A network meta-analysis of randomized clinical trials in lenalidomide-exposed or -refractory multiple myeloma

E A Martino1, G Caridà2, D Lofaro3

  • 1Hematology Unit, Department of Onco-Hematology, AO of Cosenza, Cosenza, Italy.

ESMO Open
|July 16, 2025
PubMed
Abstract

Insights

Belantamab mafodotin, bortezomib, and dexamethasone (BVd) is the most effective lenalidomide-free regimen for relapsed/refractory multiple myeloma (RRMM) patients. This finding supports BVd as a preferred second-line treatment option.

Area of Science:

  • Hematology
  • Oncology
  • Clinical Trials

Background:

  • Relapsed/refractory multiple myeloma (RRMM) treatment is evolving, especially for lenalidomide-exposed or refractory patients.
  • Evaluating lenalidomide-free regimens is crucial for optimizing second-line treatment strategies.
  • Network meta-analysis provides a robust framework for comparing diverse therapeutic options.

Purpose of the Study:

  • To conduct an updated network meta-analysis of phase II/III randomized controlled trials.
  • To evaluate the relative efficacy of lenalidomide-free regimens in relapsed/refractory multiple myeloma.
  • To identify the most effective second-line treatment options for patients refractory to lenalidomide.

Main Methods:

  • Systematic literature search identifying eight eligible randomized controlled trials.
  • Inclusion of 3952 patients in the meta-analysis.
  • Bayesian and frequentist approaches used to analyze progression-free survival (PFS) as the primary outcome.

Main Results:

  • The belantamab mafodotin, bortezomib, and dexamethasone (BVd) combination demonstrated the highest surface under the cumulative ranking curve for PFS.
  • BVd proved most effective for both lenalidomide-exposed and lenalidomide-refractory multiple myeloma patients at first relapse.
  • BVd outperformed other triplet regimens, including daratumumab-based, isatuximab-based, and pomalidomide-based combinations.

Conclusions:

  • BVd is identified as a preferred second-line treatment for RRMM patients, particularly those refractory to lenalidomide.
  • Emerging therapies like CAR-T-cell therapy and bispecific antibodies will significantly impact future RRMM treatment paradigms.
  • Further research should focus on optimizing treatment sequencing and evaluating novel agents in earlier disease stages.