About Pricing FAQs Providers Trials Blog

Login Get started

Finding studies

Your health journey, clearly organized.

Questions? feedback@clareohealth.com

Product

How it works
Pricing
For Providers
Trials

Company

About
Blog
FAQ

Legal

Privacy Policy
Terms of Service

© 2026 Clareo Health. All rights reserved.

The Renin-Aldosterone Axis in Postural Tachycardia Syndrome

NCT00962949·1 site·ClinicalTrials.gov

What this study is about

Take this into the appointment.

Saves the questions and what to expect into your notes, next to the visit they belong to.

Keep this study

Lead

Vanderbilt University Medical Center

Age

18–64

Sex

ALL

Healthy volunteers

Accepted

You may be eligible if

Diagnosis of postural tachycardia syndrome by the Vanderbilt Autonomic Dysfunction Center criteria
Age between 18-64 years
Male or females are eligible
Able and willing to provide informed consent
Healthy control subjects with no major medical problem (including postural tachycardia syndrome), free of medications during the study

You may not be if

Overt cause of postural tachycardia e.g., dehydration
Inability to give or withdraw informed consent
Pregnancy
Hypertension (BP \> 140/90)
Significant co-morbid condition
Other factors which in the investigator's opinion would prevent the subject from completing the protocol

The record

StatusCompleted

PhasePhase 1

Taking part28

StartedApr 2009

UpdatedSep 16, 2025

Conditions

Postural Orthostatic Tachycardia Syndrome (POTS)

Where1

Vanderbilt University
Nashville, Tennessee, United States

Clareo Health | The Renin-Aldosterone Axis in Postural Tachycardia Syndrome