# Assessment of Midodrine in the Prevention of Vasovagal Syncope: The Prevention of Syncope Trial IV

> **NCT01456481** · PHASE4 · ACTIVE_NOT_RECRUITING · sponsor: **Dr. Bob Sheldon** · enrollment: 134 (actual)

## Conditions studied

- Vasovagal Syncope

## Interventions

- **DRUG:** midodrine hydrochloride
- **DRUG:** matching placebo

## Key facts

- **NCT ID:** NCT01456481
- **Lead sponsor:** Dr. Bob Sheldon
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** ACTIVE_NOT_RECRUITING
- **Start date:** 2011-11
- **Primary completion:** 2018-12-20
- **Final completion:** 2024-12-31
- **Target enrollment:** 134 (ACTUAL)
- **Last updated:** 2024-05-09

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01456481

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01456481, "Assessment of Midodrine in the Prevention of Vasovagal Syncope: The Prevention of Syncope Trial IV". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT01456481. Licensed CC0.

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