New pill aims to keep narcolepsy patients awake and steady
NCT ID NCT07540897
First seen Jun 27, 2026 · Last updated Sep 04, 2026 · Updated 5 times
Summary
This phase 3 trial tests whether a daily tablet called ALKS 2680 can reduce severe daytime sleepiness and sudden muscle weakness (cataplexy) in adults with narcolepsy type 1. About 150 participants will receive either the drug or a placebo for 12 weeks. The study measures improvements in staying awake and overall symptom severity.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ALKS 2680 (alixorexton) tablets
- What this could lead to
- If successful, this could provide a new daily medication to better control excessive daytime sleepiness and sudden muscle weakness in people with narcolepsy type 1.
- What could go wrong
- This is a phase 3 trial, but it is still experimental. The drug may not work better than a placebo, and side effects are possible. It is not a cure, and long-term safety is not yet known.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2026
- Expected to finish
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Jul 2027
An estimate. End dates often move.
- 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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18 to 70 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Meets the diagnostic criteria of NT1 according to ICSD-3-TR guidelines, confirmed by diagnostic evaluations (either PSG/MSLT\* or CSF hypocretin-1 level) Exclusion Criteria: * Has another comorbid sleep disorder or condition that may influence the sleep-wake cycle. * Has a history or presence at Visit 1 of other clinically significant (treated or untreated) illness, disease, abnormality, or surgical procedure that, in the opinion of the Investigator, might compromise participant safety, interfere with any study assessment, or affect the participant's ability to complete the study. * Is currently enrolled in another interventional clinical trial or has received any investigational drug or used any interventional investigational device within 30 days prior to Visit 1. Participants previously enrolled in Study ALKS 2680-201 are not eligible for enrollment. * Is currently pregnant, breastfeeding, or is planning to become pregnant during the study.
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Get notified about this study
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
17 sites in 3 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Alkermes Investigational Site
RECRUITINGBrandon, Florida, 33511, United States
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Alkermes Investigational Site
RECRUITINGMiami, Florida, 33176, United States
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Alkermes Investigational Site
RECRUITINGWinter Park, Florida, 32789, United States
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Alkermes Investigational Site
RECRUITINGAtlanta, Georgia, 30328, United States
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Alkermes Investigational Site
RECRUITINGMacon, Georgia, 31210, United States
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Alkermes Investigational Site
RECRUITINGLansing, Michigan, 48911, United States
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Alkermes Investigational Site
RECRUITINGSt Louis, Missouri, 63123, United States
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Alkermes Investigational Site
RECRUITINGCharlotte, North Carolina, 28210, United States
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Alkermes Investigational Site
RECRUITINGCincinnati, Ohio, 45245, United States
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Alkermes Investigational Site
RECRUITINGColombia, South Carolina, 29201, United States
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Alkermes Investigational Site
RECRUITINGDallas, Texas, 75251, United States
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Alkermes Investigational Site
RECRUITINGFrisco, Texas, 75033, United States
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Alkermes Investigational Site
RECRUITINGSan Antonio, Texas, 78229, United States
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Alkermes Investigational Site
RECRUITINGSugar Land, Texas, 77478, United States
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Alkermes Investigational Site
RECRUITINGMarkham, Ontario, L3R 1A3, Canada
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Alkermes Investigational Site
RECRUITINGToronto, Ontario, M5S 3A3, Canada
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Alkermes Investigational Site
RECRUITINGKrakow, 30-105, Poland
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Awake but asleep: brain waves may explain crushing daytime sleepiness
- Can a new pill tame Narcolepsy's sudden sleep and muscle weakness?
- Do current sleepiness tests work for kids? a new study puts them to the test
- Zapping the Brain's deep centers: a new approach to narcolepsy?
- New test could sharpen diagnosis of narcolepsy and related sleep disorders
- New pill aims to tame Narcolepsy's sleep attacks and sudden muscle weakness