Claims for Patent: 4,483,807

Summary for Patent: 4,483,807

Title:	Process for producing a slow release composite
Abstract:	A process is herein disclosed for producing a slow release composite comprising grinding and mixing mechanically in a frozen state one or more polypeptides, one or more proteins and one or more physiologically active substances shaping the blend into a desired form and compressing at a pressure of from 100 to 20,000 kg/cm.sup.2 to thereby produce a slow release composite having the physiologically active substances encapsulated therein.
Inventor(s):	Asano; Masaharu (Gunma, JP), Yoshida; Masaru (Gunma, JP), Kaetsu; Isao (Gunma, JP)
Assignee:	Japan Atomic Energy Research Institute (Tokyo, JP)
Application Number:	06/340,989
Patent Claims:	1. A process for producing a slow release composite having a physiologicaly active substance encapsulated therein, wherein a system comprising one or more polypeptides selected from the group consisting of poly-alanine, poly-glycine, poly-valine, poly-leucine, polyisoleucine, poly-serine, poly-o-benzyl-serine, poly-threonine, poly-o-benzyl-threonine, poly-cysteine, poly-s-benzyl-cysteine, poly-cystine, poly-methionine, poly-proline, poly-oxyproline, poly-aspartic acid, poly-.beta.-benzyl-aspartic acid, poly-glutamic acid, poly-.gamma.-benzyl-glutamic acid, poly-.gamma.-methyl-glutamic acid, poly-histidine, poly-lysine, poly-oxylysine, poly-ornithine, poly-arginine, poly-nitroalginine, poly-phenylalanine, poly-tyrosine, poly-o-benzyl-tyrosine, and polytryptophan, one or more proteins selected from the group consisting of starch, beta-globulin, gamma-globulin, albumen albumin, milk albumin, bovine serum albumin, human serum albumin, other serum albumins, leucosin, hemoglobin, globin, alpha-lipoprotein, beta-lipoprotein, fibrinogen, ovalbumin, conalbumin euglobulin, pseudoglobulin, glutenin, gliadin, insulin, glutathione, pectin, albumen, prolamine, glutelin, histone, protamine, metaprotein, peptone, myoglobin, ferritin, bacteriorhodopsin, rubredoxin, chymotrypsin, ribonuclease, papain, thermolysin, thioredoxin, flavodoxin, hexokinase, phosphorylase, carboxypeptidase A, albumen lysozyme, cytochrome, thrombin, elastase, pepsin, elastin, and protamine, and one or more physiologically active substances is ground into particles and mixed mechanicaly in a frozen state, the blend is shaped into a suitable form, and the shaped article is compressed into a suitable form at a pressure of from 100 to 20,000 kg/cm.sup.2. 2. A process for producing a slow release composite having physiologically active substance encapsulated therein, wherein a system comprising one or more polypeptides selected from the group consisting of poly-alanine, poly-glycine, poly-valine, poly-leucine, polyisoleucine, poly-serine, poly-o-benzyl-serine, poly-threonine, poly-o-benzyl-threonine, poly-cysteine, poly-s-benzyl-cysteine, poly-cystine, poly-methionine, poly-proline, poly-oxyproline, poly-aspartic acid, poly-.beta.-benzyl-aspartic acid, poly-glutamic acid, poly-.gamma.-benzyl-glutamic acid, poly-.gamma.-methyl-glutamic acid, poly-histidine, poly-lysine, poly-oxylysine, poly-ornithine, poly-arginine, poly-nitroalginine, poly-phenylalanine, poly-tyrosine, poly-o-benzyl-tyrosine, and polytryptophan, one or more proteins selected from the group consisting of starch, beta-globulin, gamma-globulin, albumen albumin, milk albumin, bovine serum albumin, human serum albumin, other serum albumins, leucosin, hemoglobin, globin, alpha-lipoprotein, beta-lipoprotein, fibrinogen, ovalbumin, conalbumin euglobulin, pseudoglobulin, glutenin, gliadin, insulin, glutathione, pectin, albumen, prolamine, glutelin, histone, protamine, metaprotein, peptone, myoglobin, ferritin, bacteriorhodopsin, rubredoxin, chymotrypsin, ribonuclease, papain, thermolysin, thioredoxin, flavodoxin, hexokinase, phosphorylase, carboxypeptidase A, albumen lysozyme, cytochrome, thrombin, elastase, pepsin, elastin, and protamine, and one or more physiologically active substances is ground into particles and mixed mechanically in a frozen state, the blend is shaped into a suitable the shaped article is compressed into a suitable form at a pressure of from 100 to 20,000 kg/cm.sup.2, said shaped article being irradiated with light or ionizing radiation as it is compressed or after it has been compressed at a pressure of from 100 to 20,000 kg/cm.sup.2. 