# OPV as Potential Protection Against COVID-19

> **NCT04445428** · PHASE4 · COMPLETED · sponsor: **Bandim Health Project** · enrollment: 3729 (actual)

## Conditions studied

- Poliovirus Vaccine, Oral
- COVID
- Mortality
- Morbidity
- Non-Specific Effects of Vaccines

## Interventions

- **BIOLOGICAL:** oral polio vaccine + information
- **BEHAVIORAL:** Information

## Key facts

- **NCT ID:** NCT04445428
- **Lead sponsor:** Bandim Health Project
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-07-15
- **Primary completion:** 2022-01-31
- **Final completion:** 2022-06-15
- **Target enrollment:** 3729 (ACTUAL)
- **Last updated:** 2026-04-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04445428

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04445428, "OPV as Potential Protection Against COVID-19". Retrieved via AI Analytics 2026-05-25 from https://api.ai-analytics.org/clinical/NCT04445428. Licensed CC0.

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