Drugs / Liothyronine
last change Jul 2026 re-read 2 minutes ago

Liothyronine

Small molecule

Developed for
hypothyroidism · major depressive disorder · euthyroid sick syndrome · thyroid gland disorder · acute respiratory distress syndrome · bipolar disorder · breast cancer · COVID-19
+23 more · depressive disorder · heart failure · thyroid cancer · atrial fibrillation · childhood medulloblastoma · congenital heart defects, multiple types · diabetes mellitus · fibromyalgia · glioblastoma · gliosarcoma · infectious disease with sepsis · obesity disorder · postoperative ventricular dysfunction · postsurgical hypothyroidism · primary progressive multiple sclerosis · relapsing-remitting multiple sclerosis · secondary progressive multiple sclerosis · tricuspid atresia · congenital heart disease · diastolic heart failure · multiple sclerosis · systolic heart failure · thyroid hormone metabolism, abnormal, 3
Investigated by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · Emory University · Hadassah Medical Organization · National Alliance for Research on Schizophrenia and Depression · National Cardiovascular Center Harapan Kita Hospital Indonesia · National Institute of Mental Health (NIMH)
+40 more · Northwell Health · Stanford University · University of Minnesota · University of Pennsylvania · Virginia Commonwealth University · Attikon Hospital · Aultman Health Foundation · Azienda USL Modena · CRDF Global · Cantonal Hospital Zenica · Children's Hospital and Health Center · Dalim BioTech Co., Ltd. · FDA Office of Orphan Products Development · Hormonlaboratoriet · Ipe, LLC · Jens Faber · Johns Hopkins University · M.D. Anderson Cancer Center · Mark Frye · Massachusetts General Hospital · Musli Thyropeutics Ltd. · National Cancer Institute (NCI) · National Institute on Aging (NIA) · New York State Psychiatric Institute · Oslo University Hospital · Osypka Germany · Patrice Perron · Sabine Mueller, MD, PhD · Seattle Children's Hospital · Spesialistsenteret Pilestredet Park · Stanley Medical Research Institute · Tel-Aviv Sourasky Medical Center · Theramed co. · Thomas and Jeanne Elmezzi Foundation · UConn Health · Uni-Pharma Kleon Tsetis Pharmaceutical Laboratories S.A. · University Hospital Freiburg · University of California, Los Angeles · Yonsei University · Zhongshan Hospital Xiamen University

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved US (FDA) CYTOMEL 1956-05-08 fda.gov

