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ClinicalTrials.gov public records Last synced Oct 12, 2026, 2:28 AM EDT

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Showing 121–144 of 334 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: omega-3 fatty acids (fish oil) Clear all
Not listed Not applicable Interventional Accepts healthy volunteers

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

NCT01785004
View directory record Official record
Conditions
Adiposity
Interventions
Vitamin D3 (cholecalciferol), 2000 IU per day, omega-3 fatty acids (fish oil)
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Oct 12, 2026, 2:28 AM EDT
Withdrawn Not applicable Interventional

Use of Omega-3 Fatty Acids (Fish Oil) in Patients With Chronic Hepatitis C Infection

NCT00547716
View directory record Official record
Conditions
Hepatitis C
Interventions
Omega-3 Fatty Acids, Placebo comparator
Dietary Supplement · Drug
Lead sponsor
University of Missouri, Kansas City
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
2
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Early Phase 1 Interventional

Window of Opportunity Study Targeting the Inflammatory Milieu

NCT01881048
View directory record Official record
Conditions
Stage IA Breast Cancer, Stage IB Breast Cancer, Stage II Breast Cancer, Stage IIIA Breast Cancer, Stage IIIB Breast Cancer, Stage IIIC Breast Cancer, Stage IV Breast Cancer
Interventions
Omega-3 fatty acid, Celecoxib
Dietary Supplement · Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 12, 2026, 2:28 AM 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 6, 2023 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of High Omega-3 Fish Intake on Lipid Peroxidation

NCT01183520
View directory record Official record
Conditions
Omega-3 Fatty Acids, Lipid Peroxidation
Interventions
Omega-3 fish oil provided by salmon
Dietary Supplement
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
40 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Feb 2, 2022 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Infections: Dietary Regulation of Local and Systemic Inflammatory Responses

NCT00632957
View directory record Official record
Conditions
Periodontal Attachment Loss
Interventions
Omega-3 Fatty acid (with SRP or OHI), Placebo
Dietary Supplement
Lead sponsor
University of Kentucky
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 12, 2011 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 4 Interventional Results available

Omega Tots: A Randomized, Controlled Trial of Long-chain Polyunsaturated Fatty Acid Supplementation of Toddler Diets and Developmental Outcomes

NCT01576783
View directory record Official record
Conditions
Preterm Birth, Child Development
Interventions
Docosahexaenoic Acid + Arachidonic Acid (DHA+AA), Placebo
Drug · Dietary Supplement
Lead sponsor
Sarah Keim
Other
Eligibility
10 Months to 16 Months
Enrollment
377 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 4 Interventional Results available

Inositol and Omega-3 Fatty Acids in Pediatric Mania

NCT01396486
View directory record Official record
Conditions
Pediatric Bipolar Spectrum Disorders
Interventions
Omega-3, Inositol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
5 Years to 12 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Pilot Study: Lipoic Acid and Omega-3 Fatty Acids for Alzheimer's Prevention

NCT01780974
View directory record Official record
Conditions
Treated Hypertension
Interventions
Lipoic Acid plus Omega-3 Fatty Acids, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
55 Years and older
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 7, 2017 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 1 Interventional

Effect of DHA Supplements on Macular Function in Patients With Stargardt Macular Dystrophy and Stargardt-like Macular Dystrophy

NCT00060749
View directory record Official record
Conditions
Macular Degeneration
Interventions
Docosahexaenoic Acid (DHA) Dietary Supplement
Drug
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

Omega-3 Fatty Acids in Treating Women With Newly Diagnosed Ductal Carcinoma In Situ and/or Atypical Ductal Hyperplasia

NCT00627276
View directory record Official record
Conditions
Breast Cancer, Precancerous Condition
Interventions
omega-3 fatty acid, placebo
Dietary Supplement · Other
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
21 Years to 120 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 27, 2017 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

Use of Fish Oil to Reduce Inflammation During Endovascular Abdominal Aortic Repair

NCT03208920
View directory record Official record
Conditions
PAD, Abdominal Aortic Aneurysm
Interventions
Pro-Omega, ProOmega Placebo
Dietary Supplement · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 90 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Oct 12, 2026, 2:28 AM EDT
Active, not recruiting Not applicable Interventional

