Tegoprazan-Amoxicillin Dual Therapy vs. Bismuth Quadruple Therapy for H. Pylori Infection (TATH-1)
TATH-1
TATH-1
Sponsor study identifier
interventional
370
1 country
1
Study Start
November 1, 2023
Actual (reported)Primary Completion
September 30, 2025
Actual (reported)Study Completion
October 31, 2025
Actual (reported)Standard eradication therapies using proton pump inhibitors (PPIs) require double doses to achieve sufficient acid suppression, yet failure rates remain high due to antibiotic resistance. Tegoprazan, a P-CAB agent, inhibits gastric acid more effectively than PPIs. This study hypothesizes that Tegoprazan-based dual therapy can achieve superior or non-inferior eradication rates compared to standard quadruple therapy. The study evaluates the antibacterial effect of Tegoprazan combined with high-dose Amoxicillin in H. pylori-infected patients.
Registry-reported information. Elapsed time and enrollment totals alone do not measure study progress or recruitment pace.
October 31, 2025
Actual (reported)Click on a node to explore related trials.
Dates and qualifiers reported by the registry. Estimated dates do not confirm that a milestone has occurred.
November 23, 2022
Actual (reported)December 12, 2022
Actual (reported)November 1, 2023
Actual (reported)September 30, 2025
Actual (reported)October 31, 2025
Actual (reported)Percentage of Helicobacter Pylori Positive (HP+) Participants With Successful HP Eradication at Week 4 Post- Treatment
HP infection status will be determined by \^13C Urea Breath Test (\^13C-UBT). The urea breath test is used to detect infection with HP, a bacteria associated with stomach ulcers, by testing individual breath samples in a central laboratory.
Week 4-8 post-treatment
Tegoprazan 50 mg once daily plus Amoxicillin 1000mg TID for up to 2 weeks
esomeprazole 20 mg, tablets, orally, bid given in combination with amoxicillin 1000mg,clarithromycin 500mg bid,colloidal bismuth pectin 200mg bid for up to 2 weeks. OR esomeprazole 20 mg, tablets, orally, bis in die given in combination with amoxicillin 750mg capsules, orally, quarter die for up to 2 weeks.
Tegoprazan 50 mg, tablets, orally, qd given in combination with amoxicillin 1000mg capsules, orally, tid for up to 2 weeks.
esomeprazole 20 mg, tablets, orally, bid given in combination with amoxicillin 1000mg,clarithromycin 500mg bid,colloidal bismuth pectin 200mg bid for up to 2 weeks. OR esomeprazole 20 mg, tablets, orally, bis in die given in combination with amoxicillin 750mg capsules, orally, quarter die for up to 2 weeks.
These entries preserve how the registry describes the intervention. Their treatment roles are shown separately from molecular identities.
Grouped treatment entry
amoxicillin +clarithromycin+colloidal bismuth pectin BID
The registry names several treatments. This does not confirm that participants received them together or that they form a single product.
View registry recordHangzhou first people's Hospital
Hangzhou, Zhejiang, 310000, China
370 participants (actual enrollment reported by the registry).
First Submitted
November 23, 2022
First Posted
December 12, 2022
Study Start
November 1, 2023
Actual (reported)Tegoprazan 50 mg twice daily plus Amoxicillin plus Amoxicillin 1000mg TID for up to 2 weeks
Tegoprazan 50 mg, tablets, orally, bid given in combination with amoxicillin 1000mg capsules, orally, tid for up to 2 weeks.
amoxicillin 1000mg,clarithromycin 500mg bid,colloidal bismuth pectin 200mg bid for up to 2 weeks
Contact the study team to confirm eligibility.
Primary Completion
September 30, 2025
Actual (reported)Study Completion
October 31, 2025
Actual (reported)Last Updated
January 16, 2026
Record last verified: 2026-01
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Source: ClinicalTrials.gov.
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