Marisa Wexler, MS,  senior science writer—

A first adult with hemophilia B in the U.S. has been treated with commercially available Hemgenix (etranacogene dezaparvovec), a recently approved and first gene therapy for the disease, CSL Behring announced. “As part of our longtime promise to patients, CSL Behring is thrilled to mark this latest milestone…

The U.S. Food and Drug Administration (FDA) has agreed to review Medexus Pharmaceuticals’ request to approve Ixinity (trenonacog alfa) for children with hemophilia B younger than 12. Ixinity is already approved by the FDA for adults and adolescents 12 and older. The therapy is indicated for use…

People with hemophilia A who start on preventive treatment in the first years of life generally report better health-related quality of life and joint health, a study reports. “Our results indicate that delayed start of prophylaxis in an older cohort with severe [hemophilia A] can still achieve excellent bleeding…

Note: This story was updated May 8, 2023, to remove hemophilia as one of the specific indications the collaboration will focus on, as these have not yet been publicly disclosed. AstraZeneca and Sernova are teaming up for a preclinical research project that aims to develop new cell therapies…

Concizumab has been approved as a preventive treatment in Canada for hemophilia B patients ages 12 and older who are positive for factor IX inhibitors and need a routine prophylactic to prevent bleeds or reduce their frequency. This is the first approval for the daily under-the-skin injectable therapy, which…

Proteins from tardigrades — microscopic animals known for their ability to survive in extreme conditions — could be used to stabilize replacement therapies for hemophilia A, allowing treatments to be stored for longer periods of time without refrigeration, a proof-of-concept study shows. “Our work provides a proof of principle…

For children with severe hemophilia A who develop inhibitors — neutralizing antibodies that reduce the effectiveness of standard therapies — starting treatment to eliminate inhibitors earlier is associated with a higher chance of success, a recent study reports. The study, “Low-dose immune tolerance induction therapy in…

The U.S. Food and Drug Administration (FDA) is extending its review of BioMarin Pharmaceutical’s request to approve the gene therapy Roctavian (valoctocogene roxaparvovec) for adults with severe hemophilia A. A decision had been expected by the end of this month, but that date has now been…

Most children with hemophilia A given Altuviiio (efanesoctocog alfa) once a week were bleed-free throughout about a year of treatment. That’s according to top-line data from the Phase 3 XTEND-Kids trial (NCT04759131) announced by Sobi and Sanofi, the therapy’s co-developers, less than a month after…

Most people with severe hemophilia A who were given once-weekly treatment with efanesoctocog alfa in the Phase 3 XTEND-1 trial were bleed-free over a year on treatment. The therapy also improved joint and overall physical health and eased pain intensity in the participants compared with previous treatments. Results…