# HepB-CpG Series for Healthcare Workers Who Are Hepatitis B Vaccine Nonresponders

> **NCT04456504** · PHASE4 · COMPLETED · sponsor: **University of Wisconsin, Madison** · enrollment: 49 (actual)

## Conditions studied

- Healthcare Worker, Hepatitis B Vaccine, Nonresponder

## Interventions

- **BIOLOGICAL:** Recombinant hepatitis B vaccine with CpG adjuvant

## Key facts

- **NCT ID:** NCT04456504
- **Lead sponsor:** University of Wisconsin, Madison
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-09-15
- **Primary completion:** 2023-12-06
- **Final completion:** 2023-12-06
- **Target enrollment:** 49 (ACTUAL)
- **Last updated:** 2024-07-16


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04456504

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04456504, "HepB-CpG Series for Healthcare Workers Who Are Hepatitis B Vaccine Nonresponders". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT04456504. Licensed CC0.

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