| 摘要 |
<p>PCT No. PCT/GB92/01970 Sec. 371 Date Apr. 28, 1994 Sec. 102(e) Date Apr. 28, 1994 PCT Filed Oct. 27, 1992 PCT Pub. No. WO93/08837 PCT Pub. Date May 13, 1993A stabilized immunoglobulin composition comprises at least one immunoglobulin together with a stabilizing amount of a chelator of copper ions such as EDTA or citrate. Preferably the immunoglobulin is an antibody, for example, a recombinant CDR-grafted antibody. A process for enhancing the stability of an immunoglobulin comprises subjecting the immunoglobulin to a purification procedure capable of removing copper ions therefrom. Preferably, the immunoglobulin is rendered substantially free from detectable copper ions as determined, for example, by atomic absorption spectroscopy.</p> |
