NCT04147065

Brief Summary

Clarithromycin-containing triple therapy is still the primary therapy approved by the Korean government. However, studies of antibiotic resistance have shown that regional resistance patterns to antibiotics such as clarithromycin are increasing. Recent studies show that examining genotype resistance is effective in eradication. Currently, dual priming oligonucleotide-polymerase chain reaction (DPO-PCR) is used to measure clarithromycin resistance. No study has compared the duration of eradication regimens according to DPO-PCR results. This study compares the eradication rate of 7-day triple therapy with 14-day triple therapy in clarithromycin susceptible strains from DPO-PCR. The investigators also aimed to compare the eradication rates of 7-day bismuth quadruple therapy with 14-day bismuth quadruple therapy from clarithromycin-resistant strains from DPO-PCR.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
1,230

participants targeted

Target at P75+ for phase_4

Timeline
Completed

Started Jul 2021

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 20, 2019

Completed
11 days until next milestone

First Posted

Study publicly available on registry

October 31, 2019

Completed
1.7 years until next milestone

Study Start

First participant enrolled

July 14, 2021

Completed
3.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

March 30, 2025

Completed
Last Updated

May 16, 2024

Status Verified

May 1, 2024

Enrollment Period

3.5 years

First QC Date

October 20, 2019

Last Update Submit

May 14, 2024

Conditions

Keywords

HelicobacterEmpiricalTailored

Outcome Measures

Primary Outcomes (1)

  • Eradication rate

    Negative urea breath test done

    At least 4 weeks from eradication regimen

Secondary Outcomes (1)

  • Adverse events

    Within one week from eradication administration

Study Arms (2)

7-day triple therapy and 7-day bismuth quadruple therapy

EXPERIMENTAL

7-day triple therapy is consisted of proton pump inhibitor (PPI), amoxicillin and clarithromycin for seven days 7-day bismuth quadruple therapy is consisted of PPI, bismuth, tetracycline, metronidazole for seven days

Drug: Duration of eradication regimen

14-day triple therapy and 14-day bismuth quadruple therapy

ACTIVE COMPARATOR

14-day triple therapy is consisted of PPI, amoxicillin and clarithromycin for fourteen days 14-day bismuth quadruple therapy is consisted of PPI, bismuth, tetracycline, metronidazole for fourteen days

Drug: Duration of eradication regimen

Interventions

14 day eradication regimen

Also known as: 14 day treatment
14-day triple therapy and 14-day bismuth quadruple therapy7-day triple therapy and 7-day bismuth quadruple therapy

Eligibility Criteria

Age20 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participants who had upper endoscopic examination within 3 months and diagnosed by Helicobacter pylori infection either by rapid urease test, urea breath test, or histopathologic examination.
  • Participants who voluntarily want to participate in this study.

You may not qualify if:

  • History of H. pylori eradication History of stomach resection. Allergy or adverse events related to eradication medication. Administration of proton-pump inhibitor within 2 weeks or Histamine 2 receptor blocker within 1 week.
  • Administration of these drugs within a week or who need continuous administration of these drugs; aspirin (except low-dose aspirin for primary prophylaxis of cardiovascular disease), intravenous or oral NSAID, anticholinergics, prostaglandin analogs, pro-motility drugs, sucralfate Administration of antibiotics within 4 weeks. Pregnant, breast feeding participant or who do not have a will to avoid pregnancy during clinical trial Administrating one of these drugs (Lovastatin, Simvastatin, Atorvastatin, Indinavir, Ritonavir, Cyclosporin, Terfenadine, Cisapride, Pimozide, Astemizole, HIV protease inhibitors (Atazanavir, Nelfinavir), Ergotamine, Dihydroergotamine, Mizolastine, Bepridil, Ticagrelor) Infectious mononucleosis Central nervous system infection Hematologic disease Galactose intolerance Lactase deficiency Glucose-galactose malabsorption Torsades de pointes.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Incheon St. Mary's Hospital

Incheon, South Korea

RECRUITING

MeSH Terms

Interventions

Therapeutics

Study Officials

  • Byung-Wook Kim, MD, PhD

    Incheon St.Mary's Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Joon S Kim, MD, PhD

CONTACT

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Phase I study Tailored therapy (Clar S: 7 vs. 14 d triple therapy, Clar R: 7 vs. 14d BQT) vs. empirical therapy (7 or 14 d triple therapy) for H. pylori eradication Phase 2 study Tailored therapy (Clar S: 7d triple therapy, Clar R: 7d BQT vs. empirical therapy (14d triple therapy)
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant professor

Study Record Dates

First Submitted

October 20, 2019

First Posted

October 31, 2019

Study Start

July 14, 2021

Primary Completion

December 31, 2024

Study Completion

March 30, 2025

Last Updated

May 16, 2024

Record last verified: 2024-05

Data Sharing

IPD Sharing
Will not share

Locations