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HypertriglyceridemiaOMEGANCT00504309

Vascular and Lipid Effects of Omega-3 Fatty Acids in People With Moderately Elevated Triglycerides

A study testing 4/day of 4g P-OM3 capsules and 4/day of 1g P-OM3 capsules in people with Hypertriglyceridemia, run by Penn State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the cardiovascular and lipid effects of two doses of an omega-3 fatty acid concentrate in a group of people who normally are not treated for high lipids. Read more about this study

Who is it for?
Ages 21 to 65 years
Conditions the study is for
Hypertriglyceridemia
What is being tested?
4/day of 4g P-OM3 capsules and 4/day of 1g P-OM3 capsules
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
28 participants
Where
1 siteUnited States
Study dates
Jul 2007to Jan 2009
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • triglycerides 150-500 mg/dL
  • age 21-65 years
  • generally healthy
  • body mass index (BMI) 20-39 kg/m2

Who cannot join

  • smoking
  • premenopausal (if female)
  • use of hormone replacement or oral contraceptives
  • use of lipid lowering or blood pressure medication
  • hypertension (blood pressure > 150/95 mm Hg)
  • peripheral vascular disease
Show all 12Show fewer
  • heart disease, diabetes, or stroke
  • inflammatory disease (e.g. rheumatoid arthritis or Crohn's)
  • elevated liver enzymes
  • high intake of omega-3 containing foods
  • allergy to adhesive or latex
  • use of aspirin, anticoagulants, or SSRI

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Penn State University General Clinical Research Center

    University Park, Pennsylvania, 16802

Other trials in United States

About this study

Official title: Omacor: Measures of Endothelial Function and triGlyceride Alteration

The purpose of this study is to evaluate the cardiovascular and lipid effects of two doses of an omega-3 fatty acid concentrate in a group of people who normally are not treated for high lipids.

Being tested
4/day of 4g P-OM3 capsules, 4/day of 1g P-OM3 capsules, Corn Oil Placebo, 4 capsules/day for 8 weeks
Keywords
triglycerides, hypertriglyceridemia, omega-3, n-3, eicosapentaenoic acid, EPA, docosahexaenoic acid, DHA, flow mediated dilation, fish, Moderate hypertriglyceridemia
Medical subject headings
Hypertriglyceridemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 4/day of 4g P-OM3 capsulesDrug

    Also called OM3AEE, Lovaza, Fish oil

    4/day of 4g P-OM3 capsules for 8 weeks

  • 4/day of 1g P-OM3 capsulesDrug

    Also called OM3AEE, Lovaza, Fish oil

    4/day of 1g P-OM3 capsules for 8 weeks

  • Corn Oil Placebo, 4 capsules/day for 8 weeksDrug

    Also called Corn oil

    4 capsules per day of corn oil placebo for 8 weeks

Study groups in NCT00504309
Study groupRoleWhat they receive
4g P-OM3, then 1g P-OM3, then PlaceboExperimental4 g/day Dose Prescription Omega-3 acid ethyl esters (P-OM3)capsules(4) for first intervention (8 weeks), followed by 1g/day P-OM3 capsules(4) for 2nd intervention (8 weeks), followed by Placebo corn oil capsules, 4/day, for the 3rd intervention (8 weeks).
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks
1g P-OM3, then 4g P-OM3, then PlaceboExperimental1g capsules for 8-wks, followed by 6-wk washout. 4g capsules for 8 wks,followed by 6-wk washout. Placebo capsules for 8-wks.
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks
Placebo, then 4g P-OM3, then 1g P-OM3ExperimentalCorn Oil placebo capsules for 8-wks, followed by 6-wk washout. 4g P-OM3 capsules for 8-wks, followed by 6-wk washout. 1g P-OM3 for 8-wks.
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks
4g P-OM3, then Placebo, then 1g P-OM3Experimental4g capsules for 8-wks, followed by 6-wk washout. Placebo capsules for 8-wks, followed by 6-wk washout. 1g capsules for 8 wks.
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks
1g P-OM3, then Placebo, then 4g P-OM3Experimental1g capsules for 8-wks, followed by 6-wk washout. Placebo capsules for 8-wks, followed by 6-wk washout. 4g capsules for 8 wks.
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks
Placebo, then 1g P-OM3, then 4g P-OM3ExperimentalCorn oil placebo capsules for 8-wks, followed by 6-wk washout.1g capsules for 8-wks, followed by 6-wk washout. 4g capsules for 8 wks.
Receives: Drug: 4/day of 4g P-OM3 capsules; Drug: 4/day of 1g P-OM3 capsules; Drug: Corn Oil Placebo, 4 capsules/day for 8 weeks

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Lipid Profile

    Plasma/serum samples were analyzed at baseline and at the end of each 8-week treatment period to evaluate the effect of P-OM3 dose on triglycerides, HDL-C, LDL-C, and total cholesterol.

