News

BioMarin Pharmaceutical has resubmitted an application to the U.S. Food and Drug Administration (FDA) seeking approval of Roctavian (valoctocogene roxaparvovec), potentially the first gene therapy for adults with severe hemophilia A. The FDA delayed the company’s initial approval request in 2019, with the agency requiring two more…

COVID-19 vaccines, because they work to stimulate the immune system, may be an emerging cause of autoimmune conditions like acquired hemophilia A, according to a case report. “This report aims to highlight the risk of … [acquired hemophilia A] following an immune stimulus, thus improving our knowledge regarding possible…

A significant proportion of bleeds in people with hemophilia A are left untreated, according to an analysis of data from an observational study. Because only treated bleeds are typically reported in clinical trials, these findings suggested the full disease burden is not adequately captured in many studies. As such,…

Men with moderate-to-severe hemophilia A are again being enrolled in the Phase 3 AFFINE trial, which is testing the safety and effectiveness of SB-525 (giroctocogene fitelparvovec), an experimental gene therapy being developed by Pfizer and Sangamo Therapeutics. Pfizer, the study’s sponsor, had placed a voluntary pause…

Treatment with marstacimab (PF-06741086), an experimental antibody-based therapy developed by Pfizer, reduced the number of bleeds in patients with severe hemophilia who took part in a Phase 1b/2 clinical study. This held true regardless of whether patients had hemophilia A or hemophilia B, or had inhibitors…

If approved for hemophilia A, the one-time gene therapy Roctavian (valoctocogene roxaparvovec) would provide substantial cost savings per patient compared with other preventive treatments, specifically Hemlibra. That’s according to a draft evidence report issued by pricing watchdog the Institute for Clinical and Economic Review (ICER). An independent non-profit…

The U.S. Food and Drug Administration (FDA) has granted orphan drug status to SerpinPC for treating hemophilia B. Orphan drug status is awarded to therapeutics intended to treat rare conditions, defined as those affecting fewer than 200,000 people in the U.S. The designation provides financial incentives to support clinical…

A participant in a Phase 3 clinical trial evaluating Roctavian (valoctocogene roxaparvovec), a gene therapy for hemophilia A, has been diagnosed with leukemia. A genetic assessment of the case, conducted by the therapy’s developer, BioMarin Pharmaceutical, suggested the cancer diagnosis was not linked to Roctavian. Details of…

Hemophilia A patients who develop inhibitors — neutralizing antibodies made by immune cells against clotting factors — have more expression, or activity, of genes involved in activating the immune system, a small study reports. “The results of our study reveal that there is an upregulation of genes involved with…

Switching to Hemlibra (emicizumab) was safe and effective in children with hemophilia A, including in those who had been minimally treated before or who had not been treated at all, a real-world study reported. Researchers noted that studies involving a larger number of patients are still warranted to…