New Therapies on the Horizon for Relapsed Refractory Multiple Myeloma

Nadine Abdallah1, Shaji K Kumar1

  • 1Division of Hematology, Mayo Clinic, 200 First Street Southwest, Rochester, MN 55905, USA.

Insights

Novel therapies like venetoclax, iberdomide, mezigdomide, and modakafusp alfa show promise for relapsed multiple myeloma (MM). These agents offer new treatment options for patients with refractory disease.

Area of Science:

  • Hematology
  • Oncology
  • Pharmacology

Background:

  • Multiple myeloma (MM) frequently relapses despite advancements in treatment.
  • There is a critical need for effective therapies for patients with relapsed or refractory MM.

Purpose of the Study:

  • To review novel therapeutic agents for relapsed and refractory multiple myeloma.
  • To highlight the mechanisms of action and early clinical trial findings of these agents.

Main Methods:

  • Review of early-phase clinical trial data for novel MM agents.
  • Summary of drug mechanisms, including B-cell lymphoma 2 (Bcl-2) inhibition, cereblon E3 ligase modulation, and immunocytokine therapy.

Main Results:

  • Venetoclax demonstrates activity in MM patients with specific genetic markers (t(11;14) and/or Bcl-2 expression).
  • Iberdomide and mezigdomide show enhanced potency and activity in heavily pretreated patients compared to existing therapies.
  • Modakafusp alfa exhibits single-agent activity in relapsed/refractory MM.

Conclusions:

  • Several novel agents are emerging as promising treatments for relapsed/refractory multiple myeloma.
  • These agents offer new therapeutic avenues targeting distinct molecular pathways in MM.

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