Helicobacter Pylori InfectionPhase 4NCT03565484
Antimicrobial Susceptibility Testing Guided Therapy Versus Empirical Therapy for the Rescue Treatment of Helicobacter Pylori Infection
A Phase 4 study testing susceptibility guided therapy, personal medication history guided therapy and salvage treatment for failed eradication in people with Helicobacter Pylori Infection, run by Shandong University at 1 site in China.
Trial summary
The purpose of this study is to assess efficacy of 14-day antimicrobial susceptibility test guided quadruple therapy for the rescue treatment of Helicobacter pylori infection, then comparing it with 14-day personal medication history guided therapy to tell which one has a better performance in both efficacy and safety. Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Helicobacter Pylori Infection
- What is being tested?
- susceptibility guided therapy, personal medication history guided therapy and salvage treatment for failed eradication
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 400 participants
- Where
- 1 siteChina
- Study dates
- 1 Jan 2019to 30 Jun 2020
- Phase
- Phase 4
- 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 18 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients aged 18-70 with H. pylori infection. Patients with previous H. pylori eradication therapy for one or two times.
Who cannot join
- Patients unable or unwilling to receive gastroscopy; Patients treated with H2-receptor antagonist, PPI, bismuth and antibiotics in the previous 4 weeks; Patients with gastrectomy, acute GI bleeding and advanced gastric cancer; Patients with known or suspected allergy to study medications; Currently pregnant or lactating; Inability to provide informed consent and other situations that could interfere with the examination or therapeutic protocol.
Trial locations and contacts
1 site in 1 country.
Xiuli Zuo, MD,PhD contact
China1 site, 1 recruiting
- Recruiting
Qilu hosipital
Jinan, Shandong, 257000
Xiuli Zuo, MD,PhD, 15588818685 ext. 053188369277, zuoxiuli@sina.com
Chaoran Ji, MD
About this study
Official title: 14-Day Antimicrobial Susceptibility Testing Guided Therapy Versus Personal Medication History Guided Therapy as a Rescue Treatment of Helicobacter Pylori Infection-A Randomized Controlled Trail
The purpose of this study is to assess efficacy of 14-day antimicrobial susceptibility test guided quadruple therapy for the rescue treatment of Helicobacter pylori infection, then comparing it with 14-day personal medication history guided therapy to tell which one has a better performance in both efficacy and safety.
Read the detailed description
Helicobacter pylori (H.pylori), which infects about 50% of the global population, has been recognized as a main risk factor of multiple gastric pathology, especially non-cardiac gastric cancer. Strong evidence supports that H.pylori eradication is an effective approach to reduce the incidence of those pathological processes. Antimicrobial susceptibility test can pick out sensitive drugs to kill Helicobacter pylori, and reduce secondary drug resistance. But, there is a lack of high quality RCT to compare its efficacy with empirical regimen in the rescue treatment.
This study aims to assess the efficacy of 14-day antimicrobial susceptibility test guided quadruple therapy for the rescue treatment of Helicobacter pylori infection. Comparing this regimen with 14-day personal Medication History guided therapy to tell which one is better in clinic practice. Alterations in H.pylori assosicated dyspepsia and safety outcomes will also be evaluated.
- Conditions
- Helicobacter Pylori Infection
- Being tested
- susceptibility guided therapy, personal medication history guided therapy, salvage treatment for failed eradication
- Keywords
- Antimicrobial Susceptibility Testing, Rescue Therapy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
susceptibility guided therapyDrug
Patients will take a gastroscopy and 2 biopsies will be attained from antrum and gastric body for H.pylori culture and antimicrobial susceptibility testing (AST). The susceptibility of amoxicillin, clarithromycin, metronidazole, levofloxacin, furazolidone and tetracycline will be tested.Then patients with positive culture will be treated with a 14-day quadruple therapy for the H.pylori eradication. The regimen contains rabeprazole 20mg bid, colloidal bismuth pectin 200mg bid, and two sensitive antibiotics determined by AST. Dose of two sensitive antibiotics are listed as follows : amoxicillin 1000mg bid, clarithromycin 500mg bid, tinidazole 500mg tid, levofloxacin 500mg qd, furazolidone 100mg bid, tetracycline 500mg qid.
