Reduced-intensity conditioning lowers treatment-related mortality of allogeneic stem cell transplantation for chronic lymphocytic leukemia: A population-matched analysis

Peter Dreger, R. Brand, D. Milligan, P. Corradini, J. Finke, G. Lambertenghi Deliliers, R. Martino, N. Russell, A. van Biezen, M. Michallet, D. Niederwieser, R. P. Herrmann, H. Greinix, A. Ferrant, V. Koza, A. Vitek, L. Vindelöv, T. Ruutu, K. Remes, N. MilpiedB. Varet, N. C. Gorin, L. Sutton, N. Kröger, B. Hertenstein, L. Trümper, D. Beelen, G. Derigs, J. Casper, S. Stilgenbauer, D. Bunjes, I. Majolino, A. Bacigalupo, G. Meloni, R. Willemze, T. de Witte, J. J. Cornelissen, L. Verdonck, J. Hansz, G. Morgenstern, J. Hows, A. Goldstone, J. Aschan, G. Öberg, J. Esteve, D. Caballero, A. Iriondo

Research output: Contribution to journalArticle

Abstract

To elucidate whether reduced-intensity conditioning (RIC) decreases treatment-related mortality (TRM) after allogeneic stem cell transplantation (allo-SCT) for chronic lymphocytic leukemia (CLL), we retrospectively compared 73 RIC cases from a recent EBMT survey with 82 patients from the EBMT database who had undergone standard myeloablative conditioning (MC) for CLL during the same time period. The two populations were matched by adjusting the primary risk factor, the conditioning regimen, in a series of Cox models for age, sex, donor type, remission status at transplant and analyzed for its effect on TRM, relapse incidence, event-free (EFS) and overall survival (OS). After adjustment, a significant reduction of TRM became evident for the RIC population (hazard ratio (HR) 0.4 (95% confidence interval 0.18-0.9); P = 0.03). On the other hand, RIC was associated with an increased relapse incidence (HR 2.65 (0.98-7.12); P = 0.054). There was no significant difference between RIC and MC in terms of EFS (HR 0.69 (0.38-1.25); P = 0.22) and OS (HR 0.65 (0.33-1.28); P = 0.21). We conclude that RIC appears to favorably influence TRM after allo-SCT for CLL. This observation, as well as possible detrimental effects of RIC on relapse risk, should be confirmed by prospective studies.

Original languageEnglish
Pages (from-to)1029-1033
Number of pages5
JournalLeukemia
Volume19
Issue number6
DOIs
Publication statusPublished - Jun 2005

Keywords

  • Allogeneic stem cell transplantation
  • CLL
  • Reduced-intensity conditioning
  • Treatment-related mortality

ASJC Scopus subject areas

  • Hematology
  • Cancer Research

Fingerprint Dive into the research topics of 'Reduced-intensity conditioning lowers treatment-related mortality of allogeneic stem cell transplantation for chronic lymphocytic leukemia: A population-matched analysis'. Together they form a unique fingerprint.

  • Cite this

    Dreger, P., Brand, R., Milligan, D., Corradini, P., Finke, J., Lambertenghi Deliliers, G., Martino, R., Russell, N., van Biezen, A., Michallet, M., Niederwieser, D., Herrmann, R. P., Greinix, H., Ferrant, A., Koza, V., Vitek, A., Vindelöv, L., Ruutu, T., Remes, K., ... Iriondo, A. (2005). Reduced-intensity conditioning lowers treatment-related mortality of allogeneic stem cell transplantation for chronic lymphocytic leukemia: A population-matched analysis. Leukemia, 19(6), 1029-1033. https://doi.org/10.1038/sj.leu.2403745