Clinical trial Recruiting at 1 site Interventional Ages 18 to 85

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.

More Autonomic Failure trials

Quick facts

Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment12 (estimated)
SponsorVanderbilt University Medical Center
Academic / other
Locations1 site (Nashville, Tennessee)
StatusRecruiting
StartedSeptember 21, 2017
Main results expectedDecember 21, 2026
Study endsJanuary 21, 2027
Registry record updatedNovember 9, 2026
Trial IDNCT03312556 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

  • 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

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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.