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A randomized phase II trial comparing tacrolimus and mycophenolate mofetil to tacrolimus and methotrexate for acute graft-versus-host disease prophylaxis.

Author(s): Perkins J, Field T, Kim J, Kharfan-Dabaja MA, Fernandez H, Ayala E, Perez L, Xu M, Alsina M, Ochoa L, Sullivan D, Janssen W, Anasetti C

Affiliation(s): Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA. Janelle.perkins@moffitt.org

Publication date & source: 2010-07, Biol Blood Marrow Transplant., 16(7):937-47. Epub 2010 Jan 25.

Publication type: Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't

Tacrolimus (Tac) plus methotrexate (MTX) is a standard regimen for graft-versus-host disease (GVHD) prophylaxis. Mycophenolate mofetil (MMF) is sometimes used instead of MTX to minimize toxicity, despite the lack of controlled studies demonstrating efficacy. We conducted a single-center, randomized phase II trial comparing Tac + MMF to Tac + MTX. Intent-to-treat analyses included 42 patients randomized to Tac + MMF and 47 to Tac + MTX. Patient characteristics were not different between the study arms. Patients in the Tac + MMF arm were less likely to experience severe mucositis, require narcotic analgesia and parenteral nutrition, and had earlier hospital discharge. The Tac + MMF arm had the same time to neutrophil recovery, but earlier platelet recovery. The cumulative incidence of grade II-IV acute GVHD (aGVHD) at 100 days was similar (P = .8), but grade III-IV aGVHD was higher in the Tac + MMF arm (19% versus 4%; P = .03); this was predominantly seen in unrelated donor transplants (26% versus 4%; P = .04), and less in related donor transplants (11% versus 4%; P = n.s.). Moderate or severe chronic GVHD was similar (P = .71). There were no significant differences between the arms in relapse, nonrelapse mortality, or overall and relapse-free survivals. MMF was associated with less early toxicity than MTX but was not as effective in preventing severe aGVHD, especially in unrelated donor transplants.

Page last updated: 2010-10-05

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