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Gastroesophageal RefluxNCT04720781

The Need of Revisiting to an Outpatient Clinic After the Prescription of Vonoprazan or Esomeprazole

A study testing Vonoprazan and Esomeprazole in people with Gastroesophageal Reflux, run by Showa Inan General Hospital at 1 site in Japan.

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

After vonoprazan (20mg/day) or esomeprazole (20mg/day) for 4weeks is prescribed for patients with erosive esophagitis diagnosed by esophagogastroduodenoscopy, the number of patients who will visit our outpatient clinic again due to some reasons without any appointments is compared with vonoprazan group and… Read more about this study

Who is it for?
Ages 19 to 100 years
Conditions the study is for
Gastroesophageal Reflux
What is being tested?
Vonoprazan and Esomeprazole
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
300 participants
Where
1 siteJapan
Study dates
21 Jan 2021to 31 Dec 2024
Phase
Interventional
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 19 to 100 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • outpatients belonging to American Society of Anesthesiologists class I or II
  • patients have erosive esophagitis diagnosed by esophagogastroduodenoscopy shortly before the prescription

Who cannot join

  • other acid blockers are taken

Trial locations and contacts

1 site in 1 country.

Japan1 site
  • Showa Inan General hospital

    Komagane, Nagano, 399-4191

Other trials in Japan

About this study

Official title: The Need of Revisiting to an Outpatient Clinic After the Prescription of Vonoprazan or Esomeprazole for 4weeks for Erosive Esophagitis Without Any Appointments

After vonoprazan (20mg/day) or esomeprazole (20mg/day) for 4weeks is prescribed for patients with erosive esophagitis diagnosed by esophagogastroduodenoscopy, the number of patients who will visit our outpatient clinic again due to some reasons without any appointments is compared with vonoprazan group and esomeprazole.

Read the detailed description
  1. Patients who have erosive esophagitis diagnosed by esophagogastroduodenoscopy is enrolled.
  2. Vonoprazan (20mg/day) or esomeprazole (20mg/day) is prescribed for 4weeks the patients randomly without next appointments.
  3. Some patients may visit our outpatient clinic again due to some reasons without any appointments.
  4. The number of the patients who revisit our outpatient clinic again is compared with vonoprazan group and esomeprazole.
Being tested
Vonoprazan, Esomeprazole
Medical subject headings
Gastroesophageal Reflux

What participants receive

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

  • VonoprazanDrug

    Also called Esomeprazole

    Vonoprazan (20mg/day) is prescribed for 4 weeks.

  • EsomeprazoleDrug

    esomeprazole (20mg/day)

Study groups in NCT04720781
Study groupRoleWhat they receive
VonoprazanActive comparatorVonoprazan (20mg/day) is prescribed for patients with erosive esophagitis
Receives: Drug: Vonoprazan
EsomeprazolePlacebo comparatorEsomeprazole (20mg/day) is prescribed for patients with erosive esophagitis
Receives: Drug: Esomeprazole

What is being measured

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

  1. The number of patients who revisit our outpatient clinic after the prescription without any appointments

    The need to revisit our outpatient clinic again without any appointments may show the patients' satisfaction or dissatisfaction after the prescription of vonoprazan or esomeprazole. The difference in the number between the two groups may show the difference in the effectiveness between the two medicines.

    Measured: 3 months

Secondary outcomes (1)
  1. Change of the main symptom with patients after/before medication when the patients revisit again

    The ratio of the degree of the main symptom after/before taking the medicine Good 0%- Bad 100%

    Measured: 3 months

Timeline

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

  1. First posted22 Jan 2021
  2. Study start21 Jan 2021
  3. Primary completion31 Dec 2024
  4. Study completion31 Dec 2024

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 N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
300 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04720781
Sponsor's protocol ID
Revisiting
Status last verified
May 2025
First submitted
17 Jan 2021
Last updated
18 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Vonoprazan and Esomeprazole in people with Gastroesophageal Reflux, run by Showa Inan General Hospital at 1 site in Japan.

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 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: finished, as of the sponsor's last update on 18 May 2025. 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 Japan. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

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?

The number of patients who revisit our outpatient clinic after the prescription without any appointments (time frame: 3 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 18 May 2025.

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