Status:

TERMINATED

Loss of Effect of Aspirin on Platelet Aggregation During Chronic Administration

Lead Sponsor:

Vanderbilt University

Conditions:

Platelet Aggregation

Eligibility:

MALE

18+ years

Phase:

PHASE4

Brief Summary

Aspirin has shown to be beneficial to some patients with certain diseases such as coronary artery disease or stroke. We are investigating how aspirin works on regulating platelets and thromboxane over...

Detailed Description

he purpose of the study is to better understand the mechanism for failure of daily aspirin administration to prevent cardiovascular events in some at risk individuals. We seek to describe the effect o...

Eligibility Criteria

Inclusion

  • Males
  • Age 18-40 years
  • Non-smokers

Exclusion

  • ASA/NSAID use previous 14 days.
  • Evidence of ASA/NSAID use within previous 14 days at baseline visit based on investigator interpretation of platelet aggregation and platelet secretion studies.
  • History of chronic NSAID use.
  • Currently taking NSAIDs, corticosteroids, or anticoagulants.
  • History of coronary artery disease, myocardial infarction, coronary artery bypass grafting, percutaneous angioplasty, diabetes mellitus or stroke.
  • History of gastric,duodenal, or esophageal ulcers or serious gastrointestinal bleed.
  • History of frequent headaches, pain syndrome, or other condition requiring frequent use of analgesics.
  • History of adverse reaction to ASA.
  • Initial platelet count \<100K/µl or \>500K/µl.
  • Initial hematocrit \<35% or \>50%.
  • Weight less than 110 pounds.

Key Trial Info

Start Date :

June 1 2004

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

February 1 2011

Estimated Enrollment :

51 Patients enrolled

Trial Details

Trial ID

NCT00748371

Start Date

June 1 2004

End Date

February 1 2011

Last Update

April 12 2017

Active Locations (1)

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Vanderbilt University

Nashville, Tennessee, United States, 37232-6602