Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT00581633 · ClinicalTrials.gov registry record · NA

Acute Salt Handling in Orthostatic Intolerance

A NA study of Postural Tachycardia Syndrome and Orthostatic Intolerance, sponsored by Vanderbilt University.

Active
Registry status
NA
Development phase
30
Enrollment target
1
Study location

NCT00581633: Active NA study of Postural Tachycardia Syndrome and Orthostatic Intolerance, sponsored by Vanderbilt University.

NCT00581633 is a NA study of Postural Tachycardia Syndrome and Orthostatic Intolerance that is active but no longer recruiting, run by Vanderbilt University. The registered enrollment target is 30 participants, below the 81-participant average among 19 other Postural Tachycardia Syndrome trials with a reported enrollment target (63% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT00581633, a NA study of Postural Tachycardia Syndrome and Orthostatic Intolerance, is active but no longer recruiting, sponsored by Vanderbilt University.

ACTIVE NOT RECRUITING
Registry status
NA
Development phase
30 participants
Enrollment target
1
Study location

Study Summary

The investigators will test the hypothesis that patients with chronic orthostatic intolerance or postural orthostatic tachycardia syndrome (OI or POTS) will be unable to conserve urinary sodium as compared to healthy control subjects.

Interventions

  • OTHER normal saline (0.9%)

Study Locations (1)

Tennessee

  • Vanderbilt University - Nashville

Trial Details

FieldValue
Enrollment Target 30 participants
Start Date 2007-02
Est. Completion 2029-12
Phase NA
Vanderbilt University

430 total trials

What the registry record for NCT00581633 still lists

NCT00581633 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 30 participants, a relatively small participant target, below the 81-participant average among 19 other Postural Tachycardia Syndrome trials with a reported enrollment target (63% lower).

The record links to 3 conditions, with Postural Tachycardia Syndrome appearing as the primary indexed condition, and to 1 intervention - of which normal saline (0.9%) is the first listed.

NCT00581633 reports a single indexed study location in Tennessee.

Frequently Asked Questions

What is clinical trial NCT00581633 about?

NCT00581633 is a clinical study titled "Acute Salt Handling in Orthostatic Intolerance". The investigators will test the hypothesis that patients with chronic orthostatic intolerance or postural orthostatic tachycardia syndrome (OI or POTS) will be unable to conserve urinary sodium as compared to healthy control subjects.

What is the current status of trial NCT00581633?

This trial is currently active not recruiting. It is a NA study. The enrollment target is 30 participants. The study started on 2007-02. Estimated completion is 2029-12.

What conditions does trial NCT00581633 study?

This clinical trial studies the following conditions: Postural Tachycardia Syndrome, Orthostatic Intolerance, Orthostatic Tachycardia.

What interventions are being tested in trial NCT00581633?

The interventions under investigation include: normal saline (0.9%) (OTHER).

Who is sponsoring clinical trial NCT00581633?

This trial is sponsored by Vanderbilt University, which has 430 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00581633 being conducted?

This trial has 1 study location across Tennessee. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Postural Tachycardia Syndrome

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00581633's enrollment target sits among peer trials

30 14th of 19 higher than 5 of 19 other Postural Tachycardia Syndrome trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Postural Tachycardia Syndrome trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT00977977 · 30 participants · Phase 2

    Rituximab Plus Cyclosporine in Idiopathic Membranous Nephropathy

  • NCT01459107 · 30 participants · Phase 2

    Human Upper Extremity Allotransplantation

  • NCT01666080 · 30 participants · NA

    Second or Greater Allogeneic Hematopoietic Stem Cell Transplant Using Reduced Intensity Conditioning (RIC)

  • NCT01720836 · 30 participants · Phase 1

    Study of the Immune Response of MUC1 (Mucin1) Peptide Vaccine for Non-small Cell Lung Cancer

Similar registry start date

  • NCT05988463 · started 2027-01-01 · Phase 1

    Dose-Escalation Study of Artesunate Patients With IPF

  • NCT07219706 · started 2026-12-10 · NA

    Dietary Fiber and Time Restricted Eating

  • NCT02831335 · started 2026-12-01

    Technical Development of Multi-Parametric Renocerebral MRI

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

Source: ClinicalTrials.gov NCT00581633, the US trial registry maintained by the National Library of Medicine. NCT00581633 (small enrollment · single site footprint · active not recruiting) retrieved and formatted by PlainTrial, see methodology.