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ClinicalTrials.gov public records Last synced Oct 23, 2026, 4:45 PM EDT

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Showing 1–24 of 57 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Thyroid Hormones Clear all
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Growth Hormone and GnRH Agonist in Adolescents With Acquired Hypothyroidism

NCT00206375
View directory record Official record
Conditions
Hypothyroidism
Interventions
Growth hormone, Growth hormone treatment and puberty
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
8 Years to 17 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2011
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 30, 2020 · Synced Oct 23, 2026, 4:45 PM EDT
Terminated No phase listed Observational

Is Levothyroxine Alone Adequate Thyroid Hormone Replacement?

NCT02567877
View directory record Official record
Conditions
Postsurgical Hypothyroidism, Hypothyroidism
Interventions
thyroidectomy, levothyroxine in thyroidectomy patients
Procedure · Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 75 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 8, 2023 · Synced Oct 23, 2026, 4:45 PM EDT
Completed No phase listed Observational

Improving White Matter Integrity With Thyroid Hormone

NCT04098991
View directory record Official record
Conditions
Hypothyroidism
Interventions
Levothyroxine
Drug
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
21 Years to 60 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 10, 2020 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 3 Interventional

A New Study to Follow-up Thyroid Cancer Patients Who Participated in a Previous Study, Which Compared the Success of Destruction of the Thyroid Remnant Using Standard Treatment or Thyrogen.

NCT00295763
View directory record Official record
Conditions
Differentiated Thyroid Cancer
Interventions
Thyrogen (thyrotropin alfa for injection)
Drug
Lead sponsor
Genzyme, a Sanofi Company
Industry
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006
U.S. locations
4
States / cities
Aurora, Colorado • Baltimore, Maryland • Columbus, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 18, 2015 · Synced Oct 23, 2026, 4:45 PM EDT
Not listed Not applicable Interventional

A Pilot Feasibility Trial of Thyroid Hormone Replacement in Dialysis Patients

NCT03191188
View directory record Official record
Conditions
Thyroid Disease, Kidney Diseases, Chronic
Interventions
Levothyroxine Sodium, Placebo Oral Tablet
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 75 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Orange, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2021 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 2 Interventional

The Effect of Thyroid Hormone on Drug Elimination in Cancer Patients

NCT00080574
View directory record Official record
Conditions
Thyroid Cancer
Interventions
Skin Biopsy
Procedure
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 23, 2026, 4:45 PM EDT
Not listed No phase listed Observational

The Effect of Thyroid Hormone Levels in Pregnant Women on the Intelligence Quotient (IQ) of Their Children

NCT00147433
View directory record Official record
Conditions
Child Development Disorders, Pregnancy, Subclinical Hypothyroidism
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
0 Years and older · Female only
Enrollment
5,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
1
States / cities
Scarborough, Maine
Source: ClinicalTrials.gov public record
Updated Mar 31, 2006 · Synced Oct 23, 2026, 4:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Thyroid and Fat Tissue Metabolism

NCT00312715
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years and older
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 6, 2017 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Comparison of Patch vs. Pill Estrogen Therapy on Testosterone Levels and Thyroid Tests in Menopausal Women

NCT00224094
View directory record Official record
Conditions
Menopause
Interventions
Premarin® (oral) vs. Alora® (transdermal)
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
42 Years to 70 Years · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2012 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Not applicable Interventional

Metabolism and Thyroid Hormone Changes During Exposure to Cold Temperatures

NCT00521729
View directory record Official record
Conditions
Obesity
Interventions
Exposure to Cold Temperature
Procedure
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy of Empiric Levothyroxine (LT4) Dose Increase Versus Individualized LT4 Dose Increase in Hypothyroid Women During Pregnancy

NCT03115515
View directory record Official record
Conditions
Pregnancy Related, Thyroid
Interventions
levothyroxine
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 1 Interventional Results available

Thyroid Hormone for Remyelination in Multiple Sclerosis (MS): A Safety and Dose Finding Study

NCT02760056
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Nov 19, 2018 · Synced Oct 23, 2026, 4:45 PM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Study of Thyroid Hormones in Prematures

