Rare condition
Idiopathic hypersomnia
18
studies recruiting now
as of 7 Sept 2026
55
studies registered in total
as of 7 Sept 2026
10
countries with a recruiting site
as of 7 Sept 2026
15 Jun 2026
most recent study posted
among recruiting studies
Recruiting trials
a Chronobiological Treatment Combining Evening Melatonin and Morning Light Therapy in Idiopathic Hypersomnia: a Prospective, Double Bind, Randomized, Placebo-controlled -Trial
A Study Evaluating the Efficacy and Safety of Xywav Expanded Dosing vs Placebo in Participants With Narcolepsy or IH
A Phase 3 Efficacy and Safety Study of HBS-301 in Participants With Idiopathic Hypersomnia (IH)
A Long-Term Study of ALKS 2680 in Subjects With Narcolepsy and Idiopathic Hypersomnia
Showing the 5 most recently updated recruiting studies, as recorded 7 Sept 2026. Live status on each study page.
See all 18 recruiting studiesWhere recruiting studies are running
Countries with at least one recruiting site among the studies above, 7 Sept 2026. Tap a country to search trials there.
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Patient organisations
We do not yet list a dedicated organisation for this condition. The directories below are the best route.
About Idiopathic hypersomnia
RareTrial does not yet hold a plain-language description of this condition. The most reliable starting point is Orphanet’s expert page, which lists specialist centres, registries and patient organisations.
Treatments being studied
8 in clinical development, from Open Targets (CC BY 4.0). Not medical advice.
Information, not medical advice. Trial listings are shown as recorded on ClinicalTrials.gov; whether any study is right for you is a decision for you and your clinicians, and eligibility is decided by each research team. Disease information from Orphanet (CC BY 4.0).