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NCT Number: NCT06769607

Evaluation of a Novel Auto-Adjusting Positive Airway Pressure Algorithm for the Treatment of Obstructive Sleep Apnea Clinical Study

This study aims to assess the effectiveness of an investigational algorithm in the treatment of obstructive sleep apnea.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

ResMed Ltd

Bella Vista, New South Wales, 2153, Australia

Location status: Recruiting

Location contact

Sumudu Herath

CONTACT

[email protected]

+61 288841722

About this study

This is a blind, randomized cross over (or single arm depending on phase) study aiming to show that the new algorithm is efficacious in the treatment of obstructive sleep apnea (OSA). Furthermore, it allows for the comparison of relevant objective data parameters from the device and subjective outcomes in comparison to an established algorithm.

This study is planned in two phases. Phase 1 aims to gain confidence that the algorithm is functioning as intended, and allow for minor modifications to be made to the software before proceeding to Phase 2.

Phase 2 aims to assess the performance of the algorithm in a broader range of participants to capture data and subjective feedback comparing the users experience between the new algorithm and the control algorithm.

After the conclusion of phase 1 and 2, an optional extended trial period will be offered to participants who indicate that the experience on the investigational device was satisfactory and would like to continue using the algorithm will be included in an optional extended trial period.

The study will be conducted in the home environment. Participants who met the inclusion/exclusion criteria will be contacted. Participants will be explained the details of the trial and those who wish to take part will be invited to a selected site for the first study visit. In addition, subjects may be asked if they are willing to wear a wearable during both day and night (unless charging) for the duration of the study iteration. The wearable will be a commercially available wellness wearable that collects data to provide information about sleep and activity.

Visit 1 Participants will provide written informed consent. Participants will be set up on the algorithm they are first randomized to. If the participant and assessor are happy to proceed, the participants will take the device home to trial the first randomized algorithm, participants will be asked to complete a questionnaire regarding their therapy experience.

Visit 2 Participants will then be switched to the alternative algorithm and take the study device home to test. After trialling the second algorithm, participants will be asked to complete a questionnaire regarding their therapy experience and overall preferences.

Note: Visit 2 is not required if a cross over is not required in Phase 1.

Visit 3 The participant will return the investigational device to the assessor. The participants' questionnaire responses will be reviewed. Participants will be reimbursed. This concludes the participation in the study.

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

  • Participants willing to give written informed consent.
  • Participants who can read and comprehend English.
  • Participants who ≥ 18 years of age
  • Participants who have been using a ResMed AirSense 10 or 11 device.
  • Participants currently using AutoSet (APAP) mode.
  • Participants being established on PAP therapy for the treatment of OSA for approximately >3 months.
  • Participants who can participate in the study for up to 8 weeks.

Exclusion criteria

  • Participants using Bilevel flow generators.
  • Participants using CPAP, AutoSet for Her
  • Participants who are or may be pregnant.
  • Participants with a preexisting lung disease/ condition that would predispose them to pneumothorax (for example: COPD, lung cancer; fibrosis of the lungs; recent (< 2years) case of pneumonia or lung infection; lung injury.
  • Participants believed to be unsuitable for inclusion by the researcher.
  • Participants who are currently enrolled in other medical clinical studies

Treatment and study plan

Investigational algorithm

Device

Investigational algorithm developed for the treatment of Obstructive Sleep Apnea.

Control algorithm

Device

Released algorithm intended for the treament of Obstructive Sleep Apnea

Primary outcomes

  1. Comparison of the algorithm efficacy (AHI) to a clinically relevant data

    Time frame: 8 weeks

    The mean residual AHI of the investigational algorithm will be compared against an excepted clinical benchmark of 5 using a one sample t test.

Secondary outcomes

  1. Secondary endpoint: Device usage

    Time frame: From enrolment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm.

    Objective statistics on "Device usage" in hours per day (Hrs) stored in the PAP device will be downloaded. These parameters will be captured from each arm of testing and results will be analysed and compared.

  2. Secondary endpoint: Leak

    Time frame: From enrollment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm.

    Objective statistics on "Leak" in litres per minute (L/min) stored in the PAP device will be downloaded. These parameters will be captured from each arm of testing and results will be analysed and compared.

  3. Secondary endpoint: Pressure

    Time frame: From enrolment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm.

    Objective statistics on "Pressure" in centimeters of water (cmH2O) stored in the PAP device will be downloaded. These parameters will be captured from each arm of testing and results will be analysed and compared.

  4. Secondary endpoint: Subjective scores

    Time frame: From enrolment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm and/or Criterion score of 6.

    Subjective scores will be collected from participants on each item (e.g. comfort, breathign comfort, ease of falling asleep). Scores will be collected using an 11-point Likert Scale where a score of 10 is considered very favorable whereas score of 0 is considered very unfavorable.

  5. Wearable data - Sleep metrics

    Time frame: From enrolment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm. Objective statistics on sleep metrics measured via the wearable will be downloaded. These parameters will be captured from each arm of testing and results will be analysed and compared.

  6. Wearable data - Activity Metrics

    Time frame: From enrolment to the end of each study arm (up to 8 weeks)

    Hypothesis: the investigational algorithm will be equivalent or better than the comparison algorithm. Objective statistics on activity metrics measured via the wearable will be downloaded. These parameters will be captured from each arm of testing and results will be analysed and compared.

Study contacts

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

Sumudu Herath

CONTACT

[email protected]

+61 288841722

Sponsors and collaborators

Lead sponsor

ResMed

Industry

Registry information

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jan 10, 2025
Registry last updated
Dec 2, 2025

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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