Omega 3 Fatty Acids and ERPR(-)HER2(+/-) Breast Cancer Prevention

NCT02295059
View directory record Official record
Conditions
Breast Cancer
Interventions
omega 3 fatty acids
Dietary Supplement
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2027
U.S. locations
2
States / cities
Duarte, California • Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 3, 2026 · Synced Oct 12, 2026, 2:28 AM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers Results available

Vitamin D and Omega-3 Trial (VITAL)

NCT01169259
View directory record Official record
Conditions
Cancer, Cardiovascular Disease
Interventions
vitamin D3, omega-3 fatty acids (fish oil), Vitamin D3 placebo, Fish oil placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,871 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 12, 2026, 2:28 AM EDT
Withdrawn Not applicable Interventional

Study of Supplementation of Antidepressants With Fish Oil to Improve Time to Clinical Response

NCT00963196
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Omega-3 fatty acid, Bovine gelatin capsules
Dietary Supplement · Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 4, 2010 · Synced Oct 12, 2026, 2:28 AM EDT
Recruiting Not applicable Interventional

Concentration of n-3 PUFA Monohydroxylated Derivatives in Adults With Obesity After n-3 PUFA Supplementation.

NCT06991296
View directory record Official record
Conditions
Obesity
Interventions
SPM Active®
Dietary Supplement
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
45 Years to 60 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Kannapolis, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Omega 3 Fatty Acid Trial

NCT00586222
View directory record Official record
Conditions
Omega-3 Fatty Acids, Pediatric Bipolar Disorder, Adolescent Bipolar Disorder, Magnetic Resonance Spectroscopy Imaging
Interventions
Omega-3 Fatty Acid, Placebo
Dietary Supplement · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
12 Years to 18 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 25, 2012 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Randomized Trial of DHA for Retinitis Pigmentosa Patients Receiving Vitamin A

NCT00000116
View directory record Official record
Conditions
Retinitis Pigmentosa
Interventions
Vitamin A, Docosahexaenoic acid, Control fatty acid
Dietary Supplement
Lead sponsor
Carol Weigel DiFranco
NIH
Eligibility
18 Years to 55 Years
Enrollment
221 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 8, 2023 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

The Effect of Fish Oil Supplementation on Endothelial Function, Heart Rate Variability and Intimal Media Thickness of Patients With Coronary Artery Disease

NCT00454493
View directory record Official record
Conditions
Coronary Artery Disease
Interventions
Omacor (omega-3-acid ethyl esters)
Drug
Lead sponsor
Olive View-UCLA Education & Research Institute
Other
Eligibility
18 Years to 75 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Sylmar, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2019 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

Omega-3 Fatty Acid in Treating Pain in Patients With Breast or Ovarian Cancer Receiving Paclitaxel

NCT01821833
View directory record Official record
Conditions
Breast Cancer, Ovarian Neoplasm, Pain
Interventions
Omega-3 fatty acid, Placebo, Paclitaxel
Dietary Supplement · Drug
Lead sponsor
New Mexico Cancer Research Alliance
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2022
U.S. locations
2
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Oct 5, 2022 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain

NCT01351805
View directory record Official record
Conditions
Autoimmune Diseases, Systemic Inflammatory Process, Knee Pain Chronic, Osteoarthritis, Rheumatoid Arthritis
Interventions
Fish Oil, Vitamin D, placebo pill
Drug · Dietary Supplement · Other
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,871 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 3, 2025 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Phase 1 Interventional

Effect of Polyunsaturated Fatty Acids on Cardiovascular and Motor Responses Under Stress

NCT00014027
View directory record Official record
Conditions
Healthy
Interventions
Docosahexaenoic acid (DHA), Eicosapentaenoic acid
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

Testing Fish Oil Derivatives In Healing Of Chronic Venous Leg Ulcers

NCT01754506
View directory record Official record
Conditions
Venous Stasis Ulcers
Interventions
Fish Oil
Dietary Supplement
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 85 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 16, 2015 · Synced Oct 12, 2026, 2:28 AM EDT
Completed Not applicable Interventional

The Use of Fish Oil to Reduce Inflammation Caused by a Peripheral Vascular Intervention

NCT02096757
View directory record Official record
Conditions
Peripheral Arterial Disease
Interventions
Pro-Omega, Pro-Omega Placebo
Dietary Supplement · Other
Lead sponsor
University of California, San Francisco
Other
Eligibility
40 Years to 90 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2020 · Synced Oct 12, 2026, 2:28 AM EDT