New narcolepsy drug shows promise in preventing sleep attacks

NCT ID NCT07363720

First seen Jan 25, 2026 · Last updated May 10, 2026 · Updated 15 times

Summary

This study tests a new medicine called TAK-861 for people with narcolepsy type 1, a condition that causes sudden sleep attacks and muscle weakness (cataplexy). About 88 adults will take the drug for a few months, then some will switch to a placebo to see if their symptoms return. The goal is to find out if TAK-861 can safely control daytime sleepiness and cataplexy over time.

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This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Takeda Site 1

    RECRUITING

    Redwood City, California, 94063, United States

  • Takeda Site 10

    RECRUITING

    Toulouse, 31059, France

  • Takeda Site 11

    RECRUITING

    Schwerin, Mecklenburg-Vorpommern, 19053, Germany

  • Takeda Site 12

    RECRUITING

    Heemstede, 2103 SW, Netherlands

  • Takeda Site 13

    RECRUITING

    Barmelweid, Canton of Aargau, 5017, Switzerland

  • Takeda Site 14

    RECRUITING

    Bern, 3010, Switzerland

  • Takeda Site 15

    RECRUITING

    Cleveland, Ohio, 44195, United States

  • Takeda Site 16

    RECRUITING

    Middletown, New Jersey, 07748, United States

  • Takeda Site 17

    RECRUITING

    Durham, North Carolina, 27710-4000, United States

  • Takeda Site 18

    RECRUITING

    Winston-Salem, North Carolina, 27103, United States

  • Takeda Site 2

    RECRUITING

    Cincinnati, Ohio, 45245, United States

  • Takeda Site 3

    RECRUITING

    Columbia, South Carolina, 29201, United States

  • Takeda Site 4

    RECRUITING

    Brandon, Florida, 33511, United States

  • Takeda Site 5

    RECRUITING

    Austin, Texas, 78731, United States

  • Takeda Site 6

    RECRUITING

    Miami, Florida, 33155, United States

  • Takeda Site 7

    RECRUITING

    Southfield, Michigan, 48075, United States

  • Takeda Site 8

    RECRUITING

    Montpellier, 34295, France

  • Takeda Site 9

    RECRUITING

    Paris, 75013, France

Conditions

Explore the condition pages connected to this study.