New hope for chronic sleepiness: phase 3 drug trial launches
NCT ID NCT07500090
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests an experimental drug called HBS-301 to see if it can reduce symptoms of idiopathic hypersomnia, a condition causing severe daytime sleepiness, trouble waking up, and fatigue. About 248 adults with moderate to very severe symptoms will receive either the drug or a placebo for several weeks, followed by an open-label phase where everyone gets the drug. The goal is to measure changes in sleepiness and overall symptom severity.
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Central Florida Pediatric Sleep Disorders Institute (Florida Pediatric Research Institute, LLC)
RECRUITINGWinter Park, Florida, 32789, United States
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Clinical Research of Gastonia
RECRUITINGGastonia, North Carolina, 28054, United States
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••
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David Kudrow, MD
RECRUITINGMorrisville, North Carolina, 27560, United States
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K2 Medical Research
RECRUITINGNashville, Tennessee, 37204, United States
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NeuroTrials Research Inc.
RECRUITINGAtlanta, Georgia, 30328, United States
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Contact
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PharmDev Research Institute, LLC
RECRUITINGMiami, Florida, 33176, United States
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Phillip Nowlin
RECRUITINGStockbridge, Georgia, 30281, United States
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Respiratory Specialists
RECRUITINGWyomissing, Pennsylvania, 19610, United States
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Santa Monica Clinical Trials
RECRUITINGSanta Monica, California, 90404, United States
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St. Luke's Hospital, Sleep Medicine and Research Center
RECRUITINGChesterfield, Missouri, 63017, United States
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Stern Research Partners, LLC
RECRUITINGHuntersville, North Carolina, 28078, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
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West Virginia University
RECRUITINGMorgantown, West Virginia, 26506, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••