A Study to Evaluate Platlet Aggregation of Clopidogrel, EC Aspirin 81 mg, EC Omeprazole 40 mg Compare to PA32540

NCT ID: NCT01557335

Last Updated: 2012-03-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-11-30

Study Completion Date

2011-02-28

Brief Summary

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This study is designed to provide data on platelet aggregation of PA32540 plus clopidogrel dosed separately compared to EC aspirin 81 mg plus EC omeprazole 40 mg plus clopidogrel dosed concomitantly.

Detailed Description

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PA32540 is proposed for the secondary prevention of cardio- and cerebrovascular events in patients at risk for developing aspirin-associated gastric ulcers.

Aspirin 81 mg taken concomitantly with clopidogrel 75 mg as maintenance doses is standard of care in some patients with cardiovascular disease. The combination of aspirin and clopidogrel, however, significantly increases the risk for bleeding events. To mitigate upper gastrointestinal bleeding events, these patients would require the use of a proton pump inhibitor. For that reason, the reference arm in this study uses Prilosec® 40 mg as a comparator - the same proton pump inhibitor at the same dose level.

The primary objective is to evaluate adenosine diphosphate (ADP)-induced platelet aggregation following administration of clopidogrel, EC aspirin 81 mg and EC omeprazole 40 mg, all dosed concomitantly, and PA32540 and clopidogrel dosed separately

Conditions

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Platelet Aggregation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Clopidogrel (Plavix®) and PA32540

PA32540 and Clopidogrel (Plavix®) tablet, 10 hours post PA32540

Group Type EXPERIMENTAL

Plavix® and PA32540

Intervention Type DRUG

one Plavix® 300 mg loading dose in the PM of Day 1 one Plavix® 75 mg maintenance dose in the PM of Days 2-7 PA32540(delayed release aspirin 325 mg plus immediate release omeprazole 40 mg)

EC aspirin, EC omeprazole, Clopidogrel

Group Type ACTIVE_COMPARATOR

EC aspirin (Bayer®) ,EC omeprazole (Prilosec®) , Clopidogrel (Plavix®)

Intervention Type DRUG

One EC aspirin (Bayer®) 81 mg tablet plus one EC omeprazole (Prilosec®) 40 mg capsule plus one Clopidogrel (Plavix®) tablet of 300 mg (loading dose) all One EC aspirin (Bayer®) 81 mg tablet plus one EC omeprazole (Prilosec®) 40 mg capsule plus one Clopidogrel (Plavix®) tablet of 75 mg (maintenance dose) all taken concomitantly in the AM of Days 2-7

Interventions

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Plavix® and PA32540

one Plavix® 300 mg loading dose in the PM of Day 1 one Plavix® 75 mg maintenance dose in the PM of Days 2-7 PA32540(delayed release aspirin 325 mg plus immediate release omeprazole 40 mg)

Intervention Type DRUG

EC aspirin (Bayer®) ,EC omeprazole (Prilosec®) , Clopidogrel (Plavix®)

One EC aspirin (Bayer®) 81 mg tablet plus one EC omeprazole (Prilosec®) 40 mg capsule plus one Clopidogrel (Plavix®) tablet of 300 mg (loading dose) all One EC aspirin (Bayer®) 81 mg tablet plus one EC omeprazole (Prilosec®) 40 mg capsule plus one Clopidogrel (Plavix®) tablet of 75 mg (maintenance dose) all taken concomitantly in the AM of Days 2-7

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male or non-lactating, non-pregnant female subjects who are 40 years or older at the time of initial dosing

--Physical status within normal limits for age and consistent with observations at Screening
* Able to understand and comply with study procedures required and able and willing to provide written informed consent prior to any study procedures being performed

Exclusion Criteria

* History of hypersensitivity, allergy or intolerance to omeprazole or other proton-pump inhibitors (PPIs)
* History of hypersensitivity, allergy or intolerance to aspirin or any NSAID and/or a history of NSAID-induced symptoms of asthma, rhinitis, and/or nasal polyps
* History of hypersensitivity or intolerance to clopidogrel
* History of hepatitis B or C, a positive test for hepatitis B surface antigen, hepatitis C antibody, a history of human immunodeficiency virus (HIV) infection or demonstration of HIV antibodies
* History of malignancy, treated or untreated, within the past five years, with the exception of successfully treated basal cell or squamous cell carcinoma of -Evidence of uncontrolled, or unstable cardio- or cerebrovascular disorder, which in the Investigator's opinion, would endanger a subject if he/she were to participate in the study
* Presence of an uncontrolled acute, or a chronic medical illness, e.g., GI disorder, diabetes, hypertension, thyroid disorder, bleeding disorder, infection, which in the Investigator's opinion would endanger a subject if he/she were to participate in the study or interfere with the objective of this study
* Schizophrenia or bipolar disorder
* GI disorder or surgery leading to impaired drug absorption
* \< 70% platelet aggregation at Screening
* Donation of blood or plasma within 4 weeks of the study
* PPI use or any enzyme inducing/inhibiting agents within 4 weeks prior to dosing
* Taking any antiplatelet drug within 2 weeks of the screening visit or during the study, or more than two 325 mg doses of aspirin or more than 2 doses of any other NSAIDs within 14 days prior to the screening visit
Minimum Eligible Age

40 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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POZEN

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Lisa Zimmerman

Role: STUDY_DIRECTOR

POZEN

Locations

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Sinai Center for Thrombosis Research

Baltimore, Maryland, United States

Site Status

Countries

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United States

References

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Gurbel PA, Bliden KP, Fort JG, Jeong YH, Shuldiner A, Chai S, Gesheff T, Antonino M, Gesheff M, Zhang Y, Tantry US. Spaced administration of PA32540 and clopidogrel results in greater platelet inhibition than synchronous administration of enteric-coated aspirin and enteric-coated omeprazole and clopidogrel. Am Heart J. 2013 Feb;165(2):176-82. doi: 10.1016/j.ahj.2012.07.032. Epub 2012 Dec 4.

Reference Type DERIVED
PMID: 23351820 (View on PubMed)

Other Identifiers

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PA32540-111

Identifier Type: -

Identifier Source: org_study_id

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