A semi-pharmaceutical approach for the preparation of an anti-IL2 receptor monoclonal antibody in the treatment of acute GvHD in a multicentric study.

A monoclonal antibody against the IL2-Receptor (B-B10) has been developed which inhibits activated T cells. Large batches of B-B10 have been purified from ascites and were checked for the absence of endotoxins, murine DNA and virus before being released for clinical use. Thirty-two patients with corticosteroid-resistant acute Graft versus Host Disease have been treated with B-B10. No side effects were observed and 68% of the patients showed full response to treatment.