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ClinicalTrials.gov public records Last synced Oct 9, 2026, 3:58 PM EDT

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Showing 97–120 of 231 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Placebo of fish oil Clear all
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 9, 2026, 3:58 PM 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 9, 2026, 3:58 PM 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 9, 2026, 3:58 PM 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 9, 2026, 3:58 PM 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 9, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Weight Loss Plus Omega-3 Fatty Acids or Placebo in High Risk Women

NCT02101970
View directory record Official record
Conditions
Breast Cancer
Interventions
Omega-3 Fatty Acids, Placebo Capsule, Diet and Exercise
Dietary Supplement · Other
Lead sponsor
Carol Fabian, MD
Other
Eligibility
45 Years to 70 Years · Female only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2022 · Synced Oct 9, 2026, 3:58 PM EDT
Withdrawn Not applicable Interventional

Omega 3 Supplementation and Ocular Surface Disease in Glaucoma

NCT01630551
View directory record Official record
Conditions
Ocular Surface Disease
Interventions
Fishoil supplement, Olive Oil
Dietary Supplement
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 28, 2017 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Results available

Polyunsaturated Fatty Acids (PUFA) in Diabetic Fatty Liver

NCT00323414
View directory record Official record
Conditions
Fatty Liver
Interventions
Polyunsaturated fatty acid (Opti-EPA), Placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 23, 2018 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Results available

A Study to Assess the Safety and Efficacy of Oral Insulin in T2DM Patients With Nonalcoholic Steatohepatitis (NASH)

NCT04618744
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, NASH - Nonalcoholic Steatohepatitis
Interventions
ORMD-0801 (Insulin) capsule 8 mg BD, Placebo
Drug · Other
Lead sponsor
Oramed, Ltd.
Industry
Eligibility
18 Years to 70 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Tustin, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2024 · Synced Oct 9, 2026, 3:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers Results available

Age-related Macular Degeneration (AMD) in the Vitamin D and Omega-3 Trial (VITAL)

NCT01782352
View directory record Official record
Conditions
Age-related Macular Degeneration
Interventions
Omega-3 fatty acids (fish oil), Vitamin D3, Vitamin D3 placebo, Fish oil placebo
Drug · Dietary Supplement
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,871 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 8, 2023 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 2Phase 3 Interventional Results available

Dry Eye Assessment and Management: Feasibility Study

NCT01102257
View directory record Official record
Conditions
Dry Eye Syndromes, Keratoconjunctivitis Sicca
Interventions
Omega-3 EFA Supplement, Olive Oil
Drug
Lead sponsor
Asbell, Penny, M.D.
Individual
Eligibility
18 Years to 90 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 23, 2012 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

VITamin D and OmegA-3 TriaL (VITAL): Fractures, Vitamin D and Genetic Markers

NCT01704859
View directory record Official record
Conditions
Fractures
Interventions
Vitamin D3 placebo, Fish oil placebo, omega-3 fatty acids (fish oil), Vitamin D3
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
2018 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omega-3 Supplementation Decreases Inflammation and Fetal Obesity in Pregnancy

NCT00957476
View directory record Official record
Conditions
Inflammation, Obesity, Pregnancy, Fetal Growth
Interventions
Omega-3 Fish Oil
Dietary Supplement
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 3, 2018 · Synced Oct 9, 2026, 3:58 PM EDT
Active, not recruiting Phase 3 Interventional Accepts healthy volunteers

VITAL Rhythm Study

NCT02178410
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Vitamin D3, Omega-3 fatty acids (fish oil), Fish oil placebo, Vitamin D3 placebo
Dietary Supplement · Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
50 Years and older
Enrollment
25,119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Oct 9, 2026, 3:58 PM EDT
Terminated Phase 2 Interventional Results available

Vitamin D and n-3 Polyunsaturated Fatty Acids (PUFAs) to Prevent Chronic Pain Following Major Thermal Burn Injury

NCT03313076
View directory record Official record
Conditions
Chronic Pain Following Thermal Burn Injury
Interventions
Omega-3 fatty acids (fish oil), Vitamin D3 (cholecalciferol), Vitamin D3 (cholecalciferol) placebo, Omega-3 fatty acid placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated May 8, 2026 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Metabolic Actions of Omega-3 Fatty Acids

NCT01896414
View directory record Official record
Conditions
Metabolic Syndrome
Interventions
EPA (marine fatty acids), Placebo
Dietary Supplement
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
25 Years to 80 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
2
States / cities
Baltimore, Maryland • Lancaster, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 14, 2020 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 1 Interventional Results available

DHA For The Treatment of Pediatric Concussion Related to Sports Injury

NCT01903525
View directory record Official record
Conditions
Concussion, Mild Traumatic Brain Injury
Interventions
Docosahexaenoic acid (DHA), Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
14 Years to 18 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Plano, Texas
Source: ClinicalTrials.gov public record
Updated Jan 11, 2021 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 1 Interventional

Effect of Fish Oil and Vitamin C on Exercise-Induced Bronchoconstriction and Airway Inflammation in Asthma

NCT01057615
View directory record Official record
Conditions
Asthma
Interventions
Fish Oil, Ascorbic Acid, Fish Oil Placebo, Ascorbic Acid Placebo
Dietary Supplement
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Jan 31, 2011 · Synced Oct 9, 2026, 3:58 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Oxybutynin and Omega-3 for OAB (Overactive Bladder)

NCT02070042
View directory record Official record
Conditions
Overactive Bladder
Interventions
Omega 3 Fatty Acid, Placebo
Drug
Lead sponsor
TriHealth Inc.
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 31, 2018 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Vitamin D Supplementation on Cardiac Structure and Function

NCT01630213
View directory record Official record
Conditions
Cardiovascular Disease
Interventions
Vitamin D3 + fish oil/fish oil placebo, Vitamin D3 placebo + fish oil/fish oil placebo
Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
50 Years and older
Enrollment
1,025 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2022 · Synced Oct 9, 2026, 3:58 PM EDT
Active, not recruiting Not applicable Interventional Results available

Omega Tots Long Term Follow-up

NCT05191823
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
8 Years to 10 Years
Enrollment
377 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 2 Interventional

Pilot Study - Effect of Omega-3 on Systemic Lupus Erythematosus

NCT02021513
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Fish Oil, Olive Oil
Dietary Supplement
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 27, 2013 · Synced Oct 9, 2026, 3:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Fish Oil to Reduce Tobacco Use iN Expectant Mothers Study

NCT03077724
View directory record Official record
Conditions
Tobacco Use in Childbirth, Smoking Cessation, Pregnancy Related
Interventions
Fish oil, Placebos
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 9, 2019 · Synced Oct 9, 2026, 3:58 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

Feasibility Pilot Clinical Trial of Omega-3 Supplement vs. Placebo for Post Covid-19 Recovery Among Health Care Workers

NCT05121766
View directory record Official record
Conditions
COVID-19
Interventions
Omega-3 (EPA+DHA), Placebo
Drug
Lead sponsor
Hackensack Meridian Health
Other
Eligibility
18 Years to 89 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 9, 2026, 3:58 PM EDT