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Reflux EsophagitisPhase 4NCT01008696

An Efficacy Study to Compare the Treatment Effects of Rabeprazole and Lansoprazole Depending on the Genotyping of CYP2C19 in Treating Reflux Esophagitis

A Phase 4 study testing Rabeprazole and Lansoprazole in people with Reflux Esophagitis, run by Janssen Korea, Ltd., Korea.

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

The purpose of this study is to compare the treatment effects of rabeprazole and lansoprazole depending on the genotyping (process of determining the genetic constitution) of CYP2C19 in treating reflux esophagitis (caused by gastroesophageal reflux; deterioration of the protective lining on the inner wall of the lower… Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Reflux Esophagitis
What is being tested?
Rabeprazole and Lansoprazole
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
217 participants
Where
No sites listed yet
Study dates
May 2007to Aug 2008
Phase
Phase 4
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 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Participants diagnosed with reflux esophagitis of Grade A or higher by Los Angeles (LA) classification based on the endoscopy among participants complaining of gastroesophageal reflux symptoms (such as: Heartburn, regurgitation, globus sensation, chronic [lasting a long time] cough [sudden, loud flow if air from the lungs], epigastric [area above the navel] pain, non-cardiac chest pain, hoarseness, or dysphagia), or those who diagnosed with reflux esophagitis of Grade B or higher without complaining of symptoms
  • Participants without other serious disease except the study indication (reflux esophagitis)
  • Participants with hematology (related to blood) panel, serum chemistry panel, or urinalysis result clinically within twice the normal range
  • Female Participants of child-bearing potential who are using the appropriate contraceptive or with a negative urine pregnancy test

Who cannot join

  • Participants with other serious gastrointestinal disease except reflux esophagitis (example: digestive tract cancer [abnormal tissue that grows and spreads in the body until it kills], hepatic disease, pancreatic disease, and ulcer. However, the scar of an ulcer is included in study targets
  • Participants with other serious concomitant disease(s) such as renal disorder, cerebrovascular disease, cardiovascular disease, hepatic disease, and severe respiratory disease
  • Participants with medical history of upper gastrointestinal tract surgery, esophagostenosis, or a chalasia
  • Participants with hematology panel, serum chemistry panel, or urinalysis result of above twice the normal range
  • Participants who cannot discontinue proton pump inhibitors or Histamine 2 antagonist which may have influence on the study, 4 weeks before the start of this clinical study

About this study

Official title: Effect of Rabeprazole and Lansoprazole on Reflux Esophagitis in Relation to CYP2C19 Genotype Status: A Prospective, Randomized, Multicenter Study

The purpose of this study is to compare the treatment effects of rabeprazole and lansoprazole depending on the genotyping (process of determining the genetic constitution) of CYP2C19 in treating reflux esophagitis (caused by gastroesophageal reflux; deterioration of the protective lining on the inner wall of the lower esophagus); and to evaluate the cure rate of reflux esophagitis on endoscopy (a thin flexible tube with a microscopic camera at the end which is passed down your throat into the esophagus, stomach, and duodenum) after treatment with rabeprazole and lansoprazole.

Read the detailed description

This is a prospective (study following participants forward in time), open-label (all people know the identity of the intervention), multi-center (conducted in more than 1 center), randomized (study drug assigned by chance) study in participants with reflux esophagitis. The study will include 4 visits: Visit 1 (Screening period of up to 14 days), Visit 2 (Day 1), Visit 3 (Day 29+3), and Visit 4 (Day 56). After Screening, eligible participants will be analyzed on Visit 2 (Day 1) for symptoms during past week, At visit 3 (Day 29+3) participants will be randomly assigned to 1 of the 2 treatment groups: rabeprazole 20 milligram (mg) or lansoprazole 30 mg group. Participants will receive rabeprazole 20 mg tablet orally once daily for 28 to 56 days or lansoprazole 30 mg capsule orally once daily for 28 to 56 days. A post-study follow-up visit will be conducted only if participant will be affected by any serious adverse event within 30 days after the completion of study drug. Participants will primarily be assessed for the cure rate of reflux esophagitis based on endoscopy of 2 groups. Participants' safety will be monitored throughout the study.

