Primary objective: * Assess the effects of clopidogrel (300 mg loading dose followed by 4 days 75 mg/day) on Adenosine diphosphate (ADP)-induced platelet aggregation when given either alone in the morning, or in association with omeprazole 80 mg/day in the evening at a 12-hours interval in healthy male and female subjects Secondary Objectives: * Compare the pharmacokinetic profiles of clopidogrel and its active metabolite when clopidogrel is given either alone alone in the morning, or in association with omeprazole in the evening at a 12-hours interval
The total study duration per subjects is 8-9 weeks broken down as follows: * Screening: 2 to 21 days before the first dosing * Period clopidogrel/placebo: 7 days including 5 days treatment * Period clopidogrel/placebo + omeprazole: 12 days including 10 days treatment * Washout between periods: at least 14 days period after last dosing respect to clopidogrel treatment * End of study: at 7 to 10 days after the last dosing
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
DOUBLE
Enrollment
72
Pharmaceutical form: tablet Route of administration: oral
Pharmaceutical form: matching tablet Route of administration: oral
Pharmaceutical form: delayed-release capsule Route of administration:oral
Sanofi-Aventis Administrative Office
Bridgewater, New Jersey, United States
Maximum platelet aggregation intensity (MAI) induced by Adenosine diphosphate (ADP) 5µM after 5 days treatment
Time frame: Day 5 of each period
Maximum platelet aggregation intensity (MAI) induced by ADP 20µM after 5 days treatment
Time frame: Day 5 of each period
Platelet Reactivity Index - Vasodilatator-stimulated phosphoprotein test (PRI - VASP) after 5 days treatment
Time frame: Day 5 of each period
Clopidogrel pharmacokinetic parameters (maximum plasma concentration (Cmax) and area under the plasma concentration curve (AUC0-24)) after 5 days treatment
Time frame: Up to 24 hours postdose on Day 5 for each period
Clopidogrel active metabolite pharmacokinetic parameters (Cmax and AUC0-24) after 5 days treatment
Time frame: Up to 24 hours postdose on Day 5 for each period
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