Claims for Patent: 5,543,316

Summary for Patent: 5,543,316

Title:	Injectable culture medium for maintaining viability of myoblast cells
Abstract:	An injectable grade medium for maintaining cells comprising: (a) a sugar; (b) a serum albumin; (c) a calcium salt; (d) a phosphate salt; (e) a source of iron; (f) at least one salt of a Group I element; (g) at least one salt of a Group II element; (h) at least one amino acid; and (i) at least one vitamin. Components (a) through (i) are present in the medium in amounts in order to provide an osmolality of the medium of from about 320 mOsm/kg to about 550 mOsm/kg. Such an injectable grade medium has an increased osmolality as compared with conventional media, and thus such medium may be employed in order to maintain cells over extended periods of time and for injecting such cells into a desired transplantation site of a patient, whereby such cells are transplanted into the patient, and are capable of functioning in the patient.
Inventor(s):	Zawadzka; Agatha (Charlestown, MA), Tsang; Wen-Ghih (Lexington, MA), Brown; Robert H. (Needham, MA)
Assignee:	Diacrin, Inc. (Charlestown, MA) The General Hospital Corporation (Boston, MA)
Application Number:	08/230,334
Patent Claims:	1. An injectable composition comprising: (i) myoblasts and (ii) an injectable grade medium for maintaining said myoblasts, said injectable grade medium comprising: (a) a sugar; (b) a serum albumin; (c) a phosphate salt; (d) iron; (e) at least one salt of a Group I element; (f) at least one salt of a Group II element; (g) at least one amino acid; and (h) at least one vitamin, wherein components (a) through (h) are present in said medium in amounts which provide an osmolality of said medium of from about 320 mOsm/kg to about 550 mOsm/kg, said composition being essentially free of growth factors. 2. The composition of claim 1 wherein said at least one vitamin is present in said medium in a total concentration of from about 0.02 g/l to about 0.3 g/l. 3. The composition of claim 1 wherein said sugar is dextrose. 4. The composition of claim 3 wherein said dextrose is present in said medium in an amount of up to about 10 g/l. 5. The composition of claim 4 wherein said dextrose is present in said medium in an amount of from about 2.0 g/l to about 8.0 g/l. 6. The composition of claim 5 wherein said dextrose is present in said medium in an amount of about 4.5 g/l. 7. The composition of claim 1 wherein said serum albumin is human serum albumin. 8. The composition of claim 7 wherein said human serum albumin is present in said medium in an amount of from about 1 g/l to about 10 g/l. 9. The composition of claim 8 wherein said human serum albumin is present in said medium in an amount of about 5 g/l. 10. The composition of claim 1 wherein said phosphate salt is present in said medium in an amount of from about 5 mg phosphorus/l to about 100 mg phosphorus/l. 11. The composition of claim 10 wherein said phosphate salt is present in said medium in an amount of from about 15 mg phosphorus/l to about 25 mg phosphorus/l. 12. The composition of claim 1 wherein said phosphate salt is sodium phosphate. 13. The composition of claim 1 wherein said at least one salt of a Group I element is selected from the group consisting of sodium bicarbonate and potassium chloride. 14. The composition of claim 13 wherein sodium bicarbonate and potassium chloride are present in said medium. 15. The composition of claim 14 wherein said sodium bicarbonate is present in said medium in an amount up to about 10 g/l. 16. The composition of claim 15 wherein said sodium bicarbonate is present in said medium in an amount of from about 1 g/l to about 10 g/l. 17. The composition of claim 16 wherein said sodium bicarbonate is present in said medium in an amount of about 3.7 g/l. 18. The composition of claim 14 wherein said potassium chloride is present in said medium in an amount up to about 1 g/l. 19. The composition of claim 18 wherein said potassium chloride is present in said medium in an amount of from about 200 mg/l to about 600 mg/l. 20. The composition of claim 19 wherein said potassium chloride is present in said medium in an amount of about 400 mg/l. 21. The composition of claim 1 wherein said at least one salt of a Group II element includes both calcium chloride and magnesium sulfate. 