# Prevention Of Respiratory Tract Infection And Covid-19 Through BCG Vaccination In Vulnerable Older Adults

> **NCT04537663** · PHASE4 · COMPLETED · sponsor: **UMC Utrecht** · enrollment: 6112 (actual)

## Conditions studied

- Respiratory Tract Infections
- Covid19

## Interventions

- **DRUG:** Bacille Calmette-Guérin (BCG)
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04537663
- **Lead sponsor:** UMC Utrecht
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-09-07
- **Primary completion:** 2021-07-08
- **Final completion:** 2021-07-08
- **Target enrollment:** 6112 (ACTUAL)
- **Last updated:** 2022-09-23


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04537663

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04537663, "Prevention Of Respiratory Tract Infection And Covid-19 Through BCG Vaccination In Vulnerable Older Adults". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT04537663. Licensed CC0.

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