NCT03980158

Brief Summary

Upper airway stimulation (UAS) is an effective surgical alternative for patients with obstructive sleep apnea (OSA) who fail continuous positive airway pressure (CPAP) therapy. This stimulation could lead to alterations in tongue strength and fatigability which could alter treatment outcome. The aim of the study is to investigate if UAS alters tongue strength and fatigability.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
103

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Mar 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2018

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 16, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 16, 2018

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

May 26, 2019

Completed
15 days until next milestone

First Posted

Study publicly available on registry

June 10, 2019

Completed
Last Updated

June 10, 2019

Status Verified

June 1, 2019

Enrollment Period

9 months

First QC Date

May 26, 2019

Last Update Submit

June 6, 2019

Conditions

Outcome Measures

Primary Outcomes (2)

  • Tongue protrusion strength

    Tongue protrusion strength (peak pressure in kPa)

    Up to 60 months after implanation

  • Tongue fatigability

    Time to task failure during 50% of peak pressure contraction in seconds

    Up to 60 months after implanation

Study Arms (3)

Upper airway stimulation group

OSA group with conservative / no treatment

Test group without OSA

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The study population consists of three groups: the first group comprises of patients that have been implanted with selective hypoglossal nerve stimulation system (Inspire II Upper Airway Stimulation System, Inspire Medical Systems, Maple Grove, USA). The second group consists of confirmed OSA patients either being treated conservatively or without treatment. The test group consists of participants with no medical history for OSA and Epworth Sleepiness Scale (ESS) below 11.

You may qualify if:

  • years old or older
  • upper airway stimulation group: Upper airway stimulation system implanted at least 4 weeks ago
  • OSA group: OSA confirmed by 18-channel inpatient overnight polysomnography (PSG)
  • test group: No medical history for OSA and Epworth Sleepiness Scale (ESS) below 11

You may not qualify if:

  • history of a neuromuscular disorder
  • previous tongue surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Ear Nose Throat

Munich, Bavaria, 81675, Germany

Location

Related Publications (1)

  • Wirth M, Unterhuber D, von Meyer F, Hofauer B, Ott A, Edenharter G, Eckert DJ, Heiser C. Hypoglossal nerve stimulation therapy does not alter tongue protrusion strength and fatigability in obstructive sleep apnea. J Clin Sleep Med. 2020 Feb 15;16(2):285-292. doi: 10.5664/jcsm.8184. Epub 2020 Jan 13.

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 26, 2019

First Posted

June 10, 2019

Study Start

March 1, 2018

Primary Completion

November 16, 2018

Study Completion

November 16, 2018

Last Updated

June 10, 2019

Record last verified: 2019-06

Locations