This trial is active, not recruiting.

Conditions postural tachycardia syndrome, chronic orthostatic intolerance
Treatment polysomnography
Sponsor Satish R. Raj
Collaborator National Institutes of Health (NIH)
Start date November 2006
End date December 2014
Trial size 100 participants
Trial identifier NCT00581022, 051131, NIH 1 UL1 RR024975


We wish to study sleep architecture in patients with chronic orthostatic intolerance. We will test the null hypothesis that there is no difference in time during the various phases of sleep between patients and healthy control subjects.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Observational model cohort
Time perspective prospective
Patients with Chronic Orthostatic Intolerance
polysomnography Sleep Study
Overnight Sleep Study

Primary Outcomes

Duration of sleep
time frame: 1 night

Secondary Outcomes

Time in individual phases of sleep
time frame: 1 night
sleep latency
time frame: 1 might

Eligibility Criteria

Male or female participants from 18 years up to 65 years old.

Inclusion Criteria: - diagnosed with chronic orthostatic intolerance (or healthy subject) Exclusion Criteria: - overt cause or acute orthostatic intolerance - pregnancy or lactation

Additional Information

Official title Assessment of Objective Sleep Disturbances in Orthostatic Intolerance
Principal investigator Satish R Raj, MD MSCI
Trial information was received from ClinicalTrials.gov and was last updated in January 2013.
Information provided to ClinicalTrials.gov by Vanderbilt University.