Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Idiopathic Hypersomnia: early-phase trial registry
6 of 8 indexed Idiopathic Hypersomnia trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #2,176 of 28,707 conditions by registered trial count.
8 US clinical trials · 6 currently recruiting · #2,176 of 28,707 conditions by registered trial count
Idiopathic Hypersomnia: 8 US clinical trials tracked, 6 recruiting.
Idiopathic Hypersomnia is the subject of 8 registered US clinical trials on ClinicalTrials.gov, 6 of them currently open to new participants. 2 are in Phase 3-4 (later-stage) and 5 in Phase 1-2 (earlier-stage). The most active sponsor is Alkermes, running 2 of these trials.
Enrollment posture brief
Registry condition idiopathic-hypersomnia
OPEN 6 | RECR 75% | LATE 2 | EARLY 5 | RANK #2176 | SPON 2
Volume-matched condition peers
Nearest open-share peer: Adolescent Idiopathic Scoliosis (75% recruiting · 8 trials)
Idiopathic Hypersomnia lists 6 open slots (75% of 8 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →
Key findings
What ClinicalTrials.gov does not surface for Idiopathic Hypersomnia on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.
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Idiopathic Hypersomnia is recruiting above its size-band peers.
6 of 8 indexed trials (75%) are open to enrollment, against a 46.5% average across 27,806 conditions with fewer than 20 trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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One sponsor concentrates Idiopathic Hypersomnia research.
Alkermes accounts for 2 of 8 trials (25%). 6 distinct sponsors appear on at least one study for this condition label.
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Most Idiopathic Hypersomnia trials plan to enrol fewer than 100 people.
Median target enrolment is 96 among the 8 trials that report a genuine target (sentinel values excluded). 6 of those (75%) plan for fewer than 100 participants.
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Idiopathic Hypersomnia research is mostly interventional.
8 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
8 total, page 1 of 1
A Long-Term Study of ALKS 2680 in Subjects With Narcolepsy and Idiopathic Hypersomnia
Alkermes
NCT06767683
A Study of TAK-360 in Adults With Idiopathic Hypersomnia
Takeda
NCT06812078
A Study of ORX750 in Participants With Narcolepsy and Idiopathic Hypersomnia
Centessa Pharmaceuticals (UK) Limited
NCT06752668
A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia
Alkermes
NCT06843590
A Long-term Extension Study of ORX750 in Participants With Narcolepsy and Idiopathic Hypersomnia
Centessa Pharmaceuticals (UK) Limited
NCT07096674
Low Sodium Oxybate in Patients With Idiopathic Hypersomnia
Mayo Clinic
NCT05837091
Safety and Efficacy of FT218 in Idiopathic Hypersomnia (REVITALYZ)
Avadel
NCT06525077
Psychosocial Adjunctive Treatment for Hypersomnia (PATH)
Northwestern University
NCT03904238
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 2 | 5 |
| Phase 3 | 1 |
| Phase 4 | 1 |
Top Sponsors
Named interventions
Most-linked intervention names on Idiopathic Hypersomnia records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Idiopathic Hypersomnia trials. A trial with sites in several states counts in each.
Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.
Related
What to do with this Idiopathic Hypersomnia page
8 registered trials, 6 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 6 Idiopathic Hypersomnia trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Alkermes sponsors the most Idiopathic Hypersomnia trials on record, review their full trial history before evaluating a specific study. See Alkermes's trials
- Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide
Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.
Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Idiopathic Hypersomnia condition card totals 8 registered trials; most-linked intervention ORX750; top US site state Florida. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.