With the U.S. FDA approval of Attruby (acoramidis) for transthyretin amyloidosis with cardiomyopathy (ATTR-CM), Bridgebio Pharma Inc. is taking on an industry giant. The next-generation, oral, small-molecule stabilizer of transthyretin will take on Pfizer Inc.’s Vyndamax (tafamidis, Vyndaqel), a TTR stabilizer approved in 2019 for ATTR-CM but expected to lose exclusivity in late 2028. The approval was based on a phase III study that showed Attruby significantly reduced death and cardiovascular-related hospitalizations. The NDA, which had a Nov. 29 PDUFA date, was approved Nov. 22.
Any skepticism that might have been lingering in the wake of Alnylam Pharmaceuticals Inc.’s February decision to tweak the analysis plan for the Helios-B trial testing vutrisiran in transthyretin amyloidosis with cardiomyopathy appeared to dissipate as the company reported top-line data showing the study met the primary and all secondary endpoints.
Armed with strong phase III safety data in Japanese patients, Palo Alto, Calif.-based Bridgebio Pharma Inc. is planning to file for Japan approval of its investigational drug acoramidis for a rare heart disorder.
Armed with strong phase III safety data in Japanese patients, Palo Alto, Calif.-based Bridgebio Pharma Inc. is planning to file for Japan approval of its investigational drug acoramidis for a rare heart disorder.
Following an unexpected FDA complete response letter (CRL), Alnylam Pharmaceuticals Inc. said it will no longer pursue an expanded indication for Onpattro (patisiran) in the U.S. The RNAi therapeutic was approved in 2018 to treat polyneuropathy of hereditary transthyretin-mediated (ATTR) amyloidosis and seemed well on its way to snagging a second U.S. indication after the FDA’s Cardiovascular and Renal Drugs Advisory Committee voted 9-3 in September that the drug’s benefits outweighed its risks as a treatment for cardiomyopathy of ATTR amyloidosis. The FDA disagreed with the committee, saying in the CRL that patisiran’s clinical meaningfulness had not been established in the proposed indication.
While the 12-month data from Bridgebio Pharma Inc.’s phase III ATTRibute-CM study testing acoramidis in transthyretin amyloid cardiomyopathy were deemed “puzzling” in late 2021, the 30-month results reported July 17 proved far more pleasing to investors. The trial hit all its endpoints and showed promising results on exploratory markers, sending company shares (NASDAQ:BBIO) up 76%, to close at $32.04, up $13.82.
Although Pfizer Inc. has the only drugs approved in the U.S. to treat a rare, progressive heart disease, the U.S. Court of Appeals for the Second Circuit agreed this week with the Department of Health and Human Services, and a lower court, that Pfizer’s proposed copay assistance program for middle-income Americans covered by Medicare would violate the federal Anti-Kickback Statute – even if the company has no “corrupt” intent.
