Auto-SCT improves survival in systemic light chain amyloidosis: a retrospective analysis with 14-year follow-up

Bone Marrow Transplant. 2014 Aug;49(8):1036-41. doi: 10.1038/bmt.2014.115. Epub 2014 Jun 2.

Abstract

Optimal treatment approach continues to remain a challenge for systemic light chain amyloidosis (AL). So far, Auto-SCT is the only modality associated with long-term survival. However, failure to show survival benefit in randomized study raises questions regarding its efficacy. We present a comparative outcome analysis of Auto-SCT to conventional therapies (CTR) in AL patients treated over a 14-year period at our institution. Out of the 145 AL amyloidosis patients, Auto-SCT was performed in 80 patients with 1-year non-relapse mortality rate of 12.5%. Novel agents were used as part of induction therapy in 56% of transplant recipients vs 46% of CTR patients. Hematological and organ responses were seen in 74.6% and 39% in the Auto-SCT arm vs 53% and 12% in the CTR arm, respectively. The projected 5-year survival for Auto-SCT vs CTR was 63% vs 38%, respectively. Landmark analysis of patients alive at 1-year after diagnosis showed improved 5-year OS of 72% with Auto-SCT vs 65% in the CTR arm. In the multivariate analysis, age <60 years, induction therapy with novel agents, kidney only involvement and Auto-SCT were associated with improved survival. In conclusion, Auto-SCT is associated with long-term survival for patients with AL amyloidosis.

Publication types

  • Clinical Trial

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Amyloidosis / mortality*
  • Amyloidosis / therapy*
  • Autografts
  • Disease-Free Survival
  • Female
  • Follow-Up Studies
  • Humans
  • Immunoglobulin Light Chains
  • Male
  • Middle Aged
  • Stem Cell Transplantation*
  • Time Factors

Substances

  • Immunoglobulin Light Chains