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Effects of Omacor and Aspirin on Platelet Function

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00688961
Recruitment Status : Completed
First Posted : June 3, 2008
Last Update Posted : June 3, 2008
Information provided by:
Sanford Research

Brief Summary:
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 or disease Intervention/treatment Phase
Healthy Drug: Aspirin Drug: omega-3 acid ethyl esters Early Phase 1

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 10 participants
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
Study Start Date : June 2007
Actual Primary Completion Date : August 2007
Actual Study Completion Date : August 2007

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
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

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

Information from the National Library of Medicine

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, Learn About Clinical Studies.

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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.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00688961

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United States, South Dakota
Sanford Research/USD
Sioux Falls, South Dakota, United States, 57105
Sponsors and Collaborators
Sanford Research
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Responsible Party: William S. Harris, Sanford Research/USD Identifier: NCT00688961    
Other Study ID Numbers: WSH-001
First Posted: June 3, 2008    Key Record Dates
Last Update Posted: June 3, 2008
Last Verified: May 2008
Keywords provided by Sanford Research:
omega-3 fatty acids
platelet aggregation
Healthy volunteers; no disease
Additional relevant MeSH terms:
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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