Being tested
Rabeprazole, Lansoprazole
Keywords
Reflux esophagitis, Rabeprazole, Lansoprazole
Medical subject headings
Esophagitis, Peptic

What participants receive

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

  • RabeprazoleDrug

    Rabeprazole 20 mg tablet orally once daily before breakfast for 28 to 56 days.

  • LansoprazoleDrug

    Lansoprazole 30 mg capsule orally once daily before breakfast for 28 to 56 days.

Study groups in NCT01008696
Study groupRoleWhat they receive
RabeprazoleExperimentalRabeprazole 20 mg tablet orally once daily before breakfast for 28 to 56 days.
Receives: Drug: Rabeprazole
LansoprazoleActive comparatorLansoprazole 30 mg capsule orally once daily before breakfast for 28 to 56 days.
Receives: Drug: Lansoprazole

What is being measured

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

  1. Percentage of Participants Completely Cured of Reflux Esophagitis Evaluated by Endoscopy Based on CYP2C19

    Reflux esophagitis evaluated by endoscopy as per LA Classification graded as: A=1 or more mucosal breaks no longer than 5 millimeter (mm) that did not extend between tops of 2 mucosal folds, B=1 or more mucosal breaks more than 5 mm long that did not extend between tops of 2 mucosal folds, C=1 or more mucosal break continuous between the tops of 2 or more mucosal folds but involves less than 75 percent of circumference, D=1 or more mucosal break involving at least 75 percent of circumference. Participants that were not categorized in any of the above mentioned grades (A to D) were considered as cured of reflux esophagitis. Participants were classified as CYP2C19 homozygous extensive, heterozygous extensive and poor metabolizers.

    Measured: Day 57

Secondary outcomes (2)
  1. Change From Baseline in Symptoms of Reflux Esophagitis Evaluated by the Symptom Assessment Questionnaire

    Gastroesophageal reflux disease and abdominal GI-related symptoms (heartburn, regurgitation, globus sensation, chronic cough, epigastric pain, non cardiac chest pain, hoarseness, dysphagia, abdominal distension, bloating, post-prandial discomfort, early satiety, nausea, vomiting, belching) experienced by participants were assessed and graded into 4 categories: 0 (Nothing)=No symptom, 1 (Mild)=A little but not uncomfortable, 2 (Moderate)=Present but interfering daily life activities a little, 3 (Severe)=Very uncomfortable, interfering daily life activities or sleeping.

    Measured: Baseline and Day 57

  2. Overall Assessment of Study Medication by Investigator

    Investigator's overall assessment of study medication based on the global symptom assessment was measured. The assessment was categorized as: 2=very good, 1=good, 0=as usual, -1=bad and -2=very bad.

    Measured: Day 57

Timeline

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

  1. First posted6 Nov 2009 (estimated)
  2. Study startMay 2007
  3. Primary completionAug 2008
  4. Study completionAug 2008

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
217 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01008696
Sponsor's protocol ID
CR013831
Other IDs
RAB-KOR-4023
Status last verified
Jul 2013
First submitted
5 Nov 2009
Last updated
13 Aug 2013
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Rabeprazole and Lansoprazole in people with Reflux Esophagitis, run by Janssen Korea, Ltd., Korea.

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 4 inclusion and 5 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 13 Aug 2013. Status can change between updates, so confirm with the study contact before making plans.

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?

Yes. Results are posted in the registry (first posted 13 Aug 2013). 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?

Percentage of Participants Completely Cured of Reflux Esophagitis Evaluated by Endoscopy Based on CYP2C19 (time frame: Day 57). 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 13 Aug 2013.

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