NCT02514070

Brief Summary

Background: \- Metabolism is what the body does to turn food into energy. Omega-3 fatty acids are substances found in foods such as cold-water fish and shellfish that are essential for good health. Researchers want to see the effect of two fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on metabolism. They may be beneficial to cardiovascular health. Objective: \- To understand the effects of EPA and DHA on metabolism. Eligibility: \- Healthy people ages 18 years or above with plasma triglyceride (a type of fat in the blood) levels of 100 mg/dL or higher Design:

  • The study will last 20 to 24 weeks.
  • Participants will have 4 visits to the NIH Clinical Center. These will include:
  • Medical history
  • Physical Fasting blood and urine tests
  • CAVI tests: blood pressure is taken in the arms and legs, and the heart is monitored.
  • Participants will take an EPA/DHA dietary supplement. They will take 4 gel capsules, 3 times a day, for 6 or 7 weeks. Then they will not take the capsules for 8 to 10 weeks (a wash-out period). They will then take the capsules again for 6 or 7 weeks.
  • Participants will keep a food journal.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
44

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Oct 2015

Typical duration for phase_2

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 31, 2015

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 3, 2015

Completed
3 months until next milestone

Study Start

First participant enrolled

October 30, 2015

Completed
3.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 23, 2019

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 23, 2019

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

December 3, 2020

Completed
Last Updated

July 15, 2021

Status Verified

July 24, 2019

Enrollment Period

3.7 years

First QC Date

July 31, 2015

Results QC Date

September 28, 2020

Last Update Submit

June 25, 2021

Conditions

Keywords

LDL-COmega-3 Fatty AcidPCSK9HDL-C

Outcome Measures

Primary Outcomes (1)

  • Plasma PCSK9 Levels at Baseline and End of 6 Week Intervention

    Measure plasma proprotein convertase subtilisin/kexin type 9 (PCSK9) level, at baseline, after 6 weeks of Eicosapentaenoic acid (EPA) or Docosahexaenoic acid (DHA) fish oil supplementation.

    baseline to 6 weeks of intervention

Secondary Outcomes (1)

  • Plasma Levels in Triglyceride, Cholesterol, and Lipoprotein From Baseline to 6 Weeks

    Baseline to 6 weeks of intervention

Study Arms (2)

EPA-rich fish oil arm then DHA-rich fish oil arm

EXPERIMENTAL

Subjects randomized to the EPA-rich fish oil arm will take the equivalent to 3g of EPA /day (12 gel capsules/day) for 6 more or less 1 weeks and cross-over to the DHA-rich capsule arm

Drug: EPA-rich fish oil

DHA-rich fish oil arm then EPA-rich fish oil arm

EXPERIMENTAL

Subjects randomized to the DHA-rich fish oil arm will take the equivalent to 3g of DHA /day (12 gel capsules/day) for 6 more or less 1 weeks and cross-over to the EPA-rich capsule arm

Drug: DHA-rich fish oil

Interventions

4 gel capsules, 3 times/day for 6 weeks

Also known as: Eicosapentaenoic acid (EPA) Fish Oil
EPA-rich fish oil arm then DHA-rich fish oil arm

4 gel capsules, 3 times/day for 6 weeks

Also known as: Docosahexaenoic acid (DHA) Fish Oil
DHA-rich fish oil arm then EPA-rich fish oil arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female participants 18 years of age or above.
  • Subject must be healthy, with no known history of cardiovascular disease.
  • Subject understands protocol and provides written, informed consent in addition to a willingness to comply with specified follow-up evaluations.

You may not qualify if:

  • Pregnancy, planned pregnancy (within the study period) or women currently breastfeeding.
  • Subjects with weight changes greater than 20% over the past 3 months.
  • Subjects planning a significant change in diet or exercise levels.
  • Subjects already consuming more than 1.5 g per day of Eicosapentaenoic Acid (EPA) or Docosahexaenoic Acid (DHA) in any form.
  • Subjects taking supplements or medications that affect lipoproteins for at least the past six weeks including fish oil supplements, bile-acid sequestrants, plant sterol supplements, fibrates, statins or Niacin.
  • Subjects diagnosed with cancer or IBD, or that have taken diarrhea inhibitors, laxatives or prebiotics in the week before stool sampling (optional), or antibiotics within 3 months before sampling.
  • Subjects taking daily aspirin or other anti-platelet or anti-coagulants agents (Plavix).
  • History of prostate Cancer
  • Subjects with known bleeding disorders (for example, Hemophilia)
  • Known sensitivity or allergy to fish, shellfish or omega-3 fatty acids supplements
  • Subjects with chronic diarrhea, gastric bypass or lap-band procedures, ostomies, bowel motility problems, or other conditions that could affect intestinal fat absorption
  • Subjects with any acute and life-threatening condition, such as prior sudden cardiac arrest, acute myocardial infarction (last three months), stroke, embolism
  • Liver enzymes (aspartate aminotransferase (AST) or alanine transaminase (ALT)) levels above 3x upper limit of normal
  • Subjects initiating new medications or patients on multiple medications may also be excluded according to investigator discretion
  • Subjects previously diagnosed with cardiac dysrhythmia
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center, 9000 Rockville Pike

Bethesda, Maryland, 20892, United States

Location

Related Links

MeSH Terms

Interventions

Eicosapentaenoic AcidFish OilsDocosahexaenoic Acids

Intervention Hierarchy (Ancestors)

Fatty Acids, Omega-3Dietary Fats, UnsaturatedDietary FatsFatsLipidsEicosanoidsFatty Acids, UnsaturatedFatty AcidsOils

Results Point of Contact

Title
Marcelo J. Amar, M.D. Principal Investigator, NIH, NHLBI
Organization
National Heart Lung and Blood Institute (NHLBI)

Study Officials

  • Marcelo J Amar, M.D.

    National Heart, Lung, and Blood Institute (NHLBI)

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
BASIC SCIENCE
Intervention Model
CROSSOVER
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 31, 2015

First Posted

August 3, 2015

Study Start

October 30, 2015

Primary Completion

July 23, 2019

Study Completion

July 23, 2019

Last Updated

July 15, 2021

Results First Posted

December 3, 2020

Record last verified: 2019-07-24

Locations