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NCT00607204 · ClinicalTrials.gov registry record

Examining the Biological Factors That Affect Sleep Duration

A clinical trial of Sleep and Circadian Rhythm, sponsored by Brigham and Women's Hospital.

Completed
Registry status
119
Enrollment target
1
Study location

NCT00607204: Completed study of Sleep and Circadian Rhythm, sponsored by Brigham and Women's Hospital.

NCT00607204 is a study of Sleep and Circadian Rhythm that has completed, run by Brigham and Women's Hospital. The registered enrollment target is 119 participants, below the 4,165-participant average among 151 other Sleep trials with a reported enrollment target (97% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00607204, a study of Sleep and Circadian Rhythm, has completed, sponsored by Brigham and Women's Hospital.

COMPLETED
Registry status
119 participants
Enrollment target
1
Study location

Study Summary

Sleep is necessary for healthy functioning, and people who sleep too little or too much may have an increased risk of developing health problems. This study will examine people who regularly sleep for short or long amounts of time to understand the biological factors that determine how much sleep a person needs.

Study Locations (1)

Massachusetts

  • Brigham & Women's Hospital - Boston

Trial Details

FieldValue
Enrollment Target 119 participants
Start Date 2005-10
Est. Completion 2011-11
Brigham and Women's Hospital

937 total trials

What the finished NCT00607204 record still lists

NCT00607204 is an observational study that tracks outcomes without assigning an intervention. The registered 119 participants enrollment target is mid-sized for trials with a published cap, below the 4,165-participant average among 151 other Sleep trials with a reported enrollment target (97% lower).

The record links to 3 conditions, with Sleep appearing as the primary indexed condition, and to 0 interventions.

NCT00607204 reports a single indexed study location in Massachusetts.

Frequently Asked Questions

What is clinical trial NCT00607204 about?

NCT00607204 is a clinical study titled "Examining the Biological Factors That Affect Sleep Duration". Sleep is necessary for healthy functioning, and people who sleep too little or too much may have an increased risk of developing health problems. This study will examine people who regularly sleep for short or long amounts of time to understand the biological factors that determine how much sleep a ...

What is the current status of trial NCT00607204?

This trial is currently completed. The enrollment target is 119 participants. The study started on 2005-10. Estimated completion is 2011-11.

What conditions does trial NCT00607204 study?

This clinical trial studies the following conditions: Sleep, Circadian Rhythm, Cognitive Performance.

Who is sponsoring clinical trial NCT00607204?

This trial is sponsored by Brigham and Women's Hospital, which has 937 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00607204 being conducted?

This trial has 1 study location across Massachusetts. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Sleep

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00607204's enrollment target sits among peer trials

119 52nd of 151 higher than 100 of 151 other Sleep trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Sleep 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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Source: ClinicalTrials.gov NCT00607204, the US trial registry maintained by the National Library of Medicine. NCT00607204 (mid enrollment · single site footprint · completed) retrieved and formatted by PlainTrial, see methodology.