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

Phase 4

Completed

• Conditions: Gastrointestinal Diseases
• Interventions: Drug: IDIAZOLE 20mg DR tabs; Drug: PARIET 20 mg DR tabs

• Registration Number: NCT02605395
• Lead Sponsor: GlaxoSmithKline

Brief Summary

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.

Detailed Description

Not available

Study Timeline

• Study Start: 2014-03-22
• Primary Completion: 2014-03-30
• Study Completion: 2014-03-30
• Study First Submitted: 2015-05-14
• Study First Submitted QC: 2015-11-12
• Study First Posted: 2015-11-16
• Results First Submitted: 2017-05-22
• Status Verified: 2017-10
• Results First Submitted QC: 2018-08-31
• Last Update Submitted: 2018-08-31
• Results First Posted: 2018-10-01
• Last Update Posted: 2018-10-01

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 70

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.

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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.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Group A-Idiazole then Pariet	IDIAZOLE 20mg DR tabs	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.
Group B-Pariet then Idiazole	IDIAZOLE 20mg DR tabs	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.
Group A-Idiazole then Pariet	PARIET 20 mg DR tabs	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.
Group B-Pariet then Idiazole	PARIET 20 mg DR tabs	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.

Primary Outcome Measures

Name	Time	Method
Mean Area Under the Plasma Concentration-time Curve From Time Zero to Infinity (AUC [0 to Infinity]) of Rabeprazole	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	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.
Area Under the Plasma Concentration-time Curve From Time Zero to the Last Measurable Concentration (AUC [0-t]) of Rabeprazole	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	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.
Maximal Measured Plasma Concentration (Cmax) of Rabeprazole	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	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.

Secondary Outcome Measures

Name	Time	Method
Mean Time to the Maximum Plasma Concentration (Tmax) of Rabeprazole	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	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.
Mean Apparent First-order Elimination or Terminal Rate Constant (Ke) of Rabeprazole	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	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.
Mean Terminal Half Life (t1/2) of Rabeprazole	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	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.

Trial Locations

Locations (1)

GSK Investigational Site; 🇪🇬 Cairo, Egypt