylic acid part
  • C07C 53/18 - Halogenated acetic acids containing fluorine
  • A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines

34.

Polymeric alpha-hydroxy aldehyde and ketone reagents and conjugation method

      
Application Number 16937378
Grant Number 11220575
Status In Force
Filing Date 2020-07-23
First Publication Date 2020-11-12
Grant Date 2022-01-11
Owner Nektar Therapeutics (USA)
Inventor
  • Culbertson, Sean M.
  • Shen, Xiaoming
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.

Abstract

Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08L 71/02 - Polyalkylene oxides
  • C07K 1/00 - General processes for the preparation of peptides
  • C07K 17/08 - Peptides being immobilised on, or in, an organic carrier the carrier being a synthetic polymer
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • A61K 38/00 - Medicinal preparations containing peptides

35.

ADENOSINE 2 RECEPTOR ANTAGONISTS

      
Application Number US2020031185
Publication Number 2020/227156
Status In Force
Filing Date 2020-05-01
Publication Date 2020-11-12
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Anand, Neel, K.
  • Aurrecoechea, Natalia
  • Brockway, Anthony, James
  • Cai, Haiying
  • Cheng, Lin
  • Deng, Bo-Liang
  • O'Mahony, Donogh John, Roger
  • Ren, Zhongxu
  • Zhang, Wen

Abstract

The instant disclosure provides novel adenosine receptor antagonist compounds, compositions, methods of making and methods of using. In a further aspect, a method of treating a subject in need thereof, comprising administering a therapeutically effective amount of any one or more of the compounds described herein. In some embodiments, the subject has cancer and the method is a method of treating cancer.

IPC Classes  ?

  • A61K 31/519 - PyrimidinesHydrogenated pyrimidines, e.g. trimethoprim ortho- or peri-condensed with heterocyclic rings
  • A61K 31/53 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
  • A61P 35/00 - Antineoplastic agents
  • C07D 239/00 - Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
  • C07D 249/00 - Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
  • C07D 487/04 - Ortho-condensed systems

36.

Multi-arm polymeric prodrug conjugates of pemetrexed-based compounds

      
Application Number 16912065
Grant Number 11612662
Status In Force
Filing Date 2020-06-25
First Publication Date 2020-10-15
Grant Date 2023-03-28
Owner Nektar Therapeutics (USA)
Inventor
  • Cheng, Lin
  • Riggs-Sauthier, Jennifer

Abstract

Among other aspects, provided herein are multi-arm polymeric prodrug conjugates of pemetrexed-based compounds. Methods of preparing such conjugates as well as methods of administering the conjugates are also provided. Upon administration to a patient, release of the pemetrexed-based compound is achieved.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

37.

METHOD FOR ENHANCING CELLULAR IMMUNOTHERAPY

      
Document Number 03134539
Status Pending
Filing Date 2020-04-04
Open to Public Date 2020-10-08
Owner
  • NEKTAR THERAPEUTICS (USA)
  • FRED HUTCHINSON CANCER CENTER (USA)
Inventor
  • Marcondes, Antonio Mario Querido
  • Kirk, Peter Benedict
  • Miyazaki, Takahiro
  • Turtle, Cameron J.
  • Riddell, Stanley R.
  • Chou, Cassie K.
  • Frassle, Simon P.

Abstract

Provided are methods and compositions directed to the treatment of an individual having cancer by (i) administering to the individual an adoptive cellular immunotherapy composition comprising CAR T cells and (ii) administering to the individual an interleukin- 15 receptor agonist, such as, for example, a long-acting interleukin- 15 receptor agonist.

IPC Classes  ?

38.

METHOD FOR ENHANCING CELLULAR IMMUNOTHERAPY

      
Application Number US2020026778
Publication Number 2020/206395
Status In Force
Filing Date 2020-04-04
Publication Date 2020-10-08
Owner
  • NEKTAR THERAPEUTICS (USA)
  • FRED HUTCHINSON CANCER RESEARCH CENTER (USA)
Inventor
  • Marcondes, Antonio, Mario Querido
  • Kirk, Peter, Benedict
  • Miyazaki, Takahiro
  • Turtle, Cameron, J.
  • Riddell, Stanley, R.
  • Chou, Cassie, K.
  • Frable, Simon, P.

Abstract

Provided are methods and compositions directed to the treatment of an individual having cancer by (i) administering to the individual an adoptive cellular immunotherapy composition comprising CAR T cells and (ii) administering to the individual an interleukin- 15 receptor agonist, such as, for example, a long-acting interleukin- 15 receptor agonist.

IPC Classes  ?

39.

Conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates

      
Application Number 16878401
Grant Number 11266742
Status In Force
Filing Date 2020-05-19
First Publication Date 2020-09-03
Grant Date 2022-03-08
Owner Nektar Therapeutics (USA)
Inventor
  • Bentley, Michael D.
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.

Abstract

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

IPC Classes  ?

  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 61/02 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
  • C07C 235/68 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced
  • C07D 207/46 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
  • C07K 14/575 - Hormones
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C08G 65/338 - Polymers modified by chemical after-treatment with inorganic and organic compounds
  • A61K 38/26 - Glucagons
  • A61K 38/28 - Insulins
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/334 - Polymers modified by chemical after-treatment with organic compounds containing sulfur
  • C08K 5/13 - PhenolsPhenolates
  • A61K 31/765 - Polymers containing oxygen

40.

IMMUNOTHERAPEUTIC COMBINATION FOR TREATING CANCER

      
Application Number US2020020224
Publication Number 2020/176797
Status In Force
Filing Date 2020-02-27
Publication Date 2020-09-03
Owner
  • NEKTAR THERAPEUTICS (USA)
  • VACCIBODY AS (Norway)
Inventor
  • Zalevsky, Jonathan
  • Fredriksen, Agnete Brunsvik
  • Axelsen, Mads
  • Schjetne, Karoline

Abstract

Provided herein are methods, combinations, and compositions for treating a subject having cancer by administering to the subject an individualized neoantigen DNA cancer vaccine in combination with a T cell expanding compound ("T cell expander"), i.e., a compound capable of driving specific clonal T cell expansion to vaccine epitopes, optionally further combined with a checkpoint inhibitor.

IPC Classes  ?

  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C12N 7/00 - Viruses, e.g. bacteriophagesCompositions thereofPreparation or purification thereof

41.

Polymer-sunitinib conjugates

      
Application Number 16869458
Grant Number 11419943
Status In Force
Filing Date 2020-05-07
First Publication Date 2020-08-20
Grant Date 2022-08-23
Owner Nektar Therapeutics (USA)
Inventor
  • Culbertson, Sean M.
  • Kozlowski, Antoni
  • Vinson, Tony Drew

Abstract

The invention relates to (among other things) polymer-sunitinib conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over sunitinib in unconjugated form.

IPC Classes  ?

  • A61K 31/404 - Indoles, e.g. pindolol
  • A61K 47/58 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. poly[meth]acrylate, polyacrylamide, polystyrene, polyvinylpyrrolidone, polyvinylalcohol or polystyrene sulfonic acid resin
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

42.

COMBINATION FOR TREATING CANCER

      
Application Number IB2019059459
Publication Number 2020/095183
Status In Force
Filing Date 2019-11-04
Publication Date 2020-05-14
Owner
  • PFIZER INC. (USA)
  • MERCK PATENT GMBH (Germany)
  • NEKTAR THERAPEUTICS (USA)
  • ASTELLAS PHARMA INC. (Japan)
Inventor
  • Boshoff, Christoffel Hendrik
  • Cesari, Rossano
  • Massacesi, Cristian
  • Charych, Deborah

Abstract

Provided herein are methods and combinations for treating a subject having cancer by administering to the subject a PD-1/PD-L1 axis inhibitor, a CD-122-biased- cytokine agonist, and an anti-androgen or a pharmaceutically acceptable salt thereof.

IPC Classes  ?

