Drug Development
Analysts said the outcome is disappointing because there are no approved treatments for dyskinetic cerebral palsy, but the setback had little impact on Neurocrine’s valuation.
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In the midst of regulatory and political upheaval, biopharma’s R&D engine kept running, churning out highs and lows in equal parts. Here are some of this year’s most glorious clinical trial victories.
Every year in biopharma brings its share of grueling defeats, and 2025 was no different, especially for companies targeting neurological diseases. Some failures split up partners, and one particularly egregious case even led to the demise of an entire company.
The R&D pipeline for depression therapies faced a demoralizing 2025 as five high-profile candidates, including KOR antagonists by Johnson & Johnson and Neumora Therapeutics, flunked late-stage clinical trials, underscoring the persistent challenges of CNS drug development.
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Imlifidase, an IgG-destroying enzyme, could receive FDA approval in the second half of 2026 and hit peak sales of $306 million, according to William Blair.
Truist analysts called the results “encouraging” while pointing out certain unknowns in the data. Immuneering plans to kick off a registrational trial for atebimetinib later this year.
The decision to stop the Phase IIb study was driven by “strategic business reasons,” according to a federal clinical trials database.
While Harmony management has not disclosed future plans for ZYN002, Jefferies analysts expect the asset to be shelved.
Acadia Pharmaceuticals was testing the drug, an intranasal formulation of the oxytocin analogue carbetocin, for its potential to ease hyperphagia in the rare neurological condition.
If approved, uniQure’s gene therapy AMT-130—which slowed disease progression by 75%—would be the first genetic treatment for Huntington’s disease. A BLA submission is planned for the first quarter of 2026.
The FDA is hoping to repurpose GSK’s Wellcovorin for cerebral folate deficiency; Pfizer acquired fast-moving weight-loss startup Metsera for nearly $5 billion after suffering a hat trick of R&D failures; psychedelics are primed for M&A action and Eli Lilly may be next in line; RFK Jr.’s revamped CDC advisory committee met last week with confounding results; and Stealth secured its Barth approval.
By improving gait stability, Ionis’ zilganersen could be “potentially disease modifying,” according to analysts at William Blair.
With AbbVie’s $1.2 billion acquisition of Gilgamesh Pharmaceuticals’ lead depression drug, the psychedelic therapeutics space has soundly rebounded from Lykos’ rejection last year. There are now seven programs in Phase III trials across the sector, with multiple companies vying for that first approval.
A decade-long journey has come to an end for Stealth BioTherapeutics and the Barth syndrome community with the first-ever treatment for this uncommon mitochondrial disease. CEO Reenie McCarthy called it a “pivotal victory” that “offers hope for expedited regulatory attention to other ultra-rare diseases.”