Rare diseases
Ocaliva won accelerated approval for primary biliary cholangitis in 2016, which the FDA refused to upgrade to full approval last year after an advisory committee was unable to verify a favorable risk/benefit profile.
After receiving a complete response letter for its pyruvate dehydrogenase complex deficiency candidate, Saol Therapeutics anticipates it will need “several years” and “significant financial resources” to address the FDA’s concerns.
While the new framework signals continued flexibility at the FDA regarding rare disease approvals, some analysts and advocates question what tangible impacts the new guidelines will have.
As AAV9 and CRISPR programs navigate safety, delivery and scalability hurdles, small molecules offer a deployable, scalable bridge, complementing genetic approaches and accelerating meaningful impact for patients with Duchenne muscular dystrophy.
Vertex Pharmaceuticals commits $45 million upfront to leverage Enlaza Therapeutics’ War-Lock platform to create drug conjugates and T cell engagers for autoimmune diseases and gentler conditioning for sickle cell/beta thalassemia gene-editing therapy Casgevy.
Aside from the rare disease market, Novo Nordisk also scored a key regulatory win last month for its blockbuster GLP-1 drug Wegovy, which can now be used to treat patients with metabolic dysfunction-associated steatohepatitis.
AMX0035—approved as Relyvrio in 2022 for amyotrophic lateral sclerosis but voluntarily pulled from the market last year—was unable to distinguish itself from placebo in a mid-to-late-stage trial of progressive supranuclear palsy.
Regeneron’s cemdisiran, used alone or in combination with its complement inhibitor Veopoz, significantly improved activities of daily living in patients with generalized myasthenia gravis.
Based on new data, argenx expects to file for the expansion of Vyvgart’s label into patients with generalized myasthenia gravis who are negative for antibodies against the AChR marker—an indication William Blair analysts called the broadest option in this disease space.
The drug, for hereditary angioedema, is Ionis’ second wholly owned asset.
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