Helicobacter Rescue Therapy With High-dose Esomeprazole and Amoxicillin Dual Therapy Versus Bismuth-containing Quadruple Therapy

Xijing Hospital of Digestive Diseases658 enrolled

Overview

This study aims at evaluating efficacy and safety of high-dose esomeprazole and amoxicillin dual therapy(esomeprazole and amoxicillin) versus bismuth-containing quadruple Therapy(bismuth，esomeprazole，tetracycline and furazolidone) in H. pylori rescue therapy. It is hypothesized that high-dose esomeprazole and amoxicillin dual therapy is non-inferior to bismuth-containing quadruple Therapy. Patients with confirmed failure of H. pylori eradication will be randomized to one of the treatments described above. At week 6 follow-up visits, a urea breath test，rapid urease test or helicobacter pylori stool antigen test will be performed to confirm eradication.

The study will include three phases: screening, treatment and follow-up. Screening: this phase will last a maximum of 14 days and subjects eligibility will be evaluated after signing informed consent. One of urea breath test，rapid urease test or helicobacter pylori stool antigen test will be performed in addition to the baseline routine evaluations. Treatment: Subjects are randomly assigned to treatment and will be treated for 14 days. A randomization visit will take place on Day 0 and an end-of-treatment visit will take place between day 14 and 16. Follow-up: includes one visits. Approximately 28 days after the end of treatment. Eradication of H. Pylori will be confirmed by one of urea breath test，rapid urease test or helicobacter pylori stool antigen test.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Enrollment

658

Conditions

Gastritis

Interventions

EsomeprazoleDRUG

High-dose esomeprazole and amoxicillin dual therapy: given for 14 days at a dose of esomeprazole 40mg 1 tablet TID plus amoxicillin 500 mg 2 capsules TID

AmoxicillinDRUG

High-dose esomeprazole and amoxicillin dual therapy: given for 14 days at a dose of amoxicillin 500 mg 2 capsules TID plus esomeprazole 40mg 1 tablet TID

BismuthDRUG

Bismuth-containing quadruple therapy: given for 14 days at a dose of bismuth 110 mg 2 capsules BID plus esomeprazole 40 mg 1 tablets BID，tetracycline 250mg 2 capsules TID and furazolidone 100mg 1 tablets BID

EsomeprazoleDRUG

Bismuth-containing quadruple therapy: given for 14 days at a dose of esomeprazole 40mg 1 tablet BID plus bismuth 110 mg 2 capsules BID，tetracycline 250mg 2 capsules TID and furazolidone 100mg 1 tablets BID

TetracyclineDRUG

Bismuth-containing quadruple therapy:given for 14 days at a dose of tetracycline 250mg 2 capsules TID plus furazolidone 100mg 1 tablets BID，esomeprazole 40 mg 1 tablets BID and bismuth 110 mg 2 capsules BID

FurazolidoneDRUG

Bismuth-containing quadruple therapy:given for 14 days at a dose of furazolidone 100mg 1 tablets BID plus tetracycline 250mg 2 capsules TID，esomeprazole 40 mg 1 tablets BID and bismuth 110 mg 2 capsules BID

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Patients who had failed H.pylori eradication therapies before. 2. Age between 18\~70, both gender. 3. Patients who had failed H.pylori eradication therapies during last 2 years and stop the eradication therapies for at least 3 months. 4. Women are eligible if they are not pregnant or nursing, and if they are of childbearing potential they are required to use medically acceptable contraception for the duration of the study and 30 days thereafter. Exclusion Criteria: 1. Patients are excluded if they have previously used tetracycline and furazolidone antibiotics to eradicate infection with H. pylori. 2. Contraindications to study drugs. 3. Substantial organ impairment, severe or unstable cardiopulmonary or endocrine disease. 4. Constant use of anti-ulcer drugs ( including taking proton-pump. inhibitors(PPI) within 2 weeks before the \[13C\] urea breath test), antibiotics or bismuth complexes (more than 3 times /1 month before screening). 5. Pregnant or lactating women. 6. Underwent upper gastrointestinal Surgery. 7. Patients with moderate or severe atypical hyperplasia or high-grade intraepithelial neoplasia. 8. have symptom of dysphagia. 9. Evidence of bleeding or iron efficiency anemia. 10. A history of malignancy. 11. Drug or alcohol abuse history in the past 1 year. 12. Systemic use of corticosteroids, non steroidal anti-inflammatory drugs, anticoagulants, platelet aggregation inhibitors (except the use of aspirin for less than 100 mg/d). 13. a person with a mental disorder. 14. Enrolled in other clinical trials in the past 3 months. 15. Refuse to sign informed consent.

Outcomes

Primary Outcomes

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

symptoms effective rates

symptoms improvement rates Evaluation improvement rate of symptoms 2 weeks of treatment and 4 weeks after the end of treatment. Symptom improvement rate =#total score before treatment - total score after treatment#/total score before treatment x100%. Total score = frequency + severity.Frequency score is calculated by all the frequency of heartburn, reflux, abdominal pain, and flatulence, etc. Severity is accumulated by the degree of symptoms described above, which is divided to 4 degree as 0 presenting none, and 3 presenting most severe

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

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.