Faculty Collaboration Database

Outcomes of human leukocyte antigen-matched sibling donor hematopoietic cell transplantation in chronic lymphocytic leukemia: myeloablative versus reduced-intensity conditioning regimens. Biol Blood Marrow Transplant 2014 Sep;20(9):1390-8

Date

06/01/2014

Pubmed ID

24880021

Pubmed Central ID

PMC4174349

DOI

10.1016/j.bbmt.2014.05.020

Scopus ID

2-s2.0-84905570108 (requires institutional sign-in at Scopus site)   16 Citations

Abstract

Allogeneic hematopoietic cell transplantation (HCT) can cure some chronic lymphocytic leukemia (CLL) subjects. This study compared outcomes of myeloablative (MA) and reduced-intensity conditioning (RIC) transplants from HLA-matched sibling donors (MSD) for CLL. From 1995 to 2007, information regarding 297 CLL subjects was reported to the Center of International Blood and Marrow Transplant Research; of these, 163 underwent MA and 134 underwent RIC MSD HCT. The MA subjects underwent transplantation less often after 2000 and less commonly received antithymocyte globulin (4% versus 13%, P = .004) or prior antibody therapy (14% versus 53%; P < .001). RIC was associated with a greater likelihood of platelet recovery and less grade 2 to 4 acute graft-versus-host disease compared with MA conditioning. One- and 5-year treatment-related mortality (TRM) were 24% (95% confidence intervals [CI], 16% to 33%) versus 37% (95% CI, 30% to 45%; P = .023), and 40% (95% CI, 29% to 51%) versus 54% (95% CI, 46% to 62%; P = .036), respectively, and the relapse/progression rates at 1 and 5 years were 21% (95% CI, 14% to 29%) versus 10% (95% CI, 6% to 15%; P = .020), and 35% (95% CI, 26% to 46%) versus 17% (95% CI, 12% to 24%; P = .003), respectively. MA conditioning was associated with better progression-free (PFS) (relative risk, .60; 95% CI, .37 to .97; P = .038) and 3-year survival in transplantations before 2001, but for subsequent years, RIC was associated with better PFS and survival (relative risk, 1.49 [95% CI, .92 to 2.42]; P = .10; and relative risk, 1.86 [95% CI, 1.11 to 3.13]; P = .019). Pretransplantation disease status was the most important predictor of relapse (P = .003) and PFS (P = .0007) for both forms of transplantation conditioning. MA and RIC MSD transplantations are effective for CLL. Future strategies to decrease TRM and reduce relapses are warranted.

Author List

Sobecks RM, Leis JF, Gale RP, Ahn KW, Zhu X, Sabloff M, de Lima M, Brown JR, Inamoto Y, Hale GA, Aljurf MD, Kamble RT, Hsu JW, Pavletic SZ, Wirk B, Seftel MD, Lewis ID, Alyea EP, Cortes J, Kalaycio ME, Maziarz RT, Saber W

Authors

Kwang Woo Ahn PhD Professor in the Institute for Health and Equity department at Medical College of Wisconsin
Wael Saber MD, MS Professor in the Medicine department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Adult
Female
HLA Antigens
Hematopoietic Stem Cell Transplantation
Humans
Leukemia, Lymphocytic, Chronic, B-Cell
Male
Middle Aged
Neoplasm Recurrence, Local
Siblings
Tissue Donors
Transplantation Conditioning
Treatment Outcome