Recommendations for treatment of hypothyroidism with levothyroxine and levotriiodothyronine: a 2016 position statement of the Italian Society of Endocrinology and the Italian Thyroid Association
Abstract
Levothyroxine (L-T4) is recommended as lifelong replacement therapy for hypothyroidism. Recent clinical and experimental data support the addition of levotriiodothyronine (L-T3) treatment in some selected hypothyroid patients when their symptoms persist and their quality of life remains impaired despite adequate L-T4 monotherapy. An increase in L-T3 prescriptions has been recently observed in Italy due to availability of different L-T3 formulations, making it possible to clinicians to prescribe L-T3 alone or in combination with L-T4. The aim of the present position statement was to define the correct clinical indications, schedule, duration of treatment and contraindications of combined treatment with L-T4 and L-T3 in hypothyroid patients in an attempt to guide clinicians and to avoid potential adverse effects of overtreatment.
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The Italian Endocrine Society and the Italian Association of Clinical Endocrinologists suggested that combination therapy could be considered.
“Most recently, the Italian Endocrine Society and the Italian Association of Clinical Endocrinologists have also suggested that combination therapy could be considered (21,22).”
From Short-Term Time Trends in Prescribing Therapy for Hypothyroidism: Results of a Survey of American Thyroid Association Members (2019) · cites this paper as [21]
Levothyroxine is the first-line treatment for hypothyroidism.
“Since levothyroxine is the first-line treatment for hypothyroidism”
From Diagnosis and management of treatment-refractory hypothyroidism: an expert consensus report (2017) · cites this paper as [19]
Cites
Haugen, B. R., Alexander, E. K., Bible, K. C., Doherty, G. M., Mandel, S. J., Nikiforov, Y. E., Pacini, F., Randolph, G. W., Sawka, A. M., Schlumberger, M., et al. (2016) · Thyroid® · doi:10.1089/thy.2015.0020 · Cited by 16,535 · see citing works
Self-citationThe Colorado Thyroid Disease Prevalence Study
Canaris, G. J., Manowitz, N. R., Mayor, G., & Ridgway, E. C. (2000) · Archives of Internal Medicine · doi:10.1001/archinte.160.4.526 · Cited by 2,824 · see citing works
Jonklaas, J., Bianco, A. C., Bauer, A. J., Burman, K. D., Cappola, A. R., Celi, F. S., Cooper, D. S., Kim, B. W., Peeters, R. P., Rosenthal, M. S., et al. (2014) · Thyroid® · doi:10.1089/thy.2014.0028 · Cited by 1,928 · see citing works
Bianco, A. C., Salvatore, D., Gereben, B., Berry, M. J., & Larsen, P. R. (2002) · Endocrine Reviews · doi:10.1210/edrv.23.1.0455 · Cited by 1,853 · see citing works
The Clinical Significance of Subclinical Thyroid Dysfunction
Biondi, B., & Cooper, D. S. (2008) · Endocrine Reviews · doi:10.1210/er.2006-0043 · Cited by 1,418 · see citing works
Self-citationSubclinical Hypothyroidism and the Risk of Coronary Heart Disease and Mortality
Rodondi, N., den Elzen, W. P. J., Bauer, D. C., Cappola, A. R., Razvi, S., Walsh, J. P., Åsvold, B. O., Iervasi, G., Imaizumi, M., Collet, T.-H., et al. (2010) · JAMA · doi:10.1001/jama.2010.1361 · Cited by 1,216 · see citing works
Garber, J. R., Cobin, R. H., Gharib, H., Hennessey, J. V., Klein, I., Mechanick, J. I., Pessah-Pollack, R., Singer, P. A., & Woeber for the American Association, K. A. (2012) · Thyroid · doi:10.1089/thy.2012.0205 · Cited by 1,053 · see citing works
