# A Comparison of High-dose Dual Therapy and Half-dose Clarithromycin-containing Bismuth Quadruple Therapy for H.P Eradication in Elderly Patients

> **NCT04101708** · PHASE4 · UNKNOWN · sponsor: **Shandong University** · enrollment: 100 (estimated)

## Conditions studied

- Helicobacter Pylori

## Interventions

- **DRUG:** Lansoprazole, Amoxicillin
- **DRUG:** Lansoprazole, Amoxicillin,Clarithromycin and Bismuth subcitrate

## Key facts

- **NCT ID:** NCT04101708
- **Lead sponsor:** Shandong University
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2019-09-20
- **Primary completion:** 2021-09-20
- **Final completion:** 2022-09-20
- **Target enrollment:** 100 (ESTIMATED)
- **Last updated:** 2019-09-24


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04101708

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04101708, "A Comparison of High-dose Dual Therapy and Half-dose Clarithromycin-containing Bismuth Quadruple Therapy for H.P Eradication in Elderly Patients". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT04101708. Licensed CC0.

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