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NCT Number: NCT07331285

Bi-lateral HGN Therapy in Real-World Patients -Post Approval Research Investigation

The objective of the BREATHE study is to demonstrate the continued safety and effectiveness of the Genio® System in treating subjects diagnosed with moderate to severe obstructive sleep apnea (OSA) who are intolerant to or failed/refused PAP treatments.

Recruiting

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Key information

Age range

22 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

PharmaDev Clinical Research Institute, LLC, Miami, Florida, United States

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About this study

BREATHE is a multicenter, prospective, single-arm, post-approval study. Following a baseline visit and implantation of the Genio® System 2.1, subjects will be asked to return for a therapy activation visit at approximately 8 weeks post-implant surgery.

The subject will have follow-up visits at 6 months, 9 months, 12 months and every 6-months thereafter up to 5 years post-implant surgery. Additional visits (for device titration or other reasons) are per standard of care and at the Investigator's discretion. Endpoints will be assessed at 12, 24, 36, 48 and 60 months.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Have an apnea-hypopnea index (AHI) greater than or equal to 15 and less than or equal to 65, measured on a full-night PSG performed no earlier than 2 years prior to enrollment (AHI4 and ODI4 available).
  • Be adults 22 years of age and older.
  • Have been confirmed to have failed, not tolerated, or be ineligible to be treated with current standard of care treatments for moderate to severe OSA.
  • Have pursued insurance pre-authorization for Genio® Therapy, recognizing that pre-authorization does not ensure payment, or demonstrate willingness to assume any out-of-pocket costs. The sponsor will not be responsible for treatment-related charges.
  • Agree to participate in the study and voluntarily sign and date an informed consent form.
  • Be willing and capable of complying with all study requirements, including specific lifestyle considerations, performing all follow-up visits, evaluation procedures and questionnaires for the whole duration of the trial.
  • Have a result of a Drug- Induced Sleep Endoscopy (DISE), no earlier than 2 years prior to enrollment.

Exclusion criteria

  • Combined central and mixed apnea-hypopnea index (AHI) greater than or equal to 25% of the total AHI.
  • Any functional or structural problem, medical illness or condition that would prevent or interfere with implantation, activation or continued use of the Genio® Therapy.
  • Have an implantable device which may be susceptible to unintended interaction with the Genio® System 2.1.
  • Women who are pregnant, planning to become pregnant or breastfeeding.
  • Any condition or procedure that has compromised neurological control of the upper airway.
  • Be part of the populations for which the safety and effectiveness of the Genio® System 2.1 has not been fully assessed:
  • Patients below 22 or above 75 years of age.
  • Patients with a Body Mass Index (BMI) above 32 kg/m2.
  • Patients with an Apnea Hypopnea Index (AHI) below 15 or over 65 events/hr.
  • Patients with Complete Concentric Collapse (CCC) at the soft palate level.

Treatment and study plan

This is a single arm study, all consented and eligible subjects will be implanted with the Genio® System 2.1

Device

Genio® System 2.1

Other names: Genio Therapy

Primary outcomes

  1. Change in Apnea Hypopnea Index (AHI4%)

    Time frame: 12 months

    Percentage of responders at 12 months based on AHI4

  2. Change in Oxyhemoglobin Desaturation Index (ODI4%)

    Time frame: 12 months

    Percentage of responders at 12 months based on ODI4

  3. Device related SAEs

    Time frame: 12 months

    Incidence of device-related Serious Adverse Events at 12 months post-surgery

  4. Device-related and procedure-related SAEs

    Time frame: 12 months

    Incidence of device-related and procedure-related SAEs at 12 months post-surgery

Secondary outcomes

  1. Mean change in AHI4

    Time frame: Baseline to 5 years

    Mean change in AHI4 from screening to 12, 24, 36, 48, and 60 months post-surgery.

  2. Mean change in ODI4

    Time frame: Baseline to 5 years

    Mean change in ODI4 from screening to 12, 24, 36, 48, and 60 months post-surgery.

  3. % responders AHI4

    Time frame: 2 years through 5 years

    Percentage of responders at 24, 36, 48, and 60 months based on AHI4 according to "Sher criteria".

  4. % responders ODI4

    Time frame: 2 years through 5 years

    Percentage of responders at 24, 36, 48 and 60 months based on ODI4

  5. Subject Satisfaction

    Time frame: 1 year through 5 years

    Subject reported satisfaction with therapy (measured via bespoke questionnaire) measured at 12, 24, 36, 48, and 60 months post-surgery

  6. Improvement in ESS

    Time frame: 1 year through 5 years

    Improvement in OSA-related symptoms (measured via Epworth Sleepiness Scale (ESS) questionnaire) measured at 12, 24, 36, 48, and 60 months post-surgery

  7. Change in health status

    Time frame: 1 year through 5 years

    Subject reported impression of change in health status (measured via Patient Global Impression of Change (PGIC) questionnaire) at 12, 24, 36, 48, and 60 months post-surgery.

  8. Clinician impression of change in Subject's health status

    Time frame: 1 year through 5 years

    Clinician impression of change in Subject's health status (measured via Clinician Global Impression of Change (CGIC) questionnaire) at 12, 24, 36, 48, and 60 months post-surgery.

  9. Device-related Serious Adverse Events

    Time frame: 2 years through 5 years

    Incidence of device-related Serious Adverse Events, as reported by Investigator and adjudicated by the CEC, at 24, 36, 48, and 60 months post-surgery.

Study contacts

Contact information is provided by the study sponsor or research team.

Alicia Castonguay

CONTACT

[email protected]

Lorin Pétré

CONTACT

[email protected]

+1 (908) 263-0228

Sponsors and collaborators

Lead sponsor

Nyxoah Inc.

Industry

Registry information

Acronym: BREATHE

Important dates

Study start
2026
Primary completion
2028
Study completion
2032
First posted
Jan 9, 2026
Registry last updated
Jun 22, 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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