Marta Figueiredo, PhD, science writer —

AMT-061 (etranacogene dezaparvovec), uniQure‘s investigational gene therapy for hemophilia B, is safe and effective — even in patients with pre-existing antibodies against the treatment’s viral carrier, according to new trial data. Data from the Phase 3 HOPE-B trial suggest that nearly all hemophilia B patients, regardless of pre-existing viral…

The first participant has been dosed in a Phase 3 clinical trial testing marzeptacog alfa activated (MarzAA), an experimental under-the-skin therapy for hemophilia A and B patients with inhibitors. The study, called Crimson-1 (NCT04489537) and sponsored by the therapy’s developer, Catalyst Biosciences, is currently recruiting patients at…

CSL Behring has closed an agreement giving it global commercialization and licensing rights to AMT-061, an experimental gene therapy for hemophilia B now being tested in a Phase 3 clinical trial. The therapy’s developer, uniQure, will receive an upfront cash payment of $450 million from CSL…

Bayer’s Jivi safely and effectively prevents bleeds during and after minor surgery in children, adolescents, and adults with severe hemophilia A, according to interim data from the Phase 2/3 PROTECT VIII and the Phase 3 PROTECT VIII Kids clinical trials. Most of the included patients were on…

Hemophilia A patients with factor VIII (FVIII) inhibitors show deficiencies in regulatory B- and T-cells — immune cells that typically dampen immune and inflammatory responses — but their levels can be restored with successful immune tolerance induction (ITI), a study shows. These findings shed light on how ITI — given…

The U.S. Food and Drug Administration (FDA) has lifted its clinical hold on uniQure’s gene therapy program for hemophilia B, which includes AMT-061 (etranacogene dezaparvovec), the company announced. According to uniQure, the FDA found it was “very unlikely” that AMT-061 had contributed to a case of liver cancer in a patient who…

Long-term treatment with Jivi safely and effectively reduced the number of bleeding episodes in adolescents and adults with severe hemophilia A, according to up to seven years of data from the Phase 2/3 PROTECT VIII trial and its extension study. The new data confirmed the previous findings from…

Continuous into-the-vein (intravenous) infusions of Advate immediately before and after major orthopedic surgery is as safe and effective as standard, short, bolus infusions at preventing bleeds in men with moderate-to-severe hemophilia A. That finding from a Phase 3/4 clinical trial — the first controlled trial to compare the two types…

AMT-061 (etranacogene dezaparvovec), uniQure’s investigational gene therapy for hemophilia B, likely did not cause the case of hepatocellular carcinoma (HCC) — a form of liver cancer — that led to the program’s clinical hold in December 2020, an investigation has found. The U.S. Food and Drug Administration (FDA) had put the AMT-061…

Mild-to-moderate hemophilia has a significant impact on the physical and psychosocial health, and life quality, of both men and women, according to a recent study. Findings also highlighted the unmet needs of these patient groups, supporting better guidelines and quality of care for people with mild-to-moderate disease, its researchers…