The present invention relates to bacteriophage therapy. More particularly, the present invention relates to novel bacteriophages having a high specificity against Escherichia coli strains, their manufacture, components thereof, compositions comprising the same and the uses thereof in phage therapy.
Staphylococcus aureus strains, their manufacture, components thereof, compositions comprising the same and the uses thereof in phage therapy and as companion diagnostic.
The application relates to the use of loaded red blood cells (e.g. “RBCs”, “red cells” or “erythrocytes”) or red blood cell precursors to produce red cell extracellular vesicles (RCEVs) containing cargos, including cargos comprising biologically active ingredients. Notable red cell precursors include hematopoietic stem cells (HSCs), induced pluripotent stem cells (iPSCs), and reticulocytes. The cargo may comprise nucleic acids, proteins, small molecules, or components of a gene editing system, including CRISPR/Cas9. The RCEVs may be used to treat of diseases and disorders including autoimmune disorders, cancers, cardiovascular diseases, gastrointestinal diseases, genetic disorders, or inflammatory diseases. The RCEVs may also be used to carry antigens and or immune modulator, for use in eliciting immune or immune tolerance responses. Also provided are methods for producing cargo loaded RCEVs (CLRCEVs) by first loading cargo into red cells and then by vesiculating the cargo loaded red cells to yield the CLRCEVs.
The present invention relates to the therapeutic treatment of pancreatic cancer using eryaspase, which comprises red blood cells encapsulating asparaginase (ASNase), in combination with chemotherapeutic agents.
The present invention is related to arginine deiminase encapsulated into erythrocytes for use in therapy. It is in particular related to the use thereof in treating arginase-1 deficiency. Also, it relates to novel pharmaceutical compositions comprising arginine deiminase from M. arginini encapsulated into erythrocytes and the use thereof in treating diseases that may benefit from arginine depletion, such as arginine dependent cancers, in particular arginine-auxotrophic cancers, and arginase-1 deficiency.
The invention is related to a new method for treating liquid and solid cancers, in a mammal, including human, wherein methioninase is administered before asparaginase. The invention also encompasses the use of a dietary methionine deprivation, possibly combined with methioninase administration, in advance of asparaginase treatment. Methioninase and asparaginase may be used in particular under free form, pegylated form or encapsulated into erythrocytes.
The invention concerns a pharmaceutical composition, kit or fixed-dose combination comprising a methionine depletion agent (MDA), and an anti-cancer immune modulator (ACIM), for use in the treatment of a disease or condition in a subject or patient in need of treatment thereof. Synergic combinations are provided. Cancer may be for example acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), pancreatic cancer, gastric cancer, colorectal cancer, prostate cancer, ovarian cancer, brain cancer, head and neck cancer or breast cancer.
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 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
The application relates to the use of loaded red blood cells (e.g. "RBCs", "red cells" or "erythrocytes") or red blood cell precursors to produce red cell extracellular vesicles (RCEVs) containing cargos, including cargos comprising biologically active ingredients. Notable red cell precursors include hematopoietic stem cells (HSCs), induced pluripotent stem cells (iPSCs), and reticulocytes. The cargo may comprise nucleic acids, proteins, small molecules, or components of a gene editing system, including CRISPR/Cas9. The RCEVs may be used to treat of diseases and disorders including autoimmune disorders, cancers, cardiovascular diseases, gastrointestinal diseases, genetic disorders, or inflammatory diseases. The RCEVs may also be used to carry antigens and or immune modulator, for use in eliciting immune or immune tolerance responses. Also provided are methods for producing cargo loaded RCEVs (CLRCEVs) by first loading cargo into red cells and then by vesiculating the cargo loaded red cells to yield the CLRCEVs.
The invention relates to a pharmaceutical composition containing a PLP-dependent enzyme and optionally its cofactor, pyridoxal phosphate (PLP), and/or a phosphate or non-phosphate precursor of PLP, its use as a drug, its production method and a therapeutic treatment method related to it. The pharmaceutical composition comprises erythrocytes and a pharmaceutically acceptable vehicle, the erythrocytes encapsulating the PLP-dependent enzyme. The PLP-dependent enzyme may be methioninase, tyrosine phenol-lyase, tyrosine aminotransferase or cystathionine beta-synthase.
M. arginini encapsulated into erythrocytes and the use thereof in treating diseases that may benefit from arginine depletion, such as arginine dependent cancers, in particular arginine-auxotrophic cancers, and arginase-1 deficiency.
