# Active Pharmacovigilance Study of Adsorbed COVID-19 (Inactivated) Vaccine

> **NCT04845048** · — · COMPLETED · sponsor: **Butantan Institute** · enrollment: 2549 (actual)

## Conditions studied

- SARS-CoV-2 Acute Respiratory Disease

## Interventions

- **BIOLOGICAL:** Adsorbed COVID-19 (Inactivated) Vaccine

## Key facts

- **NCT ID:** NCT04845048
- **Lead sponsor:** Butantan Institute
- **Sponsor class:** OTHER_GOV
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2021-05-10
- **Primary completion:** 2023-03-12
- **Final completion:** 2023-03-13
- **Target enrollment:** 2549 (ACTUAL)
- **Last updated:** 2023-05-22


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04845048

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04845048, "Active Pharmacovigilance Study of Adsorbed COVID-19 (Inactivated) Vaccine". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04845048. Licensed CC0.

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