Outcomes in RBC transfusion-dependent patients with Low-/Intermediate-1-risk myelodysplastic syndromes with isolated deletion 5q treated with lenalidomide: A subset analysis from the MDS-004 study

Aristoteles Giagounidis, Ghulam J. Mufti, Moshe Mittelman, Guillermo Sanz, Uwe Platzbecker, Petra Muus, Dominik Selleslag, Odile Beyne-Rauzy, Peter te Boekhorst, Consuelo del Cañizo, Agnès Guerci-Bresler, Lars Nilsson, Michael Lübbert, Bruno Quesnel, Arnold Ganser, David Bowen, Brigitte Schlegelberger, Gudrun Göhring, Tommy Fu, Bouchra BenettaibEva Hellström-Lindberg, Pierre Fenaux

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: A subset analysis of the randomised, phase 3, MDS-004 study to evaluate outcomes in patients with International Prognostic Scoring System (IPSS)-defined Low-/Intermediate (Int)-1-risk myelodysplastic syndromes (MDS) with isolated del(5q). Methods: Patients received lenalidomide 10 mg/d (days 1-21; n = 47) or 5 mg/d (days 1-28; n = 43) on 28-d cycles or placebo (n = 45). From the placebo and lenalidomide 5 mg groups, 84% and 58% of patients, respectively, crossed over to lenalidomide 5 or 10 mg at 16 wk, respectively. Results: Rates of red blood cell-transfusion independence (RBC-TI) ≥182 d were higher in the lenalidomide 10 mg (57.4%; P < 0.0001) and 5 mg (37.2%; P = 0.0001) groups vs. placebo (2.2%). Cytogenetic response rates (major + minor responses) were 56.8% (P < 0.0001), 23.1% (P = 0.0299) and 0%, respectively. Two-year cumulative risk of acute myeloid leukaemia progression was 12.6%, 17.4% and 16.7% in the lenalidomide 10 mg, 5 mg, and placebo groups, respectively. In a 6-month landmark analysis, overall survival was longer in lenalidomide-treated patients with RBC-TI ≥182 d vs. non-responders (P = 0.0072). The most common grade 3-4 adverse event was myelosuppression. Conclusions: These data support the clinical benefits and acceptable safety profile of lenalidomide in transfusion-dependent patients with IPSS-defined Low-/Int-1-risk MDS with isolated del(5q).

Original languageEnglish
Pages (from-to)429-438
Number of pages10
JournalEuropean Journal of Haematology
Volume93
Issue number5
DOIs
StatePublished - 1 Nov 2014
Externally publishedYes

Keywords

  • Acute myeloid leukaemia
  • Del(5q)
  • Lenalidomide
  • Myelodysplastic syndromes
  • Transfusion independence

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