Trials 41 · a red edge is where a trial was stopped

PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT05017610 Oct 2021 → Oct 2022 gliosarcoma Emory University Withdrawn No outcome recorded
Phase 13 trials
Phase 1 NCT02506751 Jul 2015 → Sep 2017 primary progressive multiple sclerosis, relapsing-remitting multiple sclerosis, secondary progressive multiple sclerosis Johns Hopkins University Completed No outcome recorded
Phase 1 NCT00289367 Feb → Aug 2006 atrial fibrillation Northwell Health Completed No outcome recorded
Phase 1 NCT00004828 Dec 1994 → Dec 1997 tricuspid atresia FDA Office of Orphan Products Development Completed No outcome recorded
Phase 1/23 trials
Phase 1/2 NCT07346157 Jul 2026 → Mar 2031 expected childhood medulloblastoma Sabine Mueller, MD, PhD Not yet recruiting No outcome recorded
Phase 1/2 NCT05384847 Dec 2022 → May 2026 overdue heart failure Emory University Active not recruiting No outcome recorded
Phase 1/2 NCT03098433 Oct 2017 → Jun 2019 Virginia Commonwealth University Completed No outcome recorded
Phase 212 trials
Phase 2 NCT07424183 Jun 2026 → Jun 2027 expected hypothyroidism University of Pennsylvania Not yet recruiting No outcome recorded
Phase 2 NCT04725110 Jan 2026 → Oct 2030 COVID-19, acute respiratory distress syndrome University of Minnesota Withdrawn No outcome recorded
Phase 2 NCT05270798 May 2022 → Aug 2023 euthyroid sick syndrome, infectious disease with sepsis Cantonal Hospital Zenica Completed No outcome recorded
Phase 2 NCT04782856 Oct 2020 → Apr 2023 goiter, hypothyroidism, thyroid cancer Virginia Commonwealth University Completed No outcome recorded
Phase 2 NCT04348513 May 2020 → Apr 2021 COVID-19 Uni-Pharma Kleon Tsetis Pharmaceutical Laboratories S.A. Terminated No outcome recorded
Phase 2 NCT04115514 Mar 2020 → Oct 2026 expected acute respiratory distress syndrome, pulmonary edema, thyroid gland disorder University of Minnesota Active not recruiting No outcome recorded
Phase 2 NCT03787303 Mar 2019 → Mar 2022 breast cancer, thyroid gland disorder Aultman Health Foundation Terminated No outcome recorded
Phase 2 NCT03627611 Aug 2018 → Jun 2020 hypothyroidism Oslo University Hospital Completed No outcome recorded
Phase 2 NCT02654041 Mar 2016 → Jun 2017 glioblastoma Musli Thyropeutics Ltd. Terminated No outcome recorded
Phase 2 NCT02457897 Apr 2015 → Sep 2018 diabetes mellitus National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Completed No outcome recorded
Phase 2/32 trials
Phase 2/3 NCT06731764 Dec 2024 → Dec 2027 expected hypothyroidism UConn Health Recruiting No outcome recorded
Phase 2/3 NCT03053115 Mar 2017 → Sep 2021 hypothyroidism Azienda USL Modena Completed No outcome recorded
Phase 35 trials
Phase 3 NCT02320669 Nov 2014 → Oct 2019 congenital heart defects, multiple types Seattle Children's Hospital Completed No outcome recorded
Phase 3 NCT02521168 Jul 2013 → Oct 2014 postoperative ventricular dysfunction National Cardiovascular Center Harapan Kita Hospital Indonesia Completed No outcome recorded
Phase 3 NCT00790738 Jul 2008 → Jul 2012 bipolar disorder, depressive disorder Northwell Health Completed No outcome recorded
Phase 3 NCT00158990 Oct 2002 → Jul 2007 bipolar disorder, major depressive disorder Hadassah Medical Organization Completed No outcome recorded
Phase 3 NCT00073242 Jul 2000 → Jul 2015 obesity disorder National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Unknown No outcome recorded
Phase 46 trials
Phase 4 NCT05247476 Oct 2021 → Mar 2022 postsurgical hypothyroidism, thyroid gland papillary carcinoma Zhongshan Hospital Xiamen University Unknown No outcome recorded
Phase 4 NCT00360074 Feb 2004 → Apr 2007 hyperlipidemia, hypopituitarism, thyroid gland disorder University Hospital Freiburg Completed No outcome recorded
Phase 4 NCT00221494 Jan 2004 → Jun 2006 depressive disorder Mark Frye Withdrawn No outcome recorded
