After a phase III stumble, Acadia Pharmaceuticals Inc. will drop development of ACP-101, intranasal carbetocin, to treat hyperphagia in patients with the rare genetic disorder Prader-Willi syndrome. Top-line data from the 12-week, double-blind, randomized phase III study missed its primary endpoint by not producing a statistically significant improvement over placebo.
Pfizer Inc. bounced back in a big way from a GLP-1 trip-up this spring by making known its plan to take over what Metsera Inc. CEO Whit Bernard has called the “scale-obsessed” obesity player that he steers. Pfizer has agreed to pay $47.50 each for all of Metsera’s outstanding shares.
MBX Biosciences Inc. posted positive top-line phase II study data in treating chronic hypoparathyroidism, positioning itself to take on a U.S. FDA-approved therapy for the rare endocrine disease. MBX’s Avail study of canvuparatide hit its primary endpoint in treating adults, demonstrating statistical significance at week 12 and positive six-month results from the open-label extension study. MBX said it is poised to begin a phase III study of once-weekly canvuparatide next year.
Beijing QL Biopharmaceutical Co. Ltd.’s once-monthly GLP-1 receptor agonist, zovaglutide (ZT-002), met its primary and secondary endpoints in a phase II obesity trial, and QL Biopharm will now advance the GLP-1 to a pivotal phase III study.
The dash for MASH is gaining momentum, with Roche AG acquiring 89bio Inc. and its phase III FGF21 analogue, pegozafermin, for treating metabolic dysfunction-associated steatohepatitis, in a deal worth up to $3.5 billion. The Swiss pharma is to pay $14.50 per share, valuing San Francisco-based 89Bio at $2.4 billion, a premium of approximately 52% to 89bio’s 60-day average price on Sept. 17, 2025. Shares of 89bio (NASDAQ:ETNB) gained $6.88, or 85%, to close Sept. 18 at $14.96.
“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.
Although cagrilintide from Novo Nordisk A/S proved less than impressive when paired with GLP-1 agonist semaglutide in a single drug known as Cagrisema, the dual long-acting amylin analogue and calcitonin receptor agonist is looking good as a monotherapy in a subanalysis of the phase III Redefine-1 trial.
Maze Therapeutics Inc. CEO Jason Coloma said the latest phase I results with MZE-782, a prospect for phenylketonuria (PKU) as well as chronic kidney disease (CKD), bolster the firm’s “conviction to move into phase II” next year in both indications.
The U.S. FDA issued a complete response letter (CRL) for the NDA to privately held Saol Therapeutics Inc.’s rare disease treatment, sodium dichloroacetate (SL-1009), for pyruvate dehydrogenase complex deficiency. The inhibitor of pyruvate dehydrogenase kinases is the only drug in development for treating the rare genetic disorder, according to Cortellis. There are no FDA-approved treatments for the disease.
A recent paper in the Journal of Clinical Medicine quantified some of the potential bodily ravages ahead for patients with hypoparathyroidism (hypoPT), specifically the loss of kidney function, with the risk of chronic kidney disease going up every year by 11%. A handful of drug developers continue to advance prospects in hypoPT, where Ascendis Pharma A/S’ hormone replacement therapy Yorvipath (palopegteriparatide) – the first and only treatment for adults with the rare endocrine disease – has set the bar for efficacy.