Impact of a High-fat Meal on Assessment of Clopidogrel-induced Platelet Inhibition in Healthy Subjects

This study has been completed.
Information provided by (Responsible Party):
University of Nebraska Identifier:
First received: February 22, 2011
Last updated: June 13, 2012
Last verified: June 2012
The purpose of this study is to determine whether a high-fat meal affects the ability of platelet function tests to measure platelet inhibition by clopidogrel.

Condition Intervention
Other: high fat meal

Study Type: Interventional
Study Design: Endpoint Classification: Pharmacodynamics Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Basic Science
Official Title: Impact of a High-fat Meal on Assessment of Clopidogrel-induced Platelet Inhibition in Healthy Subjects

Resource links provided by NLM:

Further study details as provided by University of Nebraska:

Primary Outcome Measures:
  • Platelet inhibition [ Time Frame: 3 time points over 6 hours ] [ Designated as safety issue: No ]
    platelet inhibition before versus after a high-fat meal (measured by light transmission aggregometry, whole blood aggregometry, flow cytometry, and VerifyNow assay)

Enrollment: 12
Study Start Date: February 2011
Study Completion Date: March 2012
Primary Completion Date: March 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
clopidogrel 600 mg loading dose Other: high fat meal
Clopidogrel 600 mg loading dose at 8 am and high-fat meal at 12 pm

Detailed Description:
The purpose of this study is to determine the influence of a high-fat meal on assessment of clopidogrel-induced platelet inhibition in healthy people using platelet function assays. Twelve healthy adult subjects will be recruited to take part in this research study. After consent is obtained, subjects will be asked to present to the clinical research center after a 12 hour fast. A baseline blood sample will be drawn at 8 am, and subjects will then be administered a 600 mg dose of clopidogrel. At 12 noon, another blood sample will be drawn to evaluate the extent of maximum platelet inhibition in the fasting state. Subjects will then be provided a standardized high-fat meal with an additional blood sample at 2 pm to evaluate the impact of the high-fat on platelet function assessment.

Ages Eligible for Study:   19 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • 19 years of age or older
  • healthy subjects
  • deny taking medications that affect platelet function for at least 7 days prior to test

Exclusion Criteria:

  • history of cardiovascular disease
  • any risk factors for cardiovascular disease
  • surgery in last 3 months
  • history of anemia/thrombocytopenia
  • pregnancy
  Contacts and Locations
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Please refer to this study by its identifier: NCT01307657

United States, Nebraska
University of Nebraska Medical Center
Omaha, Nebraska, United States, 68198
Sponsors and Collaborators
University of Nebraska
  More Information

Responsible Party: University of Nebraska Identifier: NCT01307657     History of Changes
Other Study ID Numbers: 568-10-FB 
Study First Received: February 22, 2011
Last Updated: June 13, 2012
Health Authority: United States: Institutional Review Board

Keywords provided by University of Nebraska:
platelet function test
Platelet function tests

Additional relevant MeSH terms:
Molecular Mechanisms of Pharmacological Action
Neurotransmitter Agents
Physiological Effects of Drugs
Platelet Aggregation Inhibitors
Purinergic Agents
Purinergic Antagonists
Purinergic P2 Receptor Antagonists
Purinergic P2Y Receptor Antagonists processed this record on May 23, 2016