Faculty Collaboration Database

Ph+ ALL patients in first complete remission have similar survival after reduced intensity and myeloablative allogeneic transplantation: impact of tyrosine kinase inhibitor and minimal residual disease. Leukemia 2014 Mar;28(3):658-65

Date

08/31/2013

Pubmed ID

23989431

Pubmed Central ID

PMC3951192

DOI

10.1038/leu.2013.253

Scopus ID

2-s2.0-84895798872 (requires institutional sign-in at Scopus site)   101 Citations

Abstract

The efficacy of reduced intensity conditioning (RIC) allogeneic hematopoietic cell transplantation (HCT) for Philadelphia chromosome positive (Ph+) acute lymphoblastic leukemia (ALL) is uncertain. We analyzed 197 adults with Ph+ ALL in first complete remission; 67 patients receiving RIC were matched with 130 receiving myeloablative conditioning (MAC) for age, donor type and HCT year. Over 75% received pre-HCT tyrosine kinase inhibitors (TKIs), mostly imatinib; 39% (RIC) and 49% (MAC) were minimal residual disease (MRD)(neg) pre-HCT. At a median 4.5 years follow-up, 1-year transplant-related mortality (TRM) was lower in RIC (13%) than MAC (36%; P=0.001) while the 3-year relapse rate was 49% in RIC and 28% in MAC (P=0.058). Overall survival (OS) was similar (RIC 39% (95% confidence interval (CI) 27-52) vs 35% (95% CI 27-44); P=0.62). Patients MRD(pos) pre-HCT had higher risk of relapse with RIC vs MAC (hazard ratio (HR) 1.97; P=0.026). However, patients receiving pre-HCT TKI in combination with MRD negativity pre-RIC HCT had superior OS (55%) compared with a similar MRD population after MAC (33%; P=0.0042). In multivariate analysis, RIC lowered TRM (HR 0.6; P=0.057), but absence of pre-HCT TKI (HR 1.88; P=0.018), RIC (HR 1.891; P=0.054) and pre-HCT MRD(pos) (HR 1.6; P=0.070) increased relapse risk. RIC is a valid alternative strategy for Ph+ ALL patients ineligible for MAC and MRD(neg) status is preferred pre-HCT.

Author List

Bachanova V, Marks DI, Zhang MJ, Wang H, de Lima M, Aljurf MD, Arellano M, Artz AS, Bacher U, Cahn JY, Chen YB, Copelan EA, Drobyski WR, Gale RP, Greer JP, Gupta V, Hale GA, Kebriaei P, Lazarus HM, Lewis ID, Lewis VA, Liesveld JL, Litzow MR, Loren AW, Miller AM, Norkin M, Oran B, Pidala J, Rowe JM, Savani BN, Saber W, Vij R, Waller EK, Wiernik PH, Weisdorf DJ

Authors

William R. Drobyski MD Professor in the Medicine department at Medical College of Wisconsin
Wael Saber MD, MS 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

Adult
Animals
Bone Marrow Transplantation
Female
Guinea Pigs
Humans
Male
Middle Aged
Neoplasm, Residual
Philadelphia Chromosome
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Protein-Tyrosine Kinases
Remission Induction
Survival Rate
Transplantation Conditioning
Transplantation, Homologous
Young Adult