Thyroxine: all 114 studies that test it
Page 1 of 2. Open to participants first (20), then studies with results posted, then the rest; newest registration first within each.
- Thyroxine Supplementation in Small for Gestational Age (SGA) Infants With Birth Weight <1500g and TSH 6-20 mIU/mlNot yet recruitingNCT07625722Not applicable
- Impact of Medically Supervised Performance-Enhancing Substances (PES) on Elite AthletesEnrolling by invitationNCT07568574Not applicable
- Levothyroxine Treatment on Cardiac Function in Children With Subclinical HypothyroidismRecruitingNCT07393165Not applicable
- Thyroid Hormone Replacement After Coronary Artery Bypass Grafting for Patients With Subclinical HypothyroidismRecruitingNCT07380854Not applicable
- Levothyroxine as Adjuvant to a Hypocaloric Diet for the Treatment of Obesity.RecruitingNCT07332273Phase 3
- Desiccated Thyroid Extract Combined With Levothyroxine for TSH Suppression Therapy in DTCNot yet recruitingNCT07239674Phase 3
- A Clinical Trial of Adjunctive Thyroxine for Avolition in SchizophreniaNot yet recruitingNCT07011953Early Phase 1
- LIGHT Trial: Levothyroxine for Gestational Hypothyroidism in Recurrent Pregnancy LossNot yet recruitingNCT06999278Phase 3
- Necessity of TSH Suppression Therapy in Active Surveillance for Thyroid Cancer Patients.Not yet recruitingNCT06971965Not applicable
- COACH - Comparing Two Different Methods to Suppress Thyrotropin in Patients With Advanced Thyroid CancerNot yet recruitingNCT06790589Phase 2
- Levothyroxine Intervention in Pregnant Women with TSH （2.5 MIU/L-upper Limit of Reference Range） and Negative Thyroid Peroxidase AntibodyNot yet recruitingNCT06653907Phase 4
- Effect of HCQ Combined With LT4 on LBR in Euthyroid Women With URPL and TPO-AbRecruitingNCT06652113Not applicable
- Levothyroxine Supplementation for Heart Transplant RecipientsRecruitingNCT06428097Phase 1
- Efficacy of Thyroid Hormone Replacement for Secondary Hypothyroidism Following Intracerebral HemorrhageRecruitingNCT06353555Not applicable
- Thyroxine Replacement Therapy After Lobectomy for Low-risk Papillary Thyroid CarcinomaRecruitingNCT06087068Phase 2
- Dosing of LT4 in Older IndividualsRecruitingNCT06073665Phase 4
- Best Treatment for Women With Both (Polycystic Ovary Syndrome) PCOS and Subclinical HypothyroidismRecruitingNCT06041204Not applicable
- Thyroid Hormone for Treatment of Nonalcoholic Steatohepatitis in VeteransRecruitingNCT05526144Phase 2
- TSH Suppression During Radiotherapy on Thyroid Site to Prevent Iatrogenic Hypothyroidism in Pediatric Cancer PatientsRecruitingNCT05316922Phase 3
- A Randomized Controlled Trial of Thyroid Hormone Supplementation in Hemodialysis PatientsRecruitingNCT03977207Not applicable
- Role of Levothyroxine Supplementation in Delayed Recovery Following Cardiac SurgeryCompletedNCT06660823Phase 3Results posted
- Study of XP-8121 For the Treatment of Adult Subjects With HypothyroidismCompletedNCT05823012Phase 2Results posted
- Use of Tirosint®-SOL or Tablet Formulations of Levothyroxine in Pediatric Patients With Congenital Hypothyroidism (CH)TerminatedNCT05228184Phase 4Results posted
- Use of Liquid Stable Levothyroxine in Trisomy 21 Pediatric PatientsTerminatedNCT04747275Phase 4Results posted
- Intravenous Thyroxine for Heart-Eligible Organ DonorsCompletedNCT04415658Phase 3Results posted
- Discontinuation of Levothyroxine Therapy for Patients With Subclinical HypothyroidismCompletedNCT04288115Phase 4Results posted
- Bioequivalence of Two Formulations of Levothyroxine Sodium 200 Micrograms (mcg) Under Tablet FormCompletedNCT04037748Phase 1Results posted
- Levothyroxine Sodium in Thyroidectomized Patients Taking Proton Pump InhibitorsCompletedNCT03094416Phase 4Results posted
- Levothyroxine Replacement With Liquid Gel Capsules vs Tablets Post-thyroidectomyTerminatedNCT02946918Phase 4Results posted
- Mechanistic Study of Subclinical Hypothyroidism In the ElderlyCompletedNCT02399475Not applicableResults posted
- Targeted Levothyroxine Dosing in Infants With Congenital HypothyroidismCompletedNCT02374593Not applicableResults posted
- Early Levothyroxine Post Radioactive IodineCompletedNCT01950260Phase 2/3Results posted
