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ClinicalTrials.gov public records Last synced Oct 17, 2026, 5:36 PM EDT

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Showing 1–24 of 61 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: selenium Clear all
Completed No phase listed Observational Accepts healthy volunteers

Characterization of the Pharmacokinetics of Oral Selenium Compounds in Humans Before and Following Supplementation

NCT00342966
View directory record Official record
Conditions
Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
20 Years to 60 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2010
U.S. locations
2
States / cities
Beltsville, Maryland • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 1Phase 2 Interventional

Natural Antioxidants in the Treatment of Multiple Sclerosis

NCT00010842
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
Ginkgo biloba, Alpha-lipoic acid, Vitamin E/Selenium, Essential fatty acids
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
0 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 18, 2006 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Combinatorial Nutritional Supplementation on Immune Function in Healthy Older Adults

NCT02876315
View directory record Official record
Conditions
Vitamin D Deficiency
Interventions
Redoxon VI, placebo
Dietary Supplement
Lead sponsor
Oregon State University
Other
Eligibility
55 Years to 75 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Corvallis, Oregon
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Results available

Trial of Glutamine and Antioxidant Supplementation in Critically Ill Patients

NCT00133978
View directory record Official record
Conditions
Critical Illness, Sepsis, Multiple Organ Failure
Interventions
Glutamine, Antioxidants, Glutamine + Antioxidants, Placebo
Other
Lead sponsor
Daren K. Heyland
Other
Eligibility
18 Years and older
Enrollment
1,223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2012
U.S. locations
5
States / cities
Aurora, Colorado • Louisville, Kentucky • Dayton, Ohio + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 7, 2021 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

S0000B: Vitamin E and/or Selenium in Preventing Cataract and Age-Related Macular Degeneration in Men on SELECT SWOG-S0000

NCT00784225
View directory record Official record
Conditions
Cataract, Macular Degeneration
Interventions
selenium, vitamin E, vitamin E placebo, selenium placebo
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
50 Years to 120 Years · Male only
Enrollment
13,475 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 14, 2019 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 1 Interventional

Burn Micronutrient Repletion Pilot Study

NCT00879723
View directory record Official record
Conditions
Burn
Interventions
Vitamin and Mineral supplementation
Dietary Supplement
Lead sponsor
Southern Illinois University
Other
Eligibility
19 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Springfield, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 26, 2015 · Synced Oct 17, 2026, 5:36 PM EDT
Active, not recruiting Phase 1Phase 2 Interventional

Seleno-L Methionine (SLM)-Axitinib-Pembrolizumab

NCT05363631
View directory record Official record
Conditions
Clear Cell Renal Cell Carcinoma, Clear Cell Renal Cell Carcinoma Metastatic
Interventions
Selenomethionine (SLM), Axitinib, Pembrolizumab
Drug
Lead sponsor
Mohammed Milhem
Other
Eligibility
18 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pharmacokinetic Profile of N-Acetyl Cysteine

NCT06252519
View directory record Official record
Conditions
Pharmacokinetics
Interventions
NAC, Neuro-NAC, Neuro-NAC XS
Dietary Supplement
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 45 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 16, 2024 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Results available

Glutathione Metabolism in Adolescents With Type 1 Diabetes - Study B

NCT00858273
View directory record Official record
Conditions
Diabetes Mellitus, Type 1
Interventions
Antioxidant supplement, Diabetes treatment, Regular Insulin
Dietary Supplement · Other · Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
12 Years to 21 Years
Enrollment
41 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Selenium on Prostate Cancer Related Biomarkers

NCT01112449
View directory record Official record
Conditions
Effect of Selenium on Oxidative Stress in Healthy Men
Interventions
Placebo, selenomethionine, low dose selenized-yeast, high dose selenized-yeast
Other · Dietary Supplement
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
20 Years to 79 Years · Male only
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2015 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 2 Interventional Results available

Alii Supplement Study

NCT07271316
View directory record Official record
Conditions
Nutrient Deficiency, Happiness, Digestive Health, Vulnerability to Disease, Mood Swings, Energy
Interventions
Alii Supplement
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Clinical Trial to Evaluate the Effects of a Supplement on Symptoms Associated With Hormone Imbalance

NCT07765381
View directory record Official record
Conditions
Hormone Imbalance, Thyroid Hormone Imbalance, Low Energy, Metabolic Symptoms, Unhealthy Eating Habits
Interventions
Hello Burn, Balance Supplement
Dietary Supplement
Lead sponsor
Love Wellness
Industry
Eligibility
25 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Study to Evaluate SPI-1005 in Adults With Meniere's Disease

NCT02603081
View directory record Official record
Conditions
Meniere's Disease
Interventions
SPI-1005
Drug
Lead sponsor
Sound Pharmaceuticals, Incorporated
Industry
Eligibility
19 Years to 70 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
5
States / cities
Los Angeles, California • New York, New York • Charleston, South Carolina + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Oct 17, 2026, 5:36 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

