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Dose optimization of mycophenolate mofetil when administered with a low dose of tacrolimus in cadaveric renal transplant recipients

Lookup NU author(s): David Talbot

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Abstract

Background. Supplementation of immunosuppressive therapy with mycophenolate mofetil (MMF) has been found to reduce the rate of acute rejection in renal transplantation. We report a dose-finding study for MMF when administered in combination with low-dose tacrolimus and corticosteroid prophylaxis in cadaveric renal transplant recipients. Methods. Two hundred thirty-two patients at 16 centers were enrolled in this randomized, parallel-group study. The three treatment groups were tacrolimus and corticosteroids (MMF-0 group, n=82); tacrolimus, corticosteroids, and 1 g of MMF daily (MMF-1 g group, n=79); and tacrolimus, corticosteroids, and 2 g of MMF daily (MMF-2 g group, n=71), Study duration was 6 months, and patients were followed up for patient and graft survival for 12 months. Results. At 6 months posttransplantation daily doses of 1 g and 2 g of MMF were associated with significantly lower rates of acute rejection compared with tacrolimus alone. The Kaplan-Meier rates were 48.5%, 24.9%, and 22.9%, respectively, for the three treatment groups when acute rejection was determined by clinical criteria (P=0.007). At month 12, patient survival rates were 100%, 97.5%, and 97.2% and graft survival rates were 90.2%, 92.4%, and 93.0% for the MMF-0 group, MMF-1 g group, and the MMF-2 g group, respectively. Gastrointestinal adverse events and leukopenia were higher in the MMF groups, especially in the MMF-2 g group (P<0.05). Conclusions. Low-dose tacrolimus combined with a MMF dose of 1 g daily and corticosteroids provided an optimized efficacy and safety profile. A higher dose of MMF (2 g) was associated with greater toxicity without a significant improvement in efficacy.

Publication metadata

Author(s): Squifflet JP, Backman L, Claesson K, Dietl KH, Ekberg H, Forsythe JLR, Kunzendorf U, Heemann U, Land W, Morales JM, Muhlbacher F, Talbot D, Taube D, Tyden G, van Hooff J, Schleibner S, Vanrenterghem Y, European Tacrolimus MMF Renal Study

Publication type: Article

Publication status: Published

Journal: Transplantation

Year: 2001

Volume: 72

Issue: 1

Pages: 63-69

ISSN (print): 0041-1337

ISSN (electronic): 1534-6080

Publisher: Lippincott Williams & Wilkins

URL: http://dx.doi.org/10.1097/00007890-200107150-00014

DOI: 10.1097/00007890-200107150-00014

PubMed id: 11468536

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