Bioequivalence Study of Raperazole 20mg DR Tabs and PARIET® 20 mg DR Tabs Under Fed Conditions

Comparative Randomized, Single Dose, Two-way Crossover Open-label Study to Determine the Bioequivalence of Rabeprazole From Raperazole 20mg DR Tabs (GSK, Egypt) and PARIET 20 mg DR Tabs (JANSSEN, EGYPT) After a Single Oral Dose Administration of Each to Healthy Adults Under Fed Conditions

This is an open-label, randomized, single dose, two-sequence, two-periods crossover study, separated by 7 days washout interval from the first Study Drug Administration. This study is conducted to determine the bioequivalence of Rabeprazole from IDIAZOLE 20mg Delayed-Release (DR) tablets (tabs) and PARIET 20 mg DR tabs after a single oral dose administration of each to healthy adults fed under conditions.

In Period 1, subjects will be randomized to either Idiazole 20mg DR tabs or PARIET 20 mg DR tabs. Following a washout of at least 7 days, subjects will be crossed over in Period 2 to receive the treatment that they did not receive in Period 1.

PARIET is a registered trademark of EISAI Co. Limited.

Study Overview

• Status: Completed
• Conditions: Gastrointestinal Diseases
• Intervention / Treatment: Drug: IDIAZOLE 20mg DR tabs; Drug: PARIET 20 mg DR tabs

• Study Type: Interventional
• Enrollment (Actual): 70
• Phase: Phase 4

Contacts and Locations

Study Locations

• Egypt
  • Cairo, Egypt
    • GSK Investigational Site

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years to 53 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Healthy male or female, age 18 to 55 years, inclusive.
• Body weight within 10 percent of normal range according to the accepted normal values for body mass index (BMI).
• Medical demographics without evidence of clinically significant deviation from normal medical condition.
• Results of clinical laboratory test are within the normal range or with a deviation that is not considered clinically significant by principal investigator.
• Subject does not have allergy to the drugs under investigation.

Exclusion Criteria:

