Donor, recipient, and transplant characteristics as risk factors after unrelated donor PBSC transplantation: beneficial effects of higher CD34+ cell dose. Blood 2009 Sep 24;114(13):2606-16
Date
07/18/2009Pubmed ID
19608747Pubmed Central ID
PMC2756121DOI
10.1182/blood-2009-03-208355Scopus ID
2-s2.0-70350513277 (requires institutional sign-in at Scopus site) 117 CitationsAbstract
We report outcomes of 932 recipients of unrelated donor peripheral blood stem cell hematopoietic cell transplantation (URD-PBSC HCT) for acute myeloid leukemia, acute lymphoblastic leukemia, chronic myelogenous leukemia, and myelodysplastic syndrome enrolled on a prospective National Marrow Donor Program trial from 1999 through 2003. Preparative regimens included myeloablative (MA; N = 611), reduced-intensity (RI; N = 160), and nonmyeloablative (NMA; N = 161). For MA recipients, CD34(+) counts greater than 3.8 x 10(6)/kg improved neutrophil and platelet engraftment, whereas improved overall survival (OS) and reduced transplant-related mortality (TRM) were seen for all preparative regimens when CD34(+) cell doses exceeded 4.5 x 10(6)/kg. Higher infused doses of CD34(+) cell dose did not result in increased rates of either acute or chronic graft-versus-host disease (GVHD). Three-year OS and disease-free survival (DFS) of recipients of MA, RI, and NMA approaches were similar (33%, 35%, and 32% OS; 33%, 30%, and 29% DFS, respectively). In summary, recipients of URD-PBSC HCT receiving preparative regimens differing in intensity experienced similar survival. Higher CD34(+) cell doses resulted in more rapid engraftment, less TRM, and better 3-year OS (39% versus 25%, MA, P = .004; 38% versus 21% RI/NMA, P = .004) but did not increase the risk of GVHD. This trial was registered at www.clinicaltrials.gov as #NCT00785525.
Author List
Pulsipher MA, Chitphakdithai P, Logan BR, Leitman SF, Anderlini P, Klein JP, Horowitz MM, Miller JP, King RJ, Confer DLAuthors
Mary M. Horowitz MD, MS Professor in the Medicine department at Medical College of WisconsinBrent R. Logan PhD Director, Professor in the Institute for Health and Equity department at Medical College of Wisconsin
MESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Aged, 80 and over
Antigens, CD34
Blood Cell Count
Blood Cells
Blood Donors
Child
Female
Graft vs Host Disease
Humans
Leukemia
Male
Middle Aged
Myelodysplastic Syndromes
Peripheral Blood Stem Cell Transplantation
Risk Factors
Survival Analysis
Transplantation Conditioning
Transplantation, Homologous