Tacrolimus and Mycophenolate Mofetil (MMF) in GVHD Prophylactic Regimen Compared to Tacrolimus and Methotrexate (MTX

Tacrolimus and Mycophenolate Mofetil (MMF) in GVHD Prophylactic Regimen Compared to Tacrolimus and Methotrexate (MTX

Safety of Tacrolimus And Methotrexate (MTX) Versus Tacrolimus And Mycophenolate Mofetil (MMF) As Graft Versus Host Disease Prophylaxis In Allogeneic Hematopoietic Cell Transplants (HCT)

A comparative trial where all patients will receive daily doses of tacrolimus (TAC) until day +60 when tapering will begin, in the absence of graft-versus-host disease (GVHD), and discontinued by day +180. In addition patients will be randomized to methotrexate (MTX) or mycophenolate mofetil (MMF) and again, in the absence of GVHD, a tapering schedule will begin on day +240 and be completed on day +360. Doses will be adjusted to maintain blood levels.

The randomization for this comparative trial will be stratified by conditioning regimen and, for those patients enrolled on MCC-14178, by busulfan AUC level. All patients will receive daily doses of TAC beginning day -3 (day 0 being the day of hematopoietic stem cell transplant (HCT)) and will be given until day +60 when tapering will begin in the absence of GVHD. Provided no GVHD develops, TAC should be discontinued by day +180. Doses will be adjusted to maintain blood levels. In addition to TAC, patients will be randomized to one of the following additional anti-GVHD medications: MTX or MMF beginning day 0 at least 2 hours after the end of the HCT. In the absence of GVHD a tapering schedule will begin on day +240 and be completed on day +360. Study participants will be extensively monitored as inpatients and then weekly as outpatients. Some tests will be conducted at least twice weekly (blood tests, toxicity data, GVHD and physical exams) one-month post-transplant and during the tapering off periods for up to 2 years.

Tacrolimus, Methotrexate, Mycophenolate mofetil, Mucositis, Acute graft-versus-host disease (aGVHD), Engraftment, hemolytic/uremic syndrome (HUS), Thrombotic thrombocytopenic purpura (TTP)

Tacrolimus- 0.03mg/kg/24h IV beginning day-3 Methotrexate- 15mg/m2 IV day +1 then 10mg/m2 IV on days 3, 6, 11 post transplant.

Tacrolimus- 0.03 mg/kg/24h as a continuous IV infusion, beginning day -3. Mycophenolate Mofetil- 30 mg/kg/day IV in 2 divided doses (q12 hours) beginning day 0 at least 2 hours after the end of the hematopoietic stem cell transplant

Mucositis was assessed prospectively daily while the patient was hospitalized and graded retrospectively based on nurse and clinician assessments according to the clinical criteria set forth in the National Cancer Institute Common Terminology Criteria for Adverse Events (CTCAE; version 3.0). Severe mucositis as defined as grade 3 or grade 4.

Inclusion Criteria: - Patient must be going through a T cell-replete allogeneic transplant Exclusion Criteria: - A contraindication to the use of tacrolimus, mycophenolate, or methotrexate

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. A randomized phase II trial comparing tacrolimus and mycophenolate mofetil to tacrolimus and methotrexate for acute graft-versus-host disease prophylaxis. Biol Blood Marrow Transplant. 2010 Jul;16(7):937-47. doi: 10.1016/j.bbmt.2010.01.010. Epub 2010 Jan 25.