The invention concerns a pharmaceutical composition, kit or fixed-dose combination comprising a methionine depletion agent (MDA), and an anti-cancer immune modulator (ACIM), for use in the treatment of a disease or condition in a subject or patient in need of treatment thereof. Synergic combinations are provided. Cancer may be for example acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), pancreatic cancer, gastric cancer, colorectal cancer, prostate cancer, ovarian cancer, brain cancer, head and neck cancer or breast cancer.
Staphylococcus aureus strains, their manufacture, components thereof, compositions comprising the same and the uses thereof in phage therapy and as companion diagnostic.
M. argininiM. arginini encapsulated into erythrocytes and the use thereof in treating diseases that may benefit from arginine depletion, such as arginine dependent cancers, in particular arginine-auxotrophic cancers, and arginase-1 deficiency.
The invention is related to a new method for treating liquid and solid cancers, in a mammal, including human, wherein methioninase is administered before asparaginase. The invention also encompasses the use of a dietary methionine deprivation, possibly combined with methioninase administration, in advance of asparaginase treatment. Methioninase and asparaginase may be used in particular under free form, pegylated form or encapsulated into erythrocytes.
A61K 39/00 - Medicinal preparations containing antigens or antibodies
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
A61K 45/06 - Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
C07K 16/00 - Immunoglobulins, e.g. monoclonal or polyclonal antibodies
C12N 7/00 - Viruses, e.g. bacteriophagesCompositions thereofPreparation or purification thereof
C12Q 1/18 - Testing for antimicrobial activity of a material
C07K 14/005 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from viruses
The invention relates to a pharmaceutical kit containing a) an injectable suspension of erythrocytes encapsulating a pyridoxal phosphate (PLP)-dependent enzyme and b) a non-phosphate PLP precursor. The invention further relates to methods of producing component(s) of the kit and to therapeutic treatment methods related to the kit. The PLP-dependent enzyme may be a methioninase, a tyrosine phenol-lyase, a tyrosine aminotransferase or a cystathionine beta-synthase.
The invention relates to a composition which induces, in a host, a cytotoxic cell response directed against cells expressing an antigen, in particular tumour cells, and which comprises red blood cells containing said antigen. These red blood cells may be in the form of an immune complex with an immunoglobulin, in particular IgG, which recognizes an epitope at the surface of the red blood cells, and/or be heat-treated or chemically treated so as to promote phagocytosis of said red blood cells by dendritic cells. As a variant, the red blood cells may be xenogenic red blood cells. The invention also relates to a therapeutic especially anti-tumour vaccine containing such a composition.
A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
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
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
The invention is related to a new method for treating liquid and solid cancers, in a mammal, including human, wherein methioninase is administered before asparaginase. The invention also encompasses the use of a dietary methionine deprivation, possibly combined with methioninase administration, in advance of asparaginase treatment. Methioninase and asparaginase may be used in particular under free form, pegylated form or encapsulated into erythrocytes.
G01N 33/569 - ImmunoassayBiospecific binding assayMaterials therefor for microorganisms, e.g. protozoa, bacteria, viruses
C07K 14/005 - Peptides having more than 20 amino acidsGastrinsSomatostatinsMelanotropinsDerivatives thereof from viruses
A01N 63/00 - Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
C12Q 1/18 - Testing for antimicrobial activity of a material
25.
Method of treatment using a pharmaceutical composition comprising erythrocytes encapsulating a PLP-dependent enzyme and its cofactor
The invention relates to a pharmaceutical composition containing a PLP-dependent enzyme and optionally its cofactor, pyridoxal phosphate (PLP), and/or a phosphate or non-phosphate precursor of PLP, its use as a drug, its production method and a therapeutic treatment method related to it. The pharmaceutical composition comprises erythrocytes and a pharmaceutically acceptable vehicle, the erythrocytes encapsulating the PLP-dependent enzyme. The PLP-dependent enzyme may be methioninase, tyrosine phenol-lyase, tyrosine aminotransferase or cystathionine beta-synthase.
The invention relates to a composition which induces, in a host, a cytotoxic cell response directed against cells expressing an antigen, in particular tumor cells, and which comprises red blood cells containing said antigen. These red blood cells may be in the form of an immune complex with an immunoglobulin, in particular IgG, which recognizes an epitope at the surface of the red blood cells, and/or be heat-treated or chemically treated so as to promote phagocytosis of said red blood cells by dendritic cells. As a variant, the red blood cells may be xenogenic red blood cells. The invention also relates to a therapeutic especially anti-tumor vaccine containing such a composition.