Roberts, C. G., & Ladenson, P. W. (2004) · The Lancet · doi:10.1016/s0140-6736(04)15696-1 · Cited by 567 · see citing works
Gencer, B., Collet, T.-H., Virgini, V., Bauer, D. C., Gussekloo, J., Cappola, A. R., Nanchen, D., den Elzen, W. P. J., Balmer, P., Luben, R. N., et al. (2012) · Circulation · doi:10.1161/circulationaha.112.096024 · Cited by 517 · see citing works
Saravanan, P., Chau, W. ‐., Roberts, N., Vedhara, K., Greenwood, R., & Dayan, C. M. (2002) · Clinical Endocrinology · doi:10.1046/j.1365-2265.2002.01654.x · Cited by 514 · see citing works
Bunevičius, R., Kažanavičius, G., Žalinkevičius, R., & Prange, A. J. (1999) · New England Journal of Medicine · doi:10.1056/nejm199902113400603 · Cited by 482 · see citing works
2012 ETA Guidelines: The Use of L-T4 + L-T3 in the Treatment of Hypothyroidism
Wiersinga, W. M., Duntas, L., Fadeyev, V., Nygaard, B., & Vanderpump, M. P. J. (2012) · European Thyroid Journal · doi:10.1159/000339444 · Cited by 427 · see citing works
Hypothyroidism as a Risk Factor for Cardiovascular Disease
Biondi, B., & Klein, I. L. (2004) · Endocrine · doi:10.1385/endo:24:1:001 · Cited by 411 · see citing works
Self-citationPanicker, V., Saravanan, P., Vaidya, B., Evans, J., Hattersley, A. T., Frayling, T. M., & Dayan, C. M. (2009) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2008-1301 · Cited by 327 · see citing works
Biondi, B., Bartalena, L., Cooper, D. S., Hegedüs, L., Laurberg, P., & Kahaly, G. J. (2015) · European Thyroid Journal · doi:10.1159/000438750 · Cited by 323 · see citing works
Self-citationLevothyroxine Monotherapy Cannot Guarantee Euthyroidism in All Athyreotic Patients
Gullo, D., Latina, A., Frasca, F., Le Moli, R., Pellegriti, G., & Vigneri, R. (2011) · PLoS ONE · doi:10.1371/journal.pone.0022552 · Cited by 307 · see citing works
Wekking, E. M., Appelhof, B. C., Fliers, E., Schene, A. H., Huyser, J., Tijssen, J. G. P., & Wiersinga, W. M. (2005) · European Journal of Endocrinology · doi:10.1530/eje.1.02025 · Cited by 299 · see citing works
Grozinsky-Glasberg, S., Fraser, A., Nahshoni, E., Weizman, A., & Leibovici, L. (2006) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2006-0448 · Cited by 296 · see citing works
Escobar-Morreale, H. F., Obregón, M. J., Escobar del Rey, F., & Morreale de Escobar, G. (1995) · Journal of Clinical Investigation · doi:10.1172/jci118353 · Cited by 287 · see citing works
Biondi, B., & Cooper, D. S. (2010) · Thyroid · doi:10.1089/thy.2009.0311 · Cited by 286 · see citing works
Self-citationEscobar-Morreale, H. F., del Rey, F. E., Obregón, M. J., & de Escobar, G. M. (1996) · Endocrinology · doi:10.1210/endo.137.6.8641203 · Cited by 261 · see citing works
Treatment with thyroid hormone
Biondi, B., & Wartofsky, L. (2014) · Endocrine Reviews · doi:10.1210/er.2013-1083 · Cited by 259 · see citing works
Self-citationTriiodothyronine Levels in Athyreotic Individuals During Levothyroxine Therapy
Jonklaas, J. (2008) · JAMA · doi:10.1001/jama.299.7.769 · Cited by 216 · see citing works
CARR, D., MCLEOD, D. T., PARRY, G., & THORNES, H. M. (1988) · Clinical Endocrinology · doi:10.1111/j.1365-2265.1988.tb01219.x · Cited by 210 · see citing works
