New drug shows promise for reducing narcolepsy attacks over the long term
NCT ID NCT05113745
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at the long-term safety and effectiveness of a drug called AXS-12 for people with narcolepsy who also have sudden muscle weakness (cataplexy) and severe daytime sleepiness. 68 people who had already completed an earlier study took AXS-12 and were monitored for side effects and changes in how often they had cataplexy attacks. The goal was to see if the drug remains safe and helpful over time.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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68 people
The number who actually took part.
- Started
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Oct 2021
- Finished
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Nov 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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15 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Completed the treatment period of Study AXS-12-301 * Willing and able to comply with the study requirements Exclusion Criteria: * Significant change in medical history or concomitant medications since enrolling in the AXS-12-301 study which, in the opinion of the Investigator, would render the subject unsuitable to receive AXS-12
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Clinical Research Site
Phoenix, Arizona, 85054, United States
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Clinical Research Site
Boulder, Colorado, 80301, United States
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Clinical Research Site
Colorado Springs, Colorado, 80918, United States
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Clinical Research Site
Brandon, Florida, 33511, United States
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Clinical Research Site
Clearwater, Florida, 33765, United States
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Clinical Research Site
Doral, Florida, 33122, United States
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Clinical Research Site
Miami Lakes, Florida, 33016, United States
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Clinical Research Site
Winter Park, Florida, 32789, United States
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Clinical Research Site
Atlanta, Georgia, 30315, United States
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Clinical Research Site
Atlanta, Georgia, 30328, United States
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Clinical Research Site
Stockbridge, Georgia, 30281, United States
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Clinical Research Site
Chevy Chase, Maryland, 20815, United States
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Clinical Research Site
Kalamazoo, Michigan, 49008, United States
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Clinical Research Site
Novi, Michigan, 48377, United States
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Clinical Research Site
Neptune City, New Jersey, 07753, United States
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Clinical Research Site
Denver, North Carolina, 28037, United States
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Clinical Research Site
Gastonia, North Carolina, 28054, United States
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Clinical Research Site
Huntersville, North Carolina, 28078, United States
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Clinical Research Site
Cincinnati, Ohio, 45245, United States
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Clinical Research Site
Wyomissing, Pennsylvania, 19610, United States
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Clinical Research Site
Charleston, South Carolina, 29425, United States
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Clinical Research Site
Columbia, South Carolina, 29201, United States
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Clinical Research Site
Austin, Texas, 78731, United States
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Clinical Research Site
San Antonio, Texas, 78229, United States
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Clinical Research Site
Toronto, Ontario, M5S 3A3, Canada
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Other studies related to the condition(s) this trial covers.
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- New pill aims to tame Narcolepsy's sleep attacks and sudden muscle weakness
- Dream control: a new behavioral approach to tame narcolepsy nightmares