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NCT01642719 · ClinicalTrials.gov registry record · Phase 1
Chronic Moderate Sleep Restriction in Older Adults
A Phase 1 study, sponsored by University of California, Los Angeles.
- Completed
- Registry status
- Phase 1
- Development phase
- 200
- Enrollment target
NCT01642719: Completed Phase 1 study, sponsored by University of California, Los Angeles.
NCT01642719 is a Phase 1 study that has completed, run by University of California, Los Angeles. The registered enrollment target is 200 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (233% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01642719, a Phase 1 study, has completed, sponsored by University of California, Los Angeles.
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 200 participants
- Enrollment target
Study Summary
Higher rates of mortality have been found both in short sleepers (\< 6 hr/night) and long sleepers (\> 8 hr/night), but there has been little experimental investigation of the effects of chronic, moderate sleep loss in long or average sleepers. Some scientists argue that older adults might be particularly vulnerable to negative effects of sleep loss, whereas other scientists argue that many older adults spend too much time in bed, and that moderate reduction of time-in-bed could help increase the quality of their sleep, and could even promote health and longevity, particularly in long sleepers. At 4 sites across the US, we will conduct a large (200 people), randomized, controlled, 5- year study to examine whether a 1-hour reduction of time spent in bed for 12 weeks has negative or positive effects on multiple health-related outcomes, including inflammation, sleepiness, body weight, mood, glucose regulation, quality of life, incidence of illness, and incidence of automobile accidents in older long sleepers as compared to older average sleepers.
Primary Outcome
Evaluation of ability to adhere to a 60 min time-in-bed restriction over 12 weeks
Interventions
- BEHAVIORAL Sleep restriction
- BEHAVIORAL Non-sleep restriction
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 200 participants |
| Start Date | 2012-07-01 |
| Est. Completion | 2018-12 |
| Phase | Phase 1 |
What the finished NCT01642719 record still lists
NCT01642719 is an interventional study that assigns participants to a tested intervention. The registered 200 participants enrollment target is mid-sized for trials with a published cap, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (233% higher).
The record links to 0 conditions, and to 2 interventions - of which Sleep restriction is the first listed.
NCT01642719 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT01642719 about?
NCT01642719 is a clinical study titled "Chronic Moderate Sleep Restriction in Older Adults". Higher rates of mortality have been found both in short sleepers (\< 6 hr/night) and long sleepers (\> 8 hr/night), but there has been little experimental investigation of the effects of chronic, moderate sleep loss in long or average sleepers. Some scientists argue that older adults might be partic...
What is the current status of trial NCT01642719?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 200 participants. The study started on 2012-07-01. Estimated completion is 2018-12.
What interventions are being tested in trial NCT01642719?
The interventions under investigation include: Sleep restriction (BEHAVIORAL), Non-sleep restriction (BEHAVIORAL).
Who is sponsoring clinical trial NCT01642719?
This trial is sponsored by University of California, Los Angeles, which has 897 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT01642719's enrollment target sits among peer trials
200 259th of 2000 higher than 1,724 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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