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Not yet recruitingNCT06004401Updated Aug 22, 2023

The Observation on the Efficacy of Dual Therapy Based on Vonoprazan in Eradicating Helicobacter Pylori

An interventional study of Vonopazan +Amoxicillin and Rabeprazole +colloidal pectin bismuth +Amoxicillin +Clarithromycin in The Eradication Rate of Helicobacter Pylori, sponsored by Shanghai Changzheng Hospital. Not yet recruiting. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2023-08-22.

Sponsored by Shanghai Changzheng Hospital · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Aug 2025, 1 year 1 month ago, but the record still lists the study as not yet recruiting.
Phase
Not applicable
Study type
Interventional
Enrollment
400
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
All
01

Study summary

Helicobacter pylori(Hp)is listed as a Class 1 carcinogen by the International Agency for Research of Cancer (IARC), Eradicating Hp can significantly reduce the risk of gastric cancer. In recent years, the resistance rate of Hp to antibiotics, especially Clarithromycin and Metronidazole, has increased, leading to the gradual reduction of the eradication rate . In addition, PPI is mainly metabolized by CYP2C19 in the body, and the genetic polymorphism of this enzyme activity in the population results in significant individual differences in the acid suppression effect of PPI; At the same time, PPI will affect the metabolism of other drugs by affecting the activity of CYP2C19 in the liver.

Potassium ion competitive acid blockers (P-CABs) are a new type of antacids, and vonoprazan is a representative of this class of drugs. Compared to traditional proton pump inhibitors, it has higher selectivity towards proton pumps, stronger acid inhibition effect, faster onset time , longer sustained acid inhibition time, and less influence from food consumption. Therefore, it can effectively eliminate Helicobacter pylori . In recent years, Vonoprazan has been widely used in the eradication treatment of Hp . Vonoprazan can inhibit gastric acid secretion more strongly and persistently, therefore, eradication plans based on vonoprazan are expected to improve the eradication rate of Hp.

Related studies have shown that compared to traditional proton pump inhibitors, vonoprazan has a more significant therapeutic effect and higher safety in the treatment of Helicobacter pylori positive peptic ulcers due to its unique mechanism of action..In recent years, there have been reports of successful eradication of multi drug resistant Hp retreated patients with Semisynthesis tetracycline. Some domestic scholars are also gradually trying to use Semisynthesis tetracycline to eradicate Hp infection. Minocycline is a Semisynthesis tetracycline. The drug sensitivity test in vitro showed that the resistance rate of Hp to Minocycline was low , suggesting that Minocycline may have a better effect on eradicating Hp.

Therefore, the investigators further carried out a prospective single center clinical study and set up a penicillin negative group. One month after treatment, 13C carbon breath test was performed to check the efficacy, in order to explore the efficacy of the combination therapy based on vonoprazan in eradicating Hp, especially whether it is a good choice for penicillin allergy.

Read the detailed description

After one month of treatment, a 13C carbon breath test was conducted to investigate the efficacy of a dual therapy based on vorolaxen in eradicating Hp, especially for those allergic to penicillin.

02

Conditions studied

  • The Eradication Rate of Helicobacter Pylori
03

In context

Lead sponsor

Shanghai Changzheng Hospital is the lead sponsor of 125 studies on the registry; 60 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:•

  1. Male or female aged 18-75;
  2. Initial treatment patients with Helicobacter pylori infection (positive 13C carbon breath test/positive Hp in gastroscopy pathological biopsy);
  3. Not taking antibiotics, bismuth agents, or traditional Chinese medicine with antibacterial effects (Isatis indigotica, berberine, honeysuckle, forsythia suspensa) in the first 4 weeks; I did not take drugs that affect Hp activity such as PPI or H2 receptor antagonists in the first two weeks.

    -

    Exclusion Criteria:

    • 1)Age\<18 years old or>75 years old; 2)Pregnant and lactating women; 3)Patients with severe primary diseases such as cardiovascular, liver, kidney, and hematopoietic systems, as well as mental illness.

      4)History of Drug allergy used in the treatment.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
400 participants (estimated)

Study arms

  • Experimental
    Penicillin negative test group

    (Vonopazan 20mg 2//day+Amoxicillin 1.0g 3/day)\*14 days

    Drug: Vonopazan +Amoxicillin

  • Active comparator
    Penicillin negative contral group

    (Rabeprazole tablets 10mg 2/day+colloidal pectin bismuth 200mg 2/day+Amoxicillin 1g 2/day+Clarithromycin 500mg 2/day)\*14 days

    Drug: Rabeprazole +colloidal pectin bismuth +Amoxicillin +Clarithromycin

  • Experimental
    Penicillin positive test group

    (Vonopazan 20mg 2/day+Minocycline 100mg 2/day)\*14 days

    Drug: Vonopazan +Minocycline

  • Active comparator
    Penicillin positive control group

    (Rabeprazole tablets 10mg 2/day+colloidal pectin bismuth 200mg 2/day+Metronidazole 0.4g 3/day+Clarithromycin 500mg 2/day)\*14 days

    Drug: Rabeprazole +colloidal pectin bismuth +Metronidazole +Clarithromycin

Interventions

  • DrugVonopazan +Amoxicillin

    Vonopazan 20mg 2//day+Amoxicillin

  • DrugRabeprazole +colloidal pectin bismuth +Amoxicillin +Clarithromycin

    Rabeprazole tablets 10mg 2/day+colloidal pectin bismuth 200mg 2/day+Amoxicillin 1g 2/day+Clarithromycin 500mg 2/day

  • DrugVonopazan +Minocycline

    Vonopazan 20mg 2/day+Minocycline 100mg 2/day

  • DrugRabeprazole +colloidal pectin bismuth +Metronidazole +Clarithromycin

    Rabeprazole tablets 10mg 2/day+colloidal pectin bismuth 200mg 2/day+Metronidazole 0.4g 3/day+Clarithromycin 500mg 2/day

06

What researchers measure

Primary outcomes

  1. The eradication rate of Helicobacter pylori

    whether the dual therapy based on vorolaxen has advantages over traditional quadruple therapy in penicillin negative and positive patients

    Time frame: two years

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 22, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06004401
Lead sponsor
Shanghai Changzheng Hospital
Responsible party
Wei-Fen Xie (Head of gastroenterology,Shanghai Changzheng Hospital, Shanghai Changzheng Hospital) — Principal investigator
First posted
Aug 22, 2023
Start date
Aug 20, 2023 (estimated)
Primary completion
Aug 31, 2025 (estimated)
Completion
Dec 31, 2025 (estimated)
Last update
Aug 22, 2023

Oversight

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

Not currently enrolling

This study is not yet recruiting, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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