Phase 4 NCT00296686 Sep 2001 → Aug 2006 major depressive disorder New York State Psychiatric Institute Terminated No outcome recorded
Phase 4 NCT00021528 Jul 2001 → Sep 2006 major depressive disorder National Institute of Mental Health (NIMH) Completed No outcome recorded
Phase 4 NCT00208702 Sep 1996 → Jul 2003 major depressive disorder Emory University Completed No outcome recorded
Phase not applicable9 trials
NCT02399475 Jan 2015 → Sep 2019 hypothyroidism University of Pennsylvania Completed No outcome recorded
NCT01481402 Jul 2011 → Feb 2014 euthyroid sick syndrome, heart failure Jens Faber Completed No outcome recorded
NCT01360177 Jul 2010 → Dec 2013 breast cancer Stanford University Withdrawn No outcome recorded
NCT01153360 Jun 2010 → Aug 2011 euthyroid sick syndrome Yonsei University Completed No outcome recorded
NCT00903877 May 2009 → Jun 2011 fibromyalgia Stanford University Completed No outcome recorded
NCT00421369 Sep 2007 → Aug 2011 major depressive disorder Hadassah Medical Organization Completed No outcome recorded
NCT00488644 Feb 2006 → Mar 2010 brain neoplasm, hypothyroidism M.D. Anderson Cancer Center Terminated No outcome recorded
NCT00223158 Sep 2003 → May 2005 thyroid cancer Patrice Perron Completed No outcome recorded
NCT00562367 Oct 2001 → Sep 2004 major depressive disorder Massachusetts General Hospital Completed No outcome recorded
Also used as a comparator or background therapy in 17 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 15 trials
Phase 1 NCT02760056 Comparator Jun 2016 → Jan 2017 multiple sclerosis Oregon Health and Science University Completed No outcome recorded
Phase 1 NCT01581463 Comparator Apr → Aug 2012 Ipe, LLC Completed No outcome recorded
Phase 1 NCT00788307 Background Nov 2008 → Feb 2018 prostate cancer Mayo Clinic Terminated No outcome recorded
Phase 1 NCT00978055 Comparator Oct → Dec 2007 Mylan Pharmaceuticals Inc Completed No outcome recorded
Phase 1 NCT00004062 Background Jul 1999 → Aug 2006 head and neck cancer Lucille P. Markey Cancer Center at University of Kentucky Completed No outcome recorded
Phase 1/22 trials
Phase 1/2 NCT04111536 Comparator Mar 2020 → Oct 2023 diastolic heart failure, euthyroid sick syndrome University of Pennsylvania Completed No outcome recorded
Phase 1/2 NCT04112316 Comparator Feb 2020 → Oct 2023 systolic heart failure, thyroid hormone metabolism, abnormal, 3 University of Pennsylvania Completed No outcome recorded
Phase 23 trials
Phase 2 NCT04743661 Background Apr 2022 → Mar 2026 overdue ependymoma, medulloblastoma Pediatric Brain Tumor Consortium Active not recruiting No outcome recorded
Phase 2 NCT01182285 Comparator Sep 2010 → Sep 2015 thyroid cancer National Cancer Institute (NCI) Completed No outcome recorded
Phase 2 NCT00106119 Comparator Mar 2005 → Nov 2013 thyroid gland disorder National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) Completed No outcome recorded
Phase 33 trials
Phase 3 NCT05894954 Background Jul 2023 → Oct 2025 cognitive impairment with or without cerebellar ataxia, dementia Alzheimer's Prevention and Reversal Project, Inc. Completed No outcome recorded
Phase 3 NCT05682482 Comparator Oct 2022 → Jan 2028 expected hypothyroidism M. Medici Recruiting No outcome recorded
Phase 3 NCT00027417 Comparator Apr 2001 → Aug 2007 congenital heart disease Michael Portman Completed No outcome recorded
Phase 41 trial
Phase 4 NCT00531713 Comparator Apr 2003 → Mar 2007 depressive disorder Copenhagen University Hospital at Herlev Completed No outcome recorded
Phase not applicable3 trials
NCT07568574 Background Mar 2026 → May 2028 expected Enhanced Emirates Limited Enrolling by invitation No outcome recorded
NCT02317926 Comparator May 2015 → May 2018 hypothyroidism Walter Reed National Military Medical Center Unknown No outcome recorded
NCT00715572 Comparator Mar 2002 → Feb 2004 hypothyroidism I.M. Sechenov First Moscow State Medical University Completed No outcome recorded