Walsh, J. P., Shiels, L., Lim, E. M., Bhagat, C. I., Ward, L. C., Stuckey, B. G. A., Dhaliwal, S. S., Chew, G. T., Bhagat, M. C., & Cussons, A. J. (2003) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2003-030249 · Cited by 210 · see citing works
Mentuccia, D., Proietti-Pannunzi, L., Tanner, K., Bacci, V., Pollin, T. I., Poehlman, E. T., Shuldiner, A. R., & Celi, F. S. (2002) · Diabetes · doi:10.2337/diabetes.51.3.880 · Cited by 205 · see citing works
Al-Adsani, H. (1997) · Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.82.4.1118 · Cited by 193 · see citing works
Werneck de Castro, J. P., Fonseca, T. L., Ueta, C. B., McAninch, E. A., Abdalla, S., Wittmann, G., Lechan, R. M., Gereben, B., & Bianco, A. C. (2015) · Journal of Clinical Investigation · doi:10.1172/jci77588 · Cited by 184 · see citing works
Appelhof, B. C., Fliers, E., Wekking, E. M., Schene, A. H., Huyser, J., Tijssen, J. G. P., Endert, E., van Weert, H. C. P. M., & Wiersinga, W. M. (2005) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2004-2111 · Cited by 183 · see citing works
Escobar-Morreale, H. F., Botella-Carretero, J. I., Gómez-Bueno, M., Galán, J. M., Barrios, V., & Sancho, J. (2005) · Annals of Internal Medicine · doi:10.7326/0003-4819-142-6-200503150-00007 · Cited by 182 · see citing works
Walsh, J. P., Ward, L. C., Burke, V., Bhagat, C. I., Shiels, L., Henley, D., Gillett, M. J., Gilbert, R., Tanner, M., & Stuckey, B. G. A. (2006) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2006-0099 · Cited by 164 · see citing works
Nygaard, B., Jensen, E. W., Kvetny, J., Jarløv, A., & Faber, J. (2009) · European Journal of Endocrinology · doi:10.1530/eje-09-0542 · Cited by 153 · see citing works
Hoang, T. D., Olsen, C. H., Mai, V. Q., Clyde, P. W., & Shakir, M. K. M. (2013) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2012-4107 · Cited by 151 · see citing works
Scope and limitations of iodothyronine deiodinases in hypothyroidism
Gereben, B., McAninch, E. A., Ribeiro, M. O., & Bianco, A. C. (2015) · Nature Reviews Endocrinology · doi:10.1038/nrendo.2015.155 · Cited by 146 · see citing works
Ito, M., Miyauchi, A., Morita, S., Kudo, T., Nishihara, E., Kihara, M., Takamura, Y., Ito, Y., Kobayashi, K., Miya, A., et al. (2012) · European Journal of Endocrinology · doi:10.1530/eje-11-1029 · Cited by 133 · see citing works
Dora, J. M., Machado, W. E., Rheinheimer, J., Crispim, D., & Maia, A. L. (2010) · European Journal of Endocrinology · doi:10.1530/eje-10-0419 · Cited by 132 · see citing works
Celi, F. S., Zemskova, M., Linderman, J. D., Smith, S., Drinkard, B., Sachdev, V., Skarulis, M. C., Kozlosky, M., Csako, G., Costello, R., et al. (2011) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-1329 · Cited by 125 · see citing works
Combination Treatment with T4 and T3: Toward Personalized Replacement Therapy in Hypothyroidism?
Biondi, B., & Wartofsky, L. (2012) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2011-3399 · Cited by 124 · see citing works
Self-citationPanicker, V., Evans, J., Bjøro, T., Åsvold, B. O., Dayan, C. M., & Bjerkeset, O. (2009) · Clinical Endocrinology · doi:10.1111/j.1365-2265.2008.03521.x · Cited by 121 · see citing works
Paradigm shifts in thyroid hormone replacement therapies for hypothyroidism
Wiersinga, W. M. (2014) · Nature Reviews Endocrinology · doi:10.1038/nrendo.2013.258 · Cited by 114 · cited 1× · see citing works
“About 48 % of the patients expressed preference for the combined therapy [44].”
