Medical Information Only. Consult your healthcare provider before considering clinical trial enrollment.
Sleep Restriction: early-phase trial registry
1 of 5 indexed Sleep Restriction trials are currently recruiting, with more weight in Phase 1-2.
Corpus placement: #3,391 of 28,707 conditions by registered trial count.
5 US clinical trials · 1 currently recruiting · #3,391 of 28,707 conditions by registered trial count
Sleep Restriction: 5 US clinical trials tracked, 1 recruiting.
Sleep Restriction is the subject of 5 registered US clinical trials on ClinicalTrials.gov, 1 of them currently open to new participants. 0 are in Phase 3-4 (later-stage) and 3 in Phase 1-2 (earlier-stage). The most active sponsor is Peter y. Liu, running 1 of these trials.
Enrollment posture brief
Registry condition sleep-restriction
OPEN 1 | RECR 20% | LATE 0 | EARLY 3 | RANK #3391 | SPON 1
Volume-matched condition peers
Nearest open-share peer: Accelerated Phase Chronic Myelogenous Leukemia, BCR-ABL1 Positive (20% recruiting · 10 trials)
Sleep Restriction lists 1 open slots (20% of 5 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 Sleep Restriction 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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Sleep Restriction is recruiting below its size-band peers.
1 of 5 indexed trials (20%) 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 Sleep Restriction research.
Peter y. Liu accounts for 1 of 5 trials (20%). 5 distinct sponsors appear on at least one study for this condition label.
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Most Sleep Restriction trials plan to enrol fewer than 100 people.
Median target enrolment is 66 among the 5 trials that report a genuine target (sentinel values excluded). 5 of those (100%) plan for fewer than 100 participants.
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Sleep Restriction research is mostly interventional.
5 interventional and 0 observational studies make up this index (100% interventional). Study type is sponsor-reported on ClinicalTrials.gov.
Open and recent trials
5 total, page 1 of 1
Acoustic Stimulation During Restricted Sleep After Sleep Deprivation
Walter Reed Army Institute of Research (WRAIR)
NCT05309473
Hormonal Mechanisms of Sleep Restriction - Axis Study
Peter y. Liu
NCT03142893
Sleep and Inflammatory Resolution Pathway
Beth Israel Deaconess Medical Center
NCT03377543
Hormonal Mechanisms of Sleep Restriction - Axis Study in Older Men and Postmenopausal Women
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
NCT04037605
Impact of a Sleep Debt in Middle-Aged and Older Adults
University of Chicago
NCT00817700
Phase Distribution
| Phase | Trial count |
|---|---|
| Phase 1 | 3 |
Top Sponsors
Named interventions
Most-linked intervention names on Sleep Restriction records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.
US sites by state
Facility locations filed on Sleep Restriction 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 Sleep Restriction page
5 registered trials, 1 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.
- 1 Sleep Restriction trials are currently recruiting, check eligibility criteria before contacting a site. Browse recruiting trials
- Peter y. Liu sponsors the most Sleep Restriction trials on record, review their full trial history before evaluating a specific study. See Peter y. Liu'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 Sleep Restriction condition card totals 5 registered trials; most-linked intervention Cosyntropin Injectable Product; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.