Stabilized anti-interleukin-6 antibody-containing preparations
The present invention provides stabilized preparations containing an antibody in a glycine buffer and/or a histidine buffer and also provides processes for preparing a protein-containing stabilized preparation, comprising adjusting the pH with a basic amino acid or a basic amino acid derivative or a salt thereof.
1. A stabilized preparation comprising a humanized PM-1 (hPM-1) antibody in a histidine buffer, wherein the histidine buffer has a concentration of 5 mM to 20 mM, and wherein the stabilized preparation is a solution formulation, and which does not contain NaCl as an isotonizing agent, and which has a pH of 5.7-6.2, and wherein said preparation is free of sugar.
2. The stabilized preparation of claim 1 , wherein said preparation comprises glycine as an isotonizing agent.
3. The stabilized preparation of claim 1 , wherein histidine is the only buffering agent in said preparation.
4. A process for preparing a stabilized formulation comprising a humanized PM-1 (hPM-1) antibody, which comprises incorporating said antibody into a solution comprising a histidine buffer, in such manner as to result in a solution preparation having a pH of 5.7-6.2 and a histidine concentration of 5 mM to 20 mM, which preparation is free of sugar and does not contain NaCl as an isotonizing agent.
5. The process of claim 4 , wherein histidine is the only buffering agent in said preparation.
6. The process of claim 4 , comprising incorporating glycine as an isotonizing agent.
7. The process of claim 4 , comprising adjusting the pH with a basic amino acid or a basic amino acid derivative or a salt thereof.
8. The process of claim 7 , wherein the basic amino acid is one or more members selected from the group consisting of histidine, arginine and lysine.
9. The process of claim 8 wherein the basic amino acid is histidine.