Arrowhead Pharmaceuticals Inc. won U.S. FDA approval of plozasiran in familial chylomicronemia syndrome (FCS), the second drug to gain clearance for use in the rare genetic disease following the late 2024 nod for Ionis Pharmaceuticals Inc.’s Tryngolza (olezarsen), setting up a battle in the marketplace even as the firms wage a patent dispute regarding the two RNA-based therapies.

Pfizer Inc. emerged over the weekend as the winner of the bidding war for Metsera Inc., with the two reaching an amended agreement after market close Nov. 7 that values the obesity drugmaker at about $10 billion. The next day, the other contender, Novo Nordisk A/S, confirmed it does not intend to increase its most recent offer.

Centessa Pharmaceuticals plc’s unremarkable third-quarter 2025 earnings report was greatly overshadowed by an early readout from its orexin receptor 2 (OX2R) agonist program in narcolepsy, particularly promising phase IIa data demonstrating ORX-750’s efficacy across a group of sleep disorders, though investors seek further data to differentiate Centessa’s program from potential competitors such as Takeda Pharmaceutical Co. Ltd.’s oveporexton and Alkermes plc’s alixorexton.

Only two days after Bridgebio Pharma Inc. impressed investors with data from BBP-418 in limb-girdle muscular dystrophy type 2I/R9, the company was back at it again, this time reporting positive top-line results from its global phase III study of encaleret in autosomal dominant hypocalcemia type 1, a genetic form of hypoparathyroidism.

Much-awaited detailed data from Exelixis Inc.’s phase III Stellar-303 study of zanzalintinib, presented at the European Society for Medical Oncology meeting, showed the third-generation, oral tyrosine kinase inhibitor in combination with Tecentriq (atezolizumab, Roche AG) reduced the risk of death by 20% vs. Stivarga (regorafenib, Bayer AG) in patients with previously treated non-microsatellite instability (MSI)-high metastatic colorectal cancer and are expected to pave the way for an NDA filing later this year.

The U.S. FDA named the first nine recipients of the recently unveiled commissioner’s national priority voucher (CNPV) program aimed at addressing unmet public health needs by shortening regulatory review times to as little as one to two months. For one of those firms, Disc Medicine Inc., which submitted an NDA for bitopertin for rare genetic disorder erythropoietic protoporphyria in September, that could mean a potential approval before the end of 2025.

Touting a science-driven, regenerative medicine-based treatment for hair loss “designed for the 21st century,” Pelage Pharmaceuticals Inc. drew a solid group of investors to the table in an oversubscribed $120 million series B round to fund an upcoming phase III program for PP-405, a topical small molecule targeting hair follicle stem cells.

More than a decade after the last idiopathic pulmonary fibrosis (IPF) treatment gained U.S. FDA approval, Boehringer Ingelheim GmbH’s Jascayd (nerandomilast) is set to hit the market following the agency’s green light on Oct. 7. While expected to offer a modest benefit over existing therapies, Jascayd, an orally administered preferential inhibitor of phosphodiesterase 4B with breakthrough therapy status, is viewed by analysts as the first of several potential advancements in the IPF space over the next few years.

A top-line readout of the 26-week phase IIa Cbeyond trial showed nimacimab, Skye Bioscience Inc.’s peripherally restricted CB1 inhibitor antibody for weight loss, fell short of statistical significance as a monotherapy vs. placebo on the primary endpoint of weight loss, sending the company’s shares down 60%. Skye executives, however, offered a more optimistic outlook for the findings, which they said provide clear direction for moving forward.