NCT05335083

CPAP and Glucose Metabolism in Non-Diabetic OSA Subjects

The Impact of CPAP on Glucose Metabolism in Moderate-Severe Obstructive Sleep Apnoea Patients Without Diabetes - An Observational Study

• Status: Not Yet Recruiting
• Phase: N/A
• Study type: Interventional
• Enrollment: 100 (estimated)
• Sponsor: Woolcock Institute of Medical Research · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

The purpose of the current study is to investigate whether alleviation of OSA by CPAP positively impacts glucose metabolism in non-diabetic patients.

Detailed description

Glucose metabolism in patients newly diagnosed with moderate-severe OSA and without diabetes will be monitored for two weeks prior to commencement of CPAP using a CGM. They will consume a 75g oral glucose drink fasted on waking twice during the two-week monitoring period, having consumed a standardised meal the evening prior. After establishing CPAP use for at least four weeks they will undergo the same protocol as for the observation period prior to commencing CPAP. Glucose metabolism will be monitored using an interstitial (skin based) glucose monitor.

Conditions

• Obstructive Sleep Apnea
• Pre-diabetes

Interventions

Type	Name	Description
DEVICE	CPAP	A positive CPAP intervention

Timeline

• Start date: 2025-07-01
• Primary completion: 2027-02-28
• Completion: 2027-02-28
• First posted: 2022-04-19
• Last updated: 2025-04-01

Locations

2 sites across 1 country: Australia