A61K 47/22 - Heterocyclic compounds, e.g. ascorbic acid, tocopherol or pyrrolidones
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
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
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Pharmaceutical and veterinary products; chemical
preparations for medical or pharmaceutical use. Machines for the development and/or production of products
for therapeutic use. Scientific apparatus and instruments for the development
and/or production of products for therapeutic use. Medical apparatus and instruments for the development and/or
production of products for therapeutic use. Evaluations, assessments and research in the fields of
science and technology provided by engineers; research and
development of new products for others; scientific research
for medical purposes. Medical services; hospital services; health services.
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Pharmaceutical preparations for the prevention and treatment of cancer, blood diseases and disorders, genetic rare diseases and immunological condition, namely, autoimmune diseases and immunologic deficiency syndromes.
(2) Machines for the development and production of therapeutical products, namely, machines for encapsulating therapeutics compounds in red blood cells.
(3) Medical apparatus and instruments for use in the development and production of therapeutical products designed for encapsulating therapeutic drug substances inside red blood cells and used for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic diseases, autoimmune diseases (1) Evaluations, estimates and research in the scientific and technological fields provided by engineers, namely, materials testing and evaluation, pharmaceutical product evaluation, namely, evaluation of pharmaceutical products used for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological conditions; Scientific research and technology research in the field of scientific equipment used for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological conditions; Research and development of new products for a third party; Medical scientific research.
A01N 63/00 - Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
A method for obtaining a stabilized suspension of red blood cells encapsulating an active ingredient, from resealed RBCs incorporating the active ingredient, the method comprising the incubation of the resealed RBCs in an incubation solution at an osmolality of no less than 280 m Osmol/kg, for a time of 30 minutes or more, the incubation solution being a solution that does not contain an agent which is denaturating for the RBC membrane, the liquid medium is then removed from the incubated suspension and the RBCs obtained are placed in suspension in a solution allowing the injection of the suspension in a patient. The suspensions obtained are particularly characterized by an extracellular haemoglobin level maintained at 0.5 or lower, in particular 0.2 g/dl or lower and/or a hemolysis rate maintained at 2 or less, in particular 1% or less, at 72 h after placing in suspension in a preservation solution and at a temperature of between 2 and 8° C.
05 - Pharmaceutical, veterinary and sanitary products
07 - Machines and machine tools
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Pharmaceutical preparations for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological condition [ ; Diagnostic preparations for medical purposes, veterinary preparations for treatment of cancer and blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological condition in horses, cattle, dogs and cats; chemical preparations for medical or pharmaceutical use, namely, for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological condition ] Machines for the development and/or production of pharmaceutical products or diagnostic products for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological condition [ Scientific apparatus and instruments for the development and/or production of pharmaceutical products or diagnostic products for the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological condition ] [ Medical apparatus and instruments for use in the prevention and treatment of cancer, blood diseases and disorders, metabolic disorders, genetic rare diseases and immunological conditions ] Evaluations, estimates and research in the scientific and technological fields provided by engineers, namely, materials testing and evaluation, pharmaceutical product evaluation, scientific research, and technology research in the field of scientific equipment. Research and development of new products [ Medical services ]
32.
PHARMACEUTICAL COMPOSITION COMPRISING ERYTHROCYTES ENCAPSULATING A PLP-DEPENDENT ENZYME AND ITS COFACTOR
The invention relates to a pharmaceutical composition containing a PLP-dependent enzyme and optionally its cofactor, pyridoxal phosphate (PLP), and/or a phosphate or non-phosphate precursor of PLP, its use as a drug, its production method and a therapeutic treatment method related to it. The pharmaceutical composition comprises erythrocytes and a pharmaceutically acceptable vehicle, the erythrocytes encapsulating the PLP-dependent enzyme. The PLP-dependent enzyme may be methioninase, tyrosine phenol-lyase, tyrosine aminotransferase or cystathionine beta-synthase.
Method of in vitro measurement of the presence of factors that are able to neutralize asparaginase activity in a sample of blood, plasma, serum or derived medium that may contain asparaginase neutralizing factors, obtained from a patient, comprising mixing of said sample with asparaginase, incubation of said mixture, then measurement of the residual asparaginase activity in the mixture and determination or quantification of the presence of said neutralizing factors. Method for predicting the efficacy of a treatment with asparaginase.
C12Q 1/34 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase
A61K 38/50 - Hydrolases (3) acting on carbon-nitrogen bonds, other than peptide bonds (3.5), e.g. asparaginase
34.
