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NCT Number: NCT04031040

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.

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This study is active but is not currently recruiting participants.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Universitair Ziekenhuis Antwerpen, Antwerp, Belgium

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About this study

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.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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).

Treatment and study plan

Genio® system therapy

Device

Hypoglossal nerve stimulation system

Primary outcomes

  1. Incidence of device-related Serious Adverse Events (SADEs)

    Time frame: 12 months post-surgery

    Incidence of device-related Serious Adverse Events (SADEs)

  2. 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

  3. 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)

Sponsors and collaborators

Lead sponsor

Nyxoah S.A.

Industry

Registry information

Official study title

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

Acronym: EliSA

Important dates

Study start
2019
Primary completion
2026
Study completion
2030
First posted
Jul 24, 2019
Registry last updated
Mar 4, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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