• Subjects with known allergy to the products tested.
• Subjects whose values of BMI were outside the accepted normal ranges.
• Female subjects who were pregnant, nursing or taking birth control pills.
• Medical demographics with evidence of clinically significant deviation from normal medical condition.
• Results of laboratory tests which are clinically significant.
• Acute infection within one week preceding first study drug administration.
• History of drug or alcohol abuse.
• Subject does not agree not to take any prescription or non-prescription drugs within two weeks before first study drug administration and until the end of the study.
• Subject is on a special diet (for example subject is vegetarian).
• Subject does not agree not to consume any beverages or foods containing methyl-xanthenes e.g. caffeine (coffee, tea, cola, chocolate etc.) 48 hours prior to the study administration of either study period until donating the last sample in each respective period.
• Subject does not agree not to consume any beverages or foods containing grapefruit 7 days prior to first study drug administration until the end of the study.
• Subject has a history of severe diseases which have direct impact on the study.
• Participation in a bioequivalence study or in a clinical study within the last 6 weeks before first study drug administration.
• Subject intends to be hospitalized within 6 weeks after first study drug administration.
• Subjects who, through completion of this study, would have donated more than 500 milliliter (mL) of blood in 7 days, or 750 mL of blood in 30 days, 1000 mL in 90 days, 1250 mL in 120 days, 1500 ml in 180 days, 2000 mL in 270 days, 2500 mL of blood in 1 year.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Other
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group A-Idiazole then Pariet; Subjects will receive a single oral dose of IDIAZOLE 20mg DR tabs under fed condition in treatment period 1 followed by 7 days washout interval from the first study drug administration. After the washout interval the subjects will receive a single dose of PARIET 20 mg DR tabs under fed condition in treatment period 2.	Drug: IDIAZOLE 20mg DR tabs; IDIAZOLE 20mg DR tabs is a delayed-release, enteric-coated tablets containing 20 mg of rabeprazole sodium.; Drug: PARIET 20 mg DR tabs; PARIET 20 mg DR tabs is a delayed-release, enteric-coated tablets containing 20 mg rabeprazole sodium.
Experimental: Group B-Pariet then Idiazole; Subjects will receive a single oral dose of PARIET 20 mg DR tabs under fed condition in treatment period 1 followed by 7 days washout interval from the first study drug administration. After the washout interval the subjects will receive a single dose of Idiazole 20mg DR tabs under fed condition in treatment period 2.	Drug: IDIAZOLE 20mg DR tabs; IDIAZOLE 20mg DR tabs is a delayed-release, enteric-coated tablets containing 20 mg of rabeprazole sodium.; Drug: PARIET 20 mg DR tabs; PARIET 20 mg DR tabs is a delayed-release, enteric-coated tablets containing 20 mg rabeprazole sodium.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Maximal Measured Plasma Concentration (Cmax) of Rabeprazole	Blood samples were collected for pharmacokinetic analyses in each period at specified time points. Pharmacokinetic parameters of rabeprazole were estimated using standard non-compartmental methods. The Cmax was computed directly from measured data.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2
Area Under the Plasma Concentration-time Curve From Time Zero to the Last Measurable Concentration (AUC [0-t]) of Rabeprazole	Blood samples were collected for pharmacokinetic analyses in each period at specified time points. Pharmacokinetic parameters of rabeprazole were estimated using standard non-compartmental methods. AUC (0-t) was calculated from measured data points from time of administration to time of last quantifiable concentration (Clast) by the linear trapezoidal rule.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2
Mean Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC [0 to Infinity]) of Rabeprazole	Blood samples were collected for pharmacokinetic analyses in each period at specified time points. Pharmacokinetic parameters of rabeprazole were estimated using standard non-compartmental methods.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Mean Time to the Maximum Plasma Concentration (Tmax) of Rabeprazole	Blood samples were collected for pharmacokinetic analysis in each period at specified time points. Pharmacokinetic parameters of Rabeprazole were estimated using standard non-compartmental methods. Tmax was computed directly from the measured data.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2
Mean Apparent First-order Elimination or Terminal Rate Constant (Ke) of Rabeprazole	Blood samples were collected for pharmacokinetic analysis in each period at specified time points. Pharmacokinetic parameters of Rabeprazole were estimated using standard non-compartmental methods. Ke was derived from a semi-log plot of the plasma concentration versus time curve. The parameter was calculated by linear least-squares regression analysis using the last three (or more) non-zero plasma concentrations.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2
Mean Terminal Half Life (t1/2) of Rabeprazole	Half life is the period of time required for the concentration or amount of drug in the body to be reduced by one-half. Blood samples were collected for pharmacokinetic analysis in each period at specified time points. Pharmacokinetic parameters of Rabeprazole were estimated using standard non-compartmental methods. t1/2 was calculated as: t1/2 = Ln(2) / (-b), where b was obtained as the slope of the linear regression of the Ln-transformed plasma concentrations versus time in the terminal period of the plasma curve.	Pre-dose and at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 9, 10, 12, 14 and 24 hours post-dose in period 1 and 2

Collaborators and Investigators

• Sponsor: GlaxoSmithKline

Publications and helpful links

Helpful Links

• Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.

Study record dates

Study Major Dates

• Study Start (Actual): March 22, 2014
• Primary Completion (Actual): March 30, 2014
• Study Completion (Actual): March 30, 2014

Study Registration Dates

• First Submitted: May 14, 2015
• First Submitted That Met QC Criteria: November 12, 2015
• First Posted (Estimate): November 16, 2015

Study Record Updates

• Last Update Posted (Actual): October 1, 2018
• Last Update Submitted That Met QC Criteria: August 31, 2018
• Last Verified: October 1, 2017

More Information

Terms related to this study

• Keywords: Bioequivalence; Rabeprazole; Fed condition; PARIET 20 mg; IDIAZOLE 20mg
• Additional Relevant MeSH Terms: Gastrointestinal Diseases; Digestive System Diseases; Molecular Mechanisms of Pharmacological Action; Enzyme Inhibitors; Gastrointestinal Agents; Anti-Ulcer Agents; Proton Pump Inhibitors; Rabeprazole
• Other Study ID Numbers: 201528

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Yes
• IPD Plan Description: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.

Study Data/Documents

1. Clinical Study Report
   Information identifier: 201528
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
2. Informed Consent Form
   Information identifier: 201528
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
3. Dataset Specification
   Information identifier: 201528
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register
4. Individual Participant Data Set
   Information identifier: 201528
   Information comments: For additional information about this study please refer to the GSK Clinical Study Register