Outcomes with autologous stem cell transplant vs. non-transplant therapy in patients 70 years and older with multiple myeloma

Bone Marrow Transplant. 2021 Feb;56(2):368-375. doi: 10.1038/s41409-020-01026-7. Epub 2020 Aug 11.

Abstract

We evaluated 79 patients with multiple myeloma (MM) ≥70 years referred to our blood and marrow transplant clinic, within 1 year of diagnosis from 2010 to 2019, for consideration of autologous stem cell transplant (ASCT). Thirty-eight (48%) of 79 patients underwent ASCT. ASCT was not pursued in 41 (52%) patients due to: patient or physician preference in 80% (n = 33) or ineligibility in 20% (n = 8). Baseline characteristics of patients in the two groups were similar. Median PFS from treatment start amongst patients undergoing ASCT (n = 38) vs. not (n = 41) was 41 months vs. 33 months, p = 0.03. There was no difference in OS, with estimated 5-year OS of 73% vs. 83%, respectively (p = 0.86). Day +100 transplant-related mortality (TRM) was 0%. ASCT was an independent favorable prognostic factor for PFS in multivariate analysis, after accounting for HCT-CI score, performance status, hematologic response, and maintenance. Finally, patients ≥70 years undergoing ASCT had similar PFS compared to a contemporaneous institutional cohort of patients <70 years (n = 631) (median PFS from transplant: 36 vs. 47 months, p = 0.25). In this retrospective analysis, ASCT was associated with low TRM and better PFS in fit older adults with MM compared to non-transplant therapy, with comparable benefits as seen in younger patients.

Publication types

  • Research Support, N.I.H., Extramural

MeSH terms

  • Aged
  • Disease-Free Survival
  • Hematopoietic Stem Cell Transplantation*
  • Humans
  • Multiple Myeloma* / therapy
  • Retrospective Studies
  • Stem Cell Transplantation
  • Transplantation Conditioning
  • Transplantation, Autologous
  • Treatment Outcome