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Reduced-intensity hematopoietic cell transplantation for patients with primary myelofibrosis: a cohort analysis from the center for international blood and marrow transplant research.


ABSTRACT: We evaluated outcomes and associated prognostic factors in 233 patients undergoing allogeneic hematopoietic cell transplantation (HCT) for primary myelofibrosis (MF) using reduced-intensity conditioning (RIC). The median age at RIC HCT was 55 yr. Donors were a matched sibling donor (MSD) in 34% of RIC HCTs, an HLA well-matched unrelated donor (URD) in 45%, and a partially matched/mismatched URD in 21%. Risk stratification according to the Dynamic International Prognostic Scoring System (DIPSS) was 12% low, 49% intermediate-1, 37% intermediate-2, and 1% high. The probability of survival at 5 yr was 47% (95% confidence interval [CI], 40% to 53%). In a multivariate analysis, donor type was the sole independent factor associated with survival. Adjusted probabilities of survival at 5-yr were 56% (95% CI, 44% to 67%) for MSD, 48% (95% CI, 37% to 58%) for well-matched URD, and 34% (95% CI, 21% to 47%) for partially matched/mismatched URD (P = .002). The relative risk (RR) for NRM was 3.92 (P = .006) for well-matched URD and 9.37 (P < .0001) for partially matched/mismatched URD. Trends toward increased NRM (RR, 1.7; P = .07) and inferior survival (RR, 1.37; P = .10) were observed in DIPSS intermediate-2/high-risk patients compared with DIPSS low/intermediate-1 risk patients. Our data indicate that RIC HCT is a potentially curative option for patients with MF, and that donor type is the most important factor influencing survival in these patients.

SUBMITTER: Gupta V 

PROVIDER: S-EPMC3886623 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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Reduced-intensity hematopoietic cell transplantation for patients with primary myelofibrosis: a cohort analysis from the center for international blood and marrow transplant research.

Gupta Vikas V   Malone Adriana K AK   Hari Parameswaran N PN   Ahn Kwang Woo KW   Hu Zhen-Huan ZH   Gale Robert Peter RP   Ballen Karen K KK   Hamadani Mehdi M   Olavarria Eduardo E   Gerds Aaron T AT   Waller Edmund K EK   Costa Luciano J LJ   Antin Joseph H JH   Kamble Rammurti T RT   van Besien Koen M KM   Savani Bipin N BN   Schouten Harry C HC   Szer Jeffrey J   Cahn Jean-Yves JY   de Lima Marcos J MJ   Wirk Baldeep B   Aljurf Mahmoud D MD   Popat Uday U   Bejanyan Nelli N   Litzow Mark R MR   Norkin Maxim M   Lewis Ian D ID   Hale Gregory A GA   Woolfrey Ann E AE   Miller Alan M AM   Ustun Celalettin C   Jagasia Madan H MH   Lill Michael M   Maziarz Richard T RT   Cortes Jorge J   Kalaycio Matt E ME   Saber Wael W  

Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation 20131023 1


We evaluated outcomes and associated prognostic factors in 233 patients undergoing allogeneic hematopoietic cell transplantation (HCT) for primary myelofibrosis (MF) using reduced-intensity conditioning (RIC). The median age at RIC HCT was 55 yr. Donors were a matched sibling donor (MSD) in 34% of RIC HCTs, an HLA well-matched unrelated donor (URD) in 45%, and a partially matched/mismatched URD in 21%. Risk stratification according to the Dynamic International Prognostic Scoring System (DIPSS) w  ...[more]

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