• T Hamazaki, K Yagi, M Inoue, N Sakata, T Okamura, M Yasui, M Sasabe, T Kishimoto, A Inoue, and K Kawa.
• Department of Pediatrics, Osaka Medical Center.
• Rinsho Ketsueki. 2000 May 1; 41 (5): 430-6.

AbstractForty-eight patients who underwent bone marrow transplantation (BMT) from serologically HLA-matched unrelated donors received tacrolimus (FK506) alone or with methotrexate (MTX) and/or methylprednisolone (mPSL) to prevent graft-versus-host disease (GVHD). We analyzed retrospectively the efficacy of FK506 for GVHD prophylaxis, and its toxicity, by comparing three groups of patients: those given FK506 alone, those given FK506 + mPSL, and those given FK506 + MTX + mPSL. Grade III and IV acute GVHD occurred in five of 10 patients given FK506 alone and in 11 of 30 patients given FK506 + mPSL. In these groups, severe acute GVHD was commonly seen in the patients who discontinued FK506 administration early after BMT and in those who received bone marrow from genotypically HLA-mismatched donors. Early withdrawal of FK506 was due mainly to severe nephrotoxicity. The incidence of nephrotoxicity was very high in patients who received high-dose FK506 as well as melphalan-containing preconditioning (80% and 50%). None of eight patients who received FK506 + mPSL + MTX developed grade III-IV acute GVHD even though five of them received bone marrow from genotypically HLA-mismatched donors. In patients receiving bone marrow from unrelated donors, adjustment of the initial dose of FK506 seems essential in order to avoid severe nephrotoxicity, and combination of MTX and FK506 is useful for preventing severe acute GVHD.

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