- Conditions
- Cervical Dystonia
- Interventions
- Zinc citrate, Placebo
- Drug
- Lead sponsor
- University of Florida
- Other
- Eligibility
- 18 Years to 89 Years
- Enrollment
- 25 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2026 – 2027
- U.S. locations
- 1
- States / cities
- Gainesville, Florida
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Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.
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Showing 25–48
of 24
matching trials from the live ClinicalTrials.gov search.
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- 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
- Conditions
- Premenstrual Syndrome, Menstrual Pain
- Interventions
- DITTO Cycle Supplement
- Dietary Supplement
- Lead sponsor
- Muse Nutrition Ltd
- Industry
- Eligibility
- 18 Years to 45 Years · Female only
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2025
- U.S. locations
- 1
- States / cities
- Las Vegas, Nevada
- Conditions
- Rosacea
- Interventions
- zinc sulfate, placebo
- Drug
- Lead sponsor
- Essentia Health
- Other
- Eligibility
- 18 Years and older
- Enrollment
- 65 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2006 – 2008
- U.S. locations
- 1
- States / cities
- Duluth, Minnesota
- Conditions
- Response of Fatty Acid Desaturation to Zinc Intake
- Interventions
- 30 mg Zn Amino Acid daily for 13 days, 30 mg Zn Gluconate daily for 13 days
- Dietary Supplement
- Lead sponsor
- University of California, Berkeley
- Other
- Eligibility
- 18 Years to 50 Years · Male only
- Enrollment
- 26 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024
- U.S. locations
- 1
- States / cities
- Berkeley, California
- Conditions
- Zinc Deficiency, Dyslipidemias, Zinc Excess, Inflammation
- Interventions
- Zinc supplement
- Dietary Supplement
- Lead sponsor
- UCSF Benioff Children's Hospital Oakland
- Other
- Eligibility
- 18 Years to 50 Years · Male only
- Enrollment
- 35 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2018 – 2019
- U.S. locations
- 1
- States / cities
- Oakland, California
- Conditions
- Infant,Premature, Bronchopulmonary Dysplasia, Growth Failure
- Interventions
- Zinc Acetate, No supplemental zinc
- Dietary Supplement · Other
- Lead sponsor
- University of Utah
- Other
- Eligibility
- 14 Days to 28 Days
- Enrollment
- 37 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2018 – 2022
- U.S. locations
- 2
- States / cities
- Murray, Utah • Salt Lake City, Utah
- Conditions
- Critical Illness
- Interventions
- Zinc sulfate
- Drug
- Lead sponsor
- UCSF Benioff Children's Hospital Oakland
- Other
- Eligibility
- 30 Days to 10 Years
- Enrollment
- 24 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2008 – 2014
- U.S. locations
- 1
- States / cities
- Oakland, California
- Conditions
- Chronic Inflammation, Inflammaging
- Interventions
- Dietary supplement, Placebo
- Dietary Supplement · Other
- Lead sponsor
- Edifice Health
- Industry
- Eligibility
- 18 Years and older
- Enrollment
- 781 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2021 – 2022
- U.S. locations
- 2
- States / cities
- Greenbrae, California • Suwanee, Georgia
- Conditions
- Nutrition
- Interventions
- zinc sulphate dietary supplement, iron sulphate-folic acid dietary supplement
- Drug
- Lead sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- NIH
- Eligibility
- 1 Month to 36 Months
- Enrollment
- 58,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2001 – 2006
- U.S. locations
- 2
- States / cities
- Baltimore, Maryland • Ithaca, New York
- Conditions
- Gastrointestinal Symptoms
- Interventions
- Prog: Purify-2
- Other
- Lead sponsor
- Nature's Sunshine Products, Inc.
