Adherence and Outcome of Upper Airway Stimulation (UAS) for OSA International Registry

Active, not recruiting

• Conditions: Obstructive Sleep Apnea

• Registration Number: NCT02907398
• Lead Sponsor: Inspire Medical Systems, Inc.

Brief Summary

Inspire intends to conduct this registry to: 1) collect Inspire therapy clinical evidence in the clinical practice setting; 2) collect additional information on the effectiveness, use and safety in the commercial setting; and 3) engage physician customers to report the collective outcome within a group of properly trained programs that utilize Inspire therapy on a regular basis.

In addition, a sub-study will be conducted under this Registry at a limited number of Registry centers and will include a cohort of Registry patients and a cohort of patients who have not received the Inspire therapy device due to denial of insurance coverage. The two sub-study cohorts' quality of life and AHI data will be compared.

Detailed Description

This registry is a multi-center, prospective, observational registry, conducted in the United States and Europe. Some data may be collected retrospectively in patients currently implanted (implanted prior to enrollment) through the 12-month follow-up time frame. The CE-marked and FDA-approved Inspire system will be used within its intended use, allowing for of use of any future approved system component models. This protocol does not include any additional stressful or invasive tests, which are not a part of standard of care.

Study Timeline

• Study First Submitted: 2016-08-30
• Study First Submitted QC: 2016-09-15
• Study First Posted: 2016-09-20
• Study Start: 2016-10-19
• Status Verified: 2023-03
• Last Update Submitted: 2025-06-16
• Last Update Posted: 2025-06-19
• Primary Completion: 2025-09
• Study Completion: 2025-12

Recruitment & Eligibility

• Status: ACTIVE_NOT_RECRUITING
• Sex: All
• Target Recruitment: 5000

Inclusion Criteria

Any patient implanted with or receiving an Inspire implant, who meets the following criteria, is eligible to participate in the registry:

1. Capable of giving informed consent, as required per institution
2. Willing to return for routine clinic visits as required for Inspire therapy management

Exclusion Criteria

Any patient who meets any of the following criteria will not be eligible to participate in the registry

1. Has a life expectancy of less than 1 year
2. Any reason the clinician deems patient is unfit for participation in the study

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Change in Apnea Hypopnea (AHI) from Baseline to 12-Months	Baseline through 12 months	Apnea Hypopnea Index (AHI) is a measure of OSA severity. The AHI will be determined by the AHI score at the post-titration visit compared with the pre-implant baseline score.
Change in Epworth Sleepiness Scale (ESS) from Baseline to 12 Months	Baseline through 12 months	The Epworth Sleepiness Scale (ESS) is a validated instruction that rates a subject's daytime sleepiness. ESS scores range from 0 to 24, with a lower score indicating less daytime sleepiness. An ESS score of 10 or less is equivalent to the normalized population. The ESS efficacy endpoint will be determined by the ESS score at the 12-month follow-up as compared to baseline.

Secondary Outcome Measures

Name	Time	Method
Therapy Adherence	Through 12 months	Therapy use, reported as hours of use per week, is record by Inspire device and can be collected upon interrogation of the device in the clinic. This value can be used to quantify device use and adherence over time.
Advance or Additional Titrations	Through 12 months	The patient will report the number of in-office or sleep lab device titrations completed.
Patient Experience with Therapy (PET)	Through 12 months	The PET is a survey deigned to collect information about patients' experience with the Inspire therapy. Information will be collected once the therapy is activated about relative satisfaction with the therapy over time.
Insomnia Severity Index (ISI)	Baseline through 12 months	The Insomnia Severity Index (ISI) is a 7 item self-report instrument that measures patient perception of both nocturnal and diurnal symptoms of insomnia. Scores range from 0 to 28, with a lower score indicating less severe insomnia.
Physical Assessment	Baseline through 12 months	Blood pressure, and height (in either cm or in) \& weight (in either kg or lbs) will be used to calculate Body Mass Index at baseline and through study completion.
Clinical Global Impression (CGI-I)	Baseline through 12 months	The Clinical Global Impression (CGI-I) is a clinician assessment of how much the patient's illness has improved or worsened relative to a baseline state at the beginning of the intervention. During the assessment the physician rates the patient's obstructive sleep apnea by selecting 1 of 7 categories that range from very much worse to very much improved (in comparison to baseline).
Device Data Collection	Through 12 months	Device programming and adjustment data recorded during follow-up visits will be collected from physician and patient programmers.

Trial Locations

Locations (62)

The University of Alabama for the University of Alabama at Birmingham; 🇺🇸 Birmingham, Alabama, United States

Valley Sleep Center; 🇺🇸 Mesa, Arizona, United States

Mayo Clinic; 🇺🇸 Rochester, Minnesota, United States

Valley ENT; 🇺🇸 Scottsdale, Arizona, United States

The Neurology Center of Southern California; 🇺🇸 Carlsbad, California, United States

University of Southern California; 🇺🇸 Los Angeles, California, United States

Stanford University Medical Center; 🇺🇸 Redwood City, California, United States

University of Colorado Denver; 🇺🇸 Aurora, Colorado, United States

Middlesex Hospital; 🇺🇸 New Haven, Connecticut, United States

MedStar Washington Hospital Center; 🇺🇸 Washington, District of Columbia, United States

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