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A comparison of cyclophosphamide and total body irradiation with etoposide and total body irradiation as conditioning regimens for patients undergoing sibling allografting for acute lymphoblastic leukemia in first or second complete remission. Biol Blood Marrow Transplant 2006 Apr;12(4):438-53 PMID: 16545728

Pubmed ID

16545728

Abstract

We compared the outcomes of 298 patients with acute lymphoblastic leukemia in first or second complete remission (CR1 or CR2) receiving HLA-matched sibling allografts after cyclophosphamide and total body irradiation (Cy-TBI) conditioning with 204 patients receiving etoposide and TBI. Consequently, 4 groups were compared: Cy-TBI <13 Gy (n = 217), Cy-TBI > or =13 Gy (n = 81), etoposide-TBI <13 Gy (n = 53), and etoposide-TBI > or =13 Gy (n = 151). Analyses of relapse, leukemia-free survival (LFS), and survival were performed separately for CR1 and CR2 transplantations. Transplant-related mortality did not differ by conditioning regimen. In CR1, there were also no significant differences in relapse, LFS, or survival by conditioning regimen. In CR2, these outcomes differed among conditioning groups. In comparison with Cy-TBI <13 Gy, the risks of relapse, treatment failure (inverse of LFS), and mortality tended to be lower with etoposide (regardless of TBI dose) or with TBI doses > or =13 Gy. For both CR1 and CR2 transplantations, causes of death were similar among the groups; disease recurrence accounted for 47% of deaths. We conclude that for HLA-identical sibling allografts for acute lymphoblastic leukemia in CR2, there is an advantage in substituting etoposide for Cy or, when Cy is used, in increasing the TBI dose to > or =13 Gy.

Author List

Marks DI, Forman SJ, Blume KG, PĂ©rez WS, Weisdorf DJ, Keating A, Gale RP, Cairo MS, Copelan EA, Horan JT, Lazarus HM, Litzow MR, McCarthy PL, Schultz KR, Smith DD, Trigg ME, Zhang MJ, Horowitz MM

Authors

Mary M. Horowitz MD, MS Center Director, 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




Scopus

2-s2.0-33644917778   105 Citations

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

Adolescent
Adult
Antineoplastic Agents, Phytogenic
Child
Child, Preschool
Cyclophosphamide
Disease-Free Survival
Etoposide
Female
Hematopoietic Stem Cell Transplantation
Humans
Infant
Male
Middle Aged
Myeloablative Agonists
Precursor Cell Lymphoblastic Leukemia-Lymphoma
Prospective Studies
Remission Induction
Siblings
Survival Rate
Transplantation Conditioning
Transplantation, Homologous
Whole-Body Irradiation
jenkins-FCD Prod-296 4db9d02597e0a2e889e230f853b641c12f1c3ee3