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HomeMechanism of ActionEfficacySafetyDosingClinical ExperienceHow HYMPAVZI WorksHow HYMPAVZI WorksHYMPAVZI OverviewHow HYMPAVZI WorksEfficacyEfficacyStudy DesignPrimary EndpointLong-term ProtectionSecondary EndpointsSafetySafetyAdverse EventsSafetyDosingDosingDosing OverviewMeet the HYMPAVZI PenInjection OverviewWhy HYMPAVZIWhy HYMPAVZIAddresing Patient NeedsWhy HYMPAVZIResourcesResourcesMaterialsVideos

Click here for HYMPAVZI®▼ (marstacimab) Prescribing Information.

Clinical Experience with HYMPAVZI
Watch this video to learn about the first patient in the UK to be prescribed HYMPAVZI. Dr. Jireh Ann-Batac discusses the patient's treatment history, key considerations for switching therapies, relevant medical background and the patient's transition from factor replacement therapy to HYMPAVZI.

This is a guide intended for UK Health Care professionals, to understand how HYMPAVZI promotes haemostasis.
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How HYMPAVZI Works: HCP Mechanism of Action leaflet

This is a guide intended for UK healthcare professionals to understand how HYMPAVZI promotes haemostasis.
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DownloadLoading Pre-filled fixed dose pen. Once-weekly dosing1

Understand the HYMPAVZI dosing schedule and how HYMPAVZI can be administered.​​​​

DosingLoading The efficacy of HYMPAVZI was evaluated in the BASIS study

Learn more about HYMPAVZI efficacy.

EfficacyLoadingReferences:
1. HYMPAVZI (marstacimab) Summary of Product Characteristics.
PP-HYM-GBR-0284. January 2026

Adverse events should be reported. Reporting forms and information can be found at https://yellowcard.mhra.gov.uk or search 

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Adverse events should also be reported to Pfizer Medical Information on 01304 616161

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