H.Pylori InfectionNCT06950489
Tegoprazan and Amoxicillin Dual Therapy
An observational study of H.Pylori Infection, run by Soonchunhyang University Hospital at 1 site in South Korea.
Trial summary
Dual therapy for Helicobacter pylori refers to a treatment regimen that combines two agents: a potent acid suppressor (such as a proton pump inhibitor [PPI] or a potassium-competitive acid blocker [PCAB]) and the antibiotic amoxicillin. Read more about this study
- Who is it for?
- Ages 20 to 80 years
- Conditions the study is for
- H.Pylori Infection
- How many people
- 50 participants
- Where
- 1 siteSouth Korea
- Study dates
- 1 Jan 2025to 31 Dec 2025
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: H. pylori-infected patients
Who may be able to join
- Gastroscopy can be performed
- H. pylori test and pathological analysis can be performed
Who cannot join
- Age < 20 or > 80 years
- Anemia (serum hemoglobin level < 10 g/dL)
- Severe systemic disease
- Advanced chronic liver disease
- Use of certain medications, including proton pump inhibitors, H2- receptor antagonists, or antibiotics
- History of H. pylori eradication
Show all 9Show fewer
- Drug allergy to antibiotics
- History of gastric surgery
- Recent history of upper gastrointestinal bleeding
Trial locations and contacts
1 site in 1 country.
South Korea1 site
Digestive Disease Center, Soonchunhyang University Hospital
Seoul, 04401
About this study
Official title: A Feasibility Study of Tegoprazan and Amoxicillin Dual Therapy for the Treatment of Helicobacter Pylori
Dual therapy for Helicobacter pylori refers to a treatment regimen that combines two agents: a potent acid suppressor (such as a proton pump inhibitor [PPI] or a potassium-competitive acid blocker [PCAB]) and the antibiotic amoxicillin. This approach is increasingly recognized as a viable alternative to traditional triple or quadruple therapies, particularly in the context of rising resistance to other antibiotics such as clarithromycin and metronidazole. Potent acid suppression increases the stability and activity of amoxicillin against H. pylori by maintaining a higher gastric pH, which is essential for optimal amoxicillin effect. High-dose dual therapy (e.g., amoxicillin 1,000 mg three times daily + standard dose of PPI three or four times daily for 14 days) has demonstrated eradication rates of 90%. In 2015, vonoprazan, a novel P-CAB, was launched in Japan and used as an alternative for PPIs for eradicating H. pylori. Dual therapy with vonoprazan and amoxicillin is particularly effective, with cure rates comparable to triple therapy and superior outcomes in clarithromycin-resistant infections. Dual therapy is generally well tolerated, with adverse event rates similar to or lower than those seen with triple or quadruple regimens. In 2018, a new P-CAB, tegoprazan, was developed in Korea and approved for H. pylori eradication. However, there was no study of tegoprazan and amoxicillin dual therapy for the treatment of H. pylori.
Read the detailed description
The investigators aim to evaluate the H. pylori eradication success rate and treatment compliance of tegoprazan and amoxicillin dual therapy.
- Conditions
- H.Pylori Infection
What is being measured
The primary outcome is the main question the study is designed to answer.
H. pylori eradication rates
Urea breath test after completing H. pylori eradication regimen
Measured: 6 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Apr 2025
- Study start1 Jan 2025
- Primary completion31 Dec 2025
- Study completion31 Dec 2025
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for H.Pylori InfectionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- Soonchunhyang University Hospital
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jun-Hyung Cho, Soonchunhyang University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT06950489
- Sponsor's protocol ID
- SCH-HP-2025
- Status last verified
- Apr 2026
- First submitted
- 28 Apr 2025
- Last updated
- 24 Apr 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Feasibility Study of Tegoprazan and Amoxicillin Dual Therapy for the Treatment of Helicobacter Pylori
- ClinicalTrials.gov ID
- NCT06950489
- Acronym / sponsor ID
- SCH-HP-2025
- Conditions
- H.Pylori Infection
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- Soonchunhyang University HospitalUniversity, hospital or other
- Study start
- 1 Jan 2025 (actual)
- Primary completion
- 31 Dec 2025 (actual)
- Study completion
- 31 Dec 2025 (actual)
- First posted
- 30 Apr 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Dual therapy for Helicobacter pylori refers to a treatment regimen that combines two agents: a potent acid suppressor (such as a proton pump inhibitor [PPI] or a potassium-competitive acid blocker [PCAB]) and the antibiotic amoxicillin. This approach is increasingly recognized as a viable alternative to traditional triple or quadruple therapies, particularly in the context of rising resistance to other antibiotics such as clarithromycin and metronidazole. Potent acid suppression increases the stability and activity of amoxicillin against H. pylori by maintaining a higher gastric pH, which is essential for optimal amoxicillin effect. High-dose dual therapy (e.g., amoxicillin 1,000 mg three times daily + standard dose of PPI three or four times daily for 14 days) has demonstrated eradication rates of 90%. In 2015, vonoprazan, a novel P-CAB, was launched in Japan and used as an alternative for PPIs for eradicating H. pylori. Dual therapy with vonoprazan and amoxicillin is particularly effective, with cure rates comparable to triple therapy and superior outcomes in clarithromycin-resistant infections. Dual therapy is generally well tolerated, with adverse event rates similar to or lower than those seen with triple or quadruple regimens. In 2018, a new P-CAB, tegoprazan, was developed in Korea and approved for H. pylori eradication. However, there was no study of tegoprazan and amoxicillin dual therapy for the treatment of H. pylori.
Detailed description
The investigators aim to evaluate the H. pylori eradication success rate and treatment compliance of tegoprazan and amoxicillin dual therapy.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 20 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- H. pylori-infected patients
Key inclusion criteria (2 listed)
- Gastroscopy can be performed
- H. pylori test and pathological analysis can be performed
Key exclusion criteria (9 listed)
- Age < 20 or > 80 years
- Anemia (serum hemoglobin level < 10 g/dL)
- Severe systemic disease
- Advanced chronic liver disease
- Use of certain medications, including proton pump inhibitors, H2- receptor antagonists, or antibiotics
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
H. pylori eradication rates
Time frame: 6 weeks
Urea breath test after completing H. pylori eradication regimen
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Apr 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of H.Pylori Infection, run by Soonchunhyang University Hospital at 1 site in South Korea.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
H. pylori eradication rates (time frame: 6 weeks). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Apr 2026.