# Oxford/AstraZeneca COVID-19 Vaccine Effectiveness in England

> **NCT05047822** · — · COMPLETED · sponsor: **AstraZeneca** · enrollment: 18373714 (actual)

## Conditions studied

- Covid-19 Infection

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT05047822
- **Lead sponsor:** AstraZeneca
- **Sponsor class:** INDUSTRY
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-08-23
- **Primary completion:** 2023-01-27
- **Final completion:** 2023-01-27
- **Target enrollment:** 18373714 (ACTUAL)
- **Last updated:** 2023-11-18

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05047822

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05047822, "Oxford/AstraZeneca COVID-19 Vaccine Effectiveness in England". Retrieved via AI Analytics 2026-05-30 from https://api.ai-analytics.org/clinical/NCT05047822. Licensed CC0.

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