ClinicalTrials.gg
CompletedNCT03658473Updated Sep 5, 2018

Evaluation of Rebamipide and Rabeprazole Effect Associated or Not to Prevent Naproxen-induced Gastric Lesions

A Phase 3 interventional study of 550 mg naproxen + 300 mg rebamipide + 20 mg rabeprazole. and 550 mg naproxen + placebo + 20 mg rabeprazole in Gastric Lesion, sponsored by Galeno Desenvolvimento de Pesquisas Clínicas. Completed at 1 site in Brazil. Open to participants aged 20 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-09-05.

Sponsored by Galeno Desenvolvimento de Pesquisas Clínicas · Phase 3, Interventional, and Prevention

From the registry’s dates

  • Registered 3 years 9 months after the study started (first participant enrolled Nov 2014, registered Sep 2018).
Phase
Phase 3
Study type
Interventional
Enrollment
32
Allocation
Randomized
Ages
20 Years to 55 Years
Sex
All
01

Study summary

This clinical trial evaluated the gastroprotection obtained by the use of rebamipide 300 mg (2x daily) and rabeprazole 20 mg/day (1x daily) associated or not in the prevention of gastric lesions induced by naproxen 1100 mg/day) for 7 days to healthy volunteers of both sexes. This trial also assessed drugs safety and tolerability, the prostaglandin levels (PGE2) in biopsy specimens before and after treatment of each group and the histopathological changes induced by the treatment of each group.

Read the detailed description

This phase III, single center, double-blind, randomised, multiple-dose trial was performed in a parallel-group design. The subjects were randomly assigned to one of the 4 possible treatments: treatment A - 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + 20 mg rabeprazole 1x daily over 7 days; treatment B - 550 mg naproxen 2x daily + placebo of rebamipide 2x daily + 20 mg rabeprazole 1x daily over 7 days; treatment C - 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + placebo of rabeprazole 1x daily over 7 days; and treatment D - 550 mg naproxen 2x daily + placebo of rebamipide 2x daily + placebo of rabeprazole 1x daily over 7 days.

Upper digestive endoscopy was performed before the beginning of the therapies and 12 hours after the last administration (8th day of the study), with collection of the biological samples (biopsies) in the antrum region and 5 in the gastric body at each examination. The samples were preserved in formalin solution and sent for histopathological examination.

The safety and tolerability was assessed by signs and symptoms, adverse events, laboratory tests, vital signs and electrocardiogram (ECG).

02

Conditions studied

  • Gastric Lesion

Keywords

  • gastroprotection
  • rebamipide
  • rabeprazole
  • naproxeno
03

In context

Lead sponsor

Galeno Desenvolvimento de Pesquisas Clínicas is the lead sponsor of 8 studies on the registry; none are open to participants now.

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

04

Who can participate

Ages eligible
20 Years to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Volunteers of both sexes aged 18 or over. Women could not be pregnant or breastfeeding
  • Body-mass index () ≥19.0 kg/m² and ≤ 28.75 kg/m²
  • Good state of health
  • Non-smoker or ex-smoker for at least 6 month
  • Written , after having been informed about benefits and potential risks of the clinical trial, as well as details of the insurance taken out to cover the subjects participating in the clinical trial

Exclusion criteria

Exclusion Criteria:

  • Existing cardiac, hepatic and/or haematological diseases or pathological findings, which might interfere with the safety or tolerability and/or pharmacokinetics and/or pharmacodynamics of the active ingredient
  • History of relevant central nervous system (CNS) and/or psychiatric disorders and/or currently treated CNS and/or psychiatric disorders
  • Known allergic reactions to the active ingredients used or to constituents of the pharmaceutical preparations
  • Subjects with severe allergies or multiple drug allergies, unless it is judged as not relevant for the clinical trial by the investigator
  • Volunteer does not present the entire upper gastrointestinal tract mucosa, that is, hemorrhages, ulcers or apparent lesions at the first endoscopic examination.
  • The volunteer that has achlorhydria (intragastric pH greater than 6.5)
  • Occult blood in the faeces with positive result before the start of therapy
  • Electrocardiographic findings not recommended by the researcher for participation in the study
  • Deviations from the results of laboratory recruitment examinations considered by the researcher
  • Has a history of alcohol or drug abuse or expressive alcohol consumption (> 35g/day)
  • Participation in a clinical trial during the last 6 months prior to individual enrolment of the subject
  • Have used regular medication within 2 weeks prior to initiation of treatment or used any medication within one week prior to initiation of study treatment, with the exception of oral or cases where, based on half-life of the drug and/or active metabolites, complete elimination may be assumed
  • Subjects who are unable to understand the written and verbal instructions, in particular regarding the risks and inconveniences they will be exposed to during their participation in the clinical trial
Terms in these criteria, in plain language(4)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

BMI (body mass index)

Weight in kilograms divided by height in metres squared. Example: 70 kg and 1.75 m gives 70 ÷ (1.75 × 1.75) ≈ 22.9.

