Predicting Outcomes in Hypoglossal Nerve Stimulation Therapy With Stimulated Upper Airway Mechanics (NCT05429983)
Assessing Stimulated Upper Airway Mechanics to Predict Outcomes in Hypoglossal Nerve
🩺 Plain-English Summary (8th-Grade Level)
Obstructive sleep apnea (OSA) is a highly prevalent disease resulting from dynamic upper airway collapse during sleep. Continuous positive airway pressure (CPAP) is highly efficacious but high rates of non-adherence to CPAP leaves large number of OSA patients at risk for cardiometabolic sequelae. Inspire™ is an FDA-approved hypoglossal nerve stimulation device (HGNS) used in select patients with OSA who are intolerant of CPAP. The device consists of an implanted impulse generator with a stimulating cuff lead around the distal hypoglossal nerve. Despite these stringent selection criteria, up to one-third of patients implanted have inadequate responses to HGNS and remain at risk for complications from untreated OSA. The current proposal builds on routine clinical care to characterize upper airway biomechanics and determine predictors of clinical responses to HGNS therapy. Drug induced sleep endoscopy (DISE) is a prerequisite for HGNS treatment and represents an ideal opportunity to rapidly characterize upper airway dynamics under controlled, standardized conditions. The amount of nasal pressure required to relieve airway obstruction (minimal therapeutic pressure) is a significant predictor of successful treatment of OSA with HGNS. As a result, CPAP titration (measuring pharyngeal collapse patterns at varying nasal pressures) has become an integral part of DISE to select parties for HGNS at multiple institutions. Nevertheless, changes in upper airway collapsibility in response HGNS may differ significantly between patients. This stud will examine if changes in upper airway patency with direct genioglossus muscle stimulation at the time of DISE predicts successful treatment with HGNS as defined by a 50% reduction on apnea-hypopnea index (AHI) and an on-treatment AHI \<20.
Who can join: Review the eligibility criteria below.
Location: Johns Hopkins Hospital — Baltimore, Maryland
Age range: 18 Years
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📍 All Participating Trial Locations (1 Sites)
- Johns Hopkins Hospital — Baltimore, Maryland
📞 Contact the Study Coordinator
Phone: 410614245
Email: kmotz1@jh.edu
Coordinator details come directly from the registered NIH protocol. Confirm the study is still recruiting before traveling.
💰 Cost, Insurance & Patient Rights
- 100% Free Items: The investigational treatment and protocol-required procedures are supplied at zero cost by the sponsor.
- Routine Patient Care: Under federal law (ACA § 2709) and many state statutes, routine care costs are covered during participation.
- Voluntary Participation: You may withdraw at any time without affecting your standard medical care.
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💡 How to Participate
- Check the checklist above to see if you may qualify.
- Contact the study coordinator using the phone/email above.
- Ask about the visit schedule, what is covered at no cost, and any travel support.
- Confirm with your own doctor before making a decision.