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RecruitingNCT07897994Updated Oct 27, 2026

Efficacy and Safety of Linarazen Gluconate Capsules Combined With Amoxicillin (Dual-Drug Therapy) Versus Bismuth-Containing Quadruple Therapy for First-Line Eradication of Helicobacter Pylori Infection

A Phase 4 interventional study of Linalarose Glutarate and Bismuth Quadruple Test in HELICOBACTER PYLORI INFECTIONS, sponsored by Yongquan Shi. Recruiting at 24 sites in China. Open to participants aged 18 Years to 70 Years. Per ClinicalTrials.gov, last updated 2026-10-27.

Sponsored by Yongquan Shi · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Started Oct 2026; still recruiting 1 month later.
Updated Oct 27, 2026Newly registeredGo to Updates ↓
Phase
Phase 4
Study type
Interventional
Enrollment
448
Allocation
Randomized
Ages
18 Years to 70 Years
Sex
All
01

Study summary

This clinical trial aims to compare the efficacy of the dual therapy regimen of linralase glutarate capsules and amoxicillin versus the quadruple therapy regimen containing bismuth for the first-line eradication of Helicobacter pylori infection. The primary questions this trial aims to address include: 1. Whether the linalarenate glutarate capsule-amoxicillin dual-drug regimen is non-inferior to the bismuth-containing quadruple therapy, while simultaneously evaluating patient adherence and the incidence of adverse events in both treatment groups. Participants will: 1. Treatment group: Linaralate Glutarate Capsules (50 mg bid) + Amoxicillin (1 g tid), for a 14-day treatment course. 2. Control group: Esomeprazole 20 mg, twice daily (bid) + clarithromycin 0.5 g, twice daily (bid) + amoxicillin 1 g, twice daily (bid) + colloidal bismuth subcitrate 200 mg, twice daily (bid), for a 14-day treatment course. The primary endpoint is the Helicobacter pylori eradication rate 4 weeks after discontinuation of treatment.

02

Conditions studied

  • HELICOBACTER PYLORI INFECTIONS

Keywords

  • HELICOBACTER PYLORI INFECTIONS
  • Linalarose Glutarate
03

In context

Lead sponsor

Yongquan Shi is the lead sponsor of 9 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • (1) Adult patients aged 18-70 years, regardless of gender;
  • (2) Patients diagnosed with Helicobacter pylori infection via 13C/14C-UBT;
  • (3) Patients who have not previously undergone Helicobacter pylori eradication therapy;
  • (4) Patients who have provided and voluntarily agreed to participate in this study.

Exclusion criteria

Exclusion Criteria:

  • (1) Individuals allergic to the study drug;
  • (2) Individuals who have taken antibiotics, bismuth-containing agents, probiotics, or traditional Chinese medicines with antibacterial activity within the past 4 weeks;
  • (3) Individuals who have taken P-CAB, PPI, or H2 receptor antagonists within the past 2 weeks;
  • (4) Individuals with a history of failed Helicobacter pylori eradication therapy;
  • (5) Women who are pregnant, breastfeeding, or planning to become pregnant;
  • (6) Patients with concomitant peptic ulcers, reflux esophagitis, MALT lymphoma, gastrointestinal , or those who have undergone esophageal or gastric surgery;
  • (7) Patients with severe cardiac, hepatic, pulmonary, or renal diseases, or those with impaired immunity;
  • (8) Patients unable to comply with treatment due to alcohol abuse, substance abuse, or severe mental illness;
  • (9) Patients requiring treatment with atazanavir, nelfinavir, or rilpivirine.
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

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You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
448 participants (estimated)

Study arms

  • Experimental
    Treatment group

    Glutaric acid linalaric acid ester capsules (50 mg bid) + amoxicillin (1 g tid), for a 14-day course.

    Drug: Linalarose Glutarate

  • Active comparator
    Control group

    Esomeprazole 20 mg, twice daily (bid) + clarithromycin 0.5 g, twice daily (bid) + amoxicillin 1 g, twice daily (bid) + colloidal bismuth subcitrate 200 mg, twice daily (bid), for a 14-day treatment course.

    Drug: Bismuth Quadruple Test

Interventions

  • DrugLinalarose Glutarate

    Glutaric acid linalaric acid ester capsules (50 mg bid) + amoxicillin (1 g tid), for a 14-day course.

  • DrugBismuth Quadruple Test

    Esomeprazole 20 mg, twice daily (bid) + clarithromycin 0.5 g, twice daily (bid) + amoxicillin 1 g, twice daily (bid) + colloidal bismuth subcitrate 200 mg, twice daily (bid), for a 14-day treatment course.

06

What researchers measure

Primary outcomes

  1. Helicobacter pylori eradication

    The primary end point of this study is H.pylori eradication#established by negative \[13C\] urea breath test #DOB value below 3.9#28 days after the end of eradication

    Time frame: 28 days after treatment

Secondary outcomes

  1. adverse events

    Participants with Adverse Events as a Measure of Safety and Tolerability.The common side effects of the study include headache,dizziness,skin rash,other gastrointestinal disorders,pyrexia,cough and back pain.

    Time frame: 14 days of treatment, and 28 days after treatment

07

Study locations

24 of 24 sites recruiting
08

References and documents

Publications

  • Huang XP, Liu YJ, Lin SW, Shao YF, Qiu F, Qiu QW, Xu ZK, Chen JX, Chen LH, Lin ZQ, Dai WH, Zhang MQ, Jiang Q, Xiao ZQ, Cheng XX, Zhang XF, You WB, Chen W, Li LQ, Lin WX, Wang YF, Lai FJ, Chen LQ, Huang ZH, Zheng WQ, Wei JQ, Lin ZH. Vonoprazan-amoxicillin dual therapy for Helicobacter pylori eradication in Chinese population: A prospective, multicenter, randomized, two-stage study. World J Gastroenterol. 2024 Jul 21;30(27):3304-3313. doi: 10.3748/wjg.v30.i27.3304. PubMed 39086752 ↗
  • Song Z, Zuo X, Zhang Z, Wang X, Lin Y, Li Y, Xu X, Huang Y, Wang Q, Shi Y, Zhou L. Ten-Day Versus 14-Day Vonoprazan and Amoxicillin Dual Therapy for the Firstline Eradication of Helicobacter pylori Infection: A Multicenter, Randomized Controlled Trial. Helicobacter. 2025 Sep-Oct;30(5):e70070. doi: 10.1111/hel.70070. PubMed 40908593 ↗

Individual participant data

Plan to share: No

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Oct 27, 2026
Show all 1 update
  1. Oct 27, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07897994
Lead sponsor
Yongquan Shi
Responsible party
Yongquan Shi (Professor, Xijing Hospital of Digestive Diseases) — Sponsor-investigator
First posted
Oct 27, 2026
Start date
Oct 1, 2026
Primary completion
Dec 30, 2027 (estimated)
Completion
May 30, 2028 (estimated)
Last update
Oct 27, 2026

Study contacts

Yongquan Shi, Ph.D
Contact
von15991351319@163.com
86-029-84771535

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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