Using CPAP to treat high blood pressure in patients with autonomic failure
Official title: Treatment of Supine Hypertension in Autonomic Failure With Continuous Positive Airway Pressure
Run by Vanderbilt University Medical Center · NCT03312556 · Data updated 2026-11-12
This study tests if using a CPAP machine at night can help lower blood pressure in patients with autonomic failure who have high blood pressure when lying down.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 85 Years |
| Sex | All |
| Enrollment | 12 (estimated) |
| Sponsor | Vanderbilt University Medical Center Academic / other |
| Locations | 1 site (Nashville, Tennessee) |
| Status | Recruiting |
| Started | September 21, 2017 |
| Main results expected | December 21, 2026 |
| Study ends | January 21, 2027 |
| Registry record updated | November 9, 2026 |
| Trial ID | NCT03312556 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include patients diagnosed with autonomic failure who experience supine hypertension.
✕Probably not a fit
Patients with serious underlying conditions such as heart failure or a history of stroke 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 study investigates the effectiveness of continuous positive airway pressure (CPAP) in reducing blood pressure in patients suffering from supine hypertension due to autonomic failure. Supine hypertension is a common issue in these patients, complicating their treatment for orthostatic hypotension. The study will apply varying levels of CPAP pressure to assess its acute impact on blood pressure. If successful, CPAP may be used as a nighttime treatment for these patients to manage their blood pressure more effectively.
Why it matters
Potential benefit: If successful, this approach could significantly improve blood pressure management in patients with autonomic failure and supine hypertension.
How similar studies have gone: While CPAP is commonly used for sleep apnea, its application for treating supine hypertension in autonomic failure is novel and has not been extensively tested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patients with autonomic failure and with supine hypertension from all races Exclusion Criteria: * All medical students * Pregnant women * High-risk patients (e.g. heart failure, symptomatic coronary artery disease, liver impairment, history of stroke or myocardial infarction) * History of serious allergies or asthma.
Where it's running
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Autonomic Dysfunction Center/ Vanderbilt University Medical Center
Nashville, Tennessee, United States Recruiting
Study contacts
- Principal investigator: Italo Biaggioni, MD — Vanderbilt University Medical Center
- Study coordinator: Bonnie K Black, RN
- Email: autonomics@vumc.org
- Phone: 615-343-6862
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Using CPAP to treat high blood pressure in patients with autonomic failure
This study tests if using a CPAP machine can help people with autonomic failure lower their nighttime blood pressure when they lie down.
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Raising the head of the bed to lower blood pressure in patients with autonomic failure
This study is testing if raising the head of the bed can help people with autonomic failure lower their high blood pressure while lying down.
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Using a CO2 rebreather to improve blood pressure in patients with neurogenic orthostatic hypotension
This study is testing whether a CO2 rebreather can help people with neurogenic orthostatic hypotension improve their blood pressure and feel better when standing up.
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Using an accelerometer to measure symptoms of neurogenic orthostatic hypotension
This study is testing if using a device to track how long people with neurogenic orthostatic hypotension can stay upright helps show if their medication works better than a placebo.
-
Imaging with [18F]F-DOPA in patients with autonomic failure
This study is testing a special imaging technique to see if it can help identify early signs of neurodegenerative diseases in people with autonomic failure.
-
Heat application for managing high blood pressure in patients with autonomic failure
This study is testing if using a heating pad on the belly at night can help people with autonomic failure lower their high blood pressure while lying down.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.