New drug shows promise for Narcolepsy's worst symptoms

NCT ID NCT03881852

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 trial tested AXS-12 (reboxetine) in 21 adults with narcolepsy and cataplexy. Participants received either the drug or a placebo for three weeks, then switched. The goal was to see if AXS-12 could reduce weekly cataplexy attacks and improve excessive daytime sleepiness.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

AXS-12 (reboxetine)

What this could lead to

If it works, this could point toward a new treatment option to reduce sudden muscle weakness and daytime sleepiness in people with narcolepsy.

What could go wrong

This is a small, early Phase 2 trial with only 21 people and a short 3-week treatment period. Results may not hold up in larger, longer studies, and side effects are possible.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

Cataplexy Disorders of Excessive Somnolence hypersomnia narcolepsy narcolepsy-cataplexy syndrome

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CONCERT Study Site

    Birmingham, Alabama, 35213, United States

  • CONCERT Study Site

    Alameda, California, 94501, United States

  • CONCERT Study Site

    Santa Ana, California, 92705, United States

  • CONCERT Study Site

    Boulder, Colorado, 80301, United States

  • CONCERT Study Site

    Miami, Florida, 33126, United States

  • CONCERT Study Site

    Gainesville, Georgia, 30501, United States

  • CONCERT Study Site

    Stockbridge, Georgia, 30281, United States

  • CONCERT Study Site

    Fort Wayne, Indiana, 46804, United States

  • CONCERT Study Site

    Chevy Chase, Maryland, 20815, United States

  • CONCERT Study Site

    The Bronx, New York, 10467, United States

  • CONCERT Study Site

    Cincinnati, Ohio, 45219, United States

  • CONCERT Study Site

    Columbia, South Carolina, 29201, United States

  • CONCERT Study Site

    Austin, Texas, 78731, United States

  • CONCERT Study Site

    San Antonio, Texas, 78229, United States