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Showing 1–24 of 45 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Omega-3 Fatty Acids (Fish Oil Supplements) Clear all
Terminated Phase 2Phase 3 Interventional Results available

Fish Oil Versus Statins Versus Placebos in Reducing Atrial Fibrillation in Patients Undergoing Thoracic Surgery for Lung Cancer

NCT01259284
View directory record Official record
Conditions
Advanced Cancers
Interventions
Atorvastatin, Fish Oil Supplement, Placebo
Drug · Dietary Supplement · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 6, 2012 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 4 Interventional Results available

Natural Treatments for the Management of Emotional Dysregulation in Youth With Non-verbal Learning Disability (NVLD) and/or Autism Spectrum Disorders (ASD)

NCT03757585
View directory record Official record
Conditions
Non-verbal Learning Disorder, Autism Spectrum Disorder, Autism
Interventions
Open-label Treatment with Omega-3 Fatty Acids + Inositol, Open-label Treatment with N-acetylcysteine
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
5 Years to 17 Years
Enrollment
54 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating the Effects of Omega-3 Fatty Acids on Heart Disease and Behavior

NCT00663871
View directory record Official record
Conditions
Cardiovascular Diseases, Mood Disorders, Inflammation
Interventions
Fish Oil, Soybean Oil (Placebo)
Dietary Supplement
Lead sponsor
University of Pittsburgh
Other
Eligibility
30 Years to 55 Years
Enrollment
272 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2021 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Fish Oil and Alpha Lipoic Acid in Treating Alzheimer's Disease

NCT00090402
View directory record Official record
Conditions
Alzheimer's Disease, Oxidative Stress, Dementia, Hyperlipidemia, Inflammation
Interventions
Fish Oil, Lipoic Acid, Fish Oil Placebo, Lipoic Acid Placebo
Dietary Supplement · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
55 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional

Correlative Analysis of the Genomics of Vitamin D and Omega-3 Fatty Acid Intake in Prostate Cancer

NCT03290417
View directory record Official record
Conditions
Prostate Cancer
Interventions
Vitamin D, Omega-3, Turmeric
Dietary Supplement
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Male only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Sep 28, 2026, 8:25 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Omega-3 Fatty Acids in Ambient Air Pollution Exposure in Healthy Adults

NCT02921048
View directory record Official record
Conditions
Health Effects of Ambient Air Pollution
Interventions
omega-3 fatty acids
Dietary Supplement
Lead sponsor
U.S. EPA Human Studies Facility
Federal
Eligibility
25 Years to 55 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 9, 2022 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 2Phase 3 Interventional

Omega 3 Fish Oil Supplements vs. Placebo for Patients With Non-alcoholic Steatohepatitis (NASH)

NCT00681408
View directory record Official record
Conditions
Non-alcoholic Steatohepatitis, Fatty Liver
Interventions
Omega 3 Fish Oil supplements, Placebo
Drug
Lead sponsor
University of Virginia
Other
Eligibility
21 Years and older
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 28, 2015 · Synced Sep 28, 2026, 8:25 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Bioavailability of EPA and DHA From Two Dietary Supplements

NCT01908374
View directory record Official record
Conditions
Hypertriglyceridemia
Interventions
DHA-rich fish oil versus Phospholipid-rich fish oil
Dietary Supplement
Lead sponsor
Arctic Nutrition AS
Industry
Eligibility
18 Years to 59 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Addison, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 24, 2013 · Synced Sep 28, 2026, 8:25 PM 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 2, 2018 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Early Phase 1 Interventional

Omega-3 Fatty Acids That Affect the Immune System in Kidney Transplant Patients

NCT00047983
View directory record Official record
Conditions
Kidney Diseases
Interventions
Canola oil, Arginine, Fish oil emulsion
Dietary Supplement
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
4 Years and older
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 2004
U.S. locations
4
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland • Durham, North Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2017 · Synced Sep 28, 2026, 8:25 PM EDT
Recruiting Not applicable Interventional

A Study of a Plant-Based Diet and Dietary Supplements in People With Smoldering Multiple Myeloma (SMM) or Monoclonal Gammopathy of Undetermined Significance (MGUS)

NCT06055894
View directory record Official record
Conditions
Multiple Myeloma, Smoldering, Multiple Myeloma, Monoclonal Gammopathy of Undetermined Significance
Interventions
Omega-3, Curcumin, Probiotic, Whole food, plant-based diet (WFPBD)
Dietary Supplement · Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
Basking Ridge, New Jersey • Middletown, New Jersey • Montvale, New Jersey + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 12, 2025 · Synced Sep 28, 2026, 8:25 PM EDT
Terminated Phase 2Phase 3 Interventional Results available

