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Enrolling by invitationNo phase

Muscle Stimulation During DISE

Key facts

Who runs it
Vanderbilt University Medical Center
Where
Nashvile, United StatesSee the site
Trial code
Status
Enrolling by invitation
People taking part
60 people, planned
Started
26 Jul 2018
Expected to end
Dec 2028
Type of study
Interventional
Treatments tested
  • Grass S88 Muscle Stimulator
Record updated
21 August 2026

Who can take part

Age
18 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 11 criteriaShow less

Who can take part

  • Adult patient (≥18 years old)
  • A diagnosis of obstructive sleep apnea as determined by polysomnogram with an apnea-hypopnea index of ≥ 5.0/hr
  • Intolerant of CPAP therapy due to physical or psychosocial limitations as determined by clinical history
  • Scheduled to undergo DISE as part of routine clinical assessment for further evaluation of pharyngeal anatomy

Who cannot take part

  • Unable to consent for research due to a pre-existing neurologic condition as determined by PI
  • A history of egg allergy as determined by history or self-reports
  • Cardiopulmonary or other medical conditions precluding safe propofol sedation as determined by pre-operative anesthesia evaluation
  • History of palatal or pharyngeal airway surgery including tonsillectomy as determined by clinical history and exam
  • History of radiation treatment to the head or neck as determined by history and/or physical exam
  • Unable to consent for research due to language barriers
  • Currently pregnant as determined by patient report or pre-operative anesthesia evaluation

Where in United States

  • Vanderbilt University Medical CenterNashvile, United StatesNo longer taking part

About the trial

What the trial wants to find out

Drug-induced sleep endoscopy (DISE) is a widely used tool for assessing collapse patterns of the upper airway anatomy during sleep. Hypoglossal nerve stimulation therapy for obstructive sleep apnea suffers from variable response at the level of the soft palate. We propose a study examining the physiologic effect of palatoglossus and genioglossus muscle stimulation during DISE.

The group in the trial

  • Muscle stimulationTreatment being tested

    Consented participants who meet eligibility will have a drug induced sleep endoscopy (DISE) and the Grass S88 muscle stimulator.

    Treatment: Grass S88 Muscle Stimulator

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
The Effect of Palatoglossus and Genioglossus Stimulation During Drug-Induced Sleep Endoscopy
Record updated
21 August 2026