Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Investigating how lung volume affects throat collapse during sleep endoscopy for sleep apnea

Official title: Characterizing the Effects of Lung Volume on Upper Airway Patency During Drug Induced Sleep Endoscopy in Patients With Obstructive Sleep Apnea

Run by Emory University · NCT05350332 · Data updated 2026-11-12

This study is trying to see how changes in lung volume affect throat collapse during sleep tests in people with obstructive sleep apnea to help improve their treatment options.

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment151 (estimated)
SponsorEmory University
Academic / other
Locations1 site (Atlanta, Georgia)
StatusRecruiting
StartedJune 30, 2022
Main results expectedJune 2027
Study endsJune 2027
Registry record updatedAugust 26, 2026
Trial IDNCT05350332 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults aged 18 and older with obstructive sleep apnea who are interested in surgical treatment and have consented to undergo DISE.

Probably not a fit

Patients with significant uncontrolled medical comorbidities or those unable to tolerate the procedures involved may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study examines the relationship between lung volume and upper airway patency during drug-induced sleep endoscopy (DISE) in patients with obstructive sleep apnea (OSA). Participants will undergo DISE as part of their routine surgical evaluation for OSA, where a negative pressure ventilator will be used to manipulate lung volume. The goal is to better understand how lung function influences throat collapse, which could improve surgical outcomes for OSA patients. By exploring these pathophysiological factors, the study aims to enhance the selection process for surgical candidates and potentially lead to new treatment options.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical outcomes for patients with obstructive sleep apnea.

How similar studies have gone: While the relationship between lung volume and throat collapse during DISE has not been extensively studied, similar approaches in evaluating pathophysiological factors have shown promise in improving surgical outcomes in other studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients (≥ 18 yrs) willing and capable of providing informed consent
* Obstructive sleep apnea (AHI ≥ 5 events/hour)
* Must be willing and able to provide informed consent to participate in the study.
* Interested in surgical treatments of OSA and have consented for a DISE procedure as part of their routine clinical evaluation.

  * Patients are evaluated and cleared by anesthesia prior to the procedure.

Exclusion Criteria:

* No significant uncontrolled medical co-morbidities (e.g., uncontrolled hypertension, unstable angina, uncompensated heart failure or COPD).
* Any medical comorbidity that would prevent the patient from receiving anesthesia or having surgery
* Inability to tolerate negative pressure ventilator or perform PFT (i.e. claustrophobia)
* No incapacitating disability that interferes with execution of the protocol

Where it's running

  • Emory University Hospital Midtown
    Atlanta, Georgia, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.