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Read the full Instructions for Use.

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For routine prophylaxis in patients 12 years and older with hemophilia A or B without inhibitors

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Once-weekly HYMPAVZI is the first and only subcutaneous prophylactic treatment that comes in a fixed-dose,* prefilled pen.

* Your first dose (loading dose) of HYMPAVZI is 300 mg (two 150 mg injections). Then you will inject a weekly (maintenance) dose consisting of 1 or 2 injections as prescribed by your healthcare provider. If more than one injection is required to deliver a complete dose, administer each injection at a different injection site.

Proven bleed protection with HYMPAVZI

Shown in the BASIS phase 3 study to help reduce:

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Treated bleeds

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Joint bleeds

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Target joint bleeds

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Spontaneous bleeds

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Total bleeds

compared to on-demand factor-based treatment and prophylactic factor-based treatment

In the BASIS phase 3 study, the primary objective was to measure the annualized bleed rate (ABR) of treated bleeds vs on-demand factor-based treatment and vs factor-based prophylaxis after 12 months on HYMPAVZI. 92% reduction in treated bleeds on HYMPAVZI compared with on-demand factor-based treatment (3.18 ABR vs 38.00 ABR). 35% reduction in treated bleeds on HYMPAVZI compared with routine prophylaxis treatment (5.08 ABR vs 7.85 ABR). Secondary objectives measured the ABR of treated joint bleeds, treated target joint bleeds, treated spontaneous bleeds, and total bleeds (treated and untreated). 91% reduction in joint bleeds on HYMPAVZI compared with on-demand factor-based treatment (2.83 ABR vs 32.86 ABR). 27% reduction in joint bleeds on HYMPAVZI compared with routine prophylaxis treatment (4.13 ABR vs 5.66 ABR). 92% reduction in target joint bleeds on HYMPAVZI compared with on-demand factor-based treatment (1.84 ABR vs 23.18 ABR). 25% reduction in target joint bleeds on HYMPAVZI compared with routine prophylaxis treatment (2.51 ABR vs 3.36 ABR). 92% reduction in spontaneous bleeds on HYMPAVZI compared with on-demand factor-based treatment (2.44 vs 30.93 ABR). 35% reduction in spontaneous bleeds on HYMPAVZI compared with routine prophylaxis treatment (3.78 ABR vs 5.86). 85% reduction in total bleeds on HYMPAVZI compared with on-demand factor-based treatment (7.39 ABR vs 47.76 ABR). 32% reduction in total bleeds on HYMPAVZI compared with routine prophylaxis treatment (5.97 ABR vs 8.84 ABR). Individual results may vary.

Explore the study results

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No lengthy prep

The HYMPAVZI pen comes ready to use. There's no mixing, measuring, or reconstituting required.

Meet the HYMPAVZI pen

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Savings program

You may pay as little as $0 for HYMPAVZI if you have commercial insurance and meet the eligibility requirements.

Eligibility required. Individual savings limited to $15,000 in maximum total savings per calendar year. Only for use with commercial insurance. If you are enrolled in a state or federally funded prescription insurance program, you may not use the savings card. Terms and conditions apply.

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