Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Sep 25, 2026, 2:00 AM EDT

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Showing 1–19 of 19 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Conditions
Multiple Sclerosis
Interventions
Liothyronine sodium, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Portland, Oregon
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Study of Thyroid Hormones in Prematures

NCT02103998
Conditions
Transient Hypothyroxinemia of Prematurity (THOP)
Interventions
thryoid hormone T4 + oral potassium iodide (KI) for 42 days, D5W - 5% dextrose water
Drug
Lead sponsor
New York Medical College
Other
Eligibility
1 Hour to 24 Hours
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
1
States / cities
Valhalla, New York
Completed Not applicable Interventional Results available

Treatment Trial of Subclinical Hypothyroidism in Down Syndrome

NCT01832753
Conditions
Down Syndrome, Subclinical Hypothyroidism
Interventions
Levothyroxine
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 20 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Philadelphia, Pennsylvania
Completed Phase 3 Interventional Results available

Liothyronine (T3) for Bipolar Depression

NCT00790738
Conditions
Depression, Bipolar Disorder
Interventions
Liothyronine (T3), placebo
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Glen Oaks, New York
Conditions
Depression
Interventions
T3
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 64 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Completed Phase 2 Interventional Results available

Energy Metabolism in Thyroidectomized Patients

NCT04782856
Conditions
Thyroid Goiter, Hypothyroidism, Thyroid Cancer
Interventions
Levothyroxine, Liothyronine, Placebo
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 89 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Richmond, Virginia
Conditions
Nonalcoholic Steatohepatitis, Liver Fibrosis
Interventions
Synthroid, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 75 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2029
U.S. locations
1
States / cities
Columbia, Missouri
Conditions
Hypothyroidism
Interventions
Levothyroxine Pill, Placebo
Drug
Lead sponsor
Spyridoula Maraka
Other
Eligibility
65 Years and older
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2027 – 2031
U.S. locations
3
States / cities
Little Rock, Arkansas • Gainesville, Florida • Rochester, Minnesota
Conditions
Systemic Lupus Erythematosus
Interventions
Levothyroxine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 45 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011
U.S. locations
1
States / cities
Baltimore, Maryland
Conditions
Congenital Heart Defects
Interventions
Triostat, Placebo
Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
Up to 5 Months
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
3
States / cities
Los Angeles, California • Palo Alto, California • Seattle, Washington
Completed Phase 1Phase 2 Interventional Results available

Developing Oral LT3 Therapy for Heart Failure - HFpEF

NCT04111536
Conditions
Heart Failure With Preserved Ejection Fraction, Low Triiodothyronine Syndrome
Interventions
liothyronine, Placebo
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Phase 1Phase 2 Interventional Results available

Developing Oral LT3 Therapy for Heart Failure - HFrEF

NCT04112316
Conditions
Heart Failure With Reduced Ejection Fraction (HFrEF), Low T3 Syndrome
Interventions
Liothyronine, Placebo
Drug · Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Completed Phase 3 Interventional Results available

Intravenous Thyroxine for Heart-Eligible Organ Donors

NCT04415658
Conditions
Brain Death, Heart Failure
Interventions
Thyroxine, Saline
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
14 Years to 55 Years
Enrollment
838 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
14
States / cities
Phoenix, Arizona • San Diego, California • Denver, Colorado + 11 more
Completed Phase 2Phase 3 Interventional Results available

Early Levothyroxine Post Radioactive Iodine

NCT01950260
Conditions
Graves' Disease
Interventions
Levothyroxine, Placebo
Drug · Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 70 Years
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Rochester, Minnesota
Conditions
Heart Transplant Failure, Heart Transplant Infection
Interventions
Levothyroxine, Normal saline
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
San Francisco, California
Completed Not applicable Interventional Results available

Study of T3 for the Treatment of Fibromyalgia

NCT00903877
Conditions
Fibromyalgia
Interventions
T3
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 50 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
1
States / cities
Stanford, California
Conditions
Major Depression
Interventions
Triiodothyronine, Placebo, Sertraline
Drug · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years to 60 Years
Enrollment
153 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2003
U.S. locations
1
States / cities
Atlanta, Georgia
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Thyroid Therapy for Mild Thyroid Deficiency in Pregnancy

NCT00388297
Conditions
Subclinical Hypothyroidism, Hypothyroxinemia, Pregnancy
Interventions
Levothyroxine, Placebo for Levothyroxine
Drug
Lead sponsor
The George Washington University Biostatistics Center
Other
Eligibility
Female only
Enrollment
1,203 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2015
U.S. locations
14
States / cities
Birmingham, Alabama • Chicago, Illinois • Detroit, Michigan + 11 more
Conditions
Subclinical Hypothyroidism
Interventions
Levothyroxine, Placebo
Drug · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
North Little Rock, Arkansas