Faculty Collaboration Database

Mobilized Peripheral Blood Stem Cells Versus Unstimulated Bone Marrow As a Graft Source for T-Cell-Replete Haploidentical Donor Transplantation Using Post-Transplant Cyclophosphamide. J Clin Oncol 2017 Sep 10;35(26):3002-3009

Date

06/24/2017

Pubmed ID

28644773

Pubmed Central ID

PMC5590802

DOI

10.1200/JCO.2017.72.8428

Scopus ID

2-s2.0-85029169856 (requires institutional sign-in at Scopus site)   228 Citations

Abstract

Purpose T-cell-replete HLA-haploidentical donor hematopoietic transplantation using post-transplant cyclophosphamide was originally described using bone marrow (BM). With increasing use of mobilized peripheral blood (PB), we compared transplant outcomes after PB and BM transplants. Patients and Methods A total of 681 patients with hematologic malignancy who underwent transplantation in the United States between 2009 and 2014 received BM (n = 481) or PB (n = 190) grafts. Cox regression models were built to examine differences in transplant outcomes by graft type, adjusting for patient, disease, and transplant characteristics. Results Hematopoietic recovery was similar after transplantation of BM and PB (28-day neutrophil recovery, 88% v 93%, P = .07; 100-day platelet recovery, 88% v 85%, P = .33). Risks of grade 2 to 4 acute (hazard ratio [HR], 0.45; P < .001) and chronic (HR, 0.35; P < .001) graft-versus-host disease were lower with transplantation of BM compared with PB. There were no significant differences in overall survival by graft type (HR, 0.99; P = .98), with rates of 54% and 57% at 2 years after transplantation of BM and PB, respectively. There were no differences in nonrelapse mortality risks (HR, 0.92; P = .74) but relapse risks were higher after transplantation of BM (HR, 1.49; P = .009). Additional exploration confirmed that the higher relapse risks after transplantation of BM were limited to patients with leukemia (HR, 1.73; P = .002) and not lymphoma (HR, 0.87; P = .64). Conclusion PB and BM grafts are suitable for haploidentical transplantation with the post-transplant cyclophosphamide approach but with differing patterns of treatment failure. Although, to our knowledge, this is the most comprehensive comparison, these findings must be validated in a randomized prospective comparison with adequate follow-up.

Author List

Bashey A, Zhang MJ, McCurdy SR, St Martin A, Argall T, Anasetti C, Ciurea SO, Fasan O, Gaballa S, Hamadani M, Munshi P, Al Malki MM, Nakamura R, O'Donnell PV, Perales MA, Raj K, Romee R, Rowley S, Rocha V, Salit RB, Solh M, Soiffer RJ, Fuchs EJ, Eapen M

Authors

Mary Eapen MBBS, DCh, MRCPI, MS Professor in the Medicine department at Medical College of Wisconsin
Mehdi H. Hamadani MD Professor in the Medicine department at Medical College of Wisconsin
Mei-Jie Zhang PhD 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

Adolescent
Adult
Aged
Bone Marrow Transplantation
Cyclophosphamide
Donor Selection
Female
Haplotypes
Hematologic Neoplasms
Hematopoietic Stem Cell Mobilization
Hematopoietic Stem Cells
Humans
Male
Middle Aged
T-Lymphocytes
Transplantation Conditioning
Young Adult