Examining the impact of sleep disordered breathing on heart health during pregnancy

SLEEP: Sleep Disordered Breathing, Endothelial Function, and Adverse Events in Pregnancy

Observational University of Alberta · NCT05908591

This study looks at how breathing problems during sleep can affect heart health in pregnant people and whether staying active can help protect their hearts.

Quick facts

Study typeObservational
Enrollment109 (estimated)
Ages18 Years and up
SexFemale
SponsorUniversity of Alberta Academic / other
Locations1 site (Edmonton, Alberta)
Trial IDNCT05908591 on ClinicalTrials.gov

What this trial studies

This observational study investigates how sleep disordered breathing affects cardiovascular health in pregnant individuals. Participants will undergo an 8-day testing protocol at two points during their pregnancy, which includes at-home sleep testing, vital signs monitoring, physical activity tracking, and laboratory assessments. The study aims to determine the relationship between sleep disordered breathing and heart function, as well as the potential protective effects of physical activity during pregnancy.

Who should consider this trial

Good fit: Ideal candidates are pregnant individuals aged 18 and older who are between 20-24 weeks gestation at enrollment.

Not a fit: Patients who have a previously diagnosed sleep disorder or have worked shift work past 11pm in the previous month may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved cardiovascular health monitoring and interventions for pregnant individuals experiencing sleep disordered breathing.

How similar studies have performed: While there is existing research on sleep disordered breathing and cardiovascular health, this specific approach in pregnant individuals is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* over 18 years of age
* pregnant (20-24 weeks gestation at enrollment)

Exclusion Criteria:

* worked shift work past 11pm in the previous month
* previously diagnosed with a sleep disorder by a physician

Where this trial is running

Edmonton, Alberta

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.
Conditions Pregnancy RelatedSleep-Disordered BreathingCardiovascular Health
Last reviewed 2026-06-10 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.