AzTrials
AzTrials

Helicobacter PyloriPhase 1NCT04753437

A Study of Vonoprazan in Adults With Helicobacter Pylori

A Phase 1 study testing Clarithromycin, Amoxicillin and Bismuth potassium citrate in people with Helicobacter Pylori, run by Takeda 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
Search all trials

Trial summary

Helicobacter Pylori (H Pylori) is a bug found in the digestive system. It can cause soreness and redness in the stomach (gastritis). It can also cause ulcers in the stomach and other parts of the digestive system. Vonoprazan is a medicine to treat people with H Pylori. Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Helicobacter Pylori
What is being tested?
Clarithromycin, Amoxicillin and Bismuth potassium citrate
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
44 participants
Where
1 siteChina
Study dates
6 Apr 2021to 5 Nov 2021
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • HP positive participants.
  • Weighs at least 50 kilogram (kg) and has a body mass index between greater than (>) 18 and less than equal to (<=) 30 kilogram per square meter (kg/m^2), inclusive, at screening and Day -1 (check-in).
  • Is willing to abstain from strenuous exercise from 72 hours before first dose (Day 1) until the Follow-up call on Day 17.

Who cannot join

  • Has a positive urine drug result for drugs of abuse at Screening or Check-in (Day -1).
  • Has a history of drug abuse (defined as any illicit drug use) or a history of alcohol abuse (defined as regular consumption of 21 units or more units per week) at any time prior to the Screening Visit or is unwilling to agree to abstain from alcohol and drugs throughout the study (up to Day 17).
  • Has history of gastroesophageal reflux disease (GERD), symptomatic GERD, erosive esophagitis, duodenal ulcer, gastric ulcer, Barrett's esophagus, or Zollinger-Ellison syndrome, or has current or recent (within 6 months) gastrointestinal disease that would be expected to influence the absorption of drugs.
  • Has undergone therapeutic upper gastrointestinal endoscopic therapy (example, endoscopic hemostasis or excision including biopsy) within 30 days prior to Screening.
  • Has undergone major surgical procedures within the past 1 month or are scheduled to undergo surgical procedures that may affect gastric acid secretion (example, abdominal surgery, vagotomy, or craniotomy).
  • Has a history of cancer, except basal cell carcinoma or Stage 1 squamous cell carcinoma of the skin that has been in remission for at least 5 years prior to Day 1.
Show all 12Show fewer
  • Has a positive test result for hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibody, human immunodeficiency virus (HIV) antibody/antigen at Screening.
  • Has used nicotine-containing products (including but not limited to cigarettes, pipes, cigars, chewing tobacco, nicotine patch or nicotine gum) within 6 weeks prior to Check-in. Cotinine test is positive at Screening or Check-in.
  • Has poor peripheral venous access.
  • Has donated or lost 450 milliliter (mL) or more of his blood volume (including plasmapheresis), or had a transfusion of any blood product within 90 days prior to Day 1.
  • Has abnormal Screening or Check-in laboratory values that suggest a clinically significant underlying disease or subject with the following laboratory abnormalities: alanine aminotransferase (ALT), aspartate aminotransferase (AST) or total bilirubin > the upper limit of normal (ULN).
  • Has reduced renal function assessed by having an estimated glomerular filtration rate <90 milliliter per min per 1.73 square meter (mL/min/1.73 m^2) (as estimated by Chronic Kidney Disease-Epidemology Collaboration) at Screening or Check-in.

Trial locations and contacts

1 site in 1 country.

China1 site
  • West China Hospital, Sichuan University, Phase I Unit

    Chengdu, Sichuan, 610041

Other trials in China

About this study

Official title: A Phase 1, Double-Blind, Parallel Group Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Quadruple Therapy (Bismuth, Clarithromycin, and Amoxicillin) With Vonoprazan Versus Quadruple Therapy With Esomeprazole

Helicobacter Pylori (H Pylori) is a bug found in the digestive system. It can cause soreness and redness in the stomach (gastritis). It can also cause ulcers in the stomach and other parts of the digestive system. Vonoprazan is a medicine to treat people with H Pylori. It is taken together with other medicines to fight infections caused by H Pylori.

The main aim of this study is to learn if vonoprazan changes how the other medicines are processed by the body. It will be compared with another medicine called esomeprazole. Other aims are to check for side effects from the study medicines.

Read more

At the first visit, the study doctor will check who can take part. Participants who take part will be picked for 1 of 2 treatments by chance.

  • Vonoprazan taken with bismuth, clarithromycin, and amoxicillin
  • Esomeprazole taken with bismuth, clarithromycin, and amoxicillin

Both treatments will last for 14 days. Participants will stay in the clinic throughout their treatment.

After treatment, the clinic staff will telephone the participants 2 days later for a check-up. The participants will visit the clinic 4 weeks later for a final check-up.

