Marstacimab: First Approval

Declarations

Funding The preparation of this review was not supported by any external funding.

Authorship and Conflict of interest During the peer review process the manufacturer of the agent under review was offered an opportunity to comment on the article. Changes resulting from any comments received were made by the authors on the basis of scientific completeness and accuracy. Yvette N. Lamb is a contracted employee of Adis International Ltd/Springer Nature, and declares no relevant conflicts of interest. All authors contributed to the review and are responsible for the article content.

Ethics approval, Consent to participate, Consent to publish, Availability of data and material, Code availability not applicable

Additional information about this Adis Drug Review can be found here.

Abstract 

Marstacimab (marstacimab-hncq; HYMPAVZI™) is a subcutaneously administered human monoclonal immunoglobulin G1 antibody against tissue factor pathway inhibitor (TFPI) that is being developed by Pfizer for the treatment of hemophilia A and B. Marstacimab received its first approval on 11 October 2024 in the USA. It was approved for use as routine prophylaxis to prevent or reduce the frequency of bleeding episodes in adult and pediatric patients 12 years of age and older with hemophilia A without factor VIII inhibitors or hemophilia B without factor IX inhibitors. Marstacimab has since been approved on 18 Nov in the EU for the treatment of adults and adolescents with severe hemophilia A or B without inhibitors. This article summarizes the milestones in the development of marstacimab leading to this first approval for hemophilia.  

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