# Impact of COVID-19 Vaccines on Cerebrovascular Health

> **NCT04992195** · — · RECRUITING · sponsor: **Chinese University of Hong Kong** · enrollment: 500 (estimated)

## Conditions studied

- Stroke
- Stroke, Acute
- Stroke, Ischemic
- Dementia
- Brain Ischemia
- Alzheimer Disease
- Brain Diseases
- Major Adverse Cardiovascular Event
- Arterial Thromboembolism
- Venous Thromboembolism

## Interventions

- **DIAGNOSTIC_TEST:** Laboratory tests and Montreal Cognitive Assessment
- **DIAGNOSTIC_TEST:** Laboratory tests and Montreal Cognitive Assessment

## Key facts

- **NCT ID:** NCT04992195
- **Lead sponsor:** Chinese University of Hong Kong
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2021-07-05
- **Primary completion:** 2026-06-30
- **Final completion:** 2026-12-31
- **Target enrollment:** 500 (ESTIMATED)
- **Last updated:** 2026-02-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04992195

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04992195, "Impact of COVID-19 Vaccines on Cerebrovascular Health". Retrieved via AI Analytics 2026-05-26 from https://api.ai-analytics.org/clinical/NCT04992195. Licensed CC0.

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