Understanding sleep apnea characteristics in Korean patients

Clinical Characteristics of Patients With Sleep Apnea in Korea: a Prospective Cohort Study

Seoul National University Hospital · NCT04186078

This study is trying to understand sleep apnea in Korean patients by collecting health information and sleep tests from people who might have the condition.

Quick facts

Study typeObservational
Enrollment1000 (estimated)
Ages19 Years and up
SexAll
SponsorSeoul National University Hospital (other)
Locations1 site (Seoul)
Trial IDNCT04186078 on ClinicalTrials.gov

What this trial studies

This observational study aims to gather clinical data on patients with sleep apnea syndromes in Korea. Participants suspected of having sleep apnea will be recruited based on specific symptoms and will undergo polysomnography or respiratory polygraphy for diagnosis. Those diagnosed with sleep apnea will be followed regularly, while those without the condition will only have a baseline visit. Blood samples will be collected from participants who consent to contribute to further research.

Who should consider this trial

Good fit: Ideal candidates are individuals exhibiting symptoms of sleep apnea such as snoring, excessive daytime sleepiness, and difficulty sleeping.

Not a fit: Patients who do not exhibit symptoms of sleep apnea or have an apnea-hypopnea index of less than 5/hour may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of sleep apnea in the Korean population, leading to better diagnosis and management strategies.

How similar studies have performed: While there have been numerous studies on sleep apnea globally, this specific focus on the Korean population may provide novel insights.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Participants who are suspected of sleep apnea due to symptoms such as snoring, witnessed apneas, waking up with a choking sensation, excessive sleepiness, non-restorative sleep, difficulty initiating or maintaining sleep, fatigue or tiredness, and morning headache

Exclusion Criteria:

* None

Where this trial is running

Seoul

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.

View on ClinicalTrials.gov →

Conditions: Sleep Apnea Syndromes

Last reviewed 2026-05-15 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.