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Showing 1–24 of 31 matching trials from the live ClinicalTrials.gov search.
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Terminated Phase 1 Interventional

Gene Therapy and Radioactive Iodine in Treating Patients With Locally Recurrent Prostate Cancer That Did Not Respond to Radiation Therapy

NCT00788307
View directory record Official record
Conditions
Prostate Cancer
Interventions
Ad5-CMV-NIS, Liothyronine Sodium, Reverse Transcriptase Polymerase Chain Reaction, laboratory biomarker analysis, Iodine I 131, Iodine I 123
Biological · Drug · Genetic + 2 more
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years · Male only
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 21, 2026 · Synced Sep 24, 2026, 4:53 AM EDT
Terminated Not applicable Interventional Results available

Combined Levothyroxine/Liothyronine Supplementation in Hypothyroid Patients With Brain Tumors

NCT00488644
View directory record Official record
Conditions
Hypothyroidism, Brain Tumor
Interventions
Levothyroxine, Liothyronine
Drug
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 23, 2013 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 2 Interventional Results available

A Phase II Trial of Valproic Acid in Patients With Advanced Thyroid Cancers of Follicular Cell Origin

NCT01182285
View directory record Official record
Conditions
Thyroid Neoplasm
Interventions
Valproic Acid, Liothyronine Sodium
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 15, 2018 · Synced Sep 24, 2026, 4:53 AM EDT
Recruiting Phase 2Phase 3 Interventional

Novel Approaches to the Treatment of Hypothyroidism

NCT06731764
View directory record Official record
Conditions
Hypothyroidism
Interventions
Levothyroxine, Levothyroxine/Liothyronine once daily, Levothyroxine/Liothyronine twice daily
Drug
Lead sponsor
UConn Health
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Farmington, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Sep 24, 2026, 4:53 AM 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 8, 2021 · Synced Sep 24, 2026, 4:53 AM EDT
Active, not recruiting Phase 2 Interventional

131I-Omburtamab, in Recurrent Medulloblastoma and Ependymoma

NCT04743661
View directory record Official record
Conditions
Recurrent Medulloblastoma, Recurrent Ependymoma
Interventions
Irinotecan, Temozolomide, Bevacizumab, Omburtamab I-131, Liothyronine, SSKI, Dexamethasone, Antipyretic, Antihistamine, anti-emetics
Drug
Lead sponsor
Pediatric Brain Tumor Consortium
Network
Eligibility
Up to 21 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
3
States / cities
Los Angeles, California • New York, New York • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Developing Oral LT3 Therapy for Heart Failure - HFrEF

NCT04112316
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Dec 23, 2024 · Synced Sep 24, 2026, 4:53 AM 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 18, 2018 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1 Interventional

Convection-Enhanced Delivery of 124I-Omburtamab for Patients With Non-Progressive Diffuse Pontine Gliomas Previously Treated With External Beam Radiation Therapy

NCT01502917
View directory record Official record
Conditions
Brain Cancer, Brain Stem Glioma
Interventions
Radioactive iodine-labeled monoclonal antibody omburtamab, External Beam Radiotherapy
Drug · Radiation
Lead sponsor
Y-mAbs Therapeutics
Industry
Eligibility
2 Years to 21 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 18, 2023 · Synced Sep 24, 2026, 4:53 AM EDT
Recruiting Phase 1Phase 2 Interventional

Liothyronine in Combination With BIT Regimen for Medulloblastoma With or Without Minimal Residual Disease

NCT07346157
View directory record Official record
Conditions
Medulloblastoma, Medulloblastoma, Childhood, Medulloblastoma Recurrent
Interventions
Liothyronine (L-T3), Bevacizumab, Irinotecan, Temozolomide (TMZ)
Drug
Lead sponsor
Sabine Mueller, MD, PhD
Other
Eligibility
1 Year to 25 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
2
States / cities
San Francisco, California • Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 24, 2026, 4:53 AM EDT
Not yet recruiting Phase 2 Interventional

T4/T3 Therapy in Hypothyroidism

NCT07424183
View directory record Official record
Conditions
Hypothyroidism Primary
Interventions
Liothyronine (L-T3), Levothyroxine Sodium (LT4) Tablets, Liothyronine (LT3) placebo
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 70 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Sep 24, 2026, 4:53 AM EDT
Active, not recruiting Phase 2 Interventional