BackgroundBunevicius, R., Jakubonien, N., Jurkevicius, R., Cernicat, J., Lašas, L., & Prange, A. J. (2002) · Endocrine · doi:10.1385/endo:18:2:129 · Cited by 111 · see citing works
de Jong, F. J., Peeters, R. P., den Heijer, T., van der Deure, W. M., Albert Hofman, D., Uitterlinden, A. G., Visser, T. J., & Breteler, M. M. B. (2006) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2006-1331 · Cited by 110 · see citing works
Smith, R. N., Taylor, S. A., & Massey, J. C. (1970) · BMJ · doi:10.1136/bmj.4.5728.145 · Cited by 106 · cited 2× · see citing works
“Hyperthyroid symptoms may increase significantly after L-T3 administration [24], and persistently elevated serum TT3 and FT3 levels may be a risk factor for the development of atrial arrhythmias and progression of acute myocardial ischemia [25, 26].”
BackgroundVita, R., Saraceno, G., Trimarchi, F., & Benvenga, S. (2014) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2014-2684 · Cited by 99 · see citing works
Self-citationVan Der Deure, W. M., Appelhof, B. C., Peeters, R. P., Wiersinga, W. M., Wekking, E. M., Huyser, J., Schene, A. H., Tijssen, J. G. P., Hoogendijk, W. J. G., Visser, T. J., et al. (2008) · Clinical Endocrinology · doi:10.1111/j.1365-2265.2008.03267.x · Cited by 97 · see citing works
Thyroxine alone or thyroxine plus triiodothyronine replacement therapy for hypothyroidism
Chao, M., Jiawei, X., Xia, H., Guoming, W., Yangang, W., Xufu, W., & Shuyao, Z. (2009) · Nuclear Medicine Communications · doi:10.1097/mnm.0b013e32832c79e0 · Cited by 93 · see citing works
Guo, T.-W., Zhang, F.-C., Yang, M.-S., Gao, X.-C., Bian, L., Duan, S.-W., Zheng, Z.-J., Gao, J.-J., Wang, H., Li, R.-L., et al. (2004) · Journal of Medical Genetics · doi:10.1136/jmg.2004.019190 · Cited by 91 · see citing works
Fadeyev, V. V., Morgunova, T. B., Melnichenko, G. A., & Dedov, I. I. (2010) · Hormones · doi:10.14310/horm.2002.1274 · Cited by 77 · see citing works
Liothyronine use in a 17 year observational population‐based study ‐ the tears study
Leese, G. P., Soto‐Pedre, E., & Donnelly, L. A. (2016) · Clinical Endocrinology · doi:10.1111/cen.13052 · Cited by 75 · see citing works
Trends in thyroid hormone prescribing and consumption in the UK
Mitchell, A. L., Hickey, B., Hickey, J. L., & Pearce, S. H. (2009) · BMC Public Health · doi:10.1186/1471-2458-9-132 · Cited by 73 · see citing works
Excess Triiodothyronine as a Risk Factor of Coronary Events
Peters, A., Ehlers, M., Blank, B., Exler, D., Falk, C., Kohlmann, T., Fruehwald‐Schultes, B., Wellhoener, P., Kerner, W., & Fehm, H. L. (2000) · Archives of Internal Medicine · doi:10.1001/archinte.160.13.1993 · Cited by 61 · see citing works
Joffe, R. T., Brimacombe, M., Levitt, A. J., & Stagnaro-Green, A. (2007) · Psychosomatics · doi:10.1176/appi.psy.48.5.379 · Cited by 57 · see citing works
Hennessey, J. V., Malabanan, A. O., Haugen, B. R., & Levy, E. G. (2010) · Endocrine Practice · doi:10.4158/ep0362.or · Cited by 56 · see citing works