3. A process for producing a slow release composite having physiologically active substance encpsulated therein, wherein a system comprising one or more polypeptides selected from the group consisting of poly-aniline, poly-glycine, poly-valine, poly-leucine, polyisoleucine, poly-serine, poly-o-benzyl-serine, poly-threonine, poly-o-benzyl-threonine, poly-cysteine, poly-s-benzyl-cysteine, poly-cystine, poly-methionine, poly-proline, poly-oxyproline, poly-aspartic acid, poly-.beta.-benzyl-aspartic acid, poly-glutamic acid, poly-.gamma.-benzyl-glutamic acid, poly-.gamma.-methyl-glutamic acid, poly-histidine, poly-lysine, poly-oxylysine, poly-ornithine, poly-arginine, poly-nitroalginine, poly-phenylalanine, poly-tyrosine, poly-o-benzyl-tyrosine, and polytryptophan, one or more proteins selected from the group consisting of starch, beta-globulin, gamma-globulin, albumen albumin, milk albumin, bovine serum albumin, human serum albumin, other serum albumins, leucosin, hemoglobin, globin, alpha-lipoprotein, beta-lipoprotein, fibrinogen, ovalbumin, conalbumin euglobulin, pseudoglobulin, glutenin, gliadin, insulin, glutathione, pectin, albumen, prolamine, glutelin, histone, protamine, metaprotein, peptone, myoglobin, ferritin, bacteriorhodopsin, rubredoxin, chymotrypsin, ribonuclease, papain, thermolysin, thioredoxin, flavodoxin, hexokinase, phosphorylase, carboxypeptidase A, albumen lysozyme, cytochrome, thrombin, elastase, pepsin, elastin, and protamine. one or more physiologically active substances, and a suitable mixture of water and an organic solvent is shaped into a suitable form, and the shaped article is heated at a temperature between room temperature and 100.degree. C. 4. A process for producing a slow release composite having a physiologically active substance encapsulated therein, wherein a system comprising one or more polypeptides selected from the group consisting of poly-alanine, poly-glycine, poly-valine, poly-leucine, polyisoleucine, poly-serine, poly-o-benzyl-serine, poly-threonine, poly-o-benzyl-threonine, poly-cysteine, poly-s-benzyl-cysteine, poly-cystine, poly-methionine, poly-proline, poly-oxyproline, poly-aspartic acid, poly-.beta.-benzyl-aspartic acid, poly-glutamic acid, poly-.gamma.-benzyl-glutamic acid, poly-.gamma.-methyl-glutamic acid, poly-histidine, poly-lysine, poly-oxylysine, poly-ornithine, poly-arginine, poly-nitroalginine, poly-phenylalanine, poly-tyrosine, poly-o-benzyl-tyrosine, and polytryptophan, one or more proteins selected from the group consisting of starch, beta-globulin, gamma-globulin, albumen albumin, milk albumin, bovine serum albumin, human serum albumin, other serum albumins, leucosin, hemoglobin, globin, alpha-lipoprotein, beta-lipoprotein, fibrinogen, ovalbumin, conalbumin euglobulin, pseudoglobulin, glutenin, gliadin, insulin, glutathione, pectin, albumen, prolamine, glutelin, histone, protamine, metaprotein, peptone, myoglobin, ferritin, bacteriorhodopsin, rubredoxin, chymotrypsin, ribonuclease, papain, thermolysin, thioredoxin, flavodoxin, hexokinase, phosphorylase, carboxypeptidase A, albumen lysozyme, cytochrome, thrombin, elastase, pepsin, elastin, and protamine, one or more physiologically active substances, and a suitable mixture of water and an organic solvent is shaped into a suitable form, and the shaped article is heated at a temperature between room temperature and 100.degree. C., and the heated product is further irradiated with light or ionizing radiation.

Details for Patent 4,483,807

Applicant	Tradename	Biologic Ingredient	Dosage Form	BLA	Approval Date	Patent No.	Expiredate
Grifols Therapeutics Llc	ALBUKED, PLASBUMIN-20, PLASBUMIN-25, PLASBUMIN-5	albumin (human)	For Injection	101138	10/21/1942		2001-11-20
Baxalta Us Inc.	BUMINATE, FLEXBUMIN	albumin (human)	Injection	101452	03/03/1954		2001-11-20
Csl Behring Ag	ALBURX	albumin (human)	Injection	102366	07/23/1976		2001-11-20
Grifols Biologicals Llc	ALBUTEIN	albumin (human)	Injection	102478	08/15/1978		2001-11-20