  • A61K 31/4166 - 1,3-Diazoles having oxo groups directly attached to the heterocyclic ring, e.g. phenytoin
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61P 35/00 - Antineoplastic agents
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • A61K 38/08 - Peptides having 5 to 11 amino acids

43.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONIST IN COMBINATION WITH ANOTHER PHARMACOLOGICALLY ACTIVE AGENT

      
Document Number 03119049
Status Pending
Filing Date 2019-11-08
Open to Public Date 2020-05-14
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Miyazaki, Takahiro
  • Madakamutil, Loui
  • Kivimae, Saul

Abstract

The instant disclosure provides a combination treatment, composition and kit comprising (a) a long-acting IL-15 receptor agonist and (b) one or more antibodies (mAb) targeting a tumor antigen, related methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/54 - Interleukins [IL]
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells

44.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONIST IN COMBINATION WITH ANOTHER PHARMACOLOGICALLY ACTIVE AGENT

      
Application Number US2019060609
Publication Number 2020/097556
Status In Force
Filing Date 2019-11-08
Publication Date 2020-05-14
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Miyazaki, Takahiro
  • Madakamutil, Loui
  • Kivimae, Saul

Abstract

The instant disclosure provides a combination treatment, composition and kit comprising (a) a long-acting IL-15 receptor agonist and (b) one or more antibodies (mAb) targeting a tumor antigen, related methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C07K 14/54 - Interleukins [IL]

45.

COMBINATIONS FOR TREATING CANCER

      
Application Number IB2019059460
Publication Number 2020/095184
Status In Force
Filing Date 2019-11-04
Publication Date 2020-05-14
Owner
  • PFIZER INC. (USA)
  • MERCK PATENT GMBH (Germany)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Boshoff, Christoffel Hendrik
  • Cesari, Rossano
  • Massacesi, Cristian
  • Charych, Deborah

Abstract

Provided herein are methods and combinations for treating a subject having cancer by administering to the subject a PD-1/PD-L1 axis inhibitor, a CD-122-biased- cytokine agonist, and optionally a PARP inhibitor.

IPC Classes  ?

  • A61K 31/5025 - PyridazinesHydrogenated pyridazines ortho- or peri-condensed with heterocyclic ring systems
  • A61K 38/08 - Peptides having 5 to 11 amino acids
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61P 35/00 - Antineoplastic agents
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

46.

METHOD OF MAKING RELEASABLE POLYMERIC REAGENTS

      
Application Number US2019055971
Publication Number 2020/077289
Status In Force
Filing Date 2019-10-11
Publication Date 2020-04-16
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Culbertson, Sean, M.
  • Mcmanus, Samuel, P.
  • Kozlowski, Antoni
  • Somu, Venkata

Abstract

The instant disclosure provides (among other things) improved methods of preparing fluorenyl-based polymeric reagents, methods of recovering and purifying such polymeric reagents, methods of reducing unwanted impurities in a fluorenyl-based polymeric reagent, fluorenyl-based polymeric reagents prepared by the methods described herein, and conjugates prepared by reaction with fluorenyl-based polymeric reagents prepared by the methods described herein.

IPC Classes  ?

  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

47.

METHOD OF MAKING RELEASABLE POLYMERIC REAGENTS

      
Document Number 03112834
Status Pending
Filing Date 2019-10-11
Open to Public Date 2020-04-16
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.
  • Kozlowski, Antoni
  • Somu, Venkata

Abstract

The instant disclosure provides (among other things) improved methods of preparing fluorenyl-based polymeric reagents, methods of recovering and purifying such polymeric reagents, methods of reducing unwanted impurities in a fluorenyl-based polymeric reagent, fluorenyl-based polymeric reagents prepared by the methods described herein, and conjugates prepared by reaction with fluorenyl-based polymeric reagents prepared by the methods described herein.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen

48.

Long-acting interleukin-15 receptor agonists and related immunotherapeutic compositions and methods

      
Application Number 16613757
Grant Number 12036283
Status In Force
Filing Date 2018-05-15
First Publication Date 2020-03-12
Grant Date 2024-07-16
Owner Nektar Therapeutics (USA)
Inventor
  • Kirk, Peter Benedict
  • Zhang, Ping
  • Brewer, Peiwen Kuo

Abstract

The instant disclosure provides a long acting IL-15 receptor agonist, related compositions and methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • C07K 16/24 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons
  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/04 - Antineoplastic agents specific for metastasis

49.

Oligomer-phenothiazine conjugates

      
Application Number 16599605
Grant Number 10869933
Status In Force
Filing Date 2019-10-11
First Publication Date 2020-02-06
Grant Date 2020-12-22
Owner Nektar Therapeutics (USA)
Inventor
  • Gu, Xuyuan
  • Riggs-Sauthier, Jennifer

Abstract

The invention relates to (among other things) oligomer-phenothiazine conjugates and related compounds. A conjugate of the invention, when administered by any of a number of administration routes, exhibits advantages over un-conjugated phenothiazine compounds.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

50.

Polymer-semaxanib moiety conjugates

      
Application Number 16592702
Grant Number 11007270
Status In Force
Filing Date 2019-10-03
First Publication Date 2020-01-30
Grant Date 2021-05-18
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Allums-Donald, Stephanie
  • Culbertson, Sean M.

Abstract

The invention relates to (among other things) polymer-semaxanib moiety conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over the semaxanib moiety in unconjugated form.

IPC Classes  ?

  • A61K 31/404 - Indoles, e.g. pindolol
  • C07D 209/34 - Oxygen atoms in position 2
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

51.

Immunotherapeutic treatment method using an interleukin-2 receptor beta-selective agonist in combination with adoptive cell transfer therapy

      
Application Number 16490443
Grant Number 11318164
Status In Force
Filing Date 2018-03-01
First Publication Date 2020-01-16
Grant Date 2022-05-03
Owner Nektar Therapeutics (USA)
Inventor
  • Charych, Deborah H.
  • Ribas, Antoni
  • Parisi, Giulia

Abstract

Provided are methods and compositions directed towards the treatment of an individual having cancer by providing adoptive cell transfer therapy and administering to the individual a long-acting IL-2Rβ-biased agonist.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 35/17 - LymphocytesB-cellsT-cellsNatural killer cellsInterferon-activated or cytokine-activated lymphocytes
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/04 - Antineoplastic agents specific for metastasis

52.

COMPOSITIONS OF POLYETHYLENE GLYCOL CONJUGATES OF INTERLEUKIN-2 AND THEIR USE TO MODULATE REGULATORY T CELLS

      
Document Number 03100204
Status Pending
Filing Date 2019-05-20
Open to Public Date 2019-11-28
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kirk, Peter Benedict
  • Langowski, John L
  • Zalevsky, Jonathan

Abstract

The present disclosure provides selective Treg stimulator compositions of RUR20kD-IL-2 and related compositions. These selective Treg stimulator compositions are IL-2-PEG conjugate mixtures of defined heterogeneity. They are intended for low dose subcutaneous administration to selectively restore Treg homeostasis with minimal impact on other immune cells. Compositions of the present disclosure provide selective Treg stimulator RUR20kD-IL-2 and related compositions, for use in the treatment of autoimmune diseases and inflammatory disorders. These compositions induce durable responses in immune inflammatory disorders by activating and expanding antigen specific T regulatory cells. Treatment of autoimmune disorders with low dose subcutaneous administration of an RUR20kD-IL-2 composition may provide means to selectively restore Treg homeostasis, with minimal impact on conventional T cell function , thereby providing an alternative and/or improved approach to alleviate these disorders.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 37/00 - Drugs for immunological or allergic disorders

53.

SELECTIVE TREG STIMULATOR RUR20kD-IL-2 AND RELATED COMPOSITIONS

      
Application Number US2019033100
Publication Number 2019/226538
Status In Force
Filing Date 2019-05-20
Publication Date 2019-11-28
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kirk, Peter Benedict
  • Langowski, John L
  • Zalevesky, Jonathan

Abstract

The instant disclosure provides selective Treg stimulator compositions, including RUR20kD-IL-2 and related compositions, and methods of using these compositions, for example, for treating autoimmune diseases, and/or other conditions responsive to therapy that is effective to provide a selective increase in numbers and activation of regulatory T cells over effector T cells.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 37/00 - Drugs for immunological or allergic disorders

54.

Kappa opioid agonists and uses thereof

      
Application Number 16529504
Grant Number 11111214
Status In Force
Filing Date 2019-08-01
First Publication Date 2019-11-21
Grant Date 2021-09-07
Owner Nektar Therapeutics (USA)
Inventor
  • Anand, Neel K.
  • Duarte, Franco J.
  • Zhang, Wen
  • Ren, Zhongxu

Abstract

Provided are compounds of Formula I; and pharmaceutically acceptable salts and solvates thereof: The compounds of Formula I described herein relate to and/or have application(s) in (among others) the fields of drug discovery, pharmacotherapy, physiology, organic chemistry and polymer chemistry.

