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ClinicalTrials.gov public records Last synced Oct 17, 2026, 4:48 PM EDT

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Showing 25–48 of 61 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Selenium Clear all
Completed Phase 1 Interventional

High-Selenium Brassica Juncea, Irinotecan, and Capecitabine in Treating Patients With Advanced Cancer

NCT00547547
View directory record Official record
Conditions
Unspecified Adult Solid Tumor, Protocol Specific
Interventions
high-selenium Brassica juncea, capecitabine, irinotecan hydrochloride
Dietary Supplement · Drug
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years and older
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
2
States / cities
Duarte, California • Pasadena, California
Source: ClinicalTrials.gov public record
Updated Nov 6, 2015 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 2 Interventional

Selenium in Treating Patients With Prostate Cancer

NCT00752739
View directory record Official record
Conditions
Prostate Cancer
Interventions
selenium, placebo
Dietary Supplement · Other
Lead sponsor
University of Arizona
Other
Eligibility
Up to 85 Years · Male only
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2007
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 15, 2012 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Selenium Supplementation of Patients With Cirrhosis

NCT00212186
View directory record Official record
Conditions
Healthy, Liver Cirrhosis
Interventions
Selenium Supplements (essential nutrient)
Drug
Lead sponsor
Vanderbilt University
Other
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2003
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Efficacy and Safety of Clear Skin Formula on Mitigating Mild to Moderate Non-cystic Acne

NCT05879406
View directory record Official record
Conditions
Non-Cystic Acne
Interventions
VitaMedica® Clear Skin Formula capsules, Placebo Capsules
Dietary Supplement · Other
Lead sponsor
Ablon Skin Institute Research Center
Other
Eligibility
18 Years to 40 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Manhattan Beach, California
Source: ClinicalTrials.gov public record
Updated Apr 6, 2025 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Supplementary Vitamins on Oxidant Gene Expression in the Lungs of Healthy Smokers

NCT00565214
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
Group 1, Group 2
Dietary Supplement
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 70 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 25, 2017 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Antenatal Micronutrient Supplementation and Infant Survival

NCT00860470
View directory record Official record
Conditions
Infant Mortality, Preterm Birth, Low Birth Weight, Neonatal Mortality, Perinatal Mortality
Interventions
Iron (27 mg) - folic acid (600 ug), Multiple micronutrient
Dietary Supplement
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
12 Years to 45 Years · Female only
Enrollment
44,567 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 19, 2022 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 3 Interventional Results available

Selenium in Preventing Tumor Growth in Patients With Previously Resected Stage I Non-small Cell Lung Cancer

NCT00008385
View directory record Official record
Conditions
Lung Cancer
Interventions
placebo, selenium
Other · Drug
Lead sponsor
ECOG-ACRIN Cancer Research Group
Network
Eligibility
18 Years and older
Enrollment
1,772 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2019
U.S. locations
515
States / cities
Mobile, Alabama • Phoenix, Arizona • Scottsdale, Arizona + 339 more
Source: ClinicalTrials.gov public record
Updated Jul 5, 2023 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional

Effect of Transdermal Magnesium Chloride on Quality of Life in Patients With Fibromyalgia

NCT01968772
View directory record Official record
Conditions
Fibromyalgia, Fibromyalgia Syndrome
Interventions
Transdermal Magnesium Chloride
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
40 Years to 70 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 24, 2014 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

S0000 Selenium and Vitamin E in Preventing Prostate Cancer

NCT00006392
View directory record Official record
Conditions
Prostate Cancer
Interventions
Vitamin E, Selenium, Vitamin E placebo, selenium placebo
Drug · Other
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
50 Years to 120 Years · Male only
Enrollment
35,533 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2012
U.S. locations
13
States / cities
Chicago, Illinois • Joliet, Illinois • Maywood, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Nov 20, 2015 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional

Effect of Selenium Supplementation on Trace Mineral Antioxidant Enzyme and Amino Acid Metabolism in Infants

NCT02066610
View directory record Official record
Conditions
Preterm Infants
Interventions
selenium and sodium selenate supplementation, selenium and sodium selenite supplementation, Without selenium and sodium selenate supplementation, Without selenium and sodium selenite supplementation
Other
Lead sponsor
Abbott Nutrition
Industry
Eligibility
Not listed
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1991 – 1993
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 19, 2014 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 1Phase 2 Interventional Results available

SLM + Axitinib for Clear Cell RCC

NCT02535533
View directory record Official record
Conditions
Advanced Metastatic Clear Cell Renal Cell Carcinoma (CCRCC)
Interventions
Selenomethionine (SLM), Axitinib
Drug
Lead sponsor
Mohammed Milhem
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2025
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Oct 17, 2026, 4:48 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Pilot Study: Impact of Biomarker-Guided Dietary Supplementation on Quality-of-Life Measures in Subjects With Chronic Pain

NCT06247813
View directory record Official record
Conditions
Chronic Pain
Interventions
Inflammation Support Formula, Nerve Health Formula, Redox Support Formula
Dietary Supplement
Lead sponsor
Ethos Research & Development
Industry
Eligibility
18 Years to 75 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Newport, Kentucky
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Se-Methyl-Seleno-L-Cysteine or Selenomethionine in Preventing Prostate Cancer in Healthy Participants

