# Prophylactic Benefit of Hydroxychloroquine in COVID-19 Cases With Mild to Moderate Symptoms and in Healthcare Workers With High Exposure Risk

> **NCT04371926** · NA · WITHDRAWN · sponsor: **Texas Cardiac Arrhythmia Research Foundation**

## Conditions studied

- COVID-19

## Interventions

- **DRUG:** Hydroxychloroquine Sulfate

## Key facts

- **NCT ID:** NCT04371926
- **Lead sponsor:** Texas Cardiac Arrhythmia Research Foundation
- **Sponsor class:** OTHER
- **Phase:** NA
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2020-06
- **Primary completion:** 2021-06
- **Final completion:** 2021-07
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Concerned about the adverse effects of HCQ
- **Last updated:** 2020-06-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04371926

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04371926, "Prophylactic Benefit of Hydroxychloroquine in COVID-19 Cases With Mild to Moderate Symptoms and in Healthcare Workers With High Exposure Risk". Retrieved via AI Analytics 2026-07-04 from https://api.ai-analytics.org/clinical/NCT04371926. Licensed CC0.

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