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Helicobacter Pylori InfectionPhase 4NCT05901051

High-dose Dual Therapy with Different Administration Frequencies

A Phase 4 study testing vonoprazan and Amoxicillin in people with Helicobacter Pylori Infection, run by Shanghai Jiao Tong University School of Medicine at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study is a single center, randomized controlled clinical study. The enrolled patients are HP positive. They are diagnosed as HP positive by rapid urease test and/or 13C urea breath test. According to the declaration of Helsinki, 327 patients will be included in this study. Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Helicobacter Pylori Infection
What is being tested?
vonoprazan and Amoxicillin
Could I receive a placebo?
No, everyone receives an active treatment
How many people
327 participants
Where
1 siteChina
Study dates
30 Mar 2021to 30 Sep 2023
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 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Ability and willingness to participate in the study and to sign and give informed consent
  • Confirmed H. pylori infection

Who cannot join

  • Pregnant and lactating women;
  • History of gastrointestinal malignancies;
  • History of previous subtotal gastrectomy;
  • Serious dysfunction of heart, liver, kidney, lung and other important organs and congenital diseases; Such as grade IV cardiac insufficiency, liver failure, uremia, respiratory failure, hemophilia, Wilson disease, etc;
  • History of hematological diseases
  • People who are allergic to drugs;
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  • The guardian or patient refused to join the group;
  • Alcohol and / or drug abuse (addiction or dependence) or poor compliance judged by doctors;
  • No legal capacity or poor self-knowledge
  • administration of antibiotics, bismuth, antisecretory drugs, or Chinese herb medicine in the preceding 8 weeks

Trial locations and contacts

1 site in 1 country.

China1 site
  • Renji Hospital, School of Medicine, Shanghai Jiao Tong University

    Shanghai, Shanghai Municipality, 200127

Other trials in China

About this study

Official title: Randomized and Controlled Clinical Study of High-dose Dual Therapy with Different Administration Frequencies in the Treatment of Helicobacter Pylori

This study is a single center, randomized controlled clinical study. The enrolled patients are HP positive. They are diagnosed as HP positive by rapid urease test and/or 13C urea breath test. According to the declaration of Helsinki, 327 patients will be included in this study. After obtaining the written informed consent of the patients, HP culture and drug sensitivity test will be conducted on all the selected patients with the success rate, adverse reactions, compliance, antibiotic resistance of HP and its impact on HP eradication.

Read the detailed description

According to relevant literature research, amoxicillin TID groups (including before meal group and after meal group) were given Vonorasen (Takeda China) 20mg bid and Amoxicillin 1.0 TID (Zhejiang Jinhua Kangenbei biopharmaceutical Co., Ltd.). Amoxicillin Qid group was given Vonorasen (Takeda China) 20mg bid and Amoxicillin 0.75 Qid (Zhejiang Jinhua Kangenbei biopharmaceutical Co., Ltd.), all the drugs were purchased by the patients from the hospital. The three groups were treated for 14 days respectively, and 13C urea breath test was performed 6 weeks after drug withdrawal. The negative ones were judged as HP eradication.

Being tested
vonoprazan, Amoxicillin
Keywords
Helicobacter pylori, Dual Therapy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • vonoprazanDrug

    Potassium competitive acid blocker

  • AmoxicillinDrug

    Antibiotics for H. pylori eradication

Study groups in NCT05901051
Study groupRoleWhat they receive
dual therapy AExperimentalVonoprazan 20mg bid ac and amoxicillin 0.75g qid pc
Receives: Drug: vonoprazan; Drug: Amoxicillin
dual therapy BExperimentalVonoprazan 20mg bid ac and amoxicillin 1g tid pc
Receives: Drug: vonoprazan; Drug: Amoxicillin
dual therapy CExperimentalVonoprazan 20mg bid ac and amoxicillin 1g tid ac
Receives: Drug: vonoprazan; Drug: Amoxicillin

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Helicobacter pylori eradication rate

    Six weeks after completion of therapy, H. pylori eradication was assessed by ¹³C-rea breath test. Eradication was defined as negative result from urea breath test (<4‰) (4‰ as the cutoff value).

    Measured: Six weeks after completion of therapy

Secondary outcomes (2)
  1. Rate of adverse events

    The subjects were asked to record side effects and discomfort during treatment and actual drug administration.

    Measured: Within 7 days after completion of therapy

  2. Compliance rate

    Compliance was defined as poor when they had taken less than 80% of the total medication

    Measured: Within 7 days after completion of therapy

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jun 2023
  2. Study start30 Mar 2021
  3. Primary completion10 Sep 2023
  4. Study completion30 Sep 2023

Resources

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
327 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05901051
Sponsor's protocol ID
rjyy20210815
Status last verified
Feb 2023
First submitted
24 Feb 2023
Last updated
30 Dec 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Qiu S, Huang Y, Chen J, Guo Y, Li M, Ding Z, Liang X, Lu H. Vonoprazan-Amoxicillin Dual Therapy With Different Amoxicillin Administration Regimens for Helicobacter pylori Treatment: A Randomized Controlled Trial. Helicobacter. 2024 Jul-Aug;29(4):e13118. doi: 10.1111/hel.13118.

    PubMed 39087868

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing vonoprazan and Amoxicillin in people with Helicobacter Pylori Infection, 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 2 inclusion and 10 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 30 Dec 2024. 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?

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?

Helicobacter pylori eradication rate (time frame: Six weeks after completion of therapy). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05901051, which also lists 1 linked publication.

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 30 Dec 2024.

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