Clinical activity of a new regimen combining gemcitabine and alemtuzumab in high-risk relapsed/refractory chronic lymphocytic leukemia patients

Eur J Haematol. 2015 Jan;94(1):37-42. doi: 10.1111/ejh.12391. Epub 2014 Sep 17.

Abstract

Optimal treatment strategies are lacking in relapsed/refractory (R/R) chronic lymphocytic leukemia (CLL). Gemcitabine has shown activity and acceptable safety profile in B-cell lymphomas. We present a retrospective case review of gemcitabine and alemtuzumab, every 21 d (for up to six courses) in 27 community-based patients with high-risk R/R CLL. Median age was 70 yr (44-83 yr), 55% patients had Binet stage C, deletion 17p (del(17p)) and/or deletion 11q (del(11q)) were found in 65% and 27%, bulky disease in 55.5%, and fludarabine-refractoriness in 48% of cases, respectively. Overall response rate was 63% (29.6% clinical CR and 33.4% PR). At a median follow-up of 31 months, median PFS and OS were 15.4 and 24 months. In multivariate analysis, median OS is influenced by prior lines of treatment = 3 and bulky disease. Combination of alemtuzumab and gemcitabine appears to be an active, easy to administrate treatment in routine practice, high-risk R/R CLL patients.

Keywords: alemtuzumab; chronic lymphocytic leukemia; fludarabine-refractory; gemcitabine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Alemtuzumab
  • Antibodies, Monoclonal, Humanized / administration & dosage
  • Antineoplastic Combined Chemotherapy Protocols / adverse effects
  • Antineoplastic Combined Chemotherapy Protocols / therapeutic use*
  • Deoxycytidine / administration & dosage
  • Deoxycytidine / analogs & derivatives
  • Female
  • Gemcitabine
  • Humans
  • Leukemia, Lymphocytic, Chronic, B-Cell / drug therapy*
  • Leukemia, Lymphocytic, Chronic, B-Cell / mortality
  • Leukemia, Lymphocytic, Chronic, B-Cell / pathology*
  • Male
  • Middle Aged
  • Neoplasm Staging
  • Recurrence
  • Treatment Outcome

Substances

  • Antibodies, Monoclonal, Humanized
  • Deoxycytidine
  • Alemtuzumab
  • Gemcitabine