Pfizer Announces Positive Phase 3 Results for HYMPAVZI in Hemophilia A or B with Inhibitors, Showcasing Significant Reduction in Bleeding Rates

Reuters
06-26
Pfizer Announces Positive Phase 3 Results for HYMPAVZI in Hemophilia A or B with Inhibitors, Showcasing Significant Reduction in Bleeding Rates

Pfizer Inc. has announced positive topline results from the Phase 3 BASIS study evaluating HYMPAVZI™ (marstacimab) for adults and adolescents with hemophilia A or B with inhibitors. The study demonstrated a statistically significant and clinically meaningful reduction in annualized bleeding rate compared to on-demand treatment in patients aged 12 and older. HYMPAVZI, administered as a once-weekly subcutaneous injection, showed a generally well-tolerated safety profile. Results from the full Phase 3 dataset are currently being analyzed, with additional data to be presented at upcoming medical meetings. Pfizer intends to discuss these findings with regulatory authorities to initiate filings for HYMPAVZI's approval for use in patients with hemophilia with inhibitors.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Pfizer Inc. published the original content used to generate this news brief via Business Wire (Ref. ID: 20250626097323) on June 26, 2025, and is solely responsible for the information contained therein.

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