# Sequential Versus Quadruple Therapy in the Second-line Treatment

> **NCT03208426** · PHASE4 · UNKNOWN · sponsor: **National Taiwan University Hospital** · enrollment: 240 (estimated)

## Conditions studied

- Helicobacter Pylori Infection

## Interventions

- **DRUG:** Esomeprazole (S14)
- **DRUG:** Esomeprazole (BQ10)
- **DRUG:** Amoxicillin (ST14)
- **DRUG:** Clarithromycin (ST14)
- **DRUG:** Metronidazole (ST14)
- **DRUG:** dibismuth trioxide 120mg (BQ10)
- **DRUG:** Metronidazole (BQ10)
- **DRUG:** tetracycline (BQ10)

## Key facts

- **NCT ID:** NCT03208426
- **Lead sponsor:** National Taiwan University Hospital
- **Sponsor class:** OTHER
- **Phase:** PHASE4
- **Study type:** INTERVENTIONAL
- **Status:** UNKNOWN
- **Start date:** 2017-10-01
- **Primary completion:** 2019-12-31
- **Final completion:** 2020-12-31
- **Target enrollment:** 240 (ESTIMATED)
- **Last updated:** 2018-06-04


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT03208426

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT03208426, "Sequential Versus Quadruple Therapy in the Second-line Treatment". Retrieved via AI Analytics 2026-05-29 from https://api.ai-analytics.org/clinical/NCT03208426. Licensed CC0.

---

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