22. The composition of claim 21 wherein said calcium chloride is present in said medium in an amount of from about 50 mg/l to about 800 mg/l. 23. The composition of claim 22 wherein said calcium chloride is present in said medium in an amount of about 200 mg/l. 24. The composition of claim 21 wherein said magnesium sulfate is present in said medium in an amount of up to about 0.5 g/l. 25. The composition of claim 24 wherein said magnesium sulfate is present in said medium in an amount of about 0.19 g/l. 26. The composition of claim 1 wherein said iron is present in said medium to provide a concentration of iron in said medium of up to about 100 .mu.g/l. 27. The composition of claim 26 wherein said iron is present in said medium to provide a concentration of iron in said medium of from about 5 .mu.mg/l to about 20 .mu.g/l. 28. The composition of claim 27 wherein said iron is present in said medium to provide a concentration of iron in said medium of about 14 .mu.g/l. 29. The composition of claim 1 wherein said at least one vitamin is one or more vitamins selected from the group consisting of ascorbic acid; retinol; ergocalciferol; thiamine; riboflavin; pyridoxine; niacinamide; d-pantothenyl alcohol; dl-alpha tocopheryl acetate; biotin; folic acid; and cyanocobalamin. 30. The composition of claim 29 wherein said vitamins are present in said medium at the following concentrations: 31. The composition of claim 29 wherein said vitamins are included in said medium in two groups, Group I and Group II, wherein Group I includes the following vitamins present in said medium in the following proportions, with thiamine HCl corresponding to 1.00: and Group II includes the following vitamins present in said medium in the following proportions, with folic acid corresponding to 1.00: 32. The composition of claim 1 wherein said at least one amino acid is one or more amino acids selected from the group consisting of isoleucine; leucine; lysine;lysine acetate; methionine; phenylalanine; threonine; tryptophan; valine; alanine; arginine; histidine; proline; serine; glycine; and cysteine. 33. The composition of claim 32 wherein said amino acids are present in said medium at the following concentrations: 34. The composition of claim 32 wherein said amino acids are present in said medium in the following proportions, with tryptophan corresponding to 1.00: 35. The composition of claim 1 wherein said medium has an osmolality of from about 325 mOsm/kg to about 375 mOsm/kg. 36. The composition of claim 25 wherein said medium has an osmolality of from about 350 mOsm/kg to about 360 mOsm/kg. 37. An injectable composition comprising: (i) myoblasts and (ii) an injectable grade medium for maintaining said myoblasts, said injectable grade medium including the following components in the following amounts based upon 1 liter of said medium: (a) dextrose in an amount of 4.5 g/liter; (b) human serum albumin in an amount of 5 g/l; (c) sodium bicarbonate in an amount of 3.7 g/l; (d) potassium chloride in an amount of 400 mg/l; (e) calcium chloride in an amount of 200 mg/l; (f) magnesium sulfate in an amount of 0.195 g/l; (g) a mixture of monobasic and dibasic sodium phosphate which provides 0.0209 g phosphorus/l; (h) a mixture of iron and dextran which provides 0.000014 g iron/l; (i) 12.5 ml of an 8.5 % free amino acid solution, said solution including the following amino acids present in the following amounts: isoleucine--5.9 g/l leucine--7.7 g/l lysine--6.2 g/l lysine acetate--8.7 g/l methionine--4.5 g/l phenylalanine--4.8 g/l threonine--3.4 g/l tryptophan--1.3 g/l valine--5.6 g/l alanine--6.0 g/l arginine--8.1 g/l histidine--2.4 g/l proline--9.5 g/l serine--5.0 g/l glycine--11.9 g/l cysteine--0.14 g/l cysteine (HCl.times.H.sub.2 O)--0.2 g/l phosphoric acid--1.15 g/l sodium bisulfite--1 g/l (j) 6.6 ml of a first vitamin solution including the following vitamins in the following amounts: ascorbic acid--20 g/l; retinol--0.2 g/l; ergocalciferol--0.001 g/l; thiamine HCl--0.6 g/l; riboflavin as riboflavin-5-phosphate sodium--0.72 g/l; pyridoxine HCl--0.8 g/l; niacinamide--8 g/l; d-pantothenyl alcohol--3 g/l; di-alpha tocopheryl acetate--2 g/l; and (k) 50 ml of a second vitamin solution including the following vitamins in the following amounts: biotin--0.012 g/l, folic acid--0.08 g/l, cyanocobalamin--0.001 g/l, said medium having an osmolality of 358 mOsm/kg, and said medium being essentially free of growth factors. 38. An injectable composition comprising: (i) myoblasts and (ii) an injectable grade medium for maintaining said myoblasts, said injectable grade medium comprising: (a) dextrose; (b) a serum albumin; (c) a phosphate salt; (d) iron; (e) at least one salt of a Group I element; (f) at least one salt of a Group II element; (g) at least one amino acid selected from the group consisting of isoleucine; leucine; lysine; lysine acetate; methionine; phenylalanine; threonine; tryptophan; valine; alanine; arginine; histidine; proline; serine; glycine; and cysteine; and (h) at least one vitamin selected the group consisting of ascorbic acid; retinol; ergocalciferol; thiamine; riboflavin; pyridoxine; niacinamide; d-pantothenyl alcohol; dl-alpha tocopheryl acetate; biotin; folic acid; and cyanocobalamin.

Details for Patent 5,543,316

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		2040-01-28
Baxalta Us Inc.	BUMINATE, FLEXBUMIN	albumin (human)	Injection	101452	03/03/1954		2040-01-28
Csl Behring Ag	ALBURX	albumin (human)	Injection	102366	07/23/1976		2040-01-28
Grifols Biologicals Llc	ALBUTEIN	albumin (human)	Injection	102478	08/15/1978		2040-01-28