A Study to Assess the Impact of a Nutritional Supplement on Wellbeing and Nutrient Absorption

NCT06749808
View directory record Official record
Conditions
Nutrition Status
Interventions
Carotenoid Nutritional Supplement, Placebo
Dietary Supplement
Lead sponsor
Pharmanex
Industry
Eligibility
20 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Provo, Utah
Source: ClinicalTrials.gov public record
Updated Dec 31, 2024 · Synced Oct 17, 2026, 5:36 PM EDT
Not listed Early Phase 1 Interventional Accepts healthy volunteers

Colon Cancer Prevention Using Selenium

NCT01211561
View directory record Official record
Conditions
Prevention of Colorectal Cancer
Interventions
Selenium, selenomethionine, placebo
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
50 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 29, 2010 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 1 Interventional

Sodium Selenite and Radiation Therapy in Treating Patients With Metastatic Cancer

NCT02184533
View directory record Official record
Conditions
Adenocarcinoma of the Prostate, Hormone-resistant Prostate Cancer, Recurrent Prostate Cancer, Stage IV Prostate Cancer, Multiple Myeloma, Plasmacytoma
Interventions
sodium selenite, radiation therapy, laboratory biomarker analysis, pharmacological study, questionnaire administration
Drug · Radiation · Other
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 28, 2024 · Synced Oct 17, 2026, 5:36 PM EDT
Terminated Phase 1 Interventional

Selenium in the Treatment of Complicated Lymphatic Malformations

NCT01212965
View directory record Official record
Conditions
Lymphatic Malformations
Interventions
Selenium
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
14 Years to 30 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 23, 2013 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

AT-001 for Long-term Preservation of Brain Health in Aging

NCT03062384
View directory record Official record
Conditions
Oxidative Stress
Interventions
AT-001, Placebo
Dietary Supplement
Lead sponsor
University of Kentucky
Other
Eligibility
65 Years and older
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Aug 20, 2019 · Synced Oct 17, 2026, 5:36 PM EDT
Not listed Phase 2 Interventional

Selenium as a Potential Treatment for Moderately-ill, Severely-ill, and Critically-ill COVID-19 Patients.

NCT04869579
View directory record Official record
Conditions
Covid19
Interventions
Selenium (as Selenious Acid), Placebo
Drug · Other
Lead sponsor
CHRISTUS Health
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Longview, Texas
Source: ClinicalTrials.gov public record
Updated Aug 3, 2021 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Predicting Dietary Selenium Needs to Achieve Target Blood Selenium Levels

NCT00803699
View directory record Official record
Conditions
Nutritional Requirements
Interventions
placebo, selenium as L-selenomethionine
Dietary Supplement
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
18 Years and older
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated May 29, 2018 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Not applicable Interventional

Selenium Sulfide, Ketoconazole and Ciclopirox Shampoo as Additional Treatments for Tinea Capitis (Scalp Ringworm)

NCT00127868
View directory record Official record
Conditions
Tinea Capitis
Interventions
oral griseofulvin, selenium sulfide shampoo 1%, ciclopirox shampoo , ketoconazole shampoo 2%, baby shampoo
Drug
Lead sponsor
Chen, Catherine, M.D.
Other
Eligibility
12 Months to 12 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 9, 2008 · Synced Oct 17, 2026, 5:36 PM EDT
Terminated Not applicable Interventional

Selenium Supplementation of Patients With Cirrhosis

NCT00271245
View directory record Official record
Conditions
Liver Disease
Interventions
200 µg selenium as selenate, 400 µg selenium as selenate, 200 µg selenium as selenomethionine, Placebo
Dietary Supplement
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Oct 17, 2026, 5:36 PM EDT
Completed Phase 2 Interventional Results available

Effects of an Antioxidant-Enriched Multivitamin Supplement on Inflammation and Oxidative Stress in Cystic Fibrosis

NCT01859390
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
AquADEKs-2, control multivitamin
Drug · Dietary Supplement
Lead sponsor
University of Colorado, Denver
Other
Eligibility
10 Years and older
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
15
States / cities
Tucson, Arizona • Aurora, Colorado • Orlando, Florida + 12 more
Source: ClinicalTrials.gov public record
Updated Jul 14, 2017 · Synced Oct 17, 2026, 5:36 PM EDT
Terminated Phase 3 Interventional Results available

The CRISIS Prevention Study

NCT00395161
View directory record Official record
Conditions
Sepsis
Interventions
Metoclopramide, Zinc, Glutamine, Selenium, saline, sterile water, selenium, whey-protein
Drug · Dietary Supplement · Other
Lead sponsor
Michael Dean
Other
Eligibility
12 Months to 17 Years
Enrollment
293 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
7
States / cities
Little Rock, Arkansas • Los Angeles, California • Washington D.C., District of Columbia + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2013 · Synced Oct 17, 2026, 5:36 PM EDT