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POTS Adrenergic Ab (CIHR Aims #1&2)

This trial has no sites in United States.

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Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 60 years old?

Source: NCT02673996, who can take part

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

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Trial details

Who runs it
University of Calgary
Trial code
NCT02673996
Record updated
5 May 2026
Original description
Objective: In this pilot study, we will test the hypothesis that patients with POTS (age 18-60 years) will have a higher percentage of functional antibodies to adrenergic receptors compared with control subjects without POTS.Read full original descriptionShow less

The Pathophysiological Role of Adrenergic Antibodies in Postural Tachycardia Syndrome (Aims #1&2)

Objective: In this pilot study, we will test the hypothesis that patients with POTS (age 18-60 years) will have a higher percentage of functional antibodies to adrenergic receptors compared with control subjects without POTS.

Inclusion: Patients who have been previously diagnosed with POTS; Control subjects (patients not diagnosed with POTS); Age between 18 - 60 years; Males and Females (Give that >80% of POTS patients are female, we will attempt to enroll a similar percentage of female control subjects); Able and willing to provide consent.

Exclusion: Significant cardiovascular, pulmonary, hepatic, or hematological disease by history or prior testing; Other factors which in the investigator's opinion would prevent the participant from completing the protocol, including poor compliance during previous studies or an unpredictable schedule; Hypertension defined as supine resting BP>145/95 mmHg off medications or needing antihypertensive medication; Smokers; Overt cause for postural tachycardia, i.e., acute dehydration; Highly trained athletes; Subjects with somatization or severe anxiety symptoms will be excluded; Use of drospirenone (a spironolactone analogue) containing oral contraceptive agent; Unable to give informed consent.

ClinicalTrials.gov NCT02673996