Exploring the link between obstructive sleep apnea and nighttime urination

The Academic Research Project Studies the Relationship Between Obstructive Sleep Apnoea and the Occurrence of Nocturia.

University Hospital Ostrava · NCT06239883

This study is trying to see if there’s a connection between obstructive sleep apnea and waking up at night to urinate in people who have sleep apnea.

Quick facts

Study typeObservational
Enrollment100 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity Hospital Ostrava (other)
Locations1 site (Ostrava, Moravian-Silesian Region)
Trial IDNCT06239883 on ClinicalTrials.gov

What this trial studies

This observational study investigates the relationship between obstructive sleep apnea (OSA) and nocturia in patients diagnosed with OSA. Participants will undergo routine examinations and complete voiding diaries over a 48-hour period to assess urinary patterns. The primary aim is to identify any correlations between specific parameters of sleep apnea and the occurrence of nocturia, potentially shedding light on this common yet often overlooked symptom in OSA patients.

Who should consider this trial

Good fit: Ideal candidates for this study are patients diagnosed with obstructive sleep apnea who have an Apnea-Hypopnea Index greater than 15.

Not a fit: Patients using diuretics, those with malignancies, or pregnant individuals may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could enhance understanding of nocturia in patients with obstructive sleep apnea, leading to improved management strategies.

How similar studies have performed: While the relationship between sleep apnea and nocturia has been explored in some studies, this specific observational approach is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* patients diagnosed obstructive sleep apnoea (OSA )
* Apnea-Hypopnea Index (AHI) \> 15
* ability to fill in the voiding diaries
* signed informed consent

Exclusion Criteria:

* patients using diuretics
* patients with malignancies
* pregnancy

Where this trial is running

Ostrava, Moravian-Silesian Region

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: Obstructive Sleep Apnea, Nocturia, Lower urinary tract symptoms, Voiding diary, Nocturnal polyuria

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.