# Dual Versus Single Shock for Cardioversion of Atrial Fibrillation

> **NCT03943693** · EARLY_PHASE1 · TERMINATED · sponsor: **University of Oklahoma** · enrollment: 5 (actual)

## Conditions studied

- Atrial Fibrillation

## Interventions

- **DEVICE:** Double shock
- **DEVICE:** Single shock

## Key facts

- **NCT ID:** NCT03943693
- **Lead sponsor:** University of Oklahoma
- **Sponsor class:** OTHER
- **Phase:** EARLY_PHASE1
- **Study type:** INTERVENTIONAL
- **Status:** TERMINATED
- **Start date:** 2019-04-01
- **Primary completion:** 2021-05-31
- **Final completion:** 2021-05-31
- **Target enrollment:** 5 (ACTUAL)
- **Why stopped:** Poor enrollment
- **Last updated:** 2026-04-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03943693

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03943693, "Dual Versus Single Shock for Cardioversion of Atrial Fibrillation". Retrieved via AI Analytics 2026-06-25 from https://api.ai-analytics.org/clinical/NCT03943693. Licensed CC0.

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