IPC Classes  ?

  • C07D 207/12 - Oxygen or sulfur atoms
  • C07D 205/04 - Heterocyclic compounds containing four-membered rings with one nitrogen atom as the only ring hetero atom not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • C07D 207/14 - Nitrogen atoms not forming part of a nitro radical
  • C07D 295/125 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings
  • C07D 207/09 - Radicals substituted by nitrogen atoms not forming part of a nitro radical
  • C07C 233/40 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having the nitrogen atom of at least one of the carboxamide groups bound to a carbon atom of a hydrocarbon radical substituted by amino groups with the substituted hydrocarbon radical bound to the nitrogen atom of the carboxamide group by an acyclic carbon atom having the carbon atom of the carboxamide group bound to an acyclic carbon atom of a carbon skeleton containing six-membered aromatic rings
  • C07D 333/48 - Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms
  • C07D 241/04 - Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
  • C07D 213/56 - Amides
  • C07D 213/61 - Halogen atoms or nitro radicals
  • C07C 233/05 - Carboxylic acid amides having carbon atoms of carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms having nitrogen atoms of carboxamide groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with carbon atoms of carboxamide groups bound to carbon atoms of an acyclic saturated carbon skeleton having the nitrogen atoms of the carboxamide groups bound to hydrogen atoms or to acyclic carbon atoms
  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 409/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links

55.

CONJUGATES OF AN IL-7 MOIETY AND A POLYMER

      
Application Number 15556996
Status Pending
Filing Date 2016-03-11
First Publication Date 2019-09-26
Owner Nektar Therapeutics (USA)
Inventor
  • Charych, Deborah H.
  • Zhang, Ping
  • Kirk, Peter Benedict

Abstract

Conjugates of an IL-7 moiety and one or more nonpeptidic, water-soluble polymers are provided. Typically, the non-peptidic, water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided, among other things, are compositions comprising conjugates, methods of making conjugates, and methods of administering compositions to an individual.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

56.

Oligomer-beta blocker conjugates

      
Application Number 16277785
Grant Number 10881738
Status In Force
Filing Date 2019-02-15
First Publication Date 2019-06-13
Grant Date 2021-01-05
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Duarte, Franco J.
  • Hammons, Aaron S.

Abstract

The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer. A conjugate of the invention, when administered by any of a number of administration routes, exhibits a different biological membrane crossing rate as compared to the biological membrane crossing rate of the small molecule drug not attached to the water-soluble oligomer.

IPC Classes  ?

  • A61K 31/135 - Amines, e.g. amantadine having aromatic rings, e.g. methadone
  • C07C 211/00 - Compounds containing amino groups bound to a carbon skeleton
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

57.

IMMUNOTHERAPEUTIC COMBINATION FOR TREATING CANCER

      
Application Number US2018059498
Publication Number 2019/094396
Status In Force
Filing Date 2018-11-06
Publication Date 2019-05-16
Owner
  • NEKTAR THERAPEUTICS (USA)
  • NOUSCOM AG (Switzerland)
Inventor
  • Zalevsky, Jonathan
  • Nicosia, Alfredo
  • Scarselli, Elisa
  • D'Alse, Anna, Morena

Abstract

Provided herein are methods and compositions for treating a subject having cancer by administering to the subject a neoantigen-based vaccine composition and a long acting, IL-2RPβ-selective agonist composition comprised of compounds of Formula (I), and optionally, an anti-PD-1 antibody.

IPC Classes  ?

  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies
  • A61P 37/02 - Immunomodulators
  • C07K 14/495 - Transforming growth factor [TGF]
  • C07K 14/71 - ReceptorsCell surface antigensCell surface determinants for growth factorsReceptorsCell surface antigensCell surface determinants for growth regulators
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

58.

Polymer-des-ethyl sunitinib conjugates

      
Application Number 16243914
Grant Number 11406618
Status In Force
Filing Date 2019-01-09
First Publication Date 2019-05-16
Grant Date 2022-08-09
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Culbertson, Sean M.
  • Shen, Xiaoming
  • Mcmanus, Samuel P.
  • Wilson, Mark A.

Abstract

The invention relates to (among other things) polymer-des-ethyl sunitinib conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over des-ethyl sunitinib in unconjugated form.

IPC Classes  ?

  • A61K 31/404 - Indoles, e.g. pindolol
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents

59.

METHODS AND COMPOSITIONS FOR TREATING CANCER BY MODIFYING MULTIPLE ARMS OF THE IMMUNE SYSTEM

      
Application Number US2018060699
Publication Number 2019/094916
Status In Force
Filing Date 2018-11-13
Publication Date 2019-05-16
Owner
  • BIOXCEL THERAPEUTICS, INC. (USA)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Nandabalan, Krishnan
  • Mehta, Vimal D.
  • Rastelli, Luca
  • Zalevsky, Jonathan
  • Charych, Deborah H.
  • Macdougall, John

Abstract

Provided herein are combination methods and compositions for cancer therapies. The combinations modify multiple arms of the immune system, including an innate immunity modifier, an immune checkpoint inhibitor and a T-cell stimulator, to treat cancer.

IPC Classes  ?

  • A61K 38/04 - Peptides having up to 20 amino acids in a fully defined sequenceDerivatives thereof
  • A61K 38/20 - Interleukins
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

60.

METHODS OF TREATING A TUMOR

      
Application Number US2018059448
Publication Number 2019/090330
Status In Force
Filing Date 2018-11-06
Publication Date 2019-05-09
Owner
  • BRISTOL-MYERS SQUIBB COMPANY (USA)
  • NEKTAR THERAPEUTICS (USA)
Inventor
  • Clemens, Wendy L.
  • Zalevsky, Jonathan
  • Hoch, Ute
  • Tagliaferri, Mary

Abstract

This disclosure provides methods for treating a tumor in a subject comprising administering to the subject an anti-PD-1 antibody and a CD-122-biased agonist. In some embodiments, the tumor is derived from a melanoma, a renal cell carcinoma (RCC), a non-small cell lung carcinoma (NSCLC), a urothelial cancer (UC), a breast cancer, or any combination thereof.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/55 - IL-2
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

61.

Derivatives of 6-(2,3-dichlorophenyl)-1,2,4-triazin-5-amine

      
Application Number 16182387
Grant Number 10844076
Status In Force
Filing Date 2018-11-06
First Publication Date 2019-03-07
Grant Date 2020-11-24
Owner Nektar therapeutics (USA)
Inventor
  • Sharma, Pankaj
  • Khatri, Vijay Kumar
  • Gu, Xuyuan
  • Song, Yuan
  • Shen, Michael Lixin
  • Riggs-Sauthier, Jennifer
  • Anand, Neel K.
  • Kozlowski, Antoni
  • Odinecs, Aleksandrs
  • Riley, Timothy A.
  • Ren, Zhongxu
  • Mu, Yongqi
  • Shen, Xiaoming
  • Yuan, Xuejun
  • Aurrecoechea, Natalia
  • O'Mahony, Donogh John Roger
  • Deng, Bo-Liang

Abstract

The instant disclosure relates to (among other things) compounds that are derivatives of 6-(2,3-dichlorophenyl)-1,2,4-triazin-5-amine. The compounds provided possess unique effects and differences over other phenyltriazines known in the art.

IPC Classes  ?

  • C07D 253/075 - Two hetero atoms, in positions 3 and 5
  • C07D 401/04 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 403/04 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 403/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 498/04 - Ortho-condensed systems
  • C07D 471/10 - Spiro-condensed systems
  • A61K 31/53 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with three nitrogens as the only ring hetero atoms, e.g. chlorazanil, melamine
  • A61P 25/02 - Drugs for disorders of the nervous system for peripheral neuropathies
  • A61P 25/28 - Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
  • A61P 33/06 - Antimalarials
  • A61K 31/496 - Non-condensed piperazines containing further heterocyclic rings, e.g. rifampin, thiothixene or sparfloxacin
  • C07D 405/12 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a chain containing hetero atoms as chain links

62.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD

      
Document Number 03072320
Status Pending
Filing Date 2018-08-17
Open to Public Date 2019-02-21
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Zalevsky, Jonathan
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra V.
  • Tagliaferri, Mary
  • Rubas, Werner
  • Kivimae, Saul
  • Pena, Rhoneil L.

