Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer

Background: Hypothyroidism is a well-known side effect associated with tyrosine kinase inhibitors (TKIs) therapy. We describe a case of a patient with a history of postsurgical hypothyroidism who presented TSH elevation ranging from 1.68 to 17.09 IU/ml with normal free thyroxine (T4) after starting...

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Main Authors: L. Plaza-Enriquez, M. Sanchez-Valenzuela, F. Henriquez
Format: Article
Language:English
Published: Elsevier 2022-06-01
Series:Journal of Clinical and Translational Endocrinology Case Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214624522000077
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author L. Plaza-Enriquez
M. Sanchez-Valenzuela
F. Henriquez
author_facet L. Plaza-Enriquez
M. Sanchez-Valenzuela
F. Henriquez
author_sort L. Plaza-Enriquez
collection DOAJ
description Background: Hypothyroidism is a well-known side effect associated with tyrosine kinase inhibitors (TKIs) therapy. We describe a case of a patient with a history of postsurgical hypothyroidism who presented TSH elevation ranging from 1.68 to 17.09 IU/ml with normal free thyroxine (T4) after starting treatment with alectinib for non-small cell lung cancer (NSCLC). Case presentation: A 78-year-old female, with past medical history of Graves’ disease with subsequent total thyroidectomy and residual postsurgical hypothyroidism, was diagnosed with non-small cell lung cancer (NSCLC) and presented with TSH elevation with normal free T4 after starting therapy with alectinib. Conclusion: The most likely etiology for TSH elevation during her therapy with alectinib is an increased requirement of thyroid hormone secondary to increase activity of type 3 deiodinase and/or inhibition of monocarboxylate transporter 8 (MCT8) with consequent lower tissue availability of active T3. Further studies of thyroid dysfunction after alectinib administration are lacking.
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spelling doaj.art-05a7c5251fac4c26affa3b3aa37c494c2022-12-22T02:10:18ZengElsevierJournal of Clinical and Translational Endocrinology Case Reports2214-62452022-06-0124100113Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancerL. Plaza-Enriquez0M. Sanchez-Valenzuela1F. Henriquez2Internal Medicine Residency, Memorial Healthcare System, USAInternal Medicine Residency, St. Barnabas Hospital, USA; Corresponding author. 2475 Hughes Ave, Apt 1 C, Bronx, NY, 10458, USA.Endocrinology, Faculty Memorial Healthcare System, Internal Medicine Residency, USABackground: Hypothyroidism is a well-known side effect associated with tyrosine kinase inhibitors (TKIs) therapy. We describe a case of a patient with a history of postsurgical hypothyroidism who presented TSH elevation ranging from 1.68 to 17.09 IU/ml with normal free thyroxine (T4) after starting treatment with alectinib for non-small cell lung cancer (NSCLC). Case presentation: A 78-year-old female, with past medical history of Graves’ disease with subsequent total thyroidectomy and residual postsurgical hypothyroidism, was diagnosed with non-small cell lung cancer (NSCLC) and presented with TSH elevation with normal free T4 after starting therapy with alectinib. Conclusion: The most likely etiology for TSH elevation during her therapy with alectinib is an increased requirement of thyroid hormone secondary to increase activity of type 3 deiodinase and/or inhibition of monocarboxylate transporter 8 (MCT8) with consequent lower tissue availability of active T3. Further studies of thyroid dysfunction after alectinib administration are lacking.http://www.sciencedirect.com/science/article/pii/S2214624522000077Tyrosine kinase inhibitors (TKIs)Thyroid dysfunctionAlectinib
spellingShingle L. Plaza-Enriquez
M. Sanchez-Valenzuela
F. Henriquez
Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
Journal of Clinical and Translational Endocrinology Case Reports
