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ClinicalTrials.gov public records Last synced Oct 11, 2026, 4:56 AM EDT

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Showing 73–96 of 334 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: omega-3 fatty acids (fish oil) Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Efficacy of Fish Oil or Olive Oil Supplementation on the Health Effects of Ozone Exposure in Healthy Young Subjects

NCT03395119
View directory record Official record
Conditions
Healthy, Dietary Supplement
Interventions
Ozone, Fish Oil, Olive Oil
Drug · Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 15, 2021 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Fish Oil and Green Tea Extract in Preventing Prostate Cancer in Patients Who Are at Risk for Developing Prostate Cancer

NCT00253643
View directory record Official record
Conditions
Precancerous Condition, Prostate Cancer
Interventions
green tea catechin extract, fish oil, placebo
Dietary Supplement · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
21 Years to 120 Years · Male only
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
3
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Is Omega-3 Fatty Acid Red Blood Cell (RBC) Saturation Product Dependent?

NCT01091714
View directory record Official record
Conditions
Cardioprotective Levels
Interventions
Omega-3
Dietary Supplement
Lead sponsor
Bucci Laser Vision Institute
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Wilkes-Barre, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 5, 2011 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omega-3 Fatty Acids and Muscle Protein Synthesis

NCT00794079
View directory record Official record
Conditions
Healthy
Interventions
omega-3 fatty acids, corn oil
Dietary Supplement
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 85 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 3, 2011 · Synced Oct 11, 2026, 4:56 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Vitamin D and Omega-3 Hypertension Trial (VITAL Hypertension)

NCT01653678
View directory record Official record
Conditions
Hypertension
Interventions
Vitamin D-3 (cholecalciferol), 2000 IU, Omega-3 fatty acids (fish oil), Vitamin D placebo, Fish oil placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years to 99 Years
Enrollment
25,875 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 2 Interventional Results available

The ENRGISE (ENabling Reduction of Low-Grade Inflammation in SEniors) Pilot Study

NCT02676466
View directory record Official record
Conditions
Inflammation
Interventions
Omega-3 fish oil, Losartan, Corn Oil (Fish oil Placebo), Cellulose Based (Losartan Placebo)
Dietary Supplement · Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
70 Years and older
Enrollment
289 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
5
States / cities
Gainesville, Florida • Chicago, Illinois • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Oct 11, 2026, 4:56 AM EDT
Terminated Phase 1 Interventional

Study of Fish Oil to Reduce ALT Levels in Adolescents

NCT00694746
View directory record Official record
Conditions
Non-alcoholic Fatty Liver Disease, Fatty Liver
Interventions
Omega-3-acid ethyl esters, Placebo
Drug
Lead sponsor
Boston University
Other
Eligibility
13 Years to 17 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 29, 2016 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 3 Interventional

Effect of 8-Week Dietary DHA Supplementation on Cerebral Blood Flow and Metabolic Function

NCT00662142
View directory record Official record
Conditions
Healthy, Attention
Interventions
docosahexaenoic acid
Dietary Supplement
Lead sponsor
University of Cincinnati
Other
Eligibility
8 Years to 10 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 17, 2013 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omega-3-fatty Acids on Age-related Macular

NCT01258335
View directory record Official record
Conditions
Aged Macular Degeneration
Interventions
Omega 3, Olive Oil
Dietary Supplement · Other
Lead sponsor
Mid Atlantic Retina
Other
Eligibility
20 Years to 49 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 22, 2011 · Synced Oct 11, 2026, 4:56 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Omega-3 Fatty Acids as Regulators of Brown Adipose Tissue During Cold Exposure

NCT05822141
View directory record Official record
Conditions
Cold Exposure
Interventions
Fish Oil, Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Bioavailability of Fish Oils: Emulsified Versus Capsular Triglyceride

NCT01488747
View directory record Official record
Conditions
Healthy Adults
Interventions
Coromega Omega-3 Squeeze, Coromega Nectar, Barleans Swirl, Nordic Omega-3 Softgel
Dietary Supplement
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years to 60 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Aug 3, 2018 · Synced Oct 11, 2026, 4:56 AM EDT
Terminated Phase 3 Interventional

Study of Taxoprexin Injection vs. Dacarbazine in Patients With Metastatic Malignant Melanoma