personal medication history guided therapyDrug
Patients will be treated with a 14-day emprical tailored quadruple therapy for the H.pylori eradication. The regimen contains rabeprazole 20mg bid， colloidal bismuth pectin 200mg bid and two antibiotics based on personal medication history. If the patient doesn't have levofloxacin history, he will be treated with amoxicillin 1000mg bid plus levofloxacin 500mg bid. Otherwise, he will be treated with amoxicillin 1000mg bid and furazolidone 100mg bid.
salvage treatment for failed eradicationDrug
If the patients failed with AST guided eradication therapy or empirical therapy, patients will be treated with another 14-day bismuth-based quadruple therapy. The regimen contains rabeprazole 20mg bid, colloidal bismuth pectin 200mg bid, tetracycline 500mg qid and furazolidone 100mg bid.
| Study group | Role | What they receive |
|---|---|---|
| Antimicrobial susceptibility testing guided therapy | Experimental | 14d bismuth quadruple therapy based on susceptibility test. Receives: Drug: susceptibility guided therapy |
| Personal medication history guided therapy | Experimental | 14d bismuth quadruple therapy based on previous medication history. Receives: Drug: personal medication history guided therapy |
| Salvage therapy for negative culture | Other | 14d bismuth quadruple therapy based on previous medication history. Receives: Drug: personal medication history guided therapy |
| Salvage therapy for failed eradication | Other | 14d bismuth quadruple therapy for salvage treatment. Receives: Drug: salvage treatment for failed eradication |
What is being measured
The primary outcome is the main question the study is designed to answer.
Eradication rates in 2 groups
Both intention to treat(ITT) and per-protocol(PP) analyses will be used for the assessment of the eradication rates of Helicobacter pylori infections in two groups. The ITT analysis includes all randomly assigned patients. The PP analysis is limited to patients who take over 80% of the study medications and complete follow-up.
Measured: 6 months
Secondary outcomes (1)
The rate of improving dyspepsia symptoms after Helicobacter pylori eradication.
Dyspepsia symptoms will be measured using a 8-point Likert scale, and patients rate their symptoms from 0 (none) to 8 (severe) before and after the Helicobacter pylori eradication.
Measured: 6 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Jun 2018
- Study start1 Jan 2019
- Primary completion30 May 2020 (estimated)
- Study completion30 Jun 2020 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Helicobacter 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
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 400 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Shandong University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Xiuli Zuo, Shandong University
- Investigators
- Xiuli Zuo, MD,PhD, Principal investigator, Qilu Hospital of Shandong University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03565484
- Sponsor's protocol ID
- 2017SDU-QILU-G004
- Status last verified
- May 2020
- First submitted
- 18 Jun 2018
- Last updated
- 12 May 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 12 May 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 14-Day Antimicrobial Susceptibility Testing Guided Therapy Versus Personal Medication History Guided Therapy as a Rescue Treatment of Helicobacter Pylori Infection-A Randomized Controlled Trail
- ClinicalTrials.gov ID
- NCT03565484
- Acronym / sponsor ID
- 2017SDU-QILU-G004
- Conditions
- Helicobacter Pylori Infection
- Keywords
- Antimicrobial Susceptibility Testing, Rescue Therapy
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 400 participants (estimated)
- Lead sponsor
- Shandong UniversityUniversity, hospital or other
- Study start
- 1 Jan 2019 (actual)
- Primary completion
- 30 May 2020 (estimated)
- Study completion
- 30 Jun 2020 (estimated)
- First posted
- 21 Jun 2018 (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.
The purpose of this study is to assess efficacy of 14-day antimicrobial susceptibility test guided quadruple therapy for the rescue treatment of Helicobacter pylori infection, then comparing it with 14-day personal medication history guided therapy to tell which one has a better performance in both efficacy and safety.
Detailed description
Helicobacter pylori (H.pylori), which infects about 50% of the global population, has been recognized as a main risk factor of multiple gastric pathology, especially non-cardiac gastric cancer. Strong evidence supports that H.pylori eradication is an effective approach to reduce the incidence of those pathological processes. Antimicrobial susceptibility test can pick out sensitive drugs to kill Helicobacter pylori, and reduce secondary drug resistance. But, there is a lack of high quality RCT to compare its efficacy with empirical regimen in the rescue treatment.