Abstract

Disclosed herein are methods in the field of cancer immunotherapy that involve the treatment of a subject having cancer by administering to the subject a toll-like receptor 7/8 (TLR7/8) agonist in combination with a long-acting IL-2R.beta.-biased agonist and a programmed cell death protein 1 (PD-1 ) / programmed cell death protein ligand 1 (PD-L1 ) axis inhibitor, and related compositions, dosage forms, and kits.

IPC Classes  ?

  • A61K 31/77 - Polymers containing oxygen of oxiranes
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61P 35/00 - Antineoplastic agents

63.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD

      
Application Number US2018000318
Publication Number 2019/036031
Status In Force
Filing Date 2018-08-17
Publication Date 2019-02-21
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Zalevsky, Jonathan
  • Anand, Neel, K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra, V.
  • Tagliaferri, Mary
  • Rubas, Werner
  • Kivimae, Saul
  • Pena, Rhoneil, L.

Abstract

Disclosed herein are methods in the field of cancer immunotherapy that involve the treatment of a subject having cancer by administering to the subject a toll-like receptor 7/8 (TLR7/8) agonist in combination with a long-acting IL-2Rβ-biased agonist and a programmed cell death protein 1 (PD-1 ) / programmed cell death protein ligand 1 (PD-L1 ) axis inhibitor, and related compositions, dosage forms, and kits.

IPC Classes  ?

  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 31/77 - Polymers containing oxygen of oxiranes
  • A61P 35/00 - Antineoplastic agents

64.

Composition comprising a polymeric reagent

      
Application Number 16160770
Grant Number 10695435
Status In Force
Filing Date 2018-10-15
First Publication Date 2019-02-14
Grant Date 2020-06-30
Owner Nektar Therapeutics (USA)
Inventor
  • Bentley, Michael D.
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.

Abstract

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

IPC Classes  ?

  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 61/02 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
  • C07C 235/68 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced
  • C07D 207/46 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
  • C07K 14/575 - Hormones
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C08G 65/338 - Polymers modified by chemical after-treatment with inorganic and organic compounds
  • A61K 38/26 - Glucagons
  • A61K 38/28 - Insulins
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/334 - Polymers modified by chemical after-treatment with organic compounds containing sulfur
  • C08K 5/13 - PhenolsPhenolates
  • A61K 31/765 - Polymers containing oxygen

65.

Oligomer-opioid agonist conjugates

      
Application Number 16165364
Grant Number 10512644
Status In Force
Filing Date 2018-10-19
First Publication Date 2019-02-14
Grant Date 2019-12-24
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Deng, Bo-Liang
  • Riley, Timothy A.

Abstract

The invention provides compounds that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits characteristics that are different from those of the compound not attached to the water-soluble oligomer.

IPC Classes  ?

  • A61K 31/485 - Morphinan derivatives, e.g. morphine, codeine
  • C07D 489/04 - SaltsOrganic complexes
  • A61K 31/439 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom the ring forming part of a bridged ring system, e.g. quinuclidine
  • C07D 489/02 - Heterocyclic compounds containing 4aH-8, 9 c- Iminoethano-phenanthro [4, 5-b, c, d] furan ring systems, e.g. derivatives of [4, 5-epoxy]-morphinan of the formula: with oxygen atoms attached in positions 3 and 6, e.g. morphine, morphinone
  • A61K 31/402 - 1-aryl-substituted, e.g. piretanide
  • A61K 31/4025 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil not condensed and containing further heterocyclic rings, e.g. cromakalim
  • A61K 31/4468 - Non-condensed piperidines, e.g. piperocaine having a nitrogen atom directly attached in position 4, e.g. clebopride, fentanyl
  • A61K 47/10 - AlcoholsPhenolsSalts thereof, e.g. glycerolPolyethylene glycols [PEG]PoloxamersPEG/POE alkyl ethers
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

66.

WATER-SOLUBLE POLYMER-LINKED BINDING MOIETY AND DRUG COMPOUNDS

      
Application Number 16149871
Status Pending
Filing Date 2018-10-02
First Publication Date 2019-01-31
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Charych, Deborah H.
  • Eid, Jr., Clark Norman
  • Fry, Dennis G.
  • Konakova, Marina
  • Loehrlein, Christine Frances

Abstract

Compounds comprising a binding moiety, water-soluble, non-peptidic polymer, and drug are provided. Also provided are methods preparing such compounds, compositions comprising such compounds and methods for administering and using such compounds and compositions.

IPC Classes  ?

  • A61K 47/68 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an antibody, an immunoglobulin or a fragment thereof, e.g. an Fc-fragment
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

67.

ORAL TABLET FORMULATIONS

      
Application Number US2018043733
Publication Number 2019/023368
Status In Force
Filing Date 2018-07-25
Publication Date 2019-01-31
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Maddineni, Sindhuri
  • Mandge, Shailendra
  • Mukherjee, Sourish
  • Nair, Vinod, Balakrishnan
  • Sekuboyina, Vijaya Srinivas
  • Gaddam, Praveen
  • Brodbeck, Kevin J.
  • Gadiraju, Ramakrishna
  • Ge, Xue
  • Eldon, Michael, A.
  • Odinecs, Aleksandrs
  • Goda, Satyanarayana
  • Tandale, Rajendra
  • Bhattacharya, Shiladitya

Abstract

Described herein are solid, pharmaceutical compositions, dosage forms and methods of making and using the same, wherein the solid compositions comprise at least one high viscosity agent. The solid, high viscosity agent-comprising pharmaceutical compositions, when comprised of an opioid drug, can reduce the potential for abuse of such drug. The solid dosage forms are characterized by having a significantly reduced extractability of an opioid drug comprised therein upon contact of the dosage form with a solvent such as a typical household solvent. The solid dosage forms, following contact with a household solvent, such as an aqueous or alcoholic solvent, generate a high viscosity solution, thereby discouraging abuse of the resulting formulation via intravenous (IV) injection.

IPC Classes  ?

  • A61K 9/20 - Pills, lozenges or tablets
  • A61P 25/04 - Centrally acting analgesics, e.g. opioids
  • A61K 31/485 - Morphinan derivatives, e.g. morphine, codeine

68.

Multi-arm polymeric prodrug conjugates of taxane-based compounds

      
Application Number 16125341
Grant Number 11813241
Status In Force
Filing Date 2018-09-07
First Publication Date 2019-01-10
Grant Date 2023-11-14
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Riley, Timothy A.
  • Mcmanus, Samuel P.

Abstract

Among other aspects, provided herein are multi-arm polymeric prodrug conjugates of taxane-based compounds and/or fluorinated forms thereof. Methods of preparing such conjugates as well as methods of administering the conjugates are also provided. Upon administration to a patient, release of the taxane-based compound is achieved.

IPC Classes  ?

  • A61K 31/337 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/329 - Polymers modified by chemical after-treatment with organic compounds
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C07D 305/14 - Heterocyclic compounds containing four-membered rings having one oxygen atom as the only ring hetero atoms condensed with carbocyclic rings or ring systems

69.

Method of refolding an interleukin-2 (IL-2) protein

      
Application Number 16139957
Grant Number 11091525
Status In Force
Filing Date 2018-09-24
First Publication Date 2019-01-10
Grant Date 2021-08-17
Owner Nektar Therapeutics (USA)
Inventor
  • Huang, Jicai
  • Wang, Yujun

Abstract

Conjugates of an interleukin-2 (“IL-2”) moiety and one or more nonpeptidic, water-soluble polymers are provided. Typically, the non-peptidic, water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided, among other things, are compositions comprising conjugates, methods of making conjugates, methods of administering compositions to an individual, nucleic acid sequences, expression systems, host cells, and methods for preparing IL-moieties.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C07K 14/55 - IL-2

70.

OLIGOMER CONJUGATES OF LIDOCAINE AND ITS DERIVATIVES

      
Application Number 16115310
Status Pending
Filing Date 2018-08-28
First Publication Date 2019-01-03
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Deng, Bo-Liang

Abstract

The invention provides small molecule drugs that are chemically modified by covalent attachment of a water-soluble oligomer.