- Industry
- Eligibility
- 18 Years to 69 Years
- Enrollment
- 38 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2017
- U.S. locations
- 1
- States / cities
- Lehi, Utah
- Conditions
- Mitigation of Immune Function Decrements in Response to Stress
- Interventions
- Immune-enhancing nutritional beverage, Probiotics (BB-12), Placebo (for nutritional beverage and probiotic)
- Dietary Supplement
- Lead sponsor
- United States Army Research Institute of Environmental Medicine
- Federal
- Eligibility
- 18 Years to 45 Years
- Enrollment
- 63 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2014 – 2016
- U.S. locations
- 1
- States / cities
- Natick, Massachusetts
- Conditions
- Inflammation, Oxidative Stress
- Interventions
- Diet zinc
- Other
- Lead sponsor
- UCSF Benioff Children's Hospital Oakland
- Other
- Eligibility
- 18 Years to 50 Years · Male only
- Enrollment
- 18 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2011 – 2015
- U.S. locations
- 1
- States / cities
- Oakland, California
- Conditions
- Dietary Supplements
- Interventions
- Emergen-C Core Super Orange Powder, Placebo
- Dietary Supplement
- Lead sponsor
- HALEON
- Industry
- Eligibility
- 18 Years to 64 Years
- Enrollment
- 299 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2024 – 2025
- U.S. locations
- 1
- States / cities
- New York, New York
- Conditions
- Premenstrual Syndrome
- Interventions
- Premenstrual Syndrome Supplement
- Dietary Supplement
- Lead sponsor
- Rael
- Industry
- Eligibility
- 18 Years to 40 Years · Female only
- Enrollment
- 40 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2023 – 2024
- U.S. locations
- 1
- States / cities
- Santa Monica, California
- Conditions
- Environmental Enteric Dysfunction, Zinc Deficiency, Vitamin A Deficiency
- Interventions
- 3 mg zinc sulfate supplement, 0.5 mg of 13C10-retinyl-acetate
- Drug
- Lead sponsor
- University of Colorado, Denver
- Other
- Eligibility
- 18 Months to 24 Months
- Enrollment
- 46 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2015 – 2017
- U.S. locations
- 1
- States / cities
- Aurora, Colorado
- 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
- Conditions
- Covid19, COVID-19 Pneumonia, COVID-19 Respiratory Infection, COVID-19 Acute Bronchitis
- Interventions
- Ivermectin
- Drug
- Lead sponsor
- Patrick Robinson
- Other
- Eligibility
- 12 Years to 110 Years
- Enrollment
- 1,000 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2022 – 2024
- U.S. locations
- 1
- States / cities
- San Antonio, Florida
- Conditions
- Alcoholic Hepatitis
- Interventions
- Anakinra and Zinc, Prednisone, Placebos
- Drug
- Lead sponsor
- Indiana University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 147 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2020 – 2022
- U.S. locations
- 10
- States / cities
- Phoenix, Arizona • Jacksonville, Florida • Indianapolis, Indiana + 7 more
- 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
- Conditions
- Healthy, Health Care Worker Patient Transmission, Aging
- Interventions
- PreserVision AREDS formulation soft gels or tablets, Multivitamin with 11mg of zinc
- Dietary Supplement
- Lead sponsor
- Mayo Clinic
- Other
- Eligibility
- 18 Years to 90 Years
- Enrollment
- 2,700 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2020 – 2021
- U.S. locations
- 3
- States / cities
- Scottsdale, Arizona • Jacksonville, Florida • Rochester, Minnesota
- Conditions
- Macular Degeneration
- Interventions
- Omega-3 fatty acid
- Dietary Supplement
- Lead sponsor
- Wills Eye
- Other
- Eligibility
- 55 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2012 – 2014
- U.S. locations
- 4
- States / cities
- Cherry Hill, New Jersey • Bethlehem, Pennsylvania • Huntingdon Valley, Pennsylvania + 1 more
- Conditions
- Zinc Deficiency
- Interventions
- Acclimation, Dietary zinc depletion, Dietary zinc repletion
- Other
- Lead sponsor
- University of Florida
- Other
- Eligibility
- 21 Years to 35 Years · Male only
- Enrollment
- 10 participants
- Healthy volunteers
- Accepts healthy volunteers
- Timeline
- 2009 – 2010
- U.S. locations
- 1
- States / cities
- Gainesville, Florida
- Conditions
- HIV
- Interventions
- Zinc and SAMe
- Dietary Supplement
- Lead sponsor
- Emory University
- Other
- Eligibility
- 21 Years and older
- Enrollment
- 30 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2013 – 2018
- U.S. locations
- 2
- States / cities
- Atlanta, Georgia • Decatur, Georgia