Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Obstructive Sleep Apnea: early-phase trial registry
66 of 157 indexed Obstructive Sleep Apnea trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #70 of 28,707 conditions by registered trial count.
157 US clinical trials · 66 currently recruiting · #70 of 28,707 conditions by registered trial count
Obstructive Sleep Apnea: 157 US clinical trials tracked, 66 recruiting.
Obstructive Sleep Apnea is the subject of 157 registered US clinical trials on ClinicalTrials.gov, 66 of them currently open to new participants. 11 are in Phase 3-4 (later-stage) and 26 in Phase 1-2 (earlier-stage). The most active sponsor is VA Office of Research and Development, running 11 of these trials.
Enrollment posture brief
Registry condition obstructive-sleep-apnea
OPEN 66 | RECR 42% | LATE 11 | EARLY 26 | RANK #70 | SPON 11
Volume-matched condition peers
Nearest open-share peer: Anesthesia, Local (42% recruiting · 19 trials)
Obstructive Sleep Apnea lists 66 open slots (42% of 157 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 Obstructive Sleep Apnea 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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Obstructive Sleep Apnea is recruiting above its size-band peers.
66 of 157 indexed trials (42%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.
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Sponsorship of Obstructive Sleep Apnea trials is spread across many organizations.
VA Office of Research and Development accounts for 11 of 157 trials (7%). 96 distinct sponsors appear on at least one study for this condition label.
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Typical Obstructive Sleep Apnea enrolment sits around 76 participants.
Median target enrolment is 76 among the 156 trials that report a genuine target (sentinel values excluded). 85 of those (54.5%) plan for fewer than 100 participants.
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Obstructive Sleep Apnea research is mostly interventional.
123 interventional and 34 observational studies make up this index (78.3% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
157 total, page 4 of 4
Metabolic Study of Women With Polycystic Ovary Syndrome and Sleep Apnea
University of Chicago
NCT00696111
Feasibility Study to Assess the Scan, Fit and Print Process for the Aveera "Patient Matched" CPAP Mask
Metamason
NCT02972970
Early Feasibility Study of Transcutaneous Upper Airway Stimulation in Obstructive Sleep Apnea
Somnial
NCT05881512
PMP-300E (Smart Watch): Portable Monitoring Device Study
Stanford University
NCT01364740
SleepFlexTM Treatment of Obstructive Sleep Apnea
Berendo Scientific
NCT04726514
Evaluating Instrumentation for Dental Devices Used in Treating Sleep Apnea
Dartmouth-Hitchcock Medical Center
NCT02056327
New Pharmacological Treatment for Obstructive Sleep Apnea
US Department of Veterans Affairs
NCT00108498
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 12 |
| Phase 2 | 14 |
| Phase 3 | 8 |
| Phase 4 | 3 |
Top Sponsors
Named interventions
Most-linked intervention names on Obstructive Sleep Apnea records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Obstructive Sleep Apnea 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 Obstructive Sleep Apnea page
157 registered trials, 66 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 66 Obstructive Sleep Apnea trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- VA Office of Research and Development sponsors the most Obstructive Sleep Apnea trials on record, review their full trial history before evaluating a specific study. See VA Office of Research and Development'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 Obstructive Sleep Apnea condition card totals 157 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.