Faculty Collaboration Database

A trial of unrelated donor marrow transplantation for children with severe sickle cell disease. Blood 2016 Nov 24;128(21):2561-2567

Date

09/15/2016

Pubmed ID

27625358

Pubmed Central ID

PMC5123194

DOI

10.1182/blood-2016-05-715870

Scopus ID

2-s2.0-85015019083 (requires institutional sign-in at Scopus site)   153 Citations

Abstract

Children with sickle cell disease experience organ damage, impaired quality of life, and premature mortality. Allogeneic bone marrow transplant from an HLA-matched sibling can halt disease progression but is limited by donor availability. A Blood and Marrow Transplant Clinical Trials Network (BMT CTN) phase 2 trial conducted from 2008 to 2014 enrolled 30 children aged 4 to 19 years; 29 were eligible for evaluation. The primary objective was 1-year event-free survival (EFS) after HLA allele-matched (at HLA-A, -B, -C, and -DRB1 loci) unrelated donor transplant. The conditioning regimen included alemtuzumab, fludarabine, and melphalan. Graft-versus-host disease (GVHD) prophylaxis included calcineurin inhibitor, short-course methotrexate, and methylprednisolone. Transplant indications included stroke (n = 12), transcranial Doppler velocity >200 cm/s (n = 2), ≥3 vaso-occlusive pain crises per year (n = 12), or ≥2 acute chest syndrome episodes (n = 4) in the 2 years preceding enrollment. Median follow-up was 26 months (range, 12-62 months); graft rejection was 10%. The 1- and 2-year EFS rates were 76% and 69%, respectively. The corresponding rates for overall survival were 86% and 79%. The day 100 incidence rate of grade II-IV acute GVHD was 28%, and the 1-year incidence rate of chronic GVHD was 62%; 38% classified as extensive. There were 7 GVHD-related deaths. A 34% incidence of posterior reversible encephalopathy syndrome was noted in the first 6 months. Although the 1-year EFS met the prespecified target of ≥75%, this regimen cannot be considered sufficiently safe for widespread adoption without modifications to achieve more effective GVHD prophylaxis. The BMT CTN #0601 trial was registered at www.clinicaltrials.gov as #NCT00745420.

Author List

Shenoy S, Eapen M, Panepinto JA, Logan BR, Wu J, Abraham A, Brochstein J, Chaudhury S, Godder K, Haight AE, Kasow KA, Leung K, Andreansky M, Bhatia M, Dalal J, Haines H, Jaroscak J, Lazarus HM, Levine JE, Krishnamurti L, Margolis D, Megason GC, Yu LC, Pulsipher MA, Gersten I, DiFronzo N, Horowitz MM, Walters MC, Kamani N

Authors

Mary Eapen MBBS, DCh, MRCPI, MS Professor in the Medicine department at Medical College of Wisconsin
Mary M. Horowitz MD, MS Professor in the Medicine department at Medical College of Wisconsin
Brent R. Logan PhD Director, Professor in the Institute for Health and Equity department at Medical College of Wisconsin
David A. Margolis MD Chair, Professor in the Pediatrics department at Medical College of Wisconsin

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

Adolescent
Allografts
Anemia, Sickle Cell
Bone Marrow Transplantation
Calcineurin Inhibitors
Child
Disease-Free Survival
Female
Follow-Up Studies
Graft vs Host Disease
Humans
Male
Survival Rate
Unrelated Donors