Patent ID: 11891431
Assignee: TAKEDA PHARM LIMITED CEUTICAL COMPANY LIMITED
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A  B | IPC A  B  C

Claim 18:
19. The composition according to claim 1, wherein the method after step (e) further comprises:
(f) precipitating IgG from the clarified suspension formed in step (e), in a third precipitation step, with from about 22% to about 28% alcohol at a pH of from about 6.7 to about 7.3 to form a third precipitate;
(g) suspending the third precipitate to form a second suspension; and
(h) separating a soluble fraction from an insoluble fraction in the second suspension formed in step (g), thereby forming a composition comprising a plasma-derived immunoglobulin G (IgG).