Method of stabilizing antibody and stabilized solution-type antibody preparation
The present invention provides a method of suppressing the formation of a soluble association of an antibody in a solution; a method of suppressing the formation of a chemically degraded product of an antibody in a solution; and a method of stabilizing an antibody in a solution. The present invention also provides a solution-type antibody preparation in which the formation of a soluble association is suppressed; a solution-type antibody preparation in which the formation of a chemically degraded product is suppressed; a solution-type antibody preparation in which the formation of a soluble association, the formation of a chemically degraded product and the formation of an insoluble aggregate are suppressed; an agent for suppressing the formation of a soluble association of an antibody; an agent for suppressing the formation of a chemically degraded product of an antibody; and a stabilizing agent for an antibody.
1. A solution-type antibody preparation comprising an antibody, 10 to 30 mg/mL glycine, and 0.1 to 50 mmol/L citric acid, wherein the formation of soluble associations and chemically degraded products of said antibody are inhibited in said preparation,
wherein said preparation has at least one of the following features (a) and (b):
(a) said preparation contains between 0.1 to 1 mg/mL of non-ionic surfactant; and
(b) said preparation does not contain polyethylene glycol.
2. The preparation according to claim 1 , wherein the concentration of the antibody in said solution is from 0.01 to 150 mg/mL.
3. The preparation according to claim 1 , wherein the preparation contains between 0.3 to 1 mg/mL of nonionic surfactant.
4. The preparation according to claim 1 , wherein the pH of the preparation is within the range of 4 to 7.
5. The preparation according to claim 1 , wherein the antibody is one antibody selected from the group consisting of a chimeric antibody, a humanized antibody and a human antibody.
6. The preparation according to claim 1 , wherein the antibody has an Fc region originated from a human antibody.
7. The preparation according to claim 1 , wherein the antibody has a constant region originated from a human antibody.
8. The preparation according to claim 1 , wherein the antibody is an antibody to ganglioside GD3 or an antibody to CCR4.
9. The preparation according to claim 1 , wherein said preparation is an aqueous solution, having a pH of between 5 and 6, consisting essentially of 10 to 30 mg/mL glycine, 0.1 to 50 mmol/L citric acid, and an antibody, wherein said antibody is antibody an antibody having the amino acid sequence of KM2760.
10. The preparation according to claim 1 , wherein said preparation is an aqueous solution, having a pH of between 5 and 6, consisting essentially of 10 to 30 mg/mL glycine, 0.1 to 50 mmol/L citric acid, polysorbate 20 or polysorbate 80, and an antibody, wherein said antibody is antibody an antibody having the amino acid sequence of KM2760.
11. The preparation according to claim 1 , wherein said preparation is an aqueous solution, having a pH of between 5 and 6, consisting essentially of 10 to 30 mg/mL glycine, 0.1 to 50 mmol/L citric acid, and an antibody, wherein said antibody is an antibody having the amino acid sequence of antibody KM 8760.
12. The preparation according to claim 1 , wherein said preparation is an aqueous solution, having a pH of between 5 and 6, consisting essentially of 10 to 30 mg/mL glycine, 0.1 to 50 mmol/L citric acid, polysorbate 20 or polysorbate 80, and an antibody, wherein said antibody is an antibody having the amino acid sequence of antibody KM 8760.