Journal of Clinical Medicine (Jun 2022)

Complications of Autologous Stem Cell Transplantation in Multiple Myeloma: Results from the CALM Study

  • Anna Waszczuk-Gajda,
  • Olaf Penack,
  • Giulia Sbianchi,
  • Linda Koster,
  • Didier Blaise,
  • Péter Reményi,
  • Nigel Russell,
  • Per Ljungman,
  • Marek Trneny,
  • Jiri Mayer,
  • Simona Iacobelli,
  • Guido Kobbe,
  • Christof Scheid,
  • Jane Apperley,
  • Cyrille Touzeau,
  • Stig Lenhoff,
  • Esa Jantunen,
  • Achilles Anagnostopoulos,
  • Laura Paris,
  • Paul Browne,
  • Catherine Thieblemont,
  • Nicolaas Schaap,
  • Jorge Sierra,
  • Ibrahim Yakoub-Agha,
  • Laurent Garderet,
  • Jan Styczynski,
  • Helene Schoemans,
  • Ivan Moiseev,
  • Rafael F. Duarte,
  • Zinaida Peric,
  • Silvia Montoto,
  • Anja van Biezen,
  • Malgorzata Mikulska,
  • Mahmoud Aljurf,
  • Tapani Ruutu,
  • Nicolaus Kröger,
  • Curly Morris,
  • Christian Koenecke,
  • Stefan Schoenland,
  • Grzegorz W. Basak

DOI
https://doi.org/10.3390/jcm11123541
Journal volume & issue
Vol. 11, no. 12
p. 3541

Abstract

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Background: The main goal of this post hoc analysis of the Collaboration to Collect Autologous Transplant Outcomes in Lymphoma and Myeloma (CALM) study was to evaluate the rate of short- and long-term infectious and non-infectious complications occurring after ASCT in patients with multiple myeloma (MM). Methods: The analysis included all patients with MM from the CALM study who underwent ≥1 ASCT. The primary endpoint of the analysis was to determine the rate of infectious and non-infectious complications after ASCT and to compare them in three time periods: 0–100 days, 101 days–1 year, and >1 year after the first transplant. Results: The analysis included a total of 3552 patients followed up for a median of 56.7 months (range 0.4–108.1). Complication rates decreased with the time from ASCT with 24.85 cases per 100 patient-years from day 0 to 100 days after the transplant, and <2.31 cases per 100 patient-years from the 101st day. At 100 days after ASC T, 45.7% of patients had complications, with infectious events being twice as frequent as non-infectious complications. Bacterial infections (6.5 cases per 100 patient-years, 95% CI: 6.1–7.0) and gastrointestinal complications (4.7 cases per 100 patient-years, 95% CI: 4.3–5.1) were the most common early events. The pattern of complications changed with time from ASCT. The presence of complications after ASCT was not associated with overall survival. Conclusions: Our data provide a solid basis for comparing ASCT-related complications to those caused by emerging treatments in multiple myeloma, such as CAR T-cell therapy and other immunotherapies.

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