COMPOSITION OF ERYTHROCYTES ENCAPSULATING PHENYLALANINE HYDROXYLASE AND THERAPEUTIC USE THEREOF
The present invention relates to Enzyme Replacement Therapy (ERT) based on phenylalanine hydroxylase (PAH) and compositions intended for this use. It concerns an erythrocyte encapsulating PAH, especially in suspension in a pharmaceutically acceptable carrier or vehicle, a pharmaceutical composition comprising erythrocytes encapsulating PAH in a pharmaceutically acceptable carrier or vehicle, and such a pharmaceutical composition for use in the treatment or prevention of phenylketonuria (PKU) and/or other diseases involving a too high level of phenylalanine; the treatment or prevention may be in combination with a Phe-restricted diet. The invention particularly relates to classic PKU, variant PKU and non-PKU hyperphenylalaninemia.
A method for obtaining a stabilised suspension of red blood cells encapsulating an active ingredient, from resealed RBCs incorporating the active ingredient, the method comprising the incubation of the resealed RBCs in an incubation solution at an osmolality of no less than 280 m Osmol/kg, for a time of 30 minutes or more, the incubation solution being a solution that does not contain an agent which is denaturating for the RBC membrane, the liquid medium is then removed from the incubated suspension and the RBCs obtained are placed in suspension in a solution allowing the injection of the suspension in a patient. The suspensions obtained are particularly characterized by an extracellular haemoglobin level maintained at 0.5 or lower, in particular 0.2 g/dl or lower and/or a haemolysis rate maintained at 2 or less, in particular 1 % or less, at 72 h after placing in suspension in a preservation solution and at a temperature of between 2 and 8 °C.
The present invention relates to the therapeutic treatment of Acute Myeloid Leukemia (AML). It concerns in particular a novel composition for the treatment of this cancer and an associated therapeutic treatment method. The invention concerns a suspension of erythrocytes encapsulating asparaginase as a medicament for treating Acute Myeloid Leukemia (AML). The invention also concerns a method for treating Acute Myeloid Leukemia (AML) comprising administering an efficient amount of a suspension of erythrocytes encapsulating asparaginase.
Method of in vitro measurement of the presence of factors that are able to neutralize asparaginase activity in a sample of blood, plasma, serum or derived medium that may contain asparaginase neutralizing factors, obtained from a patient, comprising mixing of said sample with asparaginase, incubation of said mixture, then measurement of the residual asparaginase activity in the mixture and determination or quantification of the presence of said neutralizing factors. Method for predicting the efficacy of a treatment with asparaginase.
C12Q 1/44 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase involving esterase
C12Q 1/00 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions
C12Q 1/34 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase
The invention relates to a composition which induces, in a host, a cytotoxic cell response directed against cells expressing an antigen, in particular tumor cells, and which comprises red blood cells containing said antigen. These red blood cells may be in the form of an immune complex with an immunoglobulin, in particular IgG, which recognizes an epitope at the surface of the red blood cells, and/or be heat-treated or chemically treated so as to promote phagocytosis of said red blood cells by dendritic cells. As a variant, the red blood cells may be xenogenic red blood cells. The invention also relates to a therapeutic especially anti-tumor vaccine containing such a composition.
The invention relates to a composition which induces, in a host, an immune tolerance to a peptidic or proteic active principle, said composition comprising red blood cells containing an active principle selected from the group consisting of a therapeutic peptide, polypeptide or protein, a peptidic or proteic autoantigen, peptide, polypeptide or protein inducing an allergic reaction and a transplantation peptidic or proteic antigen.
The invention relates to a suspension of red corpuscles encapsulating asparaginase as a medicament for treating pancreatic cancer. It in particular concerns a therapeutic composition or medicament intended for the treatment of pancreatic cancer, containing an effective quantity of such a suspension of red corpuscles.
The invention relates to a method for assaying inositol hexaphosphate (IHP) in a product that can be injected in humans or animals or in a fraction of this product, in which a metal compound is added to a sample or a fraction of this product and the complexation of said metal compound with the IHP present is subsequently detected, by virtue of which the IHP present in the product or fraction thereof is assayed. The invention makes it possible to assay the IHP in a suspension or a solution, and in particular in the various compartments of a suspension of red blood cells.
G01N 33/50 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing
G01N 33/80 - Chemical analysis of biological material, e.g. blood, urineTesting involving biospecific ligand binding methodsImmunological testing involving blood groups or blood types
42.
TEST FOR PREDICTING NEUTRALIZATION OF ASPARAGINASE ACTIVITY
Method of in vitro measurement of the presence of factors that are able to neutralize asparaginase activity in a sample of blood, plasma, serum or derived medium that may contain asparaginase neutralizing factors, obtained from a patient, comprising mixing of said sample with asparaginase, incubation of said mixture, then measurement of the residual asparaginase activity in the mixture and determination or quantification of the presence of said neutralizing factors. Method for predicting the efficacy of a treatment with asparaginase.