- Neurocognitive and Metabolic Effects of Mild HypothyroidismCompletedNCT00565864Phase 4Results posted
- Combined Levothyroxine/Liothyronine Supplementation in Hypothyroid Patients With Brain TumorsTerminatedNCT00488644Not applicableResults posted
- Generic vs. Name-Brand LevothyroxineCompletedNCT00403390Not applicableResults posted
- Thyroid Therapy for Mild Thyroid Deficiency in PregnancyCompletedNCT00388297Phase 3Results posted
- Thyroid Hormone Dose Adjustment in PregnancyCompletedNCT00230802Not applicableResults posted
- Thyroid and Glucose and Energy MetabolismCompletedNCT00106119Phase 2Results posted
- Levothyroxine Dosing in Neonatal Congenital HypothyroidismCompletedNCT07754370Phase 4
- A Study of Levothyroxine and Enlicitide Decanoate (MK-0616) in Healthy Adult Participants (MK-0616-028)CompletedNCT06625814Phase 1
- Levothyroxine-sodium Bioequivalence Trial With Oral Single Dose AdministrationCompletedNCT06547242Phase 1
- A Study to Assess the Safety and Efficacy of Oral Armour Thyroid Compared to Synthetic T4 for the Treatment of Primary Hypothyroidism in Adult ParticipantsActive, not recruitingNCT06345339Phase 2/3
- Influence of Initial Levothyroxine Dose on Neurodevelopmental and Growth Outcomes in Congenital HypothyroidismCompletedNCT05371262Phase 4
- Type 2 Deiodinase Gene Polymorphism and the Treatment of Hypothyroidism Caused by Thyroidectomy in Thyroid Cancer Patients.Status unknownNCT05247476Phase 4
- Individual Dosing of Levothyroxine After ThyroidectomyStatus unknownNCT05240911Not applicable
- BE of Euthyrox® Tablets (Merck Nantong Versus Merck Darmstadt Sites)CompletedNCT05174000Phase 1
- Thyroid Replacement Therapy in Patients With Subclinical HypothyroidismStatus unknownNCT04953195Phase 4
- Comparison of Levothyroxine Formulation in Hypothyroid Patients With Enteral FeedingTerminatedNCT04878614Phase 4
- Study of Resistance to Thyroid Hormone After Long-term Exposure in People With Thyroid CancerWithdrawnNCT04868045Phase 1
- Thyroid and Adrenocortical Hormone Replacement in Organ DonorsCompletedNCT04528797Not applicable
- The Effect of Thyroid Hormone Therapy on Muscle Mass and Function in Older Adults With Subclinical HypothyroidismCompletedNCT04354896Phase 4
- Can Levothyroxine Treatment Reduce the Development of Cardio-metabolic Disorder in Subclinical Hypothyroidism?Status unknownNCT04178928Phase 1/2
- Low Dose Euthyrox in Treatments of Paraquat Intoxication.Status unknownNCT04132622Phase 4
- Supplementation of Thyroid Hormone for TSH Control in Patients With Chronic Kidney Disease Without TRR.CompletedNCT03898622Phase 3
- Study to Evaluate the Effect of IW-3718 on the Pharmacokinetics of Oral Contraceptive, Levothyroxine, Glyburide, and Digoxin in Healthy Adult VolunteersCompletedNCT03856970Phase 1
- Thyroxin in Subclinical HypothyroidismCompletedNCT03712683Not applicable
- Thyroid Hormone Replacement for Subclinical Hypothyroidism and Dyslipidemia in ASCVD (ThyroHeart-Lipid Study)Status unknownNCT03606824Not applicable
- Efficacy of Low Dose Levothyroxine During PregnancyCompletedNCT03391154Phase 3
- Thyroxine Treatment in Premature Infants With Intraventricular HemorrhageWithdrawnNCT03390530Phase 3
- Levothyroxine for Non-Alcoholic Fatty Liver Disease (NAFLD)TerminatedNCT03281083Phase 2
- A Pilot Feasibility Trial of Thyroid Hormone Replacement in Dialysis PatientsStatus unknownNCT03191188Not applicable
- Safety and Efficacy of Empiric Levothyroxine (LT4) Dose Increase Versus Individualized LT4 Dose Increase in Hypothyroid Women During PregnancyCompletedNCT03115515Not applicable
- Recurrent Pregnancy Loss and Thyroid DiseaseStatus unknownNCT03106935Early Phase 1
- Thyroid Hormone Replacement for Subclinical Hypothyroidism and Chronic Heart Failure (ThyroHeart-CHF)Status unknownNCT03096613Phase 4
- The Effects of T4 Versus T4/T3 on Psychological Distress After Total Thyroidectomy in Thyroid Cancer PatientsCompletedNCT03024151Not applicable
- A Trial Investigating the Influence of Oral Semaglutide on the Pharmacokinetics of Levothyroxine and the Influence of Co-administered Tablets on the Pharmacokinetics of Semaglutide Administered Orally in Healthy Subjects.CompletedNCT02920385Phase 1
