FDA Accepts Takeda’s Oveporexton NDA for Narcolepsy Type 1

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FDA has accepted for priority review a Takeda NDA for TAK-861 (oveporexton) as a potential first-in-class treatment for narcolepsy Type 1. Narcolepsy Type 1 is a rare, chronic neurological disorder characterized by excessive daytime sleepiness and cataplexy, resulting from loss of orexin-producing neurons. The agency has set a user fee review action target for the third quarter.

Oveporexton is described as an investigational oral orexin receptor 2 (OX2R)–selective agonist designed to restore orexin signaling, addressing the underlying orexin deficiency that causes narcolepsy Type 1. If approved, it would be the first orexin agonist available for patients with the disease, according to the company.

The submission is based on data from two global Phase 3 studies, FirstLight (TAK-861-3001) and RadiantLight (TAK-861-3002). According to Takeda, the trials demonstrated statistically significant and clinically meaningful improvements across multiple objective and patient-reported endpoints, including wakefulness, excessive daytime sleepiness, cataplexy, attention, quality of life, and daily functioning. Reported improvements approached near-normal ranges across the assessed symptom domains, it adds.

Oveporexton was generally well tolerated, with a safety profile consistent across studies. The most common adverse events reported were insomnia, urinary urgency, and urinary frequency, the company says.

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