Could a narcolepsy drug tame ADHD? phase 3 trial complete
NCT ID NCT05972044
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This Phase 3 trial tested whether solriamfetol, a drug already approved for sleep disorders, can reduce ADHD symptoms in adults. Over 500 participants took either a daily dose of solriamfetol or a placebo for six weeks. The study measured changes in attention and hyperactivity using a standard rating scale.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Solriamfetol (Sunosi), a tablet taken once daily
- What this could lead to
- If successful, solriamfetol could offer a new medication option for adults with ADHD to help improve focus and reduce hyperactivity.
- What could go wrong
- This is a completed Phase 3 trial, but results are not yet published. The drug may not work better than placebo, and side effects are possible. It is not a cure.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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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
Encino, California, 91316, United States
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Clinical Research Site
Garden Grove, California, 92845, United States
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Clinical Research Site
Newport Beach, California, 92660, United States
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Clinical Research Site
Riverside, California, 92506, United States
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Clinical Research Site
Santa Ana, California, 92705, United States
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Clinical Research Site
Sherman Oaks, California, 91403, United States
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Clinical Research Site
Torrance, California, 90504, United States
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Clinical Research Site
Walnut Creek, California, 94596, United States
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Clinical Research Site
Colorado Springs, Colorado, 80910, United States
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Clinical Research Site
Clermont, Florida, 34711, United States
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Clinical Research Site
Doral, Florida, 33122, United States
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Clinical Research Site
Gainesville, Florida, 32607, United States
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Clinical Research Site
Jacksonville, Florida, 32256, United States
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Clinical Research Site
Lauderhill, Florida, 33319, United States
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Clinical Research Site
Miami Lakes, Florida, 33016, United States
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Clinical Research Site
Orlando, Florida, 32801, United States
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Clinical Research Site
Marietta, Georgia, 30060, United States
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Clinical Research Site
Overland Park, Kansas, 66210, United States
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Clinical Research Site
Boston, Massachusetts, 02131, United States
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Clinical Research Site
Saint Charles, Missouri, 63304, United States
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Clinical Research Site
Lincoln, Nebraska, 68526, United States
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Clinical Research Site
Las Vegas, Nevada, 89102, United States
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Clinical Research Site
Las Vegas, Nevada, 89128, United States
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Clinical Research Site
Berlin, New Jersey, 08009, United States
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Clinical Research Site
Cherry Hill, New Jersey, 08002, United States
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Clinical Research Site
Princeton, New Jersey, 08540, United States
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Clinical Research Site
Mount Kisco, New York, 10549, United States
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Clinical Research Site
New York, New York, 10128, United States
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Clinical Research Site
Raleigh, North Carolina, 27609, United States
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Clinical Research Site
Cincinnati, Ohio, 45219, United States
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Clinical Research Site
Kettering, Ohio, 45439, United States
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Clinical Research Site
Oklahoma City, Oklahoma, 73116, United States
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Clinical Research Site
Media, Pennsylvania, 19063, United States
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Clinical Research Site
North Charleston, South Carolina, 29405, United States
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Clinical Research Site
Memphis, Tennessee, 38119, United States
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Clinical Research Site
Austin, Texas, 78737, United States
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Clinical Research Site
Bellaire, Texas, 77401, United States
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Clinical Research Site
Dallas, Texas, 75243, United States
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Clinical Research Site
Dallas, Texas, 75251, United States
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Clinical Research Site
San Antonio, Texas, 78229, United States
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Clinical Research Site
Draper, Utah, 84020, United States
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Clinical Research Site
Everett, Washington, 98201, United States
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