Composition of intravenous immune globulin
AssigneeArmour Pharmceutical Company
InventorsWillie M. Curry, David L. Farb
Life of this patent
Estimating the term…
Abstract
An intravenous immune globulin preparation having at least 99% pure globulin protein and an anticomplement activity of less than 0.10 C'50 units/mg IgG prepared by: precipitating impurities from Cohn Fraction II in an aqueous-alcohol medium at defined temperature and pH, removing the precipitated impurities, stabilizing the diluted solution with albumin, concentrating the solution and removing the alcohol therefrom. Also prepared by this method, an intravenous, hyperimmune globulin preparation having increased antibody titers to sixteen serospecific strains of Pseudomonas aeruginosa.
Claims5
An unmodified, native immune gamma globulin preparation for intravenous administration said preparation comprising:
- 1 to 5 parts by weight of at least 99.5% pure native gamma globulin consisting of about 64% IgG.sub.1, 29% IgG.sub.2, 6% IgG.sub.3 and 1% IgG.sub.4 having undergone no chemical or enzymatic modification, containing no residual chemicals therein which may deleteriously affect a patient, containing less than about 0.1% IgA, is essentially free of IgM and molecular aggregates, and having an anticompliment activity of less than 0.1 C'50 units per mg;
- 1 part of human serum albumin;
- about 0.45 to 0.9% w/v sodium chloride;
- about 2.5 to 10% w/v of a carbohydrate selected from the group consisting of maltose, sucrose and glucose.
A lyophilized unmodified, native immune globulin preparation in a pharmaceutical dosage form for intravenous administration comprising:
- about 2.5 gms of at least 99.5% pure native gamma globulin consisting of about 64% IgG.sub.1, 29% IgG.sub.2, 6% IgG.sub.3 and 1% IgG.sub.4, having undergone no chemical or enzymatic modification, containing no residual chemicals therein which may deleteriously affect a patient, containing less than about 0.1% IgA, is essentially free of IgM and molecular aggregates, and having an anticomplement activity of less than 0.1 C'50 units per mg;
- about 1.25 gms normal serum albumin;
- about 0.1 gm sodium chloride;
- about 5.0 gms maltose;
- and sufficient water to q.s. to 50 ml.
An unmodified, native hyperimmune gamma globulin preparation for intravenous administration having at least a two-fold increase in antibody titer levels of normal immune gamma globulin to at least one serospecific strain of Pseudomonas aeruginosa said preparation comprising:
- 1 to 5 parts by weight of at least 99.5% pure, native hyperimmune gamma globulin consisting of about 64% IgG.sub.1, 29% IgG.sub.2, 6% IgG.sub.3 and 1% IgG.sub.4, having undergone no chemical or enzymatic modification, containing no residual chemicals therein which may deleteriously affect a patient, containing less than about 0.1% IgA, is essentially free of IgM and molecular aggregates, and having an anticompliment activity of less than 0.1 C'50 units per mg;
- 1 part of human serum albumin;
- about 0.45 to 0.9 w/v sodium chloride;
- about 2.5 to 10% w/v of a carbohydrate selected from the group consisting of maltose, sucrose and glucose.
Dependencies are inferred from the claim text.