# An Immunity Persistence Study of Enterovirus 71 Inactivated Vaccine (Vero Cell)

> **NCT05397587** · PHASE4 · UNKNOWN · sponsor: **Sinovac Biotech Co., Ltd** · enrollment: 474 (estimated)

## Conditions studied

- Hand, Foot and Mouth Disease

## Interventions

- **BIOLOGICAL:** Experimental Vaccine
- **BIOLOGICAL:** Control Vaccine

## Key facts

- **NCT ID:** NCT05397587
- **Lead sponsor:** Sinovac Biotech Co., Ltd
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2022-07-30
- **Primary completion:** 2025-07-30
- **Final completion:** 2025-10-30
- **Target enrollment:** 474 (ESTIMATED)
- **Last updated:** 2022-06-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05397587

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05397587, "An Immunity Persistence Study of Enterovirus 71 Inactivated Vaccine (Vero Cell)". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT05397587. Licensed CC0.

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