Treatment of ARDS With Instilled T3

NCT04115514
View directory record Official record
Conditions
ARDS, Human, Lung, Wet, Thyroid, Pulmonary Edema, Lung Inflammation
Interventions
Liothyronine Sodium (T3+0.9% sodium chloride) modified formulation specifically for airway instillation., Non-intervention
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
2
States / cities
Edina, Minnesota • Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 6, 2026 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Developing Oral LT3 Therapy for Heart Failure - HFpEF

NCT04111536
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jan 7, 2025 · Synced Sep 24, 2026, 4:53 AM 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 22, 2015 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 3 Interventional Results available

Liothyronine (T3) for Bipolar Depression

NCT00790738
View directory record Official record
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
Source: ClinicalTrials.gov public record
Updated Jul 1, 2015 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 3 Interventional

Study of Triostat in Infants During Heart Surgery

NCT00027417
View directory record Official record
Conditions
Heart Defects, Congenital
Interventions
Liothyronine sodium/triiodothyronine, Cardiopulmonary bypass and cardiac surgery
Drug · Procedure
Lead sponsor
Michael Portman
Other
Eligibility
Up to 2 Years
Enrollment
195 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 4, 2013 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Liothyronine Sodium Tablets (50 Mcg) to Cytomel® Tablets (50 Mcg)

NCT00978055
View directory record Official record
Conditions
Healthy
Interventions
1: Liothyronine Sodium Tablets, 2: Cytomel® Tablets
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Sep 15, 2009 · Synced Sep 24, 2026, 4:53 AM 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 5, 2017 · Synced Sep 24, 2026, 4:53 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Desiccated Thyroid Extract Versus Synthetic T3/T4 Combination (ThyrolarTM) Versus L-T4 Alone in the Therapy of Primary Hypothyroidism With Special Attention to the Gene Polymorphism

NCT02317926
View directory record Official record
Conditions
Hypothyroidism
Interventions
Levothyroxine, Levothyroxine Plus Liothyronine, Desiccated Thyroid Extract
Drug
Lead sponsor
Walter Reed National Military Medical Center
Federal
Eligibility
18 Years to 65 Years
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2015
U.S. locations
1
States / cities
Besthesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 5, 2015 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1 Interventional

Open-label Study of Liothyronine in MS

NCT02506751
View directory record Official record
Conditions
Multiple Sclerosis, Relapsing-Remitting, Multiple Sclerosis, Secondary Progressive, Multiple Sclerosis, Primary Progressive
Interventions
liothyronine
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 58 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 11, 2018 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 3 Interventional

Precision Medicine Approach for Early Dementia & Mild Cognitive Impairment

NCT05894954
View directory record Official record
Conditions
Mild Cognitive Impairment, Dementia, Mild
Interventions
Precision Medicine Approach, Hormones and Medications tailored to lab tests, combined with devices that support stress management and brain exercises, Standard-of-Care, Lifestyle including diet, exercise, stress management
Dietary Supplement · Combination Product · Behavioral
Lead sponsor
Alzheimer's Prevention and Reversal Project, Inc.
Other
Eligibility
45 Years to 76 Years
Enrollment
73 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
6
States / cities
Folsom, California • San Rafael, California • Walnut Creek, California + 3 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Sep 24, 2026, 4:53 AM 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 21, 2007 · Synced Sep 24, 2026, 4:53 AM EDT
Completed Phase 1 Interventional

Azacitidine to Restore Thyroid Function in Patients With Persistent or Metastatic Thyroid Cancer

NCT00004062
View directory record Official record
Conditions
Head and Neck Cancer
Interventions
azacitidine, liothyronine sodium, iodine I 131
Drug · Radiation
Lead sponsor
Lucille P. Markey Cancer Center at University of Kentucky
Other
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2006
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 18, 2013 · Synced Sep 24, 2026, 4:53 AM EDT
Terminated Phase 2 Interventional Results available

Study of Euthyroid Hypothyroxinemia in Metastatic Breast Carcinoma

NCT03787303
View directory record Official record
Conditions
Metastatic Breast Cancer, Thyroid Dysfunction
Interventions
Triiodothyronine (T3)
Drug
Lead sponsor
Aultman Health Foundation
Other
Eligibility
18 Years to 105 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Canton, Ohio
Source: ClinicalTrials.gov public record
Updated May 12, 2022 · Synced Sep 24, 2026, 4:53 AM EDT