Ito, M., Miyauchi, A., Kang, S., Hisakado, M., Yoshioka, W., Ide, A., Kudo, T., Nishihara, E., Kihara, M., Ito, Y., et al. (2015) · European Journal of Endocrinology · doi:10.1530/eje-15-0138 · Cited by 51 · see citing works
He, B., Li, J., Wang, G., Ju, W., Lu, Y., Shi, Y., He, L., & Zhong, N. A. (2009) · Progress in Neuro-Psychopharmacology and Biological Psychiatry · doi:10.1016/j.pnpbp.2009.05.003 · Cited by 47 · see citing works
Estivalet, A. A. F., Leiria, L. B., Dora, J. M., Rheinheimer, J., Bouças, A. P., Maia, A. L., & Crispim, D. (2010) · Obesity · doi:10.1038/oby.2010.231 · Cited by 41 · see citing works
Jonklaas, J., & Burman, K. D. (2016) · Thyroid® · doi:10.1089/thy.2015.0629 · Cited by 41 · see citing works
Levothyroxine: therapeutic use and regulatory issues related to bioequivalence
Wartofsky, L. (2002) · Expert Opinion on Pharmacotherapy · doi:10.1517/14656566.3.6.727 · Cited by 38 · see citing works
Roef, G. L., Rietzschel, E. R., Meyer, T. D., Bekaert, S., Buyzere, M. D., daele, C. M. V., Toye, K. R. C., Kaufman, J., & Taes, Y. (2013) · Clinica Chimica Acta · doi:10.1016/j.cca.2013.08.017 · Cited by 28 · see citing works
Hannemann, A., Friedrich, N., Haring, R., Krebs, A., Völzke, H., Alte, D., Nauck, M. A., Kohlmann, T., Schober, H., Hoffmann, W. U., et al. (2010) · BMC Research Notes · doi:10.1186/1756-0500-3-227 · Cited by 22 · see citing works
Schmidt, U., Nygaard, B., Jensen, E. W., Kvetny, J., Jarløv, A., & Faber, J. (2013) · Endocrine Connections · doi:10.1530/ec-12-0064 · Cited by 17 · see citing works
Yavuz, S., Linderman, J. D., Smith, S., Zhao, X., Pucino, F., & Celi, F. S. (2013) · The Journal of Clinical Endocrinology & Metabolism · doi:10.1210/jc.2012-4196 · Cited by 15 · see citing works
Taylor, P. N., Okosieme, O. E., Sayers, A. E., et al. (2014) · The Lancet · doi:10.1016/s0140-6736(14)60363-9 · Cited by 10 · see citing works
Terapia sostitutiva combinata con L-T4 e L-T3 nell’ipotiroidismo
Biondi, B., Celi, F. S., Duntas, L. H., Isidori, A. M., Pontecorvi, A., Salvatore, D., Vitti, P., & Trimarchi, F. (2015) · L Endocrinologo · doi:10.1007/s40619-015-0158-6 · Cited by 1 · see citing works
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Diagnosis and management of treatment-refractory hypothyroidism: an expert consensus report
Centanni, M., Benvenga, S., & Sachmechi, I. (2017) · Journal of Endocrinological Investigation · doi:10.1007/s40618-017-0706-y · Cited by 113 · see citing works
“Since levothyroxine is the first-line treatment for hypothyroidism [18, 19] and one of the most widely used drugs in the US with more than 115 million prescriptions dispensed in 2013 [20], a fresh examination of the causes of its frequent sub-optimal performance is warranted.”
BackgroundMitchell, A. L., Hegedüs, L., Žarković, M., Hickey, J. L., & Perros, P. (2021) · Clinical Endocrinology · doi:10.1111/cen.14340 · Cited by 81 · see citing works
Perros, P., Van Der Feltz‐Cornelis, C., Papini, E., Nagy, E. V., Weetman, A. P., & Hegedüs, L. (2023) · Clinical Endocrinology · doi:10.1111/cen.14473 · Cited by 65 · see citing works
THERAPY OF ENDOCRINE DISEASE: T4 + T3 combination therapy: is there a true effect?
