Functional DyspepsiaPhase 2NCT01513785
New Dual Therapy for Primary Treatment of Helicobacter Pylori Infection：a Pilot Study
A Phase 2 study testing Rabeprazole and Amoxicillin and Amoxicillin and Rabeprazole in people with Functional Dyspepsia, run by Shanghai Jiao Tong University School of Medicine at 1 site in China.
Trial summary
The efficacy of traditional triple therapy has been decreased to such an unacceptable level as 70% in many areas. The study is based on the hypothesis: the most important factors which influence the effect of Helicobacter pylori (H. Read more about this study
- Who is it for?
- Ages 18 to 70 years
- Conditions the study is for
- Functional Dyspepsia
- What is being tested?
- Rabeprazole and Amoxicillin and Amoxicillin and Rabeprazole
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 40 participants
- Where
- 1 siteChina
- Study dates
- Apr 2011to Jan 2012
- Phase
- Phase 2
- 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 from 18 to 70 years, who presented with upper gastrointestinal symptoms and endoscopically proven H. pylori-positive non-ulcer dyspepsia, were recruited into the study.
Who cannot join
- patients with peptic ulcer,
- previous H. pylori eradication treatment,
- previous gastric surgery,
- pregnancy,
- lactation,
- major systemic diseases,
- receipt of anti-secretory therapy,
- antibiotics or bismuth in the preceding four weeks, or - allergy to any one of the medications in the regimen.
Trial locations and contacts
1 site in 1 country.
China1 site
GI Division, Shanghai Jiao-Tong University School of Medicine Renji Hospital
Shanghai, Shanghai Municipality, 200001
About this study
The efficacy of traditional triple therapy has been decreased to such an unacceptable level as 70% in many areas. The study is based on the hypothesis: the most important factors which influence the effect of Helicobacter pylori (H. pylori) eradication included acid suppression intensity and sensitivity of antibiotics. So the investigators chose dual therapy because it is simple and verified to be useful. Rabeprazole, as a new proton pump inhibitor (PPI), is reported to be less susceptible to the influence of genetic polymorphisms for CYP2C19. So it has a greater and faster acid suppression effect compared to other PPIs. Amoxicillin is one of effective antibiotics to H. pylori with few side effects. The antibiotic resistance of Amoxicillin is no more than 3% in China. The purpose of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens with different doses of Rabeprazole for initial treatment of H. pylori infection.
Read the detailed description
The current recommended triple regimen for H. pylori treatment provides unacceptable low success rates because of high antibiotic resistance and poor compliance. Dual therapy had been used before and can be modified to get good eradication rate. The aim of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens for initial treatment of H. pylori infection. A total of forty patients with non-ulcer dyspepsia and H. pylori infection were randomized to receive either Rabeprazole 10 mg b.i.d. and Amoxicillin 1000 mg t.i.d., for 14 days (R10A), or high-dose Rabeprazole 20 mg twice a day (b.i.d.) and Amoxicillin 1000 mg three times a day (t.i.d) (R20A) for 14 days. H. pylori strains were isolated and antibiotic resistance was measured by the twofold agar dilution method. H. pylori eradication was assessed by 13C-urea breath test at 4 weeks after treatment.
- Conditions
- Functional Dyspepsia
- Being tested
- Rabeprazole and Amoxicillin, Amoxicillin and Rabeprazole
- Keywords
- H. pylori, Dual therapy, Amoxicillin, Rabeprazole
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Rabeprazole and AmoxicillinDrug
Also called Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated Tablets
Amoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 10 mg b.i.d.for 14 days.
Amoxicillin and RabeprazoleDrug
Also called Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated Tablets
Amoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1 g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 20 mg b.i.d. for 14 days
| Study group | Role | What they receive |
|---|---|---|
| group R20A | Active comparator | All the patients were sent to a penicillin skin test before treatment except they were given penicillin before. The group R20A will receive 14 days of Amoxicillin 1g t.i.d and Rabeprazole 20 mg b.i.d. PPI was taken 30 minutes before meals while antibiotic was taken 30 minutes after meals. Receives: Drug: Amoxicillin and Rabeprazole |
| group R10A | Active comparator | All the patients were sent to a penicillin skin test before treatment except they were given penicillin before. The group R10A will receive 14 days of Amoxicillin 1g t.i.d and Rabeprazole 10 mg b.i.d. PPI was taken 30 minutes before meals while antibiotic was taken 30 minutes after meals. Receives: Drug: Rabeprazole and Amoxicillin |
What is being measured
The primary outcome is the main question the study is designed to answer.
13C-urea breath test
When the outcome of 13C-urea breath test is more than 4%, the helicobacter pylori infection is still exist(positive).
Measured: 4 weeks after treatment
Secondary outcomes (1)
antibiotic resistance
- pylori strains were isolated and antibiotic resistance was measured by the twofold agar dilution method.Minimal inhibitory concentrations (MIC) of Metronidazole (Met), Clarithromycin (Cla), and Amoxicillin (Amo) were determined.MIC of Met>8ug/ml, Cla>2ug/ml, Amo>8ug/ml were determined as resistance breakpoints
Measured: 3 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Jan 2012 (estimated)
- Study startApr 2011
- Primary completionOct 2011
- Study completionJan 2012
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Functional DyspepsiaStudies of the same condition, open and under way.
