Upper Airway Stimulation Versus Continuous Positive Airway Pressure

March 24, 2020 updated by: Technical University of Munich

Selective Upper Airway Stimulation Compared to Continuous Positive Airway Pressure Therapy in Patients With Obstructive Sleep Apnea: a Prospective Cohort Study

Standard therapy in patients with obstructive sleep apnea (OSA) is continuous positive airway pressure (CPAP). 30% to 50% are not adherent to this therapy and need an alternative treatment. Hypoglossal nerve stimulation or selective upper airway stimulation has been developed since several years. The aim of this clinical trial is to compare both treatments with each other.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

6% to 13% of the western industrialized population suffer from obstructive sleep apnea (OSA). During sleep in the pharyngeal airway a relaxation of the muscles occurs with increasing depth of sleep. Finally, this relaxation, due to the anatomical conditions, lead to obstructions of the respiratory tract, resulting in respiratory arrest (apnea) and minor respiratory changes such as hypopneas or flow limitations. The symptoms of this disease manifest themselves with varying degrees. Increased daytime sleepiness, snoring, and increased risk of cardiovascular disease can result. A significant reduction in overall quality of life can be associated with OSAS. The gold standard treatment for obstructive sleep apnea is CPAP (continuous positive airway pressure). But only about 50% to 70% of patients continue to use their device after 2 years of initial CPAP therapy. This means that 30% to 50% of patients are no longer cared for their obstructive sleep apnea. A certain proportion of younger patients, in particular, reject nocturnal ventilation therapy with CPAP from the beginning. For these patients selective upper airway stimulation (UAS) is a therapy option.

Therefore the patient receives surgically a subcutaneous stimulation device under the clavicle, which receives a signal from a respiratory sensor to selectively stimulate the hypoglossal nerve. The respiratory sensor is located in the 4th or 5th intercostal space between the patient's external and internal rib muscles. This can be used to record the patient's breathing, which allows a matched stimulation of the hypoglossal nerve. The actual stimulation lead is attached to the medial branches of the hypoglossal nerve, which are responsible for the protrusion of the tongue, in order to enable appropriate stimulation.

In this prospective cohort study, selective upper airway stimulation (UAS) will now be compared with CPAP therapy. Patients receiving CPAP therapy are compared to UAS patients who receive an upper airway stimulation. Both methods are procedures established in clinical routine, and during this investigation, the general clinical course is not deviated. Randomization does not occur because CPAP therapy is a conservative therapy and UAS therapy is a surgical therapy. Furthermore, for UAS therapy, there must be a CPAP incompliance, so that a surgical concept is justified. The CPAP group should comply with the body mass index and age of the UAS group.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
227

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Germany
    • Bavaria
      • Munich, Bavaria, Germany, 81667
        • Technical University of Munich

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • All consecutive patients who either received UAS implantation (Inspire therapy) in our Department of Otorhinolaryngology, Head and Neck Surgery at the Klinikum rechts der Isar and all patients who received a CPAP therapy since July 2013, are invited to participate in this clinical examination.

Exclusion Criteria:

  • patients with the age under 18 years

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Group 1 (CPAP)
Patient, who are receiving a CPAP
Device: continuous positive airway pressure
One group of patients with CPAP
Experimental: Group 2 (UAS)
Patient, who are receiving a device for upper airway stimulation
Device: upper airway stimulation
One group of patients with UAS
Other Names:
  • Inspire

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
AHI
Time Frame: reduction from baseline to 12 months
Apnea Hypopnea Index measured in events per hour
reduction from baseline to 12 months
ODI
Time Frame: reduction from baseline to 12 months
Oxygen desaturation index measured in events per hour
reduction from baseline to 12 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
ESS
Time Frame: improvement from baseline to 12 months
Epworth Sleepiness Scale
improvement from baseline to 12 months
FOSQ
Time Frame: improvement from baseline to 12 months
Functional Outcome of Sleep Questionnaire
improvement from baseline to 12 months
Usage
Time Frame: usage hours per night at 12 months
Usage Hour per Night
usage hours per night at 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Technical University of Munich

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 6, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 30, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 27, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 27, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 28, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2020

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 24, 2020

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • UAS vs. CPAP

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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