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European Commission Approves Pfizer’s HYMPAVZI for the Treatment of Adults and Adolescents with Hemophilia A or B With Inhibitors

$PFEPress releaseMay 13, 2026, 6:45 AM ETRead the release

The European Commission has approved Pfizer's HYMPAVZI for the treatment of adults and adolescents 12 years and older with hemophilia A or B with inhibitors. The approval is based on Phase 3 data from the BASIS trial, which demonstrated a 93% reduction in the mean treated annualized bleeding rate compared to on-demand therapy. HYMPAVZI is the only once-weekly subcutaneous treatment approved in the EU for both hemophilia A and B patients with inhibitors, offering a significant improvement in treatment options.

Key figures

Drug Name
HYMPAVZI (marstacimab)
Phase Of Trial
Phase 3

AI analysis

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    PFE: European Commission Approves Pfizer’s HYMPAVZI for the Treatment of Adults and Adolescents with Hemophilia A or B With Inhibitors — AI Analysis | Signal8