Marisa Wexler, MS,  senior science writer—

The Loma Linda University Health (LLUH) Hemophilia Treatment Center has become the first clinic in California offering Hympavzi (marstacimab) for people with hemophilia B. “For the first time, patients with hemophilia B in Southern California have access to a therapy that is not just effective, but also drastically…

Ixinity (trenonacog alfa) can effectively prevent and control bleeds in young children with severe or moderately severe hemophilia B, according to data from a Phase 3/4 clinical trial. “This study showed that [Ixinity] was safe and effective as prophylaxis and for controlling bleeds in previously treated persons with…

Four years after treatment with the gene therapy Hemgenix (etranacogene dezaparvovec), most people with hemophilia B aren’t taking preventive therapies and annual bleeding rates remain substantially reduced, new data from the Phase 3 HOPE-B trial shows. CSL Behring, which markets Hemgenix, presented the results at the 18th…

For the first time in Denmark, people with hemophilia B have been treated with the gene therapy Hemgenix (etranacogene dezaparvovec), according to an announcement from CSL Behring, the company that markets the therapy. Hemgenix was cleared for use in the European Union in early 2023, following its…

Metagenomi is now working on preclinical studies to advance MGX-001, its experimental gene-editing therapy for hemophilia A, with the goal of bringing the treatment candidate into clinical trials in 2026. As part of a corporate update also noting 2024 progress, Metagenomi announced that, this year, it will be…

Clotting proteins that are missing or are defective in hemophilia can directly affect the activity of cells responsible for maintaining bone health, a study found. The findings shed new light on why bone problems are a common issue among people with hemophilia, researchers said. The study, “…

A European Medicines Agency (EMA) committee has recommended the approval of Novo Nordisk’s concizumab as a prophylactic, or preventive, treatment for adults and children, ages 12 and older, with hemophilia A or B who have inhibitors. The recommendation, from the EMA’s Committee for Medicinal Products for Human Use…

Nearly two-thirds of children with severe hemophilia A on preventive, or prophylactic, treatment with once-weekly Altuviiio (efanesoctocog alfa) in the yearlong XTEND-Kids study were free of bleeding episodes needing treatment. More than 80% in this Phase 3 clinical trial also were free of spontaneous bleedings and joint bleeds needing…

Note: This article was updated June 26, 2024, to clarify that the analysis of fitusiran in surgery was conducted in patients receiving prophylactic treatment with the therapy. The U.S. Food and Drug Administration (FDA) is reviewing a request to approve fitusiran, an under-the-skin injection therapy, as a treatment for adults…

More than half the adults with hemophilia A in the Phase 3 GENEr8-1 clinical trial remain completely free of bleeds needing treatment, four years after a single dose of the gene therapy Roctavian (valoctocogene roxaparvovec-rvox). Also, activity levels of factor VIII (FVIII), the faulty clotting protein in hemophilia…