Omega 3 FA Supplements as Augmentation in the Treatment of Depression

NCT01803711
View directory record Official record
Conditions
Major Depression, Cancer, Diabetes, Cardiovascular Diseases
Interventions
Desvenlafaxine, Omega 3 Fatty acids, Placebo (for Omega 3 fatty acid supplement)
Drug · Dietary Supplement
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 26, 2017 · Synced Sep 28, 2026, 8:25 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Omega-3 Fatty Acid Lipidomics in Diabetes Peripheral Neuropathy

NCT05169060
View directory record Official record
Conditions
Diabetic Neuropathies
Interventions
Fish Oil Concentrate, 1000 Mg Oral Capsule, Salsalate Oral Tablet
Drug
Lead sponsor
University of Iowa
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
2
States / cities
Iowa City, Iowa • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 3 Interventional Results available

Intervention With Vitamin D and Omega-3 Supplements and Incident Heart Failure

NCT02271230
View directory record Official record
Conditions
Heart Failure
Interventions
Vitamin D and fish oil, Fish oil (EPA/DHA) alone, Vitamin D alone, Placebo
Drug · Dietary Supplement · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,871 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 2 Interventional Results available

COVID-19 Anosmia Study

NCT04495816
View directory record Official record
Conditions
Anosmia, Covid19
Interventions
Omega-3 Fatty Acid Supplement, Placebo/Control
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older
Enrollment
139 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Oct 22, 2023 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional Results available

Physiological Effects of Nutritional Support in Patients With Parkinson's Disease

NCT02445651
View directory record Official record
Conditions
Parkinson Disease, Idiopathic Parkinson Disease
Interventions
Intravenous and Oral n-acetyl cysteine, Control group, Oral Supplements: Baicalin, Ganoderma, Omega 3 and Curcumin
Dietary Supplement · Other
Lead sponsor
Thomas Jefferson University
Other
Eligibility
30 Years to 80 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 14, 2025 · Synced Sep 28, 2026, 8:25 PM EDT
Terminated Not applicable Interventional

Omega-3 Fatty Acid Supplements and Dry Eye

NCT01213342
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Omega-3 Fatty Acid, Soybean Soft Gels
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 19, 2012 · Synced Sep 28, 2026, 8:25 PM EDT
Recruiting Early Phase 1 Interventional

Tart Cherry and Omega-3's for Aromatase Inhibitor Musculoskeletal Symptoms

NCT06123286
View directory record Official record
Conditions
Breast Cancer, Aromatase Inhibitor Associated Musculoskeletal Symptoms (AIMSS), Joint Pain
Interventions
Tart Cherry, Omega 3 FA (Fish Oil)
Drug
Lead sponsor
Philip Chang
Other
Eligibility
18 Years and older · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
2
States / cities
Los Angeles, California • Torrance, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Heart & Health Study

NCT00536185
View directory record Official record
Conditions
Heart Disease
Interventions
Fish Oil, Placebo
Dietary Supplement
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
20 Years to 59 Years
Enrollment
166 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
3
States / cities
Davis, California • Oakland, California • Sacramento, California
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Phase 4 Interventional Results available

Modulation of Esophageal Inflammation in Barrett's Esophagus by Omega-3 Fatty Acids

NCT01733147
View directory record Official record
Conditions
Barrett's Esophagus, Obesity
Interventions
Omega-3 polyunsaturated fatty acids, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 85 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 10, 2022 · Synced Sep 28, 2026, 8:25 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Nutritional Supplementation in the Elderly With Weight Loss

NCT04350762
View directory record Official record
Conditions
Sarcopenia
Interventions
Protein shake + Fish Oil
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
65 Years and older
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 5, 2023 · Synced Sep 28, 2026, 8:25 PM EDT
Not listed No phase listed Observational

Effects of Omega-3 Fatty Acids on Platelets in Patients With Coronary Artery Disease With Hypertriglyceridemia

NCT01086163
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Omacor, omega-3 fatty acids in CAD patients
Drug
Lead sponsor
HeartDrug Research LLC
Other
Eligibility
50 Years to 60 Years · Male only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Towson, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 11, 2010 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional Results available

Fish Oil and Nonalcoholic Fatty Liver Disease (NAFLD) Study

NCT01285362
View directory record Official record
Conditions
Non-Alcoholic Fatty Liver Disease
Interventions
Fish Oil Supplementation, Placebo Supplementation
Drug
Lead sponsor
Columbia University
Other
Eligibility
12 Years to 18 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 4, 2022 · Synced Sep 28, 2026, 8:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Epithelial Healing and Visual Outcomes Using Omega-3 Therapy Before and After Photorefractive Keratectomy (PRK) Surgery

NCT01059019
View directory record Official record
Conditions
Refractive Error
Interventions
Omega-3 Fatty Acid Supplements
Dietary Supplement
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 28 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Sep 28, 2026, 8:25 PM EDT