# Efficacy of Chloroquine or Hydroxychloroquine in Treating Pneumonia Caused by SARS-Cov-2 - COVID-19

> **NCT04420247** · PHASE3 · COMPLETED · sponsor: **Centro de Estudos e Pesquisa em Emergencias Medicas e Terapia Intensiva** · enrollment: 142 (actual)

## Conditions studied

- COVID
- COVID-19
- SARS-CoV 2
- Coronavirus
- Corona Virus Infection

## Interventions

- **DRUG:** Chloroquine
- **DRUG:** Hydroxychloroquine
- **OTHER:** standard care

## Key facts

- **NCT ID:** NCT04420247
- **Lead sponsor:** Centro de Estudos e Pesquisa em Emergencias Medicas e Terapia Intensiva
- **Sponsor class:** OTHER
- **Phase:** PHASE3
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-04-16
- **Primary completion:** 2020-08-20
- **Final completion:** 2020-09-03
- **Target enrollment:** 142 (ACTUAL)
- **Last updated:** 2021-05-12


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04420247

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04420247, "Efficacy of Chloroquine or Hydroxychloroquine in Treating Pneumonia Caused by SARS-Cov-2 - COVID-19". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04420247. Licensed CC0.

---

*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*