Evidence & citations 51 cited values

Every value below carries the sentence it was read from. 64 sources stand behind the page.

FieldValueCited text
Known as liothyronine “The study goals are: 1.) To assess whether the simultaneous commencement of liothyronine or pindolol to an SSRI can accelerate the treatment response (i.e. faster rate of...” NCT00221494
29

“Atrophic subtype support may include: estradiol, progesterone, testosterone, DHEA, pregnenolone, levothyroxine, liothyronine, hydrocortisone.” NCT05894954

NCT02506751

NCT01800617

NCT00106119

NCT07424183

NCT05017610

NCT04112316

NCT00790738

NCT02760056

NCT02399475

NCT04743661

NCT02317926

NCT03053115

NCT02457897

NCT05682482

NCT06731764

NCT03627611

NCT04782856

NCT00223158

NCT01581463

NCT04111536

NCT00488644

NCT00004828

NCT07346157

NCT01481402

NCT03098433

NCT07568574

NCT01153360

NCT00562367

Known as 3,5,3'-triiodothyronine, l- ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Basoprocin ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as BCT303 “This preparation of T3 is called Thyromax® or BCT303.” NCT01800617
Known as Cynomel ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Cyronine ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Cytobin ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Cytomel Cytomel (liothyronine) 25-50 mcg/day for 4 weeks” NCT00562367
1

NCT00978055

Known as cytomel (liothyronine) cytomel (liothyronine)NCT00790738
Known as Euthroid-0.5 ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Euthroid-1 ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Euthroid-2 ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Euthroid-3 ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Ibiothyron ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as L-3,5,3'-triiodothyronine “Thyroid hormones play multiple roles in lung function, and L-3,5,3'-triiodothyronine (T3) has multiple effects on lung alveolar type II cells.” PMID 33127750 Oct 2020
Known as L-T3 “A recent trial showed that 1:3 μg:μg liothyronine (L-T3) substitution for levothyroxine (L-T4) achieving near-identical TSH levels resulted in a significant decrease in weight...” PMID 23585666 Apr 2013
6

“Liothyronine (L-T3) is a short-acting thyroid hormone with demonstrated safety and tolerability for short-term and chronic use in euthyroid adults with other health conditions,...” PMID 32120028 Feb 2020

“The effects of levothyroxine (LT4)/liothyronine (LT3) combination therapy on quality of life (QoL) in hypothyroid patients former on LT4 monotherapy have been disappointing.” PMID 35273566 Feb 2022

“Liothyronine (L-triiodothyronine or LT3) in the 5 mcg tablet dose formulation.” NCT04111536

“Liothyronine/levothyroxine (LT3/LT4) combination therapy.” NCT04782856

“liothyronine (synthetic T3, LT3)” NCT06731764

“Liothyronine (L-T3)” NCT07424183

Known as L-triiodothyronine “Liothyronine (L-triiodothyronine or LT3) in the 5 mcg tablet dose formulation.” NCT04112316
Known as L-triiodothyronine hydrochloride ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as L-triiodothyronine sodium salt ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Levothyroxine sodium related compound liothyronine ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Liothyronine hydrochloride ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as liothyronine sodium “The safety of a commercially available formulation of liothyronine sodium (synthetic T3) administered intratracheally was assessed in an Investigational New Drug...” PMID 33127750 Oct 2020
7

“bolus administration of Liothyronine Sodium/Triiodothyronine (Triostat) immediately prior to CPB institution and after removal of aortic cross clamp, followed by repeated boluses” NCT00027417

“Participants will have their L-thyroxine (T4) discontinued and Triiodothyronine (T3)/liothyronine sodium initiated at 3: 1 and titrated.” NCT03787303

liothyronine sodium (triiodothyronine)” PMID 17548749 Jun 2007

NCT00004062

NCT00978055

NCT01182285

NCT00788307

Known as Liothyronine sodium salt ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Liotironina ChEMBL registry synonym — accepted as the source's own label CHEMBL1544
Known as Liotrix (t3) ChEMBL registry synonym — accepted as the source's own label CHEMBL1544