# COVID-19 PEP- High-risk Individuals in Long-term and Specialized Care - Canada

> **NCT04397328** · PHASE3 · WITHDRAWN · sponsor: **London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's**

## Conditions studied

- COVID-19

## Interventions

- **DRUG:** Hydroxychloroquine
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04397328
- **Lead sponsor:** London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2020-05-30
- **Primary completion:** 2021-04-30
- **Final completion:** 2021-04-30
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Study Withdrawn
- **Last updated:** 2025-09-15


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04397328

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04397328, "COVID-19 PEP- High-risk Individuals in Long-term and Specialized Care - Canada". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04397328. Licensed CC0.

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