| Not Yet Recruiting | Impact of Subclinical Hypothyroidism on Liver Enzymes and Lipid Profile NCT07236697 | Assiut University | — |
| Recruiting | Levothyroxine Treatment on Cardiac Function in Children With Subclinical Hypothyroidism NCT07393165 | Tanta University | N/A |
| Unknown | Screening of Subclinical Hypothyroidism in Pregnant Women NCT05801822 | Sohag University | — |
| Recruiting | Thyroid Hormone Replacement After Coronary Artery Bypass Grafting for Patients With Subclinical Hypothyroidism NCT07380854 | Seoul National University Bundang Hospital | N/A |
| Unknown | Dietary Intervention With Únicla Dairy Products (DANTIAN) NCT05019118 | Cooperativas Lacteas Unidas | N/A |
| Recruiting | Best Treatment for Women With Both (Polycystic Ovary Syndrome) PCOS and Subclinical Hypothyroidism NCT06041204 | Muhamed Ahmed Abdelmoaty Muhamed Alhagrasy | N/A |
| Completed | Discontinuation of Levothyroxine Therapy for Patients With Subclinical Hypothyroidism NCT04288115 | VA Office of Research and Development | Phase 4 |
| Recruiting | Levothyroxine Treatment and IVF Outcomes in Women With Subclinical Hypothyroidism: A Target Trial Emulation NCT07257250 | Mỹ Đức Hospital | — |
| Completed | Supplementation of Thyroid Hormone for TSH Control in Patients With Chronic Kidney Disease Without TRR. NCT03898622 | Hospital Civil de Guadalajara | Phase 3 |
| Unknown | Thyroid Hormone Replacement for Subclinical Hypothyroidism and Chronic Heart Failure (ThyroHeart-CHF) NCT03096613 | Chinese Academy of Medical Sciences, Fuwai Hospital | Phase 4 |
| Completed | The Prevalence of Sub Clinical Hypothyroidism During Early Pregnancy in Pakistan NCT03036956 | Abbott | — |
| Completed | Mechanistic Study of Subclinical Hypothyroidism In the Elderly NCT02399475 | University of Pennsylvania | N/A |
| Completed | Thyroid Disorders in Malaysia: A Nationwide Multicentre Study NCT02190214 | International Islamic University Malaysia | — |
| Completed | The Effect of Thyroid Hormone Therapy on Muscle Mass and Function in Older Adults With Subclinical Hypothyroid NCT04354896 | Insel Gruppe AG, University Hospital Bern | Phase 4 |
| Completed | Thyroid Hormone Replacement for Subclinical Hypothyroidism NCT01660126 | NHS Greater Glasgow and Clyde | Phase 4 |
| Completed | NeoThyr - the Role of Mitochondria-dysfunction in Newborns of Mothers With Autoimmune Thyroid Disease NCT02061111 | Naestved Hospital | — |
| Completed | Iodine Supplementation in Obesity NCT01985204 | Swiss Federal Institute of Technology | N/A |
| Completed | Effects of Levothyroxine on Endothelial Function of Patients With Subclinical Hypothyroidism NCT02090907 | Isfahan University of Medical Sciences | Phase 2 / Phase 3 |
| Completed | The TRUST Study - Depression Substudy NCT01853579 | Insel Gruppe AG, University Hospital Bern | Phase 4 |
| Completed | Treatment Trial of Subclinical Hypothyroidism in Down Syndrome NCT01832753 | Children's Hospital of Philadelphia | N/A |
| Completed | Thyroid Screening Protocol During Pregnancy: a Multi-center Prospective Controlled Study NCT01838031 | Peking Union Medical College Hospital | N/A |
| Completed | Relation Between Subclinical Hypothyroidism and Outcome of Pregnancy NCT01335802 | Naestved Hospital | — |
| Terminated | Lipids Profile in Subclinical Hypothyroidism NCT00962221 | HaEmek Medical Center, Israel | — |
| Completed | Subclinical Hypothyroidism and Mind in the Elderly NCT00921050 | Universidad Autonoma de Nuevo Leon | Phase 2 / Phase 3 |
| Completed | Iron Deficiency Anemia Can be an Indication for Treatment of Subclinical Hypothyroidism NCT00535561 | Duzce University | Phase 1 |
| Completed | Color Flow Doppler Ultrasound in Subclinical Thyroid Dysfunction NCT00437931 | HaEmek Medical Center, Israel | — |
| Completed | Thyroid Therapy for Mild Thyroid Deficiency in Pregnancy NCT00388297 | The George Washington University Biostatistics Center | Phase 3 |
| Unknown | The Effect of Thyroid Hormone Levels in Pregnant Women on the Intelligence Quotient (IQ) of Their Children NCT00147433 | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) | — |
| Completed | The Effect of Levothyroxine on Arterial Stiffness and Lipid Profile in Patients With Subclinical Hypothyroidis NCT00498238 | Assaf-Harofeh Medical Center | N/A |