Prospective Assessment of Allogeneic Hematopoietic Cell Transplantation in Patients With Myelofibrosis
This observational study will compare outcomes of a prospectively-enrolled cohort of Hematopoietic Stem Cell Transplant (HCT) recipients with outcomes of a cohort of age-matched historical non-HCT controls. Patients undergoing alloHCT will receive HCT in a US transplant center and be reported to the Center for International Blood and Marrow Transplant Research (CIBMTR) using well-established CIBMTR report forms and data collection procedures as well as a study-specific supplemental form. Data on the historical non-HCT controls will be collected at 14 US academic centers. These centers will provide data on all consecutive patients with PMF, post-ET MF, or post-PV MF referred to their institutions between 2000 and 2012.
• Patients fulfilling the following criteria will be eligible for inclusion in the study:
‣ PMF, post-ET MF, or post-PV MF.
⁃ Int-2 or high-risk disease as determined by the DIPSS.
⁃ Age ≥55 at the time of DIPSS assessment.
⁃ For the alloHCT arm:
• Donors must be a 6/6 HLA-matched related donors, defined by Class I (HLA-A and -B) intermediate resolution or high resolution DNA-based typing and Class II (HLA-DRBI) at high resolution DNA-based typing (but not monozygotic twins) OR an 8/8 HLA-A, -B, -C, and -DRB1 at high resolution DNA-based typing matched unrelated donor identified through the National Marrow Donor Program (NMDP)/Be The Match. Donors must meet institutional or NMDP/Be The Match selection criteria; there is no age restriction for sibling donors.
∙ Both peripheral blood stem cells and bone marrow grafts are allowed.
∙ All conditioning regimen intensities are allowed.
∙ All GVHD prophylaxis regimens are allowed.
⁃ Haploidentical donors are allowed in the Haploidentical Donor Study