Faculty Collaboration Database

Multi-institutional study evaluating clinical outcome with allogeneic hematopoietic stem cell transplantation after blinatumomab in patients with B-cell acute lymphoblastic leukemia: real-world data. Bone Marrow Transplant 2021 Aug;56(8):1998-2004

Date

04/08/2021

Pubmed ID

33824440

DOI

10.1038/s41409-021-01279-w

Scopus ID

2-s2.0-85103674051 (requires institutional sign-in at Scopus site)   10 Citations

Abstract

Safety and efficacy of allogeneic hematopoietic stem cell transplantation (alloHCT) consolidation after blinatumomab is largely undetermined. To address this issue, we assembled multi-center data of relapsed refractory (RR) acute lymphocytic leukemia (ALL) patients who received alloHCT after blinatumomab. From December 2014 to May 2019, 223 patients who received blinatumomab for RR ALL outside clinical trials were identified. Among them, 106 (47%) patients transplanted post blinatumomab were evaluated for response and toxicity. Ninety-two (87%) patients received alloHCT after achieving CR, while remaining received subsequent salvage prior to undergoing alloHCT. Progression free survival (PFS) and overall survival (OS) at 2 years post alloHCT was 48% (95% CI: 36-59%) and 58% (95% CI: 45-69%), respectively. The cumulative incidence of GIII-IV aGVHD at 3 months was 9.9% (95% CI: 5.0-16.6%). Similarly, cumulative incidence of moderate to severe cGVHD at 2 years was 34.4% (95% CI: 23.7-45.3%). The overall survival at 2 years was not significantly different in patient who achieved CR with MRD negative (68.4% [95% CI: 28.5-89.1%]) compared to CR with MRD positive (63.4% [95% CI: 47.8-75.4%]) prior to alloHCT (p = 0.8). Our real-world analysis suggests that alloHCT is feasible and effective post blinatumomab in patients with RR ALL.

Author List

Badar T, Szabo A, Litzow M, Burkart M, Yurkiewicz I, Dinner S, Hefazi M, Shallis RM, Podoltsev N, Patel AA, Curran E, Wadleigh M, Balasubramanian S, Yang J, Arslan S, Aldoss I, Mattison R, Cenin D, Siebenaller C, Advani A, Liedtke M, Atallah E

Authors

Ehab L. Atallah MD Professor in the Medicine department at Medical College of Wisconsin
Aniko Szabo 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

Antibodies, Bispecific
B-Lymphocytes
Hematopoietic Stem Cell Transplantation
Humans
Precursor Cell Lymphoblastic Leukemia-Lymphoma