Follow-up on the Genio™ System for treating sleep apnea

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

NA · Nyxoah S.A. · NCT04031040

This study is testing how well the Genio™ system works and how safe it is for adults with moderate to severe sleep apnea over five years after their surgery.

Quick facts

PhaseNA
Study typeInterventional
Enrollment110 (estimated)
Ages18 Years and up
SexAll
SponsorNyxoah S.A. (industry)
Locations23 sites (Antwerp and 22 other locations)
Trial IDNCT04031040 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the safety and effectiveness of the Genio™ system in adults with moderate to severe obstructive sleep apnea (OSA) over a 5-year period following surgery. It is a multicenter, prospective, single-arm post-market clinical follow-up, where patients will be monitored at various intervals after the activation of the device. The study includes regular follow-ups through phone calls and in-person visits to assess the long-term outcomes of the treatment.

Who should consider this trial

Good fit: Ideal candidates for this study are adults with a BMI less than 35 kg/m2 and an apnea-hypopnea index (AHI) between 15 to 65 events/hour who have not tolerated or have failed other treatments.

Not a fit: Patients with significant comorbidities that contraindicate surgery or those with a life expectancy of less than 12 months may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a new effective treatment option for patients suffering from obstructive sleep apnea who have not benefited from traditional therapies.

How similar studies have performed: Other studies on similar devices have shown promise, but this specific follow-up on the Genio™ system is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Body Mass Index (BMI) \< 35 kg/m2
* AHI between 15 to 65 events/hour documented by a PSG during the screening phase.
* Has either not tolerated, has failed or refused Positive Airway Pressure (PAP) or Mandibular Advancement Device (MAD) treatments.

Exclusion Criteria:

* Night shift worker
* Significant comorbidities that contraindicates surgery
* Life expectancy \< 12 months
* Participation in another clinical study (excluding registries) during the study period (3 years).

Where this trial is running

Antwerp and 22 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Obstructive Sleep Apnea

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.