Alpha-1 antitrypsin deficiency (AATD) is a monogenic disease caused by mutations in the SERPINA1 gene, which encodes alpha-1 antitrypsin (AAT), a serine protease inhibitor mainly produced by hepatocytes.
Although more and more gene therapies are getting the FDA stamp of approval, concerns persist about their potential long-term risks. U.S. lawmakers have proposed several pieces of legislation over the past few years to address some of the uncertainties. Now the Congressional Research Service (CRS) is suggesting other requirements Congress may want to consider to improve the regulatory landscape for gene therapies, especially those intended to treat blood disorders.
Crispr Therapeutics AG has expanded its in vivo pipeline with two new programs, which utilize lipid nanoparticle (LNP)-based delivery of CRISPR/Cas9 gene-editing cargo to the liver.
The European Commission approved two therapies for progressive, genetic diseases: Biogen Inc.’s Friedreich’s ataxia drug, Skyclarys (omaveloxolone), and Crispr Therapeutics AG’s CRISPR/Cas9 gene therapy for sickle cell disease and transfusion-dependent beta-thalassemia, Casgevy (exagamglogene autotemcel, exa-cel).
In keeping with federal standards for classifying race and ethnicity data, the U.S. FDA issued a draft revision to broaden its 2016 guidance on the collection of such data in clinical trials.
Both the U.K. MHRA and the U.S. FDA approved their first CRISPR-based gene therapy in 2023. Crispr Therapeutics AG and partner Vertex Pharmaceuticals Inc.’s Casgevy (exagamglogene autotemcel, exa-cel) was approved by the MHRA in November and the FDA on Dec. 8. The U.K. approval is for both severe sickle cell disease (SCD) and transfusion-dependent thalassemia (TDT). In the U.S., the approval is for severe SCD, with a PDUFA date for TDT coming up in spring 2024.
Both Vertex Pharmaceuticals Inc.’s Casgevy (exagamglogene autotemcel, exa-cel) and Bluebird Bio Inc.’s Lyfgenia (lovotibeglogene autotemcel, lovo-cel) received U.S. FDA approval Dec. 8, providing 16,000 American sickle cell patients who have recurring vaso-occlusive events with access to the first cell-based gene therapies.
With a landmark U.K. approval in hand for Casgevy (exagamglogene autotemcel [exa-cel]) to treat sickle cell disease and transfusion-dependent beta thalassemia, Crispr Therapeutics AG and partner Vertex Therapeutics Inc. are turning their attention to the PDUFA dates set by the U.S. FDA for the treatment in both conditions.
The outcomes from two investigational CRISPR-based therapies were presented by researchers from Crispr Therapeutics at the recent American Heart Association’s scientific sessions.
Had it been asked to, the FDA’s Cellular, Tissue and Gene Therapies Advisory Committee would have voted Oct. 31 to recommend approval of Vertex Pharmaceutical Inc. and Crispr Therapeutics AG’s exagamglogene autotemcel, or exa-cel, as a one-time transformative treatment for severe sickle cell disease in individuals 12 and older.
