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A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of TAK-861 for the Treatment of Narcolepsy With Cataplexy (Narcolepsy Type 1)

Trial Profile

A Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of TAK-861 for the Treatment of Narcolepsy With Cataplexy (Narcolepsy Type 1)

Status: Completed
Phase of Trial: Phase III

Latest Information Update: 03 Nov 2026

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At a glance

  • Drugs Oveporexton (Primary)
  • Indications Cataplexy; Narcolepsy
  • Focus Registrational; Therapeutic Use
  • Acronyms FirstLight
  • Sponsors Takeda; Takeda Development Center Americas

Most Recent Events

  • 09 Sep 2026 According to the Takeda media release, the results from the trial were published in the New England Journal of Medicine.
  • 09 Sep 2026 Results presented in the Takeda media release.
  • 24 Aug 2026 According to the Takeda media release, The Japanese MHLW approval of ORZEYFUL (oveporexton) for adult narcolepsy type 1 was supported by results from the global Phase 3 FirstLight (TAK-861-3001; NCT06470828) and RadiantLight (TAK-861-3002; NCT06505031) trials.

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