“People have some inability to focus on [Regeneron Pharmaceuticals Inc.’s] pipeline,” which stands as “the most prolific in the industry, I would dare to say,” CEO Leonard Schleifer remarked during the Morgan Stanley health care conference Sept. 8. Most recently, Regeneron bragged on two prospects. The ultra-rare disease fibrodysplasia ossificans progressiva (FOP) took center stage Sept. 17 with news that the phase III Optima trial testing fully human monoclonal antibody garetosmab met its primary endpoint. Separately, Regeneron provided updated analyses of the phase II Courage trial that tested new pairings of GLP-1 receptor agonist semaglutide plus the anti-GDF8/anti-myostatin compound trevogrumab, with or without garetosmab, in obesity.
As Avidity Biosciences Inc. brought the second-largest follow-on offering of the year to the market, the company also released positive early and midstage stage results of del-zota, an antibody-oligonucleotide conjugate, in treating Duchenne muscular dystrophy. Phase I/II results showed a reversal of disease progression in patients who have been continuously treated for a year, plus improvements in several functional measures.
Amid the increasingly competitive myasthenia gravis drug development space, siRNA candidate cemdisiran met phase III endpoints, with the monotherapy showing numerically higher results than a combination product. Regeneron Pharmaceuticals Inc., which has a worldwide license to cemdisiran from Alnylam Pharmaceuticals Inc., plans to file for U.S. approval in generalized myasthenia gravis, a rare and chronic autoimmune disease leading to life-threatening muscle weakness, in the first quarter of 2026.
Ribomic’s umedaptanib pegol (RBM-007) looks to have some advantages compared to competitors in the achondroplasia space, and the company plans to progress the oligonucleotide-based aptamer that targets anti fibroblast growth factor 2 to phase III trials, Ribomic’s business development head, Kihei Yamashita, told BioWorld.
Alterity Therapeutics Ltd. helped develop a new neuroimaging biomarker called the multiple system atrophy index (MSA-AI), which looks to be a more reliable biomarker for tracking disease progression of MSA. Developed using deep learning methods, the MSA-AI offers a superior, objective and quantifiable measure of brain atrophy in MSA patients.
Sarepta Therapeutics Inc.’s adventure with the Duchenne muscular dystrophy (DMD) AAV-based gene therapy Elevidys (delandistrogene moxeparvovec) continued as the firm said it would restart shipments of the compound for ambulatory patients “imminently,” with the U.S. FDA’s blessing.
Astrazeneca plc seems on the way to expanding its presence in myasthenia gravis (MG) with positive “high-level” results from a global, randomized, double-blind, placebo-controlled phase III trial with once-weekly, self-administered gefurulimab in adults with anti-acetylcholine receptor antibody-positive, generalized disease.
In an about-face, Sarepta Therapeutics Inc. said it would “voluntarily and temporarily” pause all shipments of Duchenne muscular dystrophy gene therapy Elevidys (delandistrogene moxeparvovec) in the U.S. The move comes only a few days after the firm publicly declined a U.S. FDA request to halt shipping of the therapy in the wake of a third patient death, this one linked to a gene therapy using the same adeno-associated virus (AAV) vector as Elevidys.
Sarepta Therapeutics Inc. is declining a U.S. FDA request to voluntarily halt shipping its gene therapy, Elevidys (delandistrogene moxeparvovec), in the U.S. On July 18, Sarepta said had it received “an informal request” from the FDA to stop the shipments following a third patient’s death, tied to the gene therapy SRP-9004, which uses the same vector as Elevidys.
Sarepta Therapeutics Inc. made known a third gene therapy death, this time with SRP-9004 for limb-girdle muscular dystrophy. The patient was a late-stage, non-ambulatory 51-year-old man participating in the phase I Discovery trial, who expired about a month ago of acute liver failure, as did the two previous subjects who passed away after they were treated with Elevidys (delandistrogene moxeparvovec), Cambridge, Mass.-based Sarepta’s gene product for Duchenne muscular dystrophy.
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