- Randomized Crossover Trial for the Evaluation of the Possible Effects in the Intestine of Two Different Pharmaceutical Forms of L - Thyroxine in Patients With Primary Acquired HypothyroidismStatus unknownNCT02917863Phase 4
- The TRUST Trial - CardioVascular Imaging ECHOCompletedNCT02832960Phase 4
- The TRUST Study - CardioVascular Imaging IMTCompletedNCT02832934Phase 4
- Mean Percentage of Levothyroxine Dosage Increase in Patients With Hypothyroidism Started on Enteral FeedingWithdrawnNCT02577367Phase 4
- Levothyroxine Treatment for Subclinical Hypothyroidism After Head and Neck SurgeryWithdrawnNCT02548715Phase 2/3
- Thyroid Hormone Replacement for Hypothyroidism and Acute Myocardial Infarction(ThyroHeart-AMI)Status unknownNCT02512978Phase 4
- The Effect of Administration of Small Doses of Thyroxine on Glucose and Lipid Metabolism, in Type 2 Diabetes Mellitus.CompletedNCT02509858Not applicable
- Effect of Thyroid Hormone Replacement on Fatigability in Untreated Older Adults With Subclinical HypothyroidismCompletedNCT02500342Phase 4
- Novel Biomarkers and Skeletal Outcomes Associated With Subclinical Thyroid DysfunctionCompletedNCT02491008Phase 4
- Sorafenib Drug Drug Interaction Study in Healthy Male SubjectsCompletedNCT02332031Phase 1
- The Role of Levothyroxine on Goiter With Atypia of Undetermined SignificanceWithdrawnNCT02329379Phase 4
- 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 PolymorphismStatus unknownNCT02317926Not applicable
- Evaluation of the Efficacy and Safety of Levothyroxine in Brain Death Organ Donors: a Randomized Controled TrialTerminatedNCT02211053Phase 4
- Effects of Levothyroxine Treatment on Hemodynamic and Renal Functions in Subclinical HypothyroidismWithdrawnNCT02186405Phase 4
- Study of Thyroid Hormones in PrematuresWithdrawnNCT02103998Phase 3
- Effects of Levothyroxine on Endothelial Function of Patients With Subclinical HypothyroidismCompletedNCT02090907Phase 2/3
- Thyroid Hormones Treatment in Asthma ExacerbationStatus unknownNCT02086799Not applicable
- The TRUST Study - Depression SubstudyCompletedNCT01853579Phase 4
- Effects of L-thyroxine Replacement on Serum Lipid and Atherosclerosis in HypothyroidismStatus unknownNCT01848171Phase 4
- Method of Endogenous TSH Stimulation in the Follow-up of Differentiated Thyroid CancerCompletedNCT01840332Not applicable
- Effect of L-Thyroxine on Lipid Profiles and Atherosclerosis in Subclinical HypothyroidismStatus unknownNCT01831869Phase 4
- Desiccated Thyroid Extract and Levothyroxine for Hypothyroidism TreatmentStatus unknownNCT01739972Not applicable
- Thyroid Hormone Replacement for Subclinical HypothyroidismCompletedNCT01660126Phase 4
- Study of Optimal Replacement of Thyroxine in the ElderlyCompletedNCT01647750Phase 4
- Levothyroxine for Children With Euthyroid Sick SyndromeCompletedNCT01631305Phase 4
- Bioequivalence of Two Levothyroxine Tablet Formulations in Healthy Indian VolunteersCompletedNCT01536678Phase 4
- Supraphysiological Doses of Levothyroxine as Adjunctive Therapy in Bipolar DepressionCompletedNCT01528839Phase 2/3
- Thyroxin Treatment in Sub Clinical Hypothyroidism, on the Apnea Hypopnea Index Score, Lipids and Highly Sensitive CRPStatus unknownNCT01486667Phase 3
- Bioavailability Investigations of Thyronajod Mite Tablets of Dosage Strengths 50 μg Levothyrox-ine/75 μg Iodine, and 100 μg Levothyroxine/75 μg Iodine vs. a Levothyroxine Drinking-Solution: A Randomised Cross Over Study in Healthy Male Individuals. Currently: 100 μg/ 75 μg TabletsCompletedNCT01465646Phase 1
- Bioavailability Investigations of Thyronajod Mite Tablets of Dosage Strengths 50 μg Levothyrox-ine/75 μg Iodine, and 100 μg Levothyroxine/75 μg Iodine vs. a Levothyroxine Drinking-Solution: A Randomised Cross Over Study in Healthy Male Individuals. Currently: 50 μg/ 75 μg TabletsCompletedNCT01465633Phase 1
- Antithyroid Drug Treatment of Thyrotoxicosis in Young PeopleCompletedNCT01436994Phase 3
- Thyroid Study Type 2 Diabetes Mellitus (T2DM)Status unknownNCT01379170Phase 4
- L-Thyroxine Supplementation for Preterm Newborns Less Than 32 Weeks of Gestation With HypothyroxinemiaCompletedNCT01306227Phase 3
- Central Hypothyroidism, a Novel Laboratory MeasurementStatus unknownNCT01280292Not applicable