NCT01497431
View directory record Official record
Conditions
No Evidence of Disease, Prostate Carcinoma
Interventions
Selenium, Placebo, Laboratory Biomarker Analysis, Pharmacological Study, Methylselenocysteine
Dietary Supplement · Other · Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
40 Years to 80 Years · Male only
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
3
States / cities
Chicago, Illinois • Buffalo, New York • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 26, 2014 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 2 Interventional Results available

Selenomethionine and Finasteride Before Surgery or Radiation Therapy in Treating Patients With Stage I or Stage II Prostate Cancer

NCT00736645
View directory record Official record
Conditions
Prostate Cancer
Interventions
selenomethionine, finasteride, placebo
Dietary Supplement · Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years and older · Male only
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Oct 2, 2023 · Synced Oct 17, 2026, 4:48 PM EDT
Terminated Phase 2 Interventional Results available

Carboplatin, Paclitaxel, Selenomethionine, and Radiation Therapy in Treating Patients With Stage III Non-Small Cell Lung Cancer That Cannot Be Removed by Surgery

NCT00526890
View directory record Official record
Conditions
Lung Cancer
Interventions
selenomethionine, carboplatin, paclitaxel, laboratory biomarker analysis, radiation therapy
Dietary Supplement · Drug · Other + 1 more
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
18 Years to 120 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Nov 28, 2017 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 2 Interventional

Herbal Therapy for Treatment of Recurrent Prostate Cancer

NCT00669656
View directory record Official record
Conditions
Prostate Cancer
Interventions
Prostate Health Cocktail
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years and older · Male only
Enrollment
43 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 20, 2017 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

S0000D: Effect of Vitamin E and/or Selenium on Colorectal Polyps in Men Enrolled on SELECT Trial SWOG-S0000

NCT00706121
View directory record Official record
Conditions
Colorectal Cancer, Precancerous Condition
Interventions
Vitamin E, Selenium, Vitamin E placebo, selenium placebo
Drug
Lead sponsor
SWOG Cancer Research Network
Network
Eligibility
50 Years to 120 Years · Male only
Enrollment
8,094 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Oct 17, 2026, 4:48 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Selenium for Prevention of Adenomatous Colorectal Polyps

NCT00078897
View directory record Official record
Conditions
Colorectal Cancer, Adenomatous Colorectal Polyps, Precancerous Condition
Interventions
Selenium
Drug
Lead sponsor
University of Arizona
Other
Eligibility
40 Years to 80 Years
Enrollment
1,621 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2018
U.S. locations
7
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2019 · Synced Oct 17, 2026, 4:48 PM EDT
Terminated Phase 4 Interventional Results available

The Effect of Selenium Supplementation Among Pediatric Patients With Burns

NCT00860379
View directory record Official record
Conditions
Burns
Interventions
Selenium1, Selenium2, Placebo
Drug
Lead sponsor
Shriners Hospitals for Children
Other
Eligibility
1 Year to 18 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 29, 2021 · Synced Oct 17, 2026, 4:48 PM EDT
Completed No phase listed Observational

Correlation of HIV Levels With Clinical and Immunologic Outcome in Children Treated With Didanosine

NCT00026676
View directory record Official record
Conditions
HIV Infection
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
Not listed
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 2 Interventional Results available

Males, Antioxidants, and Infertility Trial

NCT02421887
View directory record Official record
Conditions
Male Infertility
Interventions
Antioxidant Supplement, Placebo
Drug · Other
Lead sponsor
Yale University
Other
Eligibility
18 Years and older · Male only
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
10
States / cities
Los Angeles, California • San Francisco, California • Sunnyvale, California + 7 more
Source: ClinicalTrials.gov public record
Updated Sep 4, 2019 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Phase 1 Interventional

Selenium in Treating Patients Who Are Undergoing Brachytherapy for Stage I or Stage II Prostate Cancer

NCT00217516
View directory record Official record
Conditions
Prostate Cancer
Interventions
selenium, placebo
Drug · Other
Lead sponsor
Roswell Park Cancer Institute
Other
Eligibility
Male only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Feb 9, 2012 · Synced Oct 17, 2026, 4:48 PM EDT
Recruiting Phase 2 Interventional

Selenium Supplementation in Moderate-Severely Active Ulcerative Colitis Patients Treated With Advanced Therapies

NCT07427017
View directory record Official record
Conditions
Ulcerative Colitis (UC)
Interventions
Selenium supplementation, Placebo
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 85 Years
Enrollment
180 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 17, 2026, 4:48 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Antioxidants on Cardiovascular Risk Factors

NCT00756405
View directory record Official record
Conditions
Obesity, Hyperlipidemia, Hypertension
Interventions
Antioxidant diet, Antioxidant supplement, Placebo
Behavioral · Dietary Supplement
Lead sponsor
Christopher Gardner
Other
Eligibility
18 Years and older
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Oct 17, 2026, 4:48 PM EDT