C12Q 1/37 - Measuring or testing processes involving enzymes, nucleic acids or microorganismsCompositions thereforProcesses of preparing such compositions involving hydrolase involving peptidase or proteinase
43.
FORMULATION AND METHOD FOR THE PREVENTION AND TREATMENT OF BONE METASTASES OR OTHER BONE DISEASES
The invention relates to a suspension of erythrocytes encapsulating a bisphosphonate, for use as a medicament for the prevention and treatment of bone metastases and other bone marrow diseases. It also relates to a suspension of erythrocytes encapsulating a bisphosphonate, in which these erythrocytes have undergone a chemical treatment with an agent such as BS3 so as to promote targeting of the bone marrow.
Summary Formulation and method for the prevention and treatment of skeletal manifestation of Gaucher's disease The invention relates to the prevention and treatment of skeletal manifestation of Gaucher's disease. It relates to a formulation for introducing glucocerebrosidase into the lysosomal compartment of macrophages and/or Gaucher cells in the bone marrow, the formulation comprising glucocerebrosidase encapsulated in erythrocytes. Said erythrocytes may have been subjected to a chemical treatment with an agent so as to promote the targeting of macrophages and/or Gaucher cells in the bone marrow. The treatment may be carried out with a bis(sulphosuccinimidyl) suberate (BS3) solution. The invention also describes drugs and methods for prevention and treatment. No figures.
The invention relates to a suspension of red corpuscles encapsulating asparaginase as a medicament for treating pancreatic cancer. It in particular concerns a therapeutic composition or medicament intended for the treatment of pancreatic cancer, containing an effective quantity of such a suspension of red corpuscles.
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Pharmaceutical preparations for the prevention and the treatment of diseases in the field of hematology and oncology [ and for the prevention and the treatment of metabolic diseases; Chemical preparations for the prevention and the treatment of diseases in the field of hematology and oncology and for the prevention and the treatment of metabolic diseases; Chemical preparations for pharmaceutical use, namely, erythrocytes entrapping preparations in the nature of biologic or chemical drugs for medical treatment or diagnosis of metabolic diseases ] [ Scientific research for medical purposes ] [ Medical and health services, namely, health care services ]
The invention relates to a composition which induces, in a host, a cytotoxic cell response directed against cells expressing an antigen, in particular tumour cells, and which comprises red blood cells containing said antigen. These red blood cells may be in the form of an immune complex with an immunoglobulin, in particular IgG, which recognizes an epitope at the surface of the red blood cells, and/or be heat-treated or chemically treated so as to promote phagocytosis of said red blood cells by dendritic cells. As a variant, the red blood cells may be xenogenic red blood cells. The invention also relates to a therapeutic especially anti-tumour vaccine containing such a composition.
Use of erythrocytes containing arginine deirainase for the preparation of a medicinal product for lowering the plasma concentration of arginine in vivo. The use relates in particular to the treatment of arginine-dependent tumors, such as hepatocarcinoma and malignant melanoma, or inhibition of the synthesis of nitric oxide, and the prevention and/or treatment of septic shock.
Lysis/resealing process for preparing erythrocytes which contain an active ingredient (e.g. aspariginase or inositol hexaphosphate), the process comprising the following steps: (1) placing a globular concentrate in suspension in an isotonic solution having a haematocrit level which is equal to or greater than 65%, with refrigeration at from +1 to +8° C., (2) measuring the osmotic fragility based on a sample of erythrocytes from that same globular concentrate, preferably on a sample of the suspension obtained in step (1), (3) lysis and internalization procedure of the active ingredient, inside the same chamber, at a temperature which is constantly maintained at from +1 to +8° C., comprising allowing the erythrocyte suspension having a haematocrit level which is equal to or greater than 65% and a hypotonic lysis solution which is refrigerated at from +1 to +8° C. to circulate in a dialysis cartridge; the lysis parameters being adjusted in accordance with the osmotic fragility previously measured; and (4) resealing procedure carried out in a second chamber at a temperature of from +30 to +40° C. by means of a hypertonic solution.
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Pharmaceutical and veterinary preparations; chemical
preparations for medical or pharmaceutical use. Evaluations, assessments and research in the fields of
science and technology provided by engineers, research and
development of new products for third parties. Medical services, hospital services.
05 - Pharmaceutical, veterinary and sanitary products
42 - Scientific, technological and industrial services, research and design
44 - Medical, veterinary, hygienic and cosmetic services; agriculture, horticulture and forestry services
Goods & Services
Pharmaceutical and veterinary preparations; chemical
preparations for medical or pharmaceutical use. Scientific research for medical purposes. Medical and health services.