NCT02103998
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Apr 24, 2019 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 2 Interventional Results available

Thyroid Hormone to Induce Non-Insulin Mediated Glucose Disposal in People With Insulin Receptor Mutations

NCT02457897
View directory record Official record
Conditions
Insulin Resistance, Diabetes Mellitus, Abnormal Glucose Metabolism
Interventions
Liothyronine
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
12 Years to 65 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 5, 2019 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 2 Interventional Results available

Thyroid and Glucose and Energy Metabolism

NCT00106119
View directory record Official record
Conditions
Thyroid Diseases
Interventions
Liothyronine and Levothyroxine
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 65 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 23, 2015 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Phase 2 Interventional

A Study Evaluation the Safety and Efficacy of Hormone Replacement Therapy With North Star Compared to Levothyroxine in Patients With Primary Hypothyroidism

NCT05712421
View directory record Official record
Conditions
Hypothyroidism
Interventions
North Star, Levothyroxine
Drug
Lead sponsor
Neuvosyn Laboratories, LLC
Industry
Eligibility
18 Years to 75 Years
Enrollment
303 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
31
States / cities
Birmingham, Alabama • Canoga Park, California • Greenbrae, California + 23 more
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Oct 23, 2026, 4:45 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Endocrine and Psychological Evaluation of Adopted Children

NCT00368043
View directory record Official record
Conditions
Psychosocial Adjustment
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
10 Months to 4 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 23, 2026, 4:45 PM EDT
Terminated Not applicable Interventional

Comparison of I-124 and I-131 Radiopharmacokinetics in DTC Patients With Thyroid Hormone Withdrawal

NCT02947399
View directory record Official record
Conditions
Thyroid Cancer
Interventions
Radioactive Iodine 124
Radiation
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Nov 1, 2018 · Synced Oct 23, 2026, 4:45 PM EDT
Recruiting Not applicable Interventional

Optimizing Care for Older Adults Through Thyroid Hormone Deprescribing

NCT06629272
View directory record Official record
Conditions
Hypothyroidism
Interventions
D-THIO (Deprescribing Thyroid Hormone In Older Adults), Enhanced usual care
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
65 Years and older
Enrollment
900 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
3
States / cities
San Francisco, California • Ann Arbor, Michigan • Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Sep 4, 2026 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Not applicable Interventional Results available

Mechanistic Study of Subclinical Hypothyroidism In the Elderly

NCT02399475
View directory record Official record
Conditions
Subclinical Hypothyroidism
Interventions
Levothyroxine, Liothyronine, Thyrotropin-Releasing Hormone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
70 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 9, 2021 · Synced Oct 23, 2026, 4:45 PM EDT
Recruiting Phase 2 Interventional

A Study to Assess the Efficacy, Safety, and Tolerability of IMVT-1402 as Treatment for Adult Participants With Graves' Disease

NCT07018323
View directory record Official record
Conditions
Graves' Disease
Interventions
IMVT-1402, Placebo
Drug
Lead sponsor
Immunovant Sciences GmbH
Industry
Eligibility
18 Years to 75 Years
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
33
States / cities
Tucson, Arizona • Concord, California • Aurora, Colorado + 28 more
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 23, 2026, 4:45 PM EDT
Active, not recruiting No phase listed Observational

CASE 1320: RAI Uptake and Serum Prolactin in Thyroid Cancer

NCT04495985
View directory record Official record
Conditions
Thyroid Cancer
Interventions
Not listed
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Oct 23, 2026, 4:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Biochemical Brain Changes Correlated With The Antidepressant Effect Of Thyroid Hormones

NCT00562367
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Cytomel (liothyronine)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 22, 2007 · Synced Oct 23, 2026, 4:45 PM EDT
Terminated Phase 2 Interventional

A Thyroid Hormone Analog to Fight Heart Failure: Phase II Trial (DITPA)

NCT00032643
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
DITPA
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
7
States / cities
Tucson, Arizona • West Los Angeles, California • Denver, Colorado + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2013 · Synced Oct 23, 2026, 4:45 PM EDT