- More trials run by Shanghai Jiao Tong University School of MedicineThe sponsor's other registered studies.
- 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 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 40 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shanghai Jiao Tong University School of Medicine
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Xiaobo Li, Shanghai Jiao Tong University School of Medicine
- Investigators
- Li X B, M.D., Ph.D., Study chair, Shanghai Jiao-Tong University School of Medicine Renji Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01513785
- Sponsor's protocol ID
- rjyyxhk0904
- Status last verified
- Jan 2012
- First submitted
- 16 Jan 2012
- Last updated
- 20 Jan 2012
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Jan 2012. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- New Dual Therapy for Primary Treatment of Helicobacter Pylori Infection：a Pilot Study
- ClinicalTrials.gov ID
- NCT01513785
- Acronym / sponsor ID
- rjyyxhk0904
- Conditions
- Functional Dyspepsia
- Keywords
- H. pylori, Dual therapy, Amoxicillin, Rabeprazole
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 40 participants (actual)
- Lead sponsor
- Shanghai Jiao Tong University School of MedicineUniversity, hospital or other
- Study start
- Apr 2011
- Primary completion
- Oct 2011 (actual)
- Study completion
- Jan 2012 (actual)
- First posted
- 20 Jan 2012 (estimated)
- 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 efficacy of traditional triple therapy has been decreased to such an unacceptable level as 70% in many areas. The study is based on the hypothesis: the most important factors which influence the effect of Helicobacter pylori (H. pylori) eradication included acid suppression intensity and sensitivity of antibiotics. So the investigators chose dual therapy because it is simple and verified to be useful. Rabeprazole, as a new proton pump inhibitor (PPI), is reported to be less susceptible to the influence of genetic polymorphisms for CYP2C19. So it has a greater and faster acid suppression effect compared to other PPIs. Amoxicillin is one of effective antibiotics to H. pylori with few side effects. The antibiotic resistance of Amoxicillin is no more than 3% in China. The purpose of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens with different doses of Rabeprazole for initial treatment of H. pylori infection.
Detailed description
The current recommended triple regimen for H. pylori treatment provides unacceptable low success rates because of high antibiotic resistance and poor compliance. Dual therapy had been used before and can be modified to get good eradication rate. The aim of our trial is to evaluate and compare the efficacy and safety of dual therapy regimens for initial treatment of H. pylori infection. A total of forty patients with non-ulcer dyspepsia and H. pylori infection were randomized to receive either Rabeprazole 10 mg b.i.d. and Amoxicillin 1000 mg t.i.d., for 14 days (R10A), or high-dose Rabeprazole 20 mg twice a day (b.i.d.) and Amoxicillin 1000 mg three times a day (t.i.d) (R20A) for 14 days. H. pylori strains were isolated and antibiotic resistance was measured by the twofold agar dilution method. H. pylori eradication was assessed by 13C-urea breath test at 4 weeks after treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| group R20A | Active comparator | Drug: Amoxicillin and RabeprazoleAll the patients were sent to a penicillin skin test before treatment except they were given penicillin before. The group R20A will receive 14 days of Amoxicillin 1g t.i.d and Rabeprazole 20 mg b.i.d. PPI was taken 30 minutes before meals while antibiotic was taken 30 minutes after meals. |
| group R10A | Active comparator | Drug: Rabeprazole and AmoxicillinAll the patients were sent to a penicillin skin test before treatment except they were given penicillin before. The group R10A will receive 14 days of Amoxicillin 1g t.i.d and Rabeprazole 10 mg b.i.d. PPI was taken 30 minutes before meals while antibiotic was taken 30 minutes after meals. |
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 from 18 to 70 years, who presented with upper gastrointestinal symptoms and endoscopically proven H. pylori-positive non-ulcer dyspepsia, were recruited into the study.
Key exclusion criteria (8 listed)
- patients with peptic ulcer,
- previous H. pylori eradication treatment,
- previous gastric surgery,
- pregnancy,
- lactation,
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 |
|---|---|---|
| Rabeprazole and AmoxicillinAlso: Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated TabletsAmoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 10 mg b.i.d.for 14 days. | Drug | group R10A |
| Amoxicillin and RabeprazoleAlso: Amoxycillin Capsules, Sodium Rabeprazole Enteric-coated TabletsAmoxicillin (Zhuhai United Laboratories Co., Zhuhai, China) 1 g t.i.d and Rabeprazole (Misato Plant of Eisai Co., Ltd. Japan) 20 mg b.i.d. for 14 days | Drug | group R20A |
Primary outcome
13C-urea breath test
Time frame: 4 weeks after treatment
When the outcome of 13C-urea breath test is more than 4%, the helicobacter pylori infection is still exist(positive).
1 secondary outcome
antibiotic resistance
Time frame: 3 weeks
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 20 Jan 2012.
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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.
Li X B, M.D., Ph.D. study chair
Shanghai Jiao-Tong University School of Medicine Renji Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Rabeprazole and Amoxicillin and Amoxicillin and Rabeprazole in people with Functional Dyspepsia, run by Shanghai Jiao Tong University School of Medicine 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 8 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 20 Jan 2012. 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
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?
13C-urea breath test (time frame: 4 weeks after treatment). 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 20 Jan 2012.