Levothyroxine

Generic Name
Levothyroxine
Brand Names
Eltroxin, Ermeza, Euthyrox, Levo-T, Levothroid, Levoxyl, Np Thyroid, Synthroid, Thyquidity, Tirosint, Unithroid
Drug Type
Small Molecule
Chemical Formula
C15H11I4NO4
CAS Number
51-48-9
Unique Ingredient Identifier
Q51BO43MG4
Background

Levothyroxine is a synthetically produced form of thyroxine, a major endogenous hormone secreted by the thyroid gland. Also known as L-thyroxine or the brand name product Synthroid, levothyroxine is used primarily to treat hypothyroidism, a condition where the thyroid gland is no longer able to produce sufficient quantities of the thyroid hormones T (tetraio...

Indication

Levothyroxine is indicated as replacement therapy in primary (thyroidal), secondary (pituitary) and tertiary (hypothalamic) congenital or acquired hypothyroidism. It is also indicated as an adjunct to surgery and radioiodine therapy in the management of thyrotropin-dependent well-differentiated thyroid cancer.

Associated Conditions
Edematous Fibrosclerotic Panniculopathy (Cellulite), Hypothyroidism, Localized Adiposity, Myxedema coma, Euthyroid Goitre, Thyrotropin dependent Well-Differentiated Thyroid Cancer
Associated Therapies
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Study to Evaluate the Effect of IW-3718 on the Pharmacokinetics of Oral Contraceptive, Levothyroxine, Glyburide, and Digoxin in Healthy Adult Volunteers

First Posted Date
2019-02-27
Last Posted Date
2019-07-29
Lead Sponsor
Ironwood Pharmaceuticals, Inc.
Target Recruit Count
87
Registration Number
NCT03856970
Locations
🇺🇸

PPD, Austin, Texas, United States

Thyroxin in Subclinical Hypothyroidism

Not Applicable
Completed
Conditions
Interventions
First Posted Date
2018-10-19
Last Posted Date
2018-10-29
Lead Sponsor
Hawler Medical University
Target Recruit Count
168
Registration Number
NCT03712683

Identification of Non-responders to Levothyroxine Therapy

First Posted Date
2018-08-13
Last Posted Date
2021-03-17
Lead Sponsor
Oslo University Hospital
Target Recruit Count
69
Registration Number
NCT03627611
Locations
🇳🇴

Oslo University Hospital, Oslo, Norway

Efficacy of Low Dose Levothyroxine During Pregnancy

Phase 3
Completed
Conditions
Interventions
First Posted Date
2018-01-05
Last Posted Date
2021-10-07
Lead Sponsor
Ain Shams University
Target Recruit Count
180
Registration Number
NCT03391154
Locations
🇪🇬

AinShams university maternity hospital, Cairo, Abbassya, Egypt

Thyroxine Treatment in Premature Infants With Intraventricular Hemorrhage

First Posted Date
2018-01-04
Last Posted Date
2022-07-08
Lead Sponsor
Albert Einstein College of Medicine
Registration Number
NCT03390530
Locations
🇺🇸

Praveen Ballabh, Bronx, New York, United States

The Role of Immunomodulatory Treatment in Success of ICSI in Patients With Autoimmune Thyroiditis

First Posted Date
2017-09-21
Last Posted Date
2020-06-22
Lead Sponsor
Aljazeera Hospital
Target Recruit Count
100
Registration Number
NCT03289403
Locations
🇪🇬

Aljazeera (Al Gazeera) hospital, Giza, Egypt

Levothyroxine for Non-Alcoholic Fatty Liver Disease (NAFLD)

First Posted Date
2017-09-13
Last Posted Date
2017-09-14
Lead Sponsor
Duke-NUS Graduate Medical School
Target Recruit Count
29
Registration Number
NCT03281083

A Pilot Feasibility Trial of Thyroid Hormone Replacement in Dialysis Patients

First Posted Date
2017-06-19
Last Posted Date
2021-06-14
Lead Sponsor
University of California, Irvine
Target Recruit Count
96
Registration Number
NCT03191188
Locations
🇺🇸

University Dialysis Center of Orange, Orange, California, United States

Wound Complications in Head and Neck Surgery

First Posted Date
2017-05-01
Last Posted Date
2020-06-01
Lead Sponsor
University of Michigan
Target Recruit Count
51
Registration Number
NCT03134976
Locations
🇺🇸

University of Michigan, Ann Arbor, Michigan, United States

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

Not Applicable
Completed
Conditions
Interventions
First Posted Date
2017-04-14
Last Posted Date
2018-03-29
Lead Sponsor
Medstar Health Research Institute
Target Recruit Count
60
Registration Number
NCT03115515
Locations
🇺🇸

Medstar Washington Hospital Center, Washington, District of Columbia, United States

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