Effects of CPAP Therapy on Blood Pressure and Heart Rate Variability in Obstructive Sleep Apnea
Public ClinicalTrials.gov record NCT04712656. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Effects of CPAP Therapy on Blood Pressure and Heart Rate Variability in Obstructive Sleep Apnea: Role of Symptom Subtypes
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
The primary objective of this study is to determine whether the effect of continuous positive airway pressure (CPAP) therapy on 24-hour mean blood pressure (BP) in patients with obstructive sleep apnea (OSA) varies between symptom phenotypes.
Study identification
- NCT ID
- NCT04712656
- Recruitment status
- Active, not recruiting
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 1,739 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 30 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 22, 2021 (Actual)
- Primary completion
- Mar 1, 2031 (Estimated)
- Completion
- Mar 1, 2032 (Estimated)
- Last update posted
- Oct 16, 2026
2021 – 2032
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Martha Morehouse Medical Pavilion, Suite 2600 | Columbus | Ohio | 43221 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04712656, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Oct 16, 2026 · Synced Oct 28, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT04712656 live on ClinicalTrials.gov.