IPC Classes  ?

  • C07C 237/04 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atoms of the carboxamide groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated
  • A61K 47/55 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound the modifying agent being also a pharmacologically or therapeutically active agent, i.e. the entire conjugate being a codrug, i.e. a dimer, oligomer or polymer of pharmacologically or therapeutically active compounds
  • C07C 217/18 - Compounds containing amino and etherified hydroxy groups bound to the same carbon skeleton having etherified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being acyclic and saturated having only one etherified hydroxy group and one amino group bound to the carbon skeleton, which is not further substituted the oxygen atom of the etherified hydroxy group being further bound to a carbon atom of a six-membered aromatic ring the six-membered aromatic ring or condensed ring system containing that ring being further substituted
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

71.

Opioid agonists and uses thereof

      
Application Number 16109456
Grant Number 10865186
Status In Force
Filing Date 2018-08-22
First Publication Date 2018-12-20
Grant Date 2020-12-15
Owner Nektar Therapeutics (USA)
Inventor
  • Duarte, Franco J.
  • Anand, Neel K.
  • Sharma, Pankaj
  • Singh, Devendrapratap

Abstract

Provided are compounds, including those of Formula I; and pharmaceutically acceptable salts and solvates thereof. The compounds described herein relate to and/or have application(s) in (among others) the fields of drug discovery, pharmacotherapy, physiology, organic chemistry and polymer chemistry.

IPC Classes  ?

  • C07D 221/26 - Benzomorphans
  • C07D 513/08 - Bridged systems
  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links

72.

Protease inhibitors having enhanced features

      
Application Number 16107689
Grant Number 10806794
Status In Force
Filing Date 2018-08-21
First Publication Date 2018-12-13
Grant Date 2020-10-20
Owner Nektar Therapeutics (USA)
Inventor
  • Jude-Fishburn, C. Simone
  • Vanderveen, Laurie A.
  • Riley, Timothy A.

Abstract

Provided herein (among other things) are protease inhibitor compounds having enhanced features, along with methods for administering such compounds. For example, the subject compounds can be administered without concomitant administration of a CYP3A4 inhibitor, have increased therapeutic index and/or increased potency, and are low-resistance inducing in nature.

IPC Classes  ?

  • A61K 31/655 - Azo (—N=N—), diazo (=N2), azoxy (N—O—N or N(=O)—N), azido (—N3) or diazoamino (—N=N—N) compounds
  • A61K 31/34 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having five-membered rings with one oxygen as the only ring hetero atom, e.g. isosorbide
  • A61K 47/55 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound the modifying agent being also a pharmacologically or therapeutically active agent, i.e. the entire conjugate being a codrug, i.e. a dimer, oligomer or polymer of pharmacologically or therapeutically active compounds
  • A61K 31/4402 - Non-condensed pyridinesHydrogenated derivatives thereof only substituted in position 2, e.g. pheniramine, bisacodyl
  • A61K 31/4433 - Non-condensed pyridinesHydrogenated derivatives thereof containing further heterocyclic ring systems containing a six-membered ring with oxygen as a ring hetero atom
  • A61K 31/635 - Compounds containing para-N-benzene- sulfonyl-N-groups, e.g. sulfanilamide, p-nitrobenzenesulfonohydrazide having a heterocyclic ring, e.g. sulfadiazine
  • A61K 38/05 - Dipeptides
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

73.

Il-2Rβ-selective agonists in combination with an anti-CTLA-4 antibody or an anti-PD-1 antibody

      
Application Number 15997487
Grant Number 10786552
Status In Force
Filing Date 2018-06-04
First Publication Date 2018-12-06
Grant Date 2020-09-29
Owner Nektar Therapeutics (USA)
Inventor
  • Addepalli, Murali Krishna
  • Charych, Deborah H.
  • Kantak, Seema
  • Lee, Steven Robert

Abstract

The invention relates to (among other things) a method of administering to a patient suffering from a cancer, the method comprising the steps of: (a) administering an IL-2Rβ-activating amount of a long acting, IL-2Rβ-selective agonist; and (b) administering a CTLA-4 pathway-inhibiting amount of an anti-CTLA-4 antibody or a PD-1 pathway-inhibiting amount of an anti-PD-1 antibody.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants
  • C07K 16/30 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants from tumour cells
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies

74.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONISTS AND RELATED IMMUNOTHERAPEUTIC COMPOSITIONS AND METHODS

      
Document Number 03060410
Status Pending
Filing Date 2018-05-15
Open to Public Date 2018-11-22
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kirk, Peter Benedict
  • Zhang, Ping
  • Brewer, Peiwen Kuo

Abstract

The instant disclosure provides a long acting IL-15 receptor agonist, related compositions and methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents
  • C07K 14/54 - Interleukins [IL]

75.

LONG-ACTING INTERLEUKIN-15 RECEPTOR AGONISTS AND RELATED IMMUNOTHERAPEUTIC COMPOSITIONS AND METHODS

      
Application Number US2018032817
Publication Number 2018/213341
Status In Force
Filing Date 2018-05-15
Publication Date 2018-11-22
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kirk, Peter, Benedict
  • Zhang, Ping
  • Brewer, Peiwen, Kuo

Abstract

The instant disclosure provides a long acting IL-15 receptor agonist, related compositions and methods of preparation and use, for example, in the treatment of conditions responsive to therapy effective to provide, for example, sustained immune activation and/or anti-tumor activity.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C07K 14/54 - Interleukins [IL]

76.

Polymeric alpha-hydroxy aldehyde and ketone reagents and conjugation method

      
Application Number 15867524
Grant Number 10759906
Status In Force
Filing Date 2018-01-10
First Publication Date 2018-11-15
Grant Date 2020-09-01
Owner Nektar Therapeutics (USA)
Inventor
  • Culbertson, Sean M.
  • Shen, Xiaoming
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.

Abstract

Provided herein are polymeric α-hydroxy aldehyde or α-hydroxy ketone reagents which can be conjugated to amine-containing compounds to form stable conjugates in a single-step reaction. In selected embodiments, the polymeric reagent itself incorporates an internal proton-abstracting (basic) functional group, to promote more efficient reaction. The substituent is appropriately situated, via a linker if necessary, to position the group for proton abstraction, preferably providing a 4- or 5-bond spacing between the abstracting atom and the hydrogen atom on the α-carbon. Also provided are methods of using the reagents and stable, solubilized conjugates of the reagents with biologically active compounds. In preferred embodiments, the polymeric component of the reagent or conjugate is a polyethylene glycol.

IPC Classes  ?

  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
  • C08L 71/02 - Polyalkylene oxides
  • C07K 1/00 - General processes for the preparation of peptides
  • C07K 17/08 - Peptides being immobilised on, or in, an organic carrier the carrier being a synthetic polymer
  • C08G 65/331 - Polymers modified by chemical after-treatment with organic compounds containing oxygen
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • A61K 38/00 - Medicinal preparations containing peptides

77.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD

      
Document Number 03062291
Status Pending
Filing Date 2018-05-02
Open to Public Date 2018-11-08
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kivimae, Saul
  • Hennessy, Marlene
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra V.

Abstract

Provided is a method of administering to a patient having cancer: (a) a 4-1BB agonist; (b) an IL-2Rß-activating amount of a long-acting, IL-2Rß-selective agonist; and/or (c) a toll-like receptor agonist, as well as related compositions, kits and compositions.

IPC Classes  ?

  • A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

78.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD

      
Application Number US2018030714
Publication Number 2018/204528
Status In Force
Filing Date 2018-05-02
Publication Date 2018-11-08
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Kivimae, Saul
  • Hennessy, Marlene
  • Anand, Neel, K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Ren, Zhongxu
  • Joshi, Bhalchandra, V.

Abstract

Provided is a method of administering to a patient having cancer: (a) a 4-1BB agonist; (b) an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and/or (c) a toll-like receptor agonist, as well as related compositions, kits and compositions.

IPC Classes  ?

  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • C07K 16/28 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against receptors, cell surface antigens or cell surface determinants

79.

