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  • Title: FK506 "rescue" for resistant rejection of renal allografts under primary cyclosporine immunosuppression.
    Author: Jordan ML, Shapiro R, Vivas CA, Scantlebury VP, Rhandhawa P, Carrieri G, McCauley J, Demetris AJ, Tzakis A, Fung JJ.
    Journal: Transplantation; 1994 Mar 27; 57(6):860-5. PubMed ID: 7512293.
    Abstract:
    Seventy-seven patients with ongoing acute rejection on initial CsA therapy were converted to FK506 to attempt graft salvage. Fifty-nine patients had undergone primary transplantation and 18 had been retransplanted; there were 52 cadaveric and 25 living-donor transplants. The indications for conversion to FK506 were ongoing, biopsy-confirmed rejection in all patients, including vascular rejection in 20. The median interval to rescue was 2 months (range 2 weeks to 36 months) after transplantation. Sixty-one of the 77 patients (79%) had already received one or more courses of an antilymphocyte preparation (OKT3: n = 33; ALG or ATG: n = 1; OKT3+ALG/ATG: n = 27). Of the 77 patients, 57 (74%) have been successfully rescued and still have functioning grafts with a mean follow-up of 14 months, with a mean serum creatinine of 2.35 +/- 0.97 mg/dl. Eighteen patients were already dialysis-dependent at the time of conversion to FK506; of these, 9 (50%) were successfully salvaged and have a mean serum creatinine of 2.3 mg/dl. Of the 61 patients previously treated with antilymphocyte preparations, 48 (79%) were rescued. In those salvaged, prednisone doses have been lowered from 22.2 +/- 7.2 mg/day preconversion to 7.5 +/- 5.6 mg/day postconversion, and 12 patients are on FK506 monotherapy. In nondiabetics, mean serum glucose was 101.4 +/- 20.5 mg/dl preconversion and 93.2 +/- 22 postconversion (P = 0.07), uric acid 7.3 +/- 2.3 and 7.1 +/- 1.5 mg/dl (P = 0.53), and triglycerides 199.2 +/- 101.6 and 167.2 +/- 106.4 mg/dl (P = 0.06). Cholesterol levels were significantly lower following FK conversion (207.7 +/- 46.5 mg/dl pre. vs. 188.3 +/- 39.7 post., P = 0.007). FK506 is capable of salvaging renal allografts with ongoing acute rejection on CsA therapy, even when antilymphocyte preparations have been ineffective.
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