Sixteen kidney transplant recipients received the IgG2a anti-CD3 monoclonal antibody OKT3 and azathioprine as rejection prophylaxis during the first two postoperative weeks. Concomitant immunosuppression consisted of low dose steroids while cyclosporine A therapy was instituted on day 12. Side effects included fever, bronchospasm, hypotension and diarrhoea. OKT3 caused T cell modulation resulting in CD3 dim +, CD4+ or CD8+, CD5+, WT31- and 11F2-cells. Anti-OKT3 antibodies were found in approximately 50% of the patients. The protocol induced a 100% patient and graft survival and a 81% actuarial freedom of rejection at 18 months. It prevented CsA associated nephrotoxicity in the direct postoperative phase. These beneficial effects outweighed the side effects of OKT3.

kidney transplantation, OKT3, rejection prophylaxis,
Department of Internal Medicine

Weimar, W, Hesse, C.J, Vaessen, L.M.B, Hendriks, G.F.J, Jutte, N.H.P.M, & Jeekel, J. (1990). Rejection prophylaxis with sequential OKT3 and CSA after kidney transplantation. Biotherapy, 2(3), 267–270. doi:10.1007/BF02173528