Actively Recruiting

Phase 2
Age: 15Years - 55Years
All Genders
NCT00409435

A Study of Pyridostigmine in Postural Tachycardia Syndrome

Led by Mayo Clinic · Updated on 2026-03-05

50

Participants Needed

1

Research Sites

1061 weeks

Total Duration

On this page

Sponsors

M

Mayo Clinic

Lead Sponsor

N

National Institute of Neurological Disorders and Stroke (NINDS)

Collaborating Sponsor

AI-Summary

What this Trial Is About

This is a 3-day study comparing pyridostigmine versus placebo in the treatment of postural tachycardia syndrome (POTS). The researchers expect pyridostigmine to improve tachycardia and stabilize blood pressure.

CONDITIONS

Official Title

A Study of Pyridostigmine in Postural Tachycardia Syndrome

Who Can Participate

Age: 15Years - 55Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosis of postural tachycardia syndrome (POTS) with heart rate increase of 30 beats per minute or more within 5 minutes of head-up tilt
  • Symptoms of orthostatic intolerance including weakness, lightheadedness, blurred vision, nausea, palpitations, or difficulty concentrating
  • Age between 15 and 55 years
Not Eligible

You will not qualify if you...

  • Pregnant or breastfeeding women
  • Other organ system failure or systemic illness affecting autonomic function or study cooperation
  • Hypothyroidism or hyperthyroidism
  • Clinically significant coronary artery disease
  • Medications that interfere with autonomic testing
  • Previous treatment with pyridostigmine for POTS within the past month

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

Mayo Clinic

Rochester, Minnesota, United States, 55905

Actively Recruiting

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How is the study designed?

Study Type

INTERVENTIONAL

Masking

QUADRUPLE

Allocation

RANDOMIZED

Model

PARALLEL

Primary Purpose

TREATMENT

Number of Arms

2

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