Five-year follow-up of lenalidomide plus rituximab as initial treatment of mantle cell lymphoma Academic Article uri icon

Overview

MeSH Major

  • Antineoplastic Combined Chemotherapy Protocols
  • Fluorodeoxyglucose F18
  • Hodgkin Disease
  • Lymphoma, Large B-Cell, Diffuse
  • Radiopharmaceuticals

abstract

  • We report 5-year follow-up of a multicenter phase 2 study of lenalidomide plus rituximab (LR) as initial treatment of mantle cell lymphoma (MCL). The regimen includes induction and maintenance with the LR doublet. Treatment was continuous until progression, with optional discontinuation after 3 years. The median age of the 38 participants was 65 years, with MCL international prognostic index scores balanced among low, intermediate, and high risk (34%, 34%, and 32%, respectively). Twenty-seven (75%) of the 36 evaluable patients completed ≥3 years of study treatment. At a median follow-up of 64 months (range, 21-78), the 3-year progression-free survival (PFS) and overall survival (OS) were 80% and 90%, respectively, with 5-year estimated PFS and OS of 64% and 77%, respectively. During maintenance, hematologic adverse events (AEs) included asymptomatic grade 3 or 4 cytopenias (42% neutropenia, 5% thrombocytopenia, 3% anemia) and mostly grade 1 or 2 infections managed in the outpatient setting (45% upper respiratory infection, 21% urinary tract infection, 13% sinusitis, 11% cellulitis, 8% pneumonia). Nonhematologic AEs, such as constitutional and inflammatory symptoms, occurred at reduced frequency and intensity compared with induction. A peripheral blood minimal residual disease (MRD) assay (clonoSEQ) showed MRD-negative complete remission in 8 of 10 subjects who had completed ≥3 years of treatment and with available samples for analysis. With longer follow-up, LR continues to demonstrate durable responses and manageable safety as initial induction and maintenance therapy for MCL (ClinicalTrials.gov NCT01472562).

publication date

  • November 8, 2018

Research

keywords

  • Academic Article

Identity

Language

  • eng

Digital Object Identifier (DOI)

  • 10.1182/blood-2018-07-859769

PubMed ID

  • 30181173

Additional Document Info

start page

  • 2016

end page

  • 2025

volume

  • 132

number

  • 19