    Measured: 8 weeks

  2. Flow-mediated Dilation (FMD)

    Effect of P-OM3 dose on FMD, which is measured as percent change in brachial artery diameter at peak dilation vs. baseline following a 5-minute occlusion period.

    Measured: 8 weeks

  3. Blood Pressure

    Effect of P-OM3 dose on blood pressure

    Measured: 8 weeks

  4. Heart Rate

    Effect of P-OM3 dose on heart rate

    Measured: 8 weeks

Secondary outcomes (7)
  1. Erythrocyte Fatty Acids

    Effect of P-OM3 dose on the percent concentration of select omega-3 fatty acids in red blood cells

    Measured: 8 weeks

  2. Cytokine Inflammatory Markers

    Effect of P-OM3 dose on concentrations of circulating inflammatory markers in plasma

    Measured: 8 weeks

  3. Fasting Glucose

    Effect of P-OM3 dose on fasting glucose

    Measured: 8 weeks

  4. Psychosocial Profile Questionnaires

    Effect of P-OM3 dose on psychosocial questionnaires:

    Perceived Stress Scale (PSS)

    • 14 questions, scored 0-4 based on how often the subject felt certain emotions
    • Scores: 0 to 40; higher scores indicate higher perceived stress

    Spielberger State Anxiety Inventory

    • Levels of state anxiety (situational) and trait anxiety; 40 items scored by a Likert scale
    • Scores: 20 to 80; higher scores indicate higher levels of anxiety

    Positive and Negative Affect Scales (PANAS)

    • Two 10-item scales; each item is rated on a Likert scale of 1 (not at all) to 5 (very much).
    • Scores: 10 to 50, with higher scores representing higher levels of positive or negative affect

    Center for Epidemiologic Studies Depression (CES-D) Scale

    • 20 questions about symptoms of depression in the past week
    • Scores: 0 to 60; higher scores indicate more symptomology. Score of 16 or higher indicates a risk for depression and should be followed by further evaluation by a qualified health professional

    Measured: 8 weeks

  5. C-reactive Protein (CRP)

    Effect of P-OM3 dose on the plasma concentration of the inflammatory marker CRP

    Measured: 8 weeks

  6. Fasting Insulin

    Effect of P-OM3 dose on fasting insulin

    Measured: 8 weeks

  7. Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) and Quantitative Insulin Sensitivity Check Index (QUICKI)

    Effect of P-OM3 dose on the homeostatic model assessment of insulin resistance (HOMA-IR) and the quantitative insulin sensitivity check index (QUICKI).

    HOMA-IR calculates an index of insulin resistance and is calculated as follows: HOMA-IR = (glucose mg/dL * insulin mU/L) / 405.

    QUICKI is calculated as follows: QUICKI = 1 / (log(fasting insulin µU/mL) + log(fasting glucose mg/dL)).

    Measured: 8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Jul 2007 (estimated)
  2. Study startJul 2007
  3. Primary completionJan 2009
  4. Study completionJan 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00504309
Sponsor's protocol ID
G214
Acronym
OMEGA
Status last verified
Feb 2018
First submitted
19 Jul 2007
Last updated
13 Mar 2018
Data monitoring committee
No

Publications

  • Sauder KA, Skulas-Ray AC, Campbell TS, Johnson JA, Kris-Etherton PM, West SG. Effects of omega-3 fatty acid supplementation on heart rate variability at rest and during acute stress in adults with moderate hypertriglyceridemia. Psychosom Med. 2013 May;75(4):382-9. doi: 10.1097/PSY.0b013e318290a107. Epub 2013 Apr 16.

    PubMed 23592752
  • Skulas-Ray AC, Kris-Etherton PM, Harris WS, West SG. Effects of marine-derived omega-3 fatty acids on systemic hemodynamics at rest and during stress: a dose-response study. Ann Behav Med. 2012 Dec;44(3):301-8. doi: 10.1007/s12160-012-9393-2.

    PubMed 22865498
  • Skulas-Ray AC, Kris-Etherton PM, Harris WS, Vanden Heuvel JP, Wagner PR, West SG. Dose-response effects of omega-3 fatty acids on triglycerides, inflammation, and endothelial function in healthy persons with moderate hypertriglyceridemia. Am J Clin Nutr. 2011 Feb;93(2):243-52. doi: 10.3945/ajcn.110.003871. Epub 2010 Dec 15.

    PubMed 21159789

Questions about this trial

What is this clinical trial studying?

A study testing 4/day of 4g P-OM3 capsules and 4/day of 1g P-OM3 capsules in people with Hypertriglyceridemia, run by Penn State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Mar 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Mar 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Lipid Profile (time frame: 8 weeks). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00504309, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2018.

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