Combination of an IL-2RBETA-selective agonist and a long-acting IL-15 agonist

      
Application Number 15765207
Grant Number 12233104
Status In Force
Filing Date 2016-10-07
First Publication Date 2018-10-18
Grant Date 2025-02-25
Owner Nektar Therapeutics (USA)
Inventor
  • Charych, Deborah H.
  • Kirk, Peter Benedict

Abstract

In one or more embodiments of the invention, a method is provided, the method comprising the steps of administering to a cancer patient: (a) an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and (b) an IL-15R-activating amount of a long-acting, IL-15 moiety. In one or more embodiments of the invention, a composition is provided, the composition comprising: an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and an IL-15R-activating amount of a long-acting, IL-15 moiety. In one or more embodiments of the invention, a kit is provided, the kit comprising: an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; an IL-15R-activating amount of a long-acting, IL-15 moiety; and instructions for use of the IL-2Rβ-selective agonist and the long-acting, IL-15 moiety.

IPC Classes  ?

  • A61K 38/20 - Interleukins
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents

80.

Compositions, dosage forms, and co-administration of an opioid agonist compound and an analgesic compound

      
Application Number 15893200
Grant Number 10525054
Status In Force
Filing Date 2018-02-09
First Publication Date 2018-10-18
Grant Date 2020-01-07
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Riley, Timothy A.
  • Pfeiffer, Juergen W.
  • Gursahani, Hema

Abstract

The present invention relates generally to the co-administration of an opioid agonist compound and an analgesic compound. In addition, the invention relates to, among other things, dosage forms for co-administration of an opioid agonist compound and an analgesic compound, methods for administering an opioid agonist compound and an analgesic compound, compositions comprising an opioid agonist compound and an analgesic compound, dosage forms comprising an opioid agonist compound and an analgesic compound, and so on.

IPC Classes  ?

  • A61K 31/485 - Morphinan derivatives, e.g. morphine, codeine
  • A61K 31/785 - Polymers containing nitrogen
  • A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
  • A61K 31/196 - Carboxylic acids, e.g. valproic acid having an amino group the amino group being directly attached to a ring, e.g. anthranilic acid, mefenamic acid, diclofenac, chlorambucil
  • A61K 31/75 - Polymers of hydrocarbons of ethene
  • A61K 31/4468 - Non-condensed piperidines, e.g. piperocaine having a nitrogen atom directly attached in position 4, e.g. clebopride, fentanyl
  • A61K 31/407 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil condensed with heterocyclic ring systems, e.g. ketorolac, physostigmine
  • A61K 31/5415 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one sulfur as the ring hetero atoms, e.g. sulthiame ortho- or peri-condensed with carbocyclic ring systems, e.g. phenothiazine, chlorpromazine, piroxicam
  • A61K 31/192 - Carboxylic acids, e.g. valproic acid having aromatic groups, e.g. sulindac, 2-aryl-propionic acids, ethacrynic acid
  • A61K 31/405 - Indole-alkanecarboxylic acidsDerivatives thereof, e.g. tryptophan, indomethacin
  • A61P 29/00 - Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agentsNon-steroidal antiinflammatory drugs [NSAID]
  • A61P 25/04 - Centrally acting analgesics, e.g. opioids

81.

Oligomer-opioid agonist conjugates

      
Application Number 15791951
Grant Number 10143690
Status In Force
Filing Date 2017-10-24
First Publication Date 2018-09-13
Grant Date 2018-12-04
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Deng, Bo-Liang
  • Riley, Timothy A.

Abstract

The invention provides compounds that are chemically modified by covalent attachment of a water-soluble oligomer. A compound of the invention, when administered by any of a number of administration routes, exhibits characteristics that are different from those of the compound not attached to the water-soluble oligomer.

IPC Classes  ?

  • C07D 489/02 - Heterocyclic compounds containing 4aH-8, 9 c- Iminoethano-phenanthro [4, 5-b, c, d] furan ring systems, e.g. derivatives of [4, 5-epoxy]-morphinan of the formula: with oxygen atoms attached in positions 3 and 6, e.g. morphine, morphinone
  • A61K 31/485 - Morphinan derivatives, e.g. morphine, codeine
  • A61K 47/10 - AlcoholsPhenolsSalts thereof, e.g. glycerolPolyethylene glycols [PEG]PoloxamersPEG/POE alkyl ethers

82.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD USING AN INTERLEUKIN-2 RECEPTOR ALPHA, BETA-SELECTIVE AGONIST IN COMBINATION WITH ADOPTIVE CELL TRANSFER THERAPY

      
Application Number US2018020514
Publication Number 2018/160877
Status In Force
Filing Date 2018-03-01
Publication Date 2018-09-07
Owner
  • NEKTAR THERAPEUTICS (USA)
  • THE REGENTS OF THE UNIVERSITY OF CALIFORNIA (USA)
Inventor
  • Charych, Deborah, H.
  • Ribas, Antoni
  • Parisi, Giulia

Abstract

Provided are methods and compositions directed towards the treatment of an individual having cancer by providing adoptive cell transfer therapy and administering to the individual a long acting IL-2Rαβ-biased agonist.

IPC Classes  ?

  • A61K 38/00 - Medicinal preparations containing peptides
  • C07K 14/435 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from animalsPeptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from humans
  • C07K 19/00 - Hybrid peptides

83.

Oligomer-phenothiazine conjugates

      
Application Number 15968561
Grant Number 10485877
Status In Force
Filing Date 2018-05-01
First Publication Date 2018-08-30
Grant Date 2019-11-26
Owner Nektar Therapeutics (USA)
Inventor
  • Gu, Xuyuan
  • Riggs-Sauthier, Jennifer

Abstract

The invention relates to (among other things) oligomer-phenothiazine conjugates and related compounds. A conjugate of the invention, when administered by any of a number of administration routes, exhibits advantages over un-conjugated phenothiazine compounds.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

84.

MULTI-ARM POLYMER CONJUGATES OF TLR AGONIST COMPOUNDS AND RELATED IMMUNOTHERAPEUTIC TREATMENT METHODS

      
Document Number 03049254
Status Pending
Filing Date 2018-01-10
Open to Public Date 2018-07-19
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Ren, Zhongxu
  • Anand, Neel K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Joshi, Bhalchandra V.
  • Zalevsky, Jonathan
  • Miyazaki, Takahiro
  • Kivimae, Saul

Abstract

Provided are multi-arm polymer conjugates of Toll-Like Receptor ("TLR") agonists such as TLR 7/8 agonists, as well as related compositions, and methods of making and using such conjugates. Exemplary conjugates are encompassed by Formula I: (I) or a pharmaceutically acceptable salt form thereof, where R, taken together with each Q, is a residue of a polyol, polythiol, or polyamine bearing from 3 to about 50 hydroxyl, thiol, or amino groups; each Q is a linker selected from oxygen, sulfur and -NH; each POLY is independently a water-soluble, non-peptidic polymer; each Xr is independently a linkage-containing spacer moiety; q is a positive integer from 3 to about 50; and each TLR 7/8 AG is a Toll-like receptor 7/8 agonist. Also provided is a method of administering to a patient having cancer (a) an IL-2Rß-activating amount of a long-acting, IL-2Rß-selective agonist; and (b) a Toll-like receptor agonist such as a conjugate as described above, as well as related compositions, kits and methods.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents

85.

MULTI-ARM POLYMER CONJUGATES OF TLR AGONIST COMPOUNDS AND RELATED IMMUNOTHERAPEUTIC TREATMENT METHODS

      
Application Number US2018013199
Publication Number 2018/132496
Status In Force
Filing Date 2018-01-10
Publication Date 2018-07-19
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Ren, Zhongxu
  • Anand, Neel, K.
  • Cai, Haiying
  • Deng, Bo-Liang
  • Joshi, Bhalchandra, V.
  • Zalevsky, Jonathan
  • Miyazaki, Takahiro
  • Kivimae, Saul

Abstract

Provided are multi-arm polymer conjugates of Toll-Like Receptor ("TLR") agonists such as TLR 7/8 agonists, as well as related compositions, and methods of making and using such conjugates. Exemplary conjugates are encompassed by Formula I: (I) or a pharmaceutically acceptable salt form thereof, where R, taken together with each Q, is a residue of a polyol, polythiol, or polyamine bearing from 3 to about 50 hydroxyl, thiol, or amino groups; each Q is a linker selected from oxygen, sulfur and -NH; each POLY is independently a water-soluble, non-peptidic polymer; each Xr is independently a linkage-containing spacer moiety; q is a positive integer from 3 to about 50; and each TLR 7/8 AG is a Toll-like receptor 7/8 agonist. Also provided is a method of administering to a patient having cancer (a) an IL-2Rβ-activating amount of a long-acting, IL-2Rβ-selective agonist; and (b) a Toll-like receptor agonist such as a conjugate as described above, as well as related compositions, kits and methods.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61P 35/00 - Antineoplastic agents

86.

