Skip to content

Fourteen-day amoxicillin- or tetracycline-containing bismuth quadruple therapy versus 14-day metronidazole based triple therapy as a first-line treatment for clarithromycin resistant Helicobacter pylori infection : A multicenter randomized controlled trial

Fourteen-day amoxicillin- or tetracycline-containing bismuth quadruple therapy versus 14-day metronidazole based triple therapy as a first-line treatment for clarithromycin resistant Helicobacter pylori infection : A multicenter randomized controlled trial

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
CRIS
Registry ID
KCT0012265
Enrollment
198
Registered
2026-07-13
Start date
2022-12-23
Completion date
Unknown
Last updated
2026-07-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Interventions

Drug : This study was a prospective, randomized controlled trial comparing three oral eradication regimens in patients with clarithromycin-resistant Helicobacter pylori (H. pylori) infection. All medi
however, they differ in the choice of the second antibiotic. The PAM-B arm uses amoxicillin (1,000 mg

Sponsors

Dong-A University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: ? Adults aged 18 to 80 years of both sexes. ? Patients diagnosed with Helicobacter pylori infection via endoscopy, confirmed by at least one of the following methods: histology, rapid urease test, serology, or urea breath test. ? Patients with clarithromycin resistance confirmed by dual-priming oligonucleotide polymerase chain reaction (DPO-PCR). ? Patients who provided written informed consent after receiving a full explanation of the study objectives and procedures.

Exclusion criteria

Exclusion criteria: ? Patients with a history of prior Helicobacter pylori eradication therapy. ? Patients with a history of gastric surgery (e.g., gastrectomy). ? Patients with severe hepatic or renal impairment. ? Patients with a history of antibiotic allergy. ? Patients who had taken antibiotics within 4 weeks prior to study enrollment. ? Pregnant or lactating women.

Design outcomes

Primary

MeasureTime frame
Helicobacter pylori eradication success rate assessed by intention-to-treat (ITT) and per-protocol (PP) analyses

Secondary

MeasureTime frame
Incidence of treatment-related adverse events during the eradication therapy period;Medication compliance during the eradication therapy period

Countries

Korea, Republic of

Contacts

Public ContactMyeongseok Koh

Dong-A University Hospital

kohdolchu@dau.ac.kr+82-51-240-5677

Outcome results

None listed

Source: CRIS (via WHO ICTRP) · Data processed: Sep 17, 2026