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Effects of Omacor and Aspirin on Platelet Function

This study has been completed.
Information provided by:
Sanford Research Identifier:
First received: May 30, 2008
Last updated: June 2, 2008
Last verified: May 2008
Omacor (now Lovaza) is a pharmaceutical omega-3 fatty acid product. Omega-3 fatty acids can affect blood clotting by altering the function of the blood platelets. Aspirin can do the same. The purpose of this study is to determine the individual and combined effects of these two agents on platelet function using a whole blood method.

Condition Intervention Phase
Healthy Drug: Aspirin Drug: omega-3 acid ethyl esters Early Phase 1

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Factorial Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Pilot Study of the Effects of Omacor (Alone and With Aspirin) on Platelet Function in Healthy Subjects

Resource links provided by NLM:

Further study details as provided by Sanford Research:

Primary Outcome Measures:
  • Whole blood aggregometry in response to 4 agonists [ Time Frame: Day 1, 2, 29, and 30 ]

Enrollment: 10
Study Start Date: June 2007
Study Completion Date: August 2007
Primary Completion Date: August 2007 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: 1
Experimental: 2
Aspirin (1 day after a single, 625 mg dose)
Drug: Aspirin
generic aspirin
Experimental: 3
Drug: omega-3 acid ethyl esters
4, 1 g capsules q.d.
Other Names:
  • Omacor
  • Lovaza
Experimental: 4
Omacor plus aspirin
Drug: Aspirin
generic aspirin
Drug: omega-3 acid ethyl esters
4, 1 g capsules q.d.
Other Names:
  • Omacor
  • Lovaza

  Show Detailed Description


Ages Eligible for Study:   21 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Subjects may be male or female and between the ages of 21 and 60,
  • Non-smokers,
  • Taking no medications, vitamin pills, nutritional supplements or herbal preparations.

Exclusion Criteria:

  • Subjects may not have a history of allergic reactions to aspirin, fish or fish oils.
  • Birth control pills are not allowed.
  • Subject cannot have an allergy to aspirin or to non-steroidal anti-inflammatory drug (NSAID) such as ibuprofen (Motrin, Advil, others), naproxen (Aleve, Naprosyn, Anaprox, others), indomethacin (Indocin), or ketoprofen (Orudis KT, Orudis, Oruvail), nabumetone (Relafen), oxaprozin (Daypro), or tartrazine.
  • Drinking more than three alcoholic beverages a day
  • Having any of the following conditions:

    • an ulcer or bleeding in the stomach,
    • liver or kidney disease,
    • bleeding or blood clotting disorder (e.g., hemophilia),
    • congestive heart failure,
    • fluid retention,
    • heart disease,
    • high blood pressure,
    • gout,
    • asthma,
    • arthritis, or
    • nasal polyps.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00688961

United States, South Dakota
Sanford Research/USD
Sioux Falls, South Dakota, United States, 57105
Sponsors and Collaborators
Sanford Research
  More Information

Responsible Party: William S. Harris, Sanford Research/USD Identifier: NCT00688961     History of Changes
Other Study ID Numbers: WSH-001
Study First Received: May 30, 2008
Last Updated: June 2, 2008

Keywords provided by Sanford Research:
omega-3 fatty acids
platelet aggregation
Healthy volunteers; no disease

Additional relevant MeSH terms:
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Fibrinolytic Agents
Fibrin Modulating Agents
Molecular Mechanisms of Pharmacological Action
Platelet Aggregation Inhibitors
Cyclooxygenase Inhibitors
Enzyme Inhibitors
Antipyretics processed this record on September 19, 2017