# Prevalence of Occult Hepatitis B Virus Infection（OBI） in Subjects With Chronic Hepatitis B（CHB） Family History

> **NCT04672915** · — · UNKNOWN · sponsor: **First Affiliated Hospital Xi'an Jiaotong University** · enrollment: 2000 (estimated)

## Conditions studied

- Chronic Hepatitis b

## Interventions

- **DIAGNOSTIC_TEST:** test of HBV DNA

## Key facts

- **NCT ID:** NCT04672915
- **Lead sponsor:** First Affiliated Hospital Xi'an Jiaotong University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** UNKNOWN
- **Start date:** 2020-12-21
- **Primary completion:** 2022-11-15
- **Final completion:** 2022-12-30
- **Target enrollment:** 2000 (ESTIMATED)
- **Last updated:** 2022-03-31


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04672915

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04672915, "Prevalence of Occult Hepatitis B Virus Infection（OBI） in Subjects With Chronic Hepatitis B（CHB） Family History". Retrieved via AI Analytics 2026-06-08 from https://api.ai-analytics.org/clinical/NCT04672915. Licensed CC0.

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