Oligomer-containing benzamide-based compounds

      
Application Number 15908286
Grant Number 10434181
Status In Force
Filing Date 2018-02-28
First Publication Date 2018-07-05
Grant Date 2019-10-08
Owner Nektar Therapeutics (USA)
Inventor
  • Cheng, Lin
  • Riggs-Sauthier, Jennifer
  • Anand, Neel K.

Abstract

The invention relates to (among other things) oligomer-containing benzamide-based compound compounds. A compound of the invention exhibits one or more advantages over corresponding compounds lacking the oligomer.

IPC Classes  ?

  • C07C 237/44 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton having carbon atoms of carboxamide groups, amino groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring
  • A61K 47/59 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes
  • A61K 31/166 - Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide having the carbon atom of a carboxamide group directly attached to the aromatic ring, e.g. procainamide, procarbazine, metoclopramide, labetalol
  • C07C 231/12 - Preparation of carboxylic acid amides by reactions not involving the formation of carboxamide groups
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

87.

Polymer-semaxanib moiety conjugates

      
Application Number 15910830
Grant Number 10463744
Status In Force
Filing Date 2018-03-02
First Publication Date 2018-07-05
Grant Date 2019-11-05
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Allums-Donald, Stephanie
  • Culbertson, Sean M.

Abstract

The invention relates to (among other things) polymer-semaxanib moiety conjugates and related compounds. A compound of the invention, when administered by any of a number of administration routes, exhibits advantages over the semaxanib moiety in unconjugated form.

IPC Classes  ?

  • A61K 31/404 - Indoles, e.g. pindolol
  • A61K 47/54 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic compound
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C07D 209/34 - Oxygen atoms in position 2

88.

N-optionally substituted aryl-2-oligomer-3-alkoxypropionamides

      
Application Number 15875864
Grant Number 10265411
Status In Force
Filing Date 2018-01-19
First Publication Date 2018-05-24
Grant Date 2019-04-23
Owner Nektar Therapeutics (USA)
Inventor
  • Riggs-Sauthier, Jennifer
  • Zhang, Wen

Abstract

The invention relates to (among other things) N-optionally substituted aryl-2-oligomer-3-alkoxypropionamides and compositions comprising the same. A compound of the invention, when administered by any of a number of administration routes, exhibits one or more advantages over corresponding compounds lacking the oligomer.

IPC Classes  ?

  • C07D 235/22 - BenzimidazolesHydrogenated benzimidazoles with hetero atoms directly attached to ring nitrogen atoms
  • C07C 269/04 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups
  • C08F 8/30 - Introducing nitrogen atoms or nitrogen-containing groups
  • C08F 8/32 - Introducing nitrogen atoms or nitrogen-containing groups by reaction with amines
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 31/165 - Amides, e.g. hydroxamic acids having aromatic rings, e.g. colchicine, atenolol, progabide

89.

IMMUNOTHERAPEUTIC TUMOR TREATMENT METHOD

      
Application Number US2017060911
Publication Number 2018/089669
Status In Force
Filing Date 2017-11-09
Publication Date 2018-05-17
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Charych, Deborah, H.
  • Miyazaki, Takahiro
  • Overwijk, Willem
  • Hwu, Patrick
  • Sharma, Meenu

Abstract

Provided herein are methods and compositions for treating a subject having cancer by administering to the subject a cancer vaccine accompanied by administration of a long acting IL-2Rαβ-biased agonist.

IPC Classes  ?

90.

Morphinan derivatives for the treatment of neuropathic pain

      
Application Number 15569726
Grant Number 10766864
Status In Force
Filing Date 2016-05-05
First Publication Date 2018-05-10
Grant Date 2020-09-08
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Anand, Neel K.
  • Aurrecoechea, Natalia
  • Cheng, Lin
  • Deng, Bo-Liang
  • O'Mahony, Donogh John Roger
  • Mu, Yongqi
  • Krogh-Jespersen, Erik

Abstract

11 are as described herein.

IPC Classes  ?

  • C07D 221/28 - Morphinans
  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 417/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 513/08 - Bridged systems
  • C07D 407/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a chain containing hetero atoms as chain links
  • A61P 25/04 - Centrally acting analgesics, e.g. opioids
  • C07D 407/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 471/08 - Bridged systems

91.

Conjugates of an IL-2 moiety and a polymer

      
Application Number 15835125
Grant Number 10960079
Status In Force
Filing Date 2017-12-07
First Publication Date 2018-03-29
Grant Date 2021-03-30
Owner Nektar Therapeutics (USA)
Inventor
  • Bossard, Mary J.
  • Ali, Cherie F.
  • Liu, Xiaofeng
  • Charych, Deborah H.
  • Wang, Yujun

Abstract

Conjugates of an interleukin-2 (“IL-2”) moiety and one or more nonpeptidic, water-soluble polymers are provided. Typically, the non-peptidic, water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided, among other things, are compositions comprising conjugates, methods of making conjugates, methods of administering compositions to an individual, nucleic acid sequences, expression systems, host cells, and methods for preparing IL-moieties.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 38/20 - Interleukins
  • C07K 14/55 - IL-2

92.

CONJUGATES OF A FACTOR VIII MOIETY HAVING AN OXIME-CONTAINING LINKAGE

      
Application Number US2017043221
Publication Number 2018/017923
Status In Force
Filing Date 2017-07-21
Publication Date 2018-01-25
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Bossard, Mary J.
  • Sheng, Dawei

Abstract

The present disclosure provides conjugates comprising a Factor VIII moiety covalently attached via an oxime-containing linkage to a water-soluble polymer, such as for example, a polyethylene glycol polymer. Methods for preparing and for administering such conjugates, are also provided, as are water-soluble polymer oxyamine reagents useful for preparing the subject conjugates, among other things.

IPC Classes  ?

  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

93.

N-methyl-N-(1-phenyl-2-(1-pyrrolidinyl)ethyl)-2-aminophenylacetamide derivatives agonists for the kappa opioid receptor

      
Application Number 15539061
Grant Number 10322107
Status In Force
Filing Date 2015-12-18
First Publication Date 2017-12-28
Grant Date 2019-06-18
Owner Nektar Therapeutics (USA)
Inventor
  • Duarte, Franco J.
  • Anand, Neel K.
  • Zhang, Wen
  • Sharma, Pankaj
  • Singh, Devendrapratap

Abstract

Compounds and pharmaceutically acceptable salts and solvates thereof are described. The compounds relate to and/or have application(s) in (among others) the fields of drug discovery, pharmacotherapy, physiology and organic chemistry.

IPC Classes  ?

  • A61K 31/4025 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having five-membered rings with one nitrogen as the only ring hetero atom, e.g. sulpiride, succinimide, tolmetin, buflomedil not condensed and containing further heterocyclic rings, e.g. cromakalim
  • C07D 213/71 - Sulfur atoms to which a second hetero atom is attached
  • C07D 231/18 - One oxygen or sulfur atom
  • C07D 333/34 - Sulfur atoms
  • C07D 239/60 - Three or more oxygen or sulfur atoms
  • C07D 261/10 - Heterocyclic compounds containing 1,2-oxazole or hydrogenated 1,2-oxazole rings not condensed with other rings having two or more double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
  • C07D 207/12 - Oxygen or sulfur atoms
  • C07D 207/14 - Nitrogen atoms not forming part of a nitro radical
  • C07D 295/13 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms attached to the same carbon chain, which is not interrupted by carbocyclic rings to an acyclic saturated chain
  • C07D 295/135 - Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms with substituted hydrocarbon radicals attached to ring nitrogen atoms substituted by singly or doubly bound nitrogen atoms with the ring nitrogen atoms and the substituent nitrogen atoms separated by carbocyclic rings or by carbon chains interrupted by carbocyclic rings
  • C07D 207/04 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having no double bonds between ring members or between ring members and non-ring members

94.