This study aims to assess the efficacy of 14-day antimicrobial susceptibility test guided quadruple therapy for the rescue treatment of Helicobacter pylori infection. Comparing this regimen with 14-day personal Medication History guided therapy to tell which one is better in clinic practice. Alterations in H.pylori assosicated dyspepsia and safety outcomes will also be evaluated.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 4
| Arm | Type | Receives |
|---|---|---|
| Antimicrobial susceptibility testing guided therapy | Experimental | Drug: susceptibility guided therapy14d bismuth quadruple therapy based on susceptibility test. |
| Personal medication history guided therapy | Experimental | Drug: personal medication history guided therapy14d bismuth quadruple therapy based on previous medication history. |
| Salvage therapy for negative culture | Other | Drug: personal medication history guided therapy14d bismuth quadruple therapy based on previous medication history. |
| Salvage therapy for failed eradication | Other | Drug: salvage treatment for failed eradication14d bismuth quadruple therapy for salvage treatment. |
Who may qualify
- Ages
- 18 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Patients aged 18-70 with H. pylori infection. Patients with previous H. pylori eradication therapy for one or two times.
Key exclusion criteria (1 listed)
- Patients unable or unwilling to receive gastroscopy; Patients treated with H2-receptor antagonist, PPI, bismuth and antibiotics in the previous 4 weeks; Patients with gastrectomy, acute GI bleeding and advanced gastric cancer; Patients with known or suspected allergy to study medications; Currently pregnant or lactating; Inability to provide informed consent and other situations that could interfere with the examination or therapeutic protocol.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| susceptibility guided therapyPatients will take a gastroscopy and 2 biopsies will be attained from antrum and gastric body for H.pylori culture and antimicrobial susceptibility testing (AST). The susceptibility of amoxicillin, clarithromycin, metronidazole, levofloxacin, furazolidone and tetracycline will be tested.Then patients with positive culture will be treated with a 14-day quadruple therapy for the H.pylori eradication. The regimen contains rabeprazole 20mg bid, colloidal bismuth pectin 200mg bid, and two sensitive antibiotics determined by AST. Dose of two sensitive antibiotics are listed as follows : amoxicillin 1000mg bid, clarithromycin 500mg bid, tinidazole 500mg tid, levofloxacin 500mg qd, furazolidone 100mg bid, tetracycline 500mg qid. | Drug | Antimicrobial susceptibility testing guided therapy |
| personal medication history guided therapyPatients will be treated with a 14-day emprical tailored quadruple therapy for the H.pylori eradication. The regimen contains rabeprazole 20mg bid， colloidal bismuth pectin 200mg bid and two antibiotics based on personal medication history. If the patient doesn't have levofloxacin history, he will be treated with amoxicillin 1000mg bid plus levofloxacin 500mg bid. Otherwise, he will be treated with amoxicillin 1000mg bid and furazolidone 100mg bid. | Drug | Personal medication history guided therapy, Salvage therapy for negative culture |
| salvage treatment for failed eradicationIf the patients failed with AST guided eradication therapy or empirical therapy, patients will be treated with another 14-day bismuth-based quadruple therapy. The regimen contains rabeprazole 20mg bid, colloidal bismuth pectin 200mg bid, tetracycline 500mg qid and furazolidone 100mg bid. | Drug | Salvage therapy for failed eradication |
Primary outcome
Eradication rates in 2 groups
Time frame: 6 months
Both intention to treat(ITT) and per-protocol(PP) analyses will be used for the assessment of the eradication rates of Helicobacter pylori infections in two groups. The ITT analysis includes all randomly assigned patients. The PP analysis is limited to patients who take over 80% of the study medications and complete follow-up.
1 secondary outcome
The rate of improving dyspepsia symptoms after Helicobacter pylori eradication.
Time frame: 6 months
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 12 May 2020.
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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.
Xiuli Zuo, MD,PhD contact
Xiuli Zuo, MD,PhD principal investigator
Qilu Hospital of Shandong University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing susceptibility guided therapy, personal medication history guided therapy and salvage treatment for failed eradication in people with Helicobacter Pylori Infection, run by Shandong University at 1 site in China.
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 1 inclusion and 1 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: status not confirmed, as of the sponsor's last update on 12 May 2020. 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 China. 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.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Xiuli Zuo, MD,PhD (15588818685 ext. 053188369277, zuoxiuli@sina.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Eradication rates in 2 groups (time frame: 6 months). 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 12 May 2020; AzTrials last refreshed its copy on 6 Nov 2026.