NCT00087776
View directory record Official record
Conditions
Malignant Melanoma
Interventions
Taxoprexin, Dacarbazine
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
18 Years and older
Enrollment
393 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Norristown, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 23, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Corneal Nerves Function and Structure

NCT04222660
View directory record Official record
Conditions
Diabetic Peripheral Neuropathy
Interventions
Blackmores Omega Daily (4 1g capsules per day)
Dietary Supplement
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
50 Years to 75 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 23, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

The Effects of Omega-3 Fatty Acids on Metabolic Syndrome

NCT00350194
View directory record Official record
Conditions
Metabolic Syndrome X
Interventions
Omega-3 fatty acids
Dietary Supplement
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 75 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 2, 2012 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 4 Interventional

Supplementation in Adolescent Girls With Endometriosis

NCT02387931
View directory record Official record
Conditions
Endometriosis
Interventions
Vitamin D3, Fish Oil, Placebo
Dietary Supplement · Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
12 Years to 25 Years · Female only
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 1, 2016 · Synced Oct 11, 2026, 4:56 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Efficacy of Diet on Quality of Life in Multiple Sclerosis

NCT05007483
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting
Interventions
BodyBio Balance Oil, Kirunal Fish Oil, BodyBio PC, Modified Paleolithic Elimination diet, Time Restricted Olive Oil Based (TROO) Ketogenic Diet, Usual diet with Dietary Guidelines for Americans Diet information
Dietary Supplement · Behavioral
Lead sponsor
Terry L. Wahls
Other
Eligibility
18 Years to 70 Years
Enrollment
162 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Fish Oil (Omega 3), Immune Function, and Mood

NCT00385723
View directory record Official record
Conditions
Inflammation
Interventions
Omega 3 (Fish Oil) Supplementation, Placebo
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
40 Years to 88 Years
Enrollment
138 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 20, 2012 · Synced Oct 11, 2026, 4:56 AM EDT
Recruiting Early Phase 1 Interventional

Differential Thrombogenesis by EPA and DHA Mediated by HDL

NCT06494488
View directory record Official record
Conditions
Lipid Metabolism Disorders, Hypertriglyceridemia
Interventions
EPA, DHA
Drug
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 69 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 1, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

VITAL-DEP: Depression Endpoint Prevention in the VITamin D and OmegA-3 TriaL

NCT01696435
View directory record Official record
Conditions
Depression, Depressive Symptoms, Mood
Interventions
vitamin D3, omega-3 fatty acids (fish oil), Fish oil placebo, Vitamin D placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
18,353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Omega-3 Fatty Acids for Smoking Cessation in Pregnancy

NCT04417595
View directory record Official record
Conditions
Preterm Labor, Tobacco Use Disorder
Interventions
Fish Oil (Containing Omega-3 Acids), Olive Oil
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
16 Years to 40 Years · Female only
Enrollment
237 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Oct 11, 2026, 4:56 AM EDT
Terminated Phase 2 Interventional

Taxoprexin® Treatment for Advanced Primary Cancers of the Liver, Gallbladder or Biliary Tract

NCT00422877
View directory record Official record
Conditions
Cancer of the Liver
Interventions
Taxoprexin
Drug
Lead sponsor
American Regent, Inc.
Industry
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 16, 2025 · Synced Oct 11, 2026, 4:56 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

n-3 PUFA for Vascular Cognitive Aging

NCT01953705
View directory record Official record
Conditions
Age Related Cognitive Decline, Alzheimer's Disease, Vascular Dementia, Endothelial Dysfunction, Executive Dysfunction
Interventions
Omega 3 PUFA, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
75 Years and older
Enrollment
102 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 4, 2020 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Docosahexaenoic Acid Supplementation on Biomarkers of Concussion Over the Course of a Year in Canadian National Rugby Players

NCT03582267
View directory record Official record
Conditions
Head Trauma
Interventions
Docosahexaenoic Acid (DHA)
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
Not listed
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Sep 13, 2019 · Synced Oct 11, 2026, 4:56 AM EDT
Completed Phase 2 Interventional Results available

Fish Oil Supplementation, Nutrigenomics and Colorectal Cancer Prevention

NCT01661764
View directory record Official record
Conditions
Colorectal Adenomatous Polyps
Interventions
Eicosapentanoic acid and docosahexanoic acid, Oleic Acid
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
40 Years to 79 Years
Enrollment
141 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jun 8, 2018 · Synced Oct 11, 2026, 4:56 AM EDT