Read the detailed description

This is a study in healthy participants with Helicobacter pylori (HP positive) to evaluate the safety, tolerability and PK of a quadruple therapy with bismuth, clarithromycin, amoxicillin, and vonoprazan versus quadruple therapy with bismuth, clarithromycin, amoxicillin, and esomeprazole.

The treatment phase consists of quadruple therapy twice daily (BID) with bismuth potassium citrate (600 mg), clarithromycin (500 mg), amoxicillin (1000 mg), and vonoprazan (20 mg) (Group B) or quadruple therapy BID with bismuth potassium citrate (600 mg), clarithromycin (500 mg), amoxicillin (1000 mg), and esomeprazole (20 mg) (Group A) from Days 1 to 14. Participants will be discharged on Day 15 after all procedures have been performed.

This single-center will be conducted in China. Participants will remain confined to the study site from check-in (Day -1) through Day 15 and will followed up through call on Day 17 and return on Day 42 for a follow-up assessment.

Being tested
Clarithromycin, Amoxicillin, Bismuth potassium citrate, Esomeprazole, Vonoprazan
Keywords
Drug Therapy

What participants receive

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

  • ClarithromycinDrug

    Clarithromycin tablets.

  • AmoxicillinDrug

    Amoxicillin capsules.

  • Bismuth potassium citrateDrug

    Bismuth potassium citrate tablets.

  • EsomeprazoleDrug

    Esomeprazole tablets.

  • VonoprazanDrug

    Also called TAK-438

    Vonoprazan tablets.

Study groups in NCT04753437
Study groupRoleWhat they receive
Clarithromycin + Amoxicillin + Bismuth + VonoprazanExperimentalClarithromycin 500 milligram (mg), tablets, orally, BID, along with amoxicillin 1000 mg, capsules, orally, BID, bismuth potassium citrate 600 mg, capsules, orally, BID, and vonoprazan 20 mg, tablets, orally, BID on Days 1 to 14.
Receives: Drug: Clarithromycin; Drug: Amoxicillin; Drug: Bismuth potassium citrate; Drug: Vonoprazan
Clarithromycin + Amoxicillin + Bismuth + EsomeprazoleActive comparatorClarithromycin 500 mg, tablets, orally, BID, along with amoxicillin 1000 mg, capsules, orally, BID, bismuth potassium citrate 600 mg, capsules, orally, BID, and esomeprazole 20 mg, tablets, orally, BID on Days 1 to 14.
Receives: Drug: Clarithromycin; Drug: Amoxicillin; Drug: Bismuth potassium citrate; Drug: Esomeprazole

What is being measured

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

  1. Cmax: Maximum Observed Plasma Concentration for Bismuth

    Measured: Day 14: 0 to 12 hours after the morning dose

  2. AUCτ: Area Under the Plasma Concentration-time Curve During a Dosing Interval τ for Bismuth

    Measured: Day 14: 0 to 12 hours after the morning dose

  3. Aeτ: Total Amount of Bismuth Excreted in Urine During a Dosing Interval τ for Bismuth

    Measured: Day 14: 0 to 12 hours after the morning dose

Secondary outcomes (2)
  1. Percentage of Participants Who Experience at Least One Treatment-Emergent Adverse Event (TEAE)

    An adverse event (AE) is defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (e.g., a clinically significant abnormal laboratory finding), symptom, or disease temporally associated with the use of a drug, whether or not it is considered related to the drug. A TEAE is defined as an AE with an onset that occurs after receiving study drug.

    Measured: From the first dose of study drug up to Day 17

  2. Percentage of Participants Who Discontinued Study Drug Due to a Treatment-Emergent Adverse Event (TEAE)

    Measured: From the first dose of study drug up to Day 17

Timeline

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

  1. First posted15 Feb 2021
  2. Study start6 Apr 2021
  3. Primary completion27 Sep 2021
  4. Study completion5 Nov 2021

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 1
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
44 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04753437
Sponsor's protocol ID
Vonoprazan-1001
Other IDs
U1111-1257-0258
Status last verified
Oct 2022
First submitted
12 Feb 2021
Last updated
31 Aug 2023
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Takeda provides access to the de-identified individual participant data (IPD) for eligible studies to aid qualified researchers in addressing legitimate scientific objectives (Takeda's data sharing commitment is available on https://clinicaltrials.takeda.com/takedas-commitment?commitment=5). These IPDs will be provided in a secure research environment following approval of a data sharing request, and under the terms of a data sharing agreement.

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Clarithromycin, Amoxicillin and Bismuth potassium citrate in people with Helicobacter Pylori, run by Takeda 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 3 inclusion and 12 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 31 Aug 2023. 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Aug 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Cmax: Maximum Observed Plasma Concentration for Bismuth (time frame: Day 14: 0 to 12 hours after the morning dose). The study lists 3 primary outcomes in all. 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 31 Aug 2023.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in