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NCT01738009 · ClinicalTrials.gov registry record · NA
Mechanisms of Pharyngeal Collapse in Sleep Apnea, Study B
A NA study of Sleep Apnea, sponsored by Brigham and Women's Hospital.
- Completed
- Registry status
- NA
- Development phase
- 40
- Enrollment target
- 1
- Study location
NCT01738009: Completed NA study of Sleep Apnea, sponsored by Brigham and Women's Hospital.
NCT01738009 is a NA study of Sleep Apnea that has completed, run by Brigham and Women's Hospital. The registered enrollment target is 40 participants, below the 2,988-participant average among 36 other Sleep Apnea trials with a reported enrollment target (99% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT01738009, a NA study of Sleep Apnea, has completed, sponsored by Brigham and Women's Hospital.
- COMPLETED
- Registry status
- NA
- Development phase
- 40 participants
- Enrollment target
- 1
- Study location
Study Summary
In obstructive sleep apnea (OSA), the upper airway recurrently closes during sleep. The mechanisms that lead to airway closure are not completely understood. Some studies have shown that there is progressive narrowing of the pharyngeal airway across breaths during expiration (Progressive Expiratory Narrowing, PEN) preceding an obstructive apnea. The cause of PEN is unknown. The investigators will test if lung volumes and low respiratory drive play a role in PEN.
Primary Outcome
Measured peak inspiratory flow will be compared to predicted peak inspiratory flow during flow restricted breaths. The time frame for the outcome will be the duration of induced flow limitation (3 minutes each) . Flow limitation will be induced several times during the night. Flow limited breaths will be averaged.
Conditions Studied
Interventions
- OTHER Induction of flow limitation
Study Locations (1)
Massachusetts
- Brigham and Women's Hospital - Boston
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 40 participants |
| Start Date | 2012-12-08 |
| Est. Completion | 2016-10 |
| Phase | NA |
What the finished NCT01738009 record still lists
NCT01738009 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 40 participants, a relatively small participant target, below the 2,988-participant average among 36 other Sleep Apnea trials with a reported enrollment target (99% lower).
The record links to 1 condition, with Sleep Apnea appearing as the primary indexed condition, and to 1 intervention - of which Induction of flow limitation is the first listed.
NCT01738009 reports a single indexed study location in Massachusetts.
Frequently Asked Questions
What is clinical trial NCT01738009 about?
NCT01738009 is a clinical study titled "Mechanisms of Pharyngeal Collapse in Sleep Apnea, Study B". In obstructive sleep apnea (OSA), the upper airway recurrently closes during sleep. The mechanisms that lead to airway closure are not completely understood. Some studies have shown that there is progressive narrowing of the pharyngeal airway across breaths during expiration (Progressive Expiratory ...
What is the current status of trial NCT01738009?
This trial is currently completed. It is a NA study. The enrollment target is 40 participants. The study started on 2012-12-08. Estimated completion is 2016-10.
What conditions does trial NCT01738009 study?
This clinical trial studies the following conditions: Sleep Apnea.
What interventions are being tested in trial NCT01738009?
The interventions under investigation include: Induction of flow limitation (OTHER).
Who is sponsoring clinical trial NCT01738009?
This trial is sponsored by Brigham and Women's Hospital, which has 937 total clinical trials registered on ClinicalTrials.gov.
Where is trial NCT01738009 being conducted?
This trial has 1 study location across Massachusetts. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.
Learn More About Clinical Trials
Similar trials for Sleep Apnea
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 NCT01738009's enrollment target sits among peer trials
40 27th of 36 higher than 8 of 36 other Sleep Apnea trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Sleep Apnea 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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