# Tetracycline Versus Doxycycline for HP Rescue Therapy

> **NCT05018923** · PHASE4 · UNKNOWN · sponsor: **Shanghai Zhongshan Hospital** · enrollment: 242 (estimated)

## Conditions studied

- Helicobacter Pylori Infection

## Interventions

- **DRUG:** Rabeprazole
- **DRUG:** Bismuth potassium citrate
- **DRUG:** Metronidazole
- **DRUG:** Doxycycline
- **DRUG:** Tetracycline

## Key facts

- **NCT ID:** NCT05018923
- **Lead sponsor:** Shanghai Zhongshan Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2021-08-24
- **Primary completion:** 2022-12-30
- **Final completion:** 2022-12-30
- **Target enrollment:** 242 (ESTIMATED)
- **Last updated:** 2021-08-26


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT05018923

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT05018923, "Tetracycline Versus Doxycycline for HP Rescue Therapy". Retrieved via AI Analytics 2026-05-27 from https://api.ai-analytics.org/clinical/NCT05018923. Licensed CC0.

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