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.
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
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.
- Conditions
- Hypertriglyceridemia
- 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 group | Role | What they receive |
|---|---|---|
| 4g P-OM3, then 1g P-OM3, then Placebo | Experimental | 4 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 Placebo | Experimental | 1g 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-OM3 | Experimental | Corn 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-OM3 | Experimental | 4g 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-OM3 | Experimental | 1g 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-OM3 | Experimental | Corn 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.
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
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
Blood Pressure
Effect of P-OM3 dose on blood pressure
Measured: 8 weeks
Heart Rate
Effect of P-OM3 dose on heart rate
Measured: 8 weeks
Secondary outcomes (7)
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
Cytokine Inflammatory Markers
Effect of P-OM3 dose on concentrations of circulating inflammatory markers in plasma
Measured: 8 weeks
Fasting Glucose
Effect of P-OM3 dose on fasting glucose
Measured: 8 weeks
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
C-reactive Protein (CRP)
Effect of P-OM3 dose on the plasma concentration of the inflammatory marker CRP
Measured: 8 weeks
Fasting Insulin
Effect of P-OM3 dose on fasting insulin
Measured: 8 weeks
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.
- First posted20 Jul 2007 (estimated)
- Study startJul 2007
- Primary completionJan 2009
- Study completionJan 2009
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for HypertriglyceridemiaStudies of the same condition, open and under way.
- More trials run by Penn State UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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)
Sponsor and investigators
- Lead sponsor
- Penn State University
- Sponsor type
- University, hospital or other
- Collaborators
- Reliant Pharmaceuticals
- Responsible party
- Principal investigator, Sheila G West, Penn State University
- Investigators
- Sheila G West, PhD, Principal investigator, Penn State UniversityPenny M Kris-Etherton, PhD, Principal investigator, Penn State UniversityAnn C Skulas-Ray, B.S., Principal investigator, Penn State University
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
- Results posted
- Yes, on ClinicalTrials.gov
- 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 23592752Skulas-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 22865498Skulas-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
Study at a glance
From the registry record, last updated by the sponsor on 13 Mar 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Omacor: Measures of Endothelial Function and triGlyceride Alteration
- ClinicalTrials.gov ID
- NCT00504309
- Acronym / sponsor ID
- OMEGA / G214
- Conditions
- Hypertriglyceridemia
- Keywords
- triglycerides, hypertriglyceridemia, omega-3, n-3, eicosapentaenoic acid, EPA, docosahexaenoic acid, DHA
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 28 participants (actual)
- Lead sponsor
- Penn State UniversityUniversity, hospital or other
- Collaborators
- Reliant Pharmaceuticals
- Study start
- Jul 2007
- Primary completion
- Jan 2009 (actual)
- Study completion
- Jan 2009 (actual)
- First posted
- 20 Jul 2007 (estimated)
- Results
- Posted 13 Mar 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 6
| Arm | Type | Receives |
|---|---|---|
| 4g P-OM3, then 1g P-OM3, then Placebo | Experimental | 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 weeks4 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). |
| 1g P-OM3, then 4g P-OM3, then Placebo | Experimental | 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 weeks1g capsules for 8-wks, followed by 6-wk washout. 4g capsules for 8 wks,followed by 6-wk washout. Placebo capsules for 8-wks. |
| Placebo, then 4g P-OM3, then 1g P-OM3 | Experimental | 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 weeksCorn 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. |
| 4g P-OM3, then Placebo, then 1g P-OM3 | Experimental | 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 weeks4g capsules for 8-wks, followed by 6-wk washout. Placebo capsules for 8-wks, followed by 6-wk washout. 1g capsules for 8 wks. |
| 1g P-OM3, then Placebo, then 4g P-OM3 | Experimental | 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 weeks1g capsules for 8-wks, followed by 6-wk washout. Placebo capsules for 8-wks, followed by 6-wk washout. 4g capsules for 8 wks. |
| Placebo, then 1g P-OM3, then 4g P-OM3 | Experimental | 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 weeksCorn 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. |
Who may qualify
- Ages
- 21 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- triglycerides 150-500 mg/dL
- age 21-65 years
- generally healthy
- body mass index (BMI) 20-39 kg/m2
Key exclusion criteria (12 listed)
- 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)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| 4/day of 4g P-OM3 capsulesAlso: OM3AEE, Lovaza, Fish oil4/day of 4g P-OM3 capsules for 8 weeks | Drug | 1g P-OM3, then 4g P-OM3, then Placebo, 1g P-OM3, then Placebo, then 4g P-OM3, 4g P-OM3, then 1g P-OM3, then Placebo, 4g P-OM3, then Placebo, then 1g P-OM3, Placebo, then 1g P-OM3, then 4g P-OM3, Placebo, then 4g P-OM3, then 1g P-OM3 |
| 4/day of 1g P-OM3 capsulesAlso: OM3AEE, Lovaza, Fish oil4/day of 1g P-OM3 capsules for 8 weeks | Drug | 1g P-OM3, then 4g P-OM3, then Placebo, 1g P-OM3, then Placebo, then 4g P-OM3, 4g P-OM3, then 1g P-OM3, then Placebo, 4g P-OM3, then Placebo, then 1g P-OM3, Placebo, then 1g P-OM3, then 4g P-OM3, Placebo, then 4g P-OM3, then 1g P-OM3 |
| Corn Oil Placebo, 4 capsules/day for 8 weeksAlso: Corn oil4 capsules per day of corn oil placebo for 8 weeks | Drug | 1g P-OM3, then 4g P-OM3, then Placebo, 1g P-OM3, then Placebo, then 4g P-OM3, 4g P-OM3, then 1g P-OM3, then Placebo, 4g P-OM3, then Placebo, then 1g P-OM3, Placebo, then 1g P-OM3, then 4g P-OM3, Placebo, then 4g P-OM3, then 1g P-OM3 |
Primary outcome
Lipid Profile
Time frame: 8 weeks
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.
Flow-mediated Dilation (FMD)
Time frame: 8 weeks
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.
Blood Pressure
Time frame: 8 weeks
Effect of P-OM3 dose on blood pressure
Heart Rate
Time frame: 8 weeks
Effect of P-OM3 dose on heart rate
7 secondary outcomes
Erythrocyte Fatty Acids
Time frame: 8 weeks
Cytokine Inflammatory Markers
Time frame: 8 weeks
Fasting Glucose
Time frame: 8 weeks
Psychosocial Profile Questionnaires
Time frame: 8 weeks
C-reactive Protein (CRP)
Time frame: 8 weeks
Fasting Insulin
Time frame: 8 weeks
Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) and Quantitative Insulin Sensitivity Check Index (QUICKI)
Time frame: 8 weeks
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Mar 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Derived from this study: PubMed 23592752Sauder 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.
- Derived from this study: PubMed 22865498Skulas-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.
- Derived from this study: PubMed 21159789Skulas-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.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Sheila G West, PhD principal investigator
Penn State University
Penny M Kris-Etherton, PhD principal investigator
Penn State University
Ann C Skulas-Ray, B.S. principal investigator
Penn State University
1 site in 1 country: see every site and its status.
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.