Determinants of survival after first relapse of acute lymphoblastic leukemia: a Children’s Oncology Group study

Susan R. Rheingold, Deepa Bhojwani, Lingyun Ji, Xinxin Xu, Meenakshi Devidas, John A. Kairalla, Mary Shago, Nyla A. Heerema, Andrew J. Carroll, Heather Breidenbach, Michael Borowitz, Brent L. Wood, Anne L. Angiolillo, Barbara L. Asselin, W. Paul Bowman, Patrick Brown, Zo Ann E. Dreyer, Kimberly P. Dunsmore, Joanne M. Hilden, Eric LarsenKelly Maloney, Yousif Matloub, Leonard A. Mattano, Stuart S. Winter, Lia Gore, Naomi J. Winick, William L. Carroll, Stephen P. Hunger, Elizabeth A. Raetz, Mignon L. Loh

Research output: Contribution to journalArticlepeer-review

Abstract

Limited prognostic factors have been associated with overall survival (OS) post-relapse in childhood Acute Lymphoblastic Leukemia (ALL). Patients enrolled on 12 Children’s Oncology Group frontline ALL trials (1996–2014) were analyzed to assess for additional prognostic factors associated with OS post-relapse. Among 16,115 patients, 2053 (12.7%) relapsed. Relapse rates were similar for B-ALL (12.5%) and T-ALL (11.2%) while higher for infants (34.2%). Approximately 50% of B-ALL relapses occurred late (≥36 months) and 72.5% involved the marrow. Conversely, 64.8% of T-ALL relapses occurred early (<18 months) and 47.1% involved the central nervous system. The 5-year OS post-relapse for the entire cohort was 48.9 ± 1.2%; B-ALL:52.5 ± 1.3%, T-ALL:35.5 ± 3.3%, and infant ALL:21.5 ± 3.9%. OS varied by early, intermediate and late time-to-relapse; 25.8 ± 2.4%, 49.5 ± 2.2%, and 66.4 ± 1.8% respectively for B-ALL and 29.8 ± 3.9%, 33.3 ± 7.6%, 58 ± 9.8% for T-ALL. Patients with ETV6::RUNX1 or Trisomy 4 + 10 had median time-to-relapse of 43 months and higher OS post-relapse 74.4 ± 3.1% and 70.2 ± 3.6%, respectively. Patients with hypodiploidy, KMT2A-rearrangement, and TCF3::PBX1 had short median time-to-relapse (12.5-18 months) and poor OS post-relapse (14.2 ± 6.1%, 31.9 ± 7.7%, 36.8 ± 6.6%). Site-of-relapse varied by cytogenetic subtype. This large dataset provided the opportunity to identify risk factors for OS post-relapse to inform trial design and highlight populations with dismal outcomes post-relapse.

Original languageEnglish (US)
Pages (from-to)2382-2394
Number of pages13
JournalLeukemia
Volume38
Issue number11
DOIs
StatePublished - Nov 2024
Externally publishedYes

ASJC Scopus subject areas

  • Hematology
  • Oncology
  • Cancer Research

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