Wiersinga, W. M. (2017) · European Journal of Endocrinology · doi:10.1530/eje-17-0645 · Cited by 52 · see citing works
Hennessey, J. V., & Espaillat, R. (2018) · International Journal of Clinical Practice · doi:10.1111/ijcp.13062 · Cited by 49 · see citing works
Tariq, A., Wert, Y., Cheriyath, P., & Joshi, R. (2018) · Southern Medical Journal · doi:10.14423/smj.0000000000000823 · Cited by 43 · see citing works
“The Italian Society of Endocrinology does not have evidence-based data, but recognizes that LT4 and LT3 therapy may be considered an experimental approach in overtly hypothyroid patients who have persistent symptoms despite adequate LT4 doses resulting in biochemical euthyroidism after exclusion of other specific caus…”
BackgroundPhysician Choice of Hypothyroidism Therapy: Influence of Patient Characteristics
Jonklaas, J., Tefera, E., & Shara, N. (2018) · Thyroid · doi:10.1089/thy.2018.0325 · Cited by 41 · see citing works
Akirov, A., Fazelzad, R., Ezzat, S., Thabane, L., & Sawka, A. M. (2019) · Frontiers in Endocrinology · doi:10.3389/fendo.2019.00477 · Cited by 37 · see citing works
Prescribing Therapy for Hypothyroidism: Influence of Physician Characteristics
Jonklaas, J., Tefera, E., & Shara, N. (2019) · Thyroid · doi:10.1089/thy.2018.0369 · Cited by 31 · see citing works
Jonklaas, J., Tefera, E., & Shara, N. (2019) · Frontiers in Endocrinology · doi:10.3389/fendo.2019.00031 · Cited by 23 · see citing works
“Most recently, the Italian Endocrine Society and the Italian Association of Clinical Endocrinologists have also suggested that combination therapy could be considered (21, 22).”
BackgroundPirola, I., Gandossi, E., Brancato, D., Marini, F., Cristiano, A., Delbarba, A., Agosti, B., Castellano, M., & Cappelli, C. (2018) · Journal of Endocrinological Investigation · doi:10.1007/s40618-018-0867-3 · Cited by 21 · see citing works
- Authors
- Biondi, B., Bartalena, L., Chiovato, L., Lenzi, A., Mariotti, S., Pacini, F., Pontecorvi, A., Vitti, P., & Trimarchi, F.
- Affiliations
- Federico II University Hospital (IT)
- University of Insubria (IT)
- University of Pavia (IT)
- Sapienza University of Rome (IT)
- University of Cagliari (IT)
- University of Siena (IT)
- Università Cattolica del Sacro Cuore (IT)
- University of Pisa (IT)
- University of Messina (IT)
- Corresponding author
- Biondi, B.
- ORCID
- Venue
- Journal of Endocrinological Investigation
- Published
- 2016-07-29
- Volume
- 39
- Issue
- 12
- Pages
- 1465-1474
- ISSN
- 0391-4097 (ISSN-L)
- 1720-8386
- OpenAlex
- W2490875036
- Semantic Scholar
- 9d883eda36e2e96f6bc3523d8d22d5a02a10ef4a
- Cited by
- 44
- References
- 64
- Citations by year
- 2025: 3 · 2024: 4 · 2023: 4 · 2022: 2 · 2021: 5 · 2020: 3 · 2019: 8 · 2018: 9 · 2017: 3 · 2016: 2
- FWCI
- 7.36
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Endocrinological Investigation (publishedVersion)
- PubMed (publishedVersion)
- CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
- IrInSubria (University of Insubria) (submittedVersion)
- UNICA IRIS Institutional Research Information System (University of Cagliari) (submittedVersion)
- Topics
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
- Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
- Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Cancer Diagnosis and Treatment
- Keywords
- hypothyroidism, levothyroxine, overtreatment, treatment indications, treatment duration, contraindications, quality of life
- MeSH terms
- Humans, Hypothyroidism, Italy, Quality of Life, Thyroxine, Triiodothyronine, Practice Guidelines as Topic, Hormone Replacement Therapy
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