What counts as overweight or obesity differs between countries (some use lower cut-offs), so go by the range the study states.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Care provider)
Enrollment
32 participants (actual)

Study arms

  • Active comparator
    Treatment A

    Administration of 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + 20 mg rabeprazole 1x daily over 7 days.

    Drug: 550 mg naproxen + 300 mg rebamipide + 20 mg rabeprazole.

  • Active comparator
    Treatment B

    Administration of 550 mg naproxen 2x daily + 300 mg rebamipide placebo 2x daily + 20 mg rabeprazole 1x daily over 7 days.

    Drug: 550 mg naproxen + placebo + 20 mg rabeprazole

  • Active comparator
    Treatment C

    Administration of 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + 20 mg rabeprazole placebo 1x daily over 7 days.

    Drug: 550 mg naproxen + 300 mg rebamipide + placebo

  • Placebo comparator
    Treatment D

    Administration of 550 mg naproxen 2x daily + 300 mg rebamipide placebo 2x daily + 20 mg rabeprazole placebo 1x daily over 7 days.

    Drug: 550 mg naproxen + placebo + placebo

Interventions

  • Drug550 mg naproxen + 300 mg rebamipide + 20 mg rabeprazole.

    Oral administration of 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + 20 mg rabeprazole 1x daily over 7 days.

  • Drug550 mg naproxen + placebo + 20 mg rabeprazole

    Oral administration of 550 mg naproxen 2x daily + placebo of rebamipide 2x daily + 20 mg rabeprazole 1x daily over 7 days.

  • Drug550 mg naproxen + 300 mg rebamipide + placebo

    Oral administration of 550 mg naproxen 2x daily + 300 mg rebamipide 2x daily + placebo of rabeprazole 1x daily over 7 days.

  • Drug550 mg naproxen + placebo + placebo

    Oral administration of 550 mg naproxen 2x daily + placebo 2x daily + placebo of rabeprazole 1x daily over 7 days.

06

What researchers measure

Primary outcomes

  1. Evaluation of the number of gastric events (erosion of the gastric mucosa, gastritis, petechiae in the gastric mucosa and ulcer)

    Histopathological examination of biological samples (biopsies) in the antrum region and in the gastric body collected during the upper digestive endoscopy performed before the beginning of the therapies and 12 hours after the last administration (8th day of the study) to each subject.

    Time frame: 0-7 days after drugs administration

Secondary outcomes

  1. Measurement of prostaglandin levels (PGE2).

    Measurement of prostaglandin levels (PGE2) in biopsy specimens collected before and after treatment of each subject.

    Time frame: 0-7 days after drugs administration

  2. Number of adverse events per participant

    Number of adverse events in each treatment group, including clinically relevant alterations of vital signs and laboratory tests results.

    Time frame: 0-7 days after drugs administration

07

Study locations

1 site
  • Galeno Desenvolvimento de Pesquisas Clinicas Ltda.
    Campinas, SP 13087-010, Brazil
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Nov 2014 to primary completion in Nov 2014, 0 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 1, 2018
First posted
Sep 5, 2018
StartActual
Nov 12, 2014
Primary completionActual
Nov 27, 2014
CompletionActual
Feb 4, 2015
Last update
Sep 5, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 5, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03658473
Lead sponsor
Galeno Desenvolvimento de Pesquisas Clínicas
Collaborators
Biolab Sanus Farmaceutica
Responsible party
Gilberto De Nucci (Doctor, Galeno Desenvolvimento de Pesquisas Clínicas) — Principal investigator
First posted
Sep 5, 2018
Start date
Nov 12, 2014
Primary completion
Nov 27, 2014
Completion
Feb 4, 2015
Last update
Sep 5, 2018

Study contacts

Gilberto De Nucci, Doctor
principal investigator · Galeno Desenvolvimento de Pesquisas Clinicas Ltda

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 completed, as verified in Sep 2018. You cannot join it, but the record below documents what was studied.

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