# PROphylaxis for paTiEnts at Risk of COVID-19 infecTion

> **NCT04389359** · PHASE2,PHASE3 · WITHDRAWN · sponsor: **Cambridge University Hospitals NHS Foundation Trust**

## Conditions studied

- COVID-19

## Interventions

- **DRUG:** Hydroxychloroquine Sulfate 200 MG

## Key facts

- **NCT ID:** NCT04389359
- **Lead sponsor:** Cambridge University Hospitals NHS Foundation Trust
- **Sponsor class:** OTHER
- **Phase:** PHASE2,PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** WITHDRAWN
- **Start date:** 2020-09
- **Primary completion:** 2021-08
- **Final completion:** 2025-08
- **Target enrollment:** 0 (ACTUAL)
- **Why stopped:** Regulatory approvals not received
- **Last updated:** 2021-03-08

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04389359

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04389359, "PROphylaxis for paTiEnts at Risk of COVID-19 infecTion". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT04389359. Licensed CC0.

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