Composition comprising a polymeric reagent

      
Application Number 15681065
Grant Number 10130720
Status In Force
Filing Date 2017-08-18
First Publication Date 2017-12-07
Grant Date 2018-11-20
Owner Nektar Therapeutics (USA)
Inventor
  • Bentley, Michael D.
  • Culbertson, Sean M.
  • Mcmanus, Samuel P.

Abstract

The present invention provides conjugates having a degradable linkage and polymeric reagents useful in preparing such conjugates. The conjugates as well as the polymeric reagents used to form the conjugates include at least one of each the following: an aromatic moiety comprising an ionizable hydrogen atom, a spacer moiety, and a water-soluble polymer. Methods of making polymeric reagents and conjugates, as well as methods for administering conjugates and compositions, are also provided.

IPC Classes  ?

  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 61/02 - Macromolecular compounds containing only carbon atoms in the main chain of the macromolecule, e.g. polyxylylenes
  • C07C 235/68 - Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced
  • C07D 207/46 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with hetero atoms directly attached to the ring nitrogen atom
  • C07K 14/575 - Hormones
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • C08G 65/338 - Polymers modified by chemical after-treatment with inorganic and organic compounds
  • A61K 38/26 - Glucagons
  • A61K 38/28 - Insulins
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/334 - Polymers modified by chemical after-treatment with organic compounds containing sulfur
  • C08K 5/13 - PhenolsPhenolates
  • A61K 31/765 - Polymers containing oxygen

95.

Methods for preparing polymeric reagents and compositions of polymeric reagents

      
Application Number 15631845
Grant Number 10421838
Status In Force
Filing Date 2017-06-23
First Publication Date 2017-10-05
Grant Date 2019-09-24
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Mckannan, Jon
  • Mcmanus, Samuel P.

Abstract

Methods for preparing active carbonate esters of water-soluble polymers are provided. Also provided are other methods related to the active carbonate esters of water-soluble polymers, as well as corresponding compositions.

IPC Classes  ?

  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
  • C08G 65/329 - Polymers modified by chemical after-treatment with organic compounds
  • C08L 71/02 - Polyalkylene oxides
  • C07B 47/00 - Formation or introduction of functional groups not provided for in groups
  • C08G 65/48 - Polymers modified by chemical after-treatment
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol

96.

Opioid agonists and uses thereof

      
Application Number 15603942
Grant Number 10081602
Status In Force
Filing Date 2017-05-24
First Publication Date 2017-09-07
Grant Date 2018-09-25
Owner Nektar Therapeutics (USA)
Inventor
  • Duarte, Franco J.
  • Anand, Neel K.
  • Sharma, Pankaj
  • Singh, Devendrapratap

Abstract

Provided are compounds, including those of Formula I; and pharmaceutically acceptable salts and solvates thereof. The compounds described herein relate to and/or have application(s) in (among others) the fields of drug discovery, pharmacotherapy, physiology, organic chemistry and polymer chemistry.

IPC Classes  ?

  • C07D 221/26 - Benzomorphans
  • C07D 401/12 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 513/08 - Bridged systems

97.

Oligomer-foscarnet conjugates

      
Application Number 15586971
Grant Number 10231984
Status In Force
Filing Date 2017-05-04
First Publication Date 2017-08-17
Grant Date 2019-03-19
Owner Nektar Therapeutics (USA)
Inventor
  • Riley, Timothy A.
  • Cheng, Lin

Abstract

The invention relates to (among other things) oligomer-foscarnet conjugates and related compounds. A conjugate of the invention, when administered by any of a number of administration routes, exhibits advantages over previously administered un-conjugated foscarnet compounds.

IPC Classes  ?

  • C07F 9/40 - Esters thereof
  • A61K 31/662 - Phosphorus acids or esters thereof having P—C bonds, e.g. foscarnet, trichlorfon
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • C08G 65/335 - Polymers modified by chemical after-treatment with organic compounds containing phosphorus

98.

SEALED LIQUID RESERVOIR FOR A NEBULIZER

      
Application Number US2017013927
Publication Number 2017/127420
Status In Force
Filing Date 2017-01-18
Publication Date 2017-07-27
Owner NEKTAR THERAPEUTICS (USA)
Inventor
  • Narayan, Sharad
  • Challoner, Peter
  • Strehl, Michael-Martin
  • Daniel, Christian

Abstract

Methods, systems, and devices are described for allowing a decreased pressure within a liquid reservoir to develop. The liquid reservoir may be sealed to create the sealed reservoir. During the sealing process, a potential headspace within the liquid reservoir may be decreased while ambient pressure is maintained. Pressure may then be decreased by draining liquid from the liquid reservoir and air is prevented from entering the headspace of the liquid reservoir.

IPC Classes  ?

  • A61M 15/00 - Inhalators
  • A61M 16/00 - Devices for influencing the respiratory system of patients by gas treatment, e.g. ventilators Tracheal tubes
  • A61M 16/20 - Valves specially adapted to medical respiratory devices
  • A61M 11/00 - Sprayers or atomisers specially adapted for therapeutic purposes
  • A61M 39/20 - Closure caps or plugs for connectors or open ends of tubes
  • B05B 17/00 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass
  • B67D 7/02 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
  • B65D 51/16 - Closures not otherwise provided for with means for venting air or gas
  • B65D 59/06 - Caps
  • B62D 5/06 - Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle

99.

Conjugates of an anti-TNF-alpha antibody

      
Application Number 15470622
Grant Number 10232042
Status In Force
Filing Date 2017-03-27
First Publication Date 2017-07-13
Grant Date 2019-03-19
Owner Nektar Therapeutics (USA)
Inventor
  • Bossard, Mary J.
  • Stephenson-Phillips, Gayle

Abstract

Conjugates of an anti-TNF antibody and one or more nonpeptidic water-soluble polymers are provided. Typically, the nonpeptidic water-soluble polymer is poly(ethylene glycol) or a derivative thereof. Also provided, among other things, are compositions comprising conjugates, methods of making conjugates, and methods of administering compositions to a patient.

IPC Classes  ?

  • A61K 39/44 - Antibodies bound to carriers
  • C07K 16/24 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies against material from animals or humans against cytokines, lymphokines or interferons
  • A61K 39/395 - AntibodiesImmunoglobulinsImmune serum, e.g. antilymphocytic serum
  • A61K 47/60 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additivesTargeting or modifying agents chemically bound to the active ingredient the non-active ingredient being chemically bound to the active ingredient, e.g. polymer-drug conjugates the non-active ingredient being a modifying agent the modifying agent being an organic macromolecular compound, e.g. an oligomeric, polymeric or dendrimeric molecule obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyureas or polyurethanes the organic macromolecular compound being a polyoxyalkylene oligomer, polymer or dendrimer, e.g. PEG, PPG, PEO or polyglycerol
  • A61K 39/00 - Medicinal preparations containing antigens or antibodies

100.

Multi-arm polymeric alkanoate conjugates

      
Application Number 15296414
Grant Number 10039737
Status In Force
Filing Date 2016-10-18
First Publication Date 2017-07-06
Grant Date 2018-08-07
Owner Nektar Therapeutics (USA)
Inventor
  • Kozlowski, Antoni
  • Mcmanus, Samuel P.
  • Riggs-Sauthier, Jennifer
  • Shen, Xiaoming
  • Zhang, Wen

Abstract

Among other aspects, provided herein are multi-armed polymer conjugates comprising an alkanoate-linker, compositions comprising such conjugates, and related methods of making and administering the same. Methods of treatment employing such conjugates and related uses are also provided. The conjugates are prepared with high drug loading efficiencies.

IPC Classes  ?

  • A61K 31/337 - Heterocyclic compounds having oxygen as the only ring hetero atom, e.g. fungichromin having four-membered rings, e.g. taxol
  • A61K 38/00 - Medicinal preparations containing peptides
  • A61K 31/785 - Polymers containing nitrogen
  • C08G 79/08 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon a linkage containing boron
  • A61K 47/48 - Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives the non-active ingredient being chemically bound to the active ingredient, e.g. polymer drug conjugates
  • A61K 31/4745 - QuinolinesIsoquinolines ortho- or peri-condensed with heterocyclic ring systems condensed with ring systems having nitrogen as a ring hetero atom, e.g. phenanthrolines
  • C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof
  • C08G 65/333 - Polymers modified by chemical after-treatment with organic compounds containing nitrogen
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