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Study identifier: NCT05489575 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

CPAP for the Treatment of Supine Hypertension

Condition: Autonomic Failure · Pure Autonomic Failure · Multiple System Atrophy  ·  Sponsor: Vanderbilt University Medical Center

PhaseNA
Planned participants59
Who can joinAll sexes, 40 Years to 80 Years
Healthy volunteersNo

About this study

This study aims to learn about the effects of continuous positive airway pressure (CPAP) on people with autonomic failure and high blood pressure when lying down (supine hypertension) to determine if it can be used to treat their high blood pressure during the night. CPAP (a widely used treatment for sleep apnea) involves using a machine that blows air into a tube connected to a mask covering the nose, or nose and mouth, to apply a low air pressure in the airways. The study includes 3-5 days spent in the Vanderbilt Clinical Research Center (CRC): at least one day of screening tests, followed by up to 3 study days. Subjects may be able to participate in daytime and/or overnight studies. The Daytime study consists of 2 study days: one with active CPAP and one with sham CPAP applied for up to 2 hours. The Overnight study consists of 3 study nights: one with active CPAP, one with sham CPAP, both applied for up to 9 hours and one night sleeping with the bed tilted head-up.

This description comes directly from the study's public registry record.

Talk to the study team

Bonnie K Black, RN, NP  ·  615-343-6862  ·  bonnie.black@vumc.org

Luis E Okamoto, MD  ·  615-936-6119  ·  luis.e.okamoto@vumc.org

Always discuss trial participation with your own doctor first.

Locations (1)

Autonomic Dysfunction Center/ Vanderbilt University Medical CenterNashville, Tennessee, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05489575