For routine prophylaxis in adults and children ages 6 years and older with hemophilia A or B, with or without inhibitors

Only HYMPAVZI is a once-weekly, fixed-dose† pen that delivers proven bleed protection* and demonstrated safety‡

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A set dose comes in each pen, so you don't need to mix or measure

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Once-weekly dosing designed to fit into your schedule

Injected under the skin, not into a vein

Why HYMPAVZI

*In the phase 3 BASIS study, the primary objective was to measure the annualized bleed rate (ABR) of treated bleeds vs on-demand factor-based treatment without inhibitors, vs factor-based prophylaxis without inhibitors, and vs on-demand bypass treatment with inhibitors after 12 months on HYMPAVZI. 92% reduction in treated bleeds on HYMPAVZI compared with on-demand factor-based treatment without inhibitors (3.2 ABR vs 39.9 ABR). 35% reduction in treated bleeds on HYMPAVZI compared with routine prophylaxis treatment without inhibitors (5.1 ABR vs 7.9 ABR). 93% reduction in treated bleeds on HYMPAVZI compared with on-demand bypass treatment with inhibitors (1.4 ABR vs 19.8 ABR). In the phase 3 BASIS KIDS study, the primary objective was to measure the ABR of treated bleeds in patients with and without inhibitors for 12 months on HYMPAVZI. Patients ages 6 to less than 18 without inhibitors taking HYMPAVZI had an ABR of 1.8 (compared with an estimated ABR of 3.6, based on past bleeding history). Patients ages 6 to less than 18 with inhibitors previously on on-demand treatment taking HYMPAVZI had an ABR of 1.4 (compared with an estimated ABR of 18.9, based on past bleeding history with an on-demand bypassing agent). Individual results may vary.

†HYMPAVZI is available in 75 mg and 150 mg pens. For children ages 6 to less than 12, the first dose (loading dose) is 150 mg on day 1. Then a weekly (maintenance) dose of 75 mg as prescribed by your healthcare provider. For adults and adolescents 12+, the first dose (loading dose) is 300 mg on day 1. Then a weekly (maintenance) dose of 150 mg as prescribed by your healthcare provider. If more than 1 injection is required to deliver a complete dose, administer each injection at a different site.

‡In the BASIS and BASIS KIDS studies, the most common adverse reactions included injection site reactions, headache, pyrexia, arthralgia, diarrhea, pruritus, and rash.

Bleed protection with HYMPAVZI

Treated bleeds

Joint bleeds

Target joint bleeds

Spontaneous bleeds

Total bleeds

HYMPAVZI has been studied in 2 clinical trials. See study results.

Meet Peter, a hemophilia A patient taking HYMPAVZI

I think the once-a-week, subcutaneous dosing is definitely better for me... These innovations mean I can concentrate on what matters to me.

Hear from a real patient

"25+ YEARS,” Pfizer logo, and text stating HYMPAVZI® (marstacimab-hncq) is the latest hemophilia therapy from Pfizer. See safety info.

"25+ YEARS,” Pfizer logo, and text stating HYMPAVZI® (marstacimab-hncq) is the latest hemophilia therapy from Pfizer. See safety info.