Rare diseases
A lawsuit and FDA warning ensued after Hims & Hers launched a compounded version of Novo Nordisk’s new obesity pill, more Big Pharma report earnings—including from weight loss rivals Novo and Eli Lilly—and the gene therapy space sees another rejection.
The FDA recommended that REGENXBIO run a new study, treat more patients and include a placebo arm to support a resubmission for the gene therapy RGX-121.
The gene therapy uses an AAV vector to restore healthy levels of the alpha-galactosidase enzyme, which is rendered dysfunctional in patients with Fabry disease, leading to the toxic build-up of lipids in cells.
The FDA in July last year declined to approve UX111 for Sanfilippo syndrome, a rare neurodegenerative disorder, citing manufacturing issues. Ultragenyx resubmitted its application ten days ago, expecting a six month review time.
After a series of deaths in patients taking Sarepta Therapeutics’ gene therapies, doubt has crept into investor sentiments around the long-time Wall Street darling, and patients may soon begin looking elsewhere.
After review, Amgen is certain that Tavneos is effective and has a favorable benefit-risk profile. The company informed the FDA on January 28 that they would not pull the drug.
Pfizer announces the first data from its Metsera-acquired pipeline just ahead of its earnings call, where analysts pressed execs for more details; Merck and Roche also released Q4 and full year earnings, with Eli Lilly, Novo Nordisk and others reporting Wednesday; REGENXBIO hits a regulatory snag ahead of its upcoming PDUFA; more.
Investor enthusiasm and evolving FDA pathways are accelerating rare disease drug development, with ultrarare conditions like MPS II moving into the spotlight.
U.S. President Donald Trump signed a spending package into law Tuesday that reauthorizes the FDA’s previously stalled rare pediatric disease priority review voucher program, among other initiatives, while ending a three-day partial government shutdown.
While GSK did not provide a specific reason for returning Wave Life Sciences’ WVE-006, the decision comes after the asset in September 2025 came below analyst expectations in a Phase Ib/IIa AATD study.
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