A Post-market Clinical Follow up of the Genio® System for the Treatment of Obstructive Sleep Apnea in Adults (EliSA)

March 2, 2026 updated by: Nyxoah S.A.

A Post-market Clinical Follow up of the Genio® System for the Treatment of Obstructive Sleep Apnea in Adults.

The primary objective of this study is to confirm the safety and clinical effectiveness of the Genio® system in moderate to severe Obstructive Sleep Apnea (OSA) adult patients over a period of 5 years post-surgery.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

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

This study is a multicenter, prospective single arm PMCF. Following activation of the Genio® system between 6 to 10 weeks post-surgery, patients will be followed at 3 months, 6 months, 9 months, 12 months and then every year for a total period of 5 years after surgery. Phone calls follow-up will be performed at Month 18, Month 30, Month 42 and Month 54.

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 (Estimated)

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.
110

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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • Belgium
      • Antwerp, Belgium, 2650
        • Universitair Ziekenhuis Antwerpen
      • Antwerp, Belgium, 2170
        • Ziekenhuis Netwerk Antwerpen - ZNA Jan Palfijn
  • France
      • Angers, France, 49933
        • CHU - Angers
      • Créteil, France, 94010
        • Hôpital Henri-Mondor AP-HP
      • Lille, France, 59800
        • Hôpital privé La Louvière
      • Montpellier, France, 34070
        • Clinique Beau-Soleil
      • Paris, France, 75020
        • Hôpital Tenon AP-HP
      • Paris, France, 75018
        • Hôpital Bichat, Assistance Publique - Hôpitaux de Paris
      • Paris, France, 75019
        • CEREVES Paris Jean Jaurès - Centre du sommeil
      • Rennes, France, 35000
        • Clinique Mutualiste de la Sagesse
      • Rennes, France, 35700
        • Polyclinique Saint Laurent
      • Toulouse, France, 31400
        • CHU Toulouse
  • Germany
      • Hamburg, Germany, 21075
        • Asklepios Klinikum Harburg, Abt. für HNO-Heilkunde, Kopf- und Halschirurgie
      • Jena, Germany, 07747
        • HNO-Klinik des Universitätsklinikums Jena
      • Mannheim, Germany, 68167
        • Klinik für HNO-Heilkunde, Kopf- und Halschirurgie, Schlafmedizinisches Zentrum
      • München, Germany, 81675
        • Klinikum rechts der Isar der TU München
      • Wuppertal, Germany, 42283
        • Helios Universitätsklinikum Wuppertal,Klinik für Hals-Nasen-Ohrenheilkunde, Kopf- und Halschirurgie
  • Netherlands
      • Amsterdam, Netherlands, 1061 AE
        • Onze Lieve Vrouwe Gasthuis
  • Switzerland
      • Liestal, Switzerland, 4410
        • Kantonsspital Baselland, Klinik für HNO-Krankheiten, Kopf- und Gesichtschirurgie

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

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Body Mass Index (BMI) < 35 kg/m2
  • AHI between 15 to 65 events/hour documented by the closest PSG performed at the time of the patient ICF signature and within maximum 12 months of screening and fulfilling the required technical criteria or during the screening phase.
  • Has either not tolerated, has failed or refused Positive Airway Pressure (PAP) or Mandibular Advancement Device (MAD) treatments.

Exclusion Criteria:

  • Inadequately treated sleep disorders other than OSA that would confound functional sleep assessment;
  • Taking medication that in the opinion of the Investigator may alter consciousness, the pattern of respiration, or sleep architecture;
  • Major anatomical or functional abnormalities that would impair the ability of the Genio® system to treat OSA;
  • Inadequately treated psychiatric disease that prevent patient compliance with the requirements of the investigational study testing;
  • Life expectancy < 12 months;
  • Participation in another clinical study (excluding registries) during the study period (3 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: N/A
  • Interventional Model: Single Group 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.
Experimental: Genio® system therapy
Following activation of the Genio® system at 8 weeks post-surgery, patients will be followed at 12 weeks, 6 months, 9 months, 12 months and then every year for a total period of 5 years after surgery.
Device: Genio® system therapy
Hypoglossal nerve stimulation system

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
Change in Apnea-Hypopnea Index from baseline
Time Frame: 12 months post-surgery
Change in Apnea-Hypopnea Index (AHI) from baseline as measured by sleep lab
12 months post-surgery
Change in the quality of life measured by the Functional Outcomes of Sleep Questionnaire
Time Frame: 12 months post-surgery
Change in the quality of life measured by the Functional Outcomes of Sleep Questionnaire (FOSQ)
12 months post-surgery
Incidence of device-related Serious Adverse Events (SADEs)
Time Frame: 12 months post-surgery
Incidence of device-related Serious Adverse Events (SADEs)
12 months post-surgery

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.
Nyxoah S.A.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Joachim T. Maurer, MD, Klinik für HNO-Heilkunde, Mannheim

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.
September 1, 2019

Primary Completion (Estimated)

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.
October 30, 2026

Study Completion (Estimated)

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.
October 1, 2030

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).
July 18, 2019

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.
July 21, 2019

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.
July 24, 2019

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 4, 2026

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 2, 2026

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.
February 1, 2026

More Information

Terms related to this study

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.
  • CL-GEN-002068

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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