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Original Articles: Clinical

Relapsed chronic lymphocytic leukemia retreated with rituximab: interim results of the PERLE study

, , , , , , , , , , , , , , , , & show all
Pages 1366-1375 | Received 12 Apr 2016, Accepted 22 Sep 2016, Published online: 09 Feb 2017
 

Abstract

This prospective non-interventional study assessed the management of relapsed/refractory CLL after one or two treatments with rituximab, and retreatment with a rituximab-based regimen. An interim analysis was performed at the end of the induction period in 192 evaluable patients. Median age was 72 years [35–89], first relapse (55%), and second relapse (45%). Rituximab administered during first (68%), second (92%), or both treatment lines (20%). R-bendamustine administered in 56% of patients, R-purine analogs (21%), and R-alkylating agents (19%). The overall response rate (ORR) was 74.6%, in favor of R-purine analogs (90%), R-bendamustine (75%), and R-alkylating agents (69%). Lower ORR in Del 17p patients (43%) and third time rituximab (31%). Most frequent adverse events were hematological (23% patients) including neutropenia (11%) and infections (12%); grade 3/4 AEs (23% patients), mainly hematological (18%); death during induction treatment (7%). This first large study focusing on relapsed/refractory CLL patients retreated with rituximab-based regimens is still ongoing.

Acknowledgements

The authors are grateful to the physicians, patients and their families who participated in this study. The authors would like to thank the study project team (Lise Mercati, Aurélie Guyot) and Eltium for the support received in writing and editing this article.

Potential conflict of interest

Disclosure forms provided by the authors are available with the full text of this article at http://dx.doi.org/10.1080/10428194.2016.1243673.

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