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Pfizer’s ELREXFIO Outperforms Standard Regimens and Meets Primary Endpoint in Phase 3 Study in Relapsed or Refractory Multiple Myeloma

$PFEPress releaseOct 27, 2026, 6:45 AM ETRead the release

Pfizer's Phase 3 MagnetisMM-32 trial met its primary endpoint, with ELREXFIO (elranatamab) monotherapy showing a statistically significant and clinically meaningful progression-free survival benefit versus investigator's choice of three standard regimens in relapsed/refractory multiple myeloma after anti-CD38 therapy and lenalidomide. Median PFS was not yet reached, with more than 75% of patients progression-free at analysis and an estimated 68% PFS at 18 months; the safety profile was consistent with the known label with no new safety signals.

Key figures

Drug Name
ELREXFIO (elranatamab)
Phase Of Trial
Phase 3
Countries
26
Enrolled patients
523
Estimated pfs 18 months
68%
Grade5 infections control
1.6%
Grade5 infections elrexfio
0.8%
Grade3plus infections control
18.1%
Grade3plus infections elrexfio
27.5%
Patients progression free at analysis
>75%

AI analysis

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    PFE: Pfizer’s ELREXFIO Outperforms Standard Regimens and Meets Primary Endpoint in Phase 3 Study in Relapsed or Refractory Multiple Myeloma — AI Analysis | Signal8