Clinical trial Recruiting at 1 site Observational Ages 18 and up

Investigating the link between obstructive sleep apnea and pulmonary hypertension

Official title: Prevalence, Phenotypes, Predictors and Prognostic Implication of Obstructive Sleep Apnea in Pulmonary Hypertension

Run by Chinese Pulmonary Vascular Disease Research Group · NCT05595200 · Data updated 2026-11-12

This study looks at how common sleep apnea is in adults with pulmonary hypertension and how it affects their health.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment480 (estimated)
SponsorChinese Pulmonary Vascular Disease Research Group
Academic / other
Locations1 site (Beijing)
StatusRecruiting
StartedMay 1, 2020
Main results expectedDecember 31, 2028
Study endsDecember 31, 2028
Registry record updatedOctober 26, 2026
Trial IDNCT05595200 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older who have been diagnosed with pulmonary hypertension through right heart catheterization.

Probably not a fit

Patients who are pregnant, have central sleep apnea, or have previously received treatment for sleep-disordered breathing may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study aims to explore the prevalence, phenotypes, and predictors of obstructive sleep apnea (OSA) in patients diagnosed with pulmonary hypertension. Adult participants will undergo an overnight cardiorespiratory study using a Level III portable device to assess their sleep patterns and related physiological parameters. The study will categorize patients into OSA and non-OSA groups based on their apnea-hypopnea index (AHI) and collect data on hypoxemic parameters and baseline clinical characteristics. The goal is to determine the impact of OSA on clinical outcomes in this patient population.

Why it matters

Potential benefit: If successful, this study could improve risk assessment and therapeutic recommendations for patients with pulmonary hypertension by identifying the prognostic implications of obstructive sleep apnea.

How similar studies have gone: Other studies have indicated a higher prevalence of obstructive sleep apnea in patients with pulmonary hypertension, suggesting that this approach could yield valuable insights.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Aged ≥18 years old
* Diagnosed with pulmonary hypertension by right heart catheterization

Exclusion Criteria:

* Pregnancy
* Central sleep apnea
* Previous treatment for sleep-disordered breathing
* Unavailable or incomplete sleep data
* Requiring nocturnal oxygen supplementation

Where it's running

  • Center for Respiratory and Pulmonary Vascular Diseases, Fuwai hospital, CAMS & PUMC
    Beijing, China
    Recruiting

Study contacts

  • Principal investigator: Zhihong Liu — Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College
  • Study coordinator: Zhihong Liu, M.D., Ph.D
  • Email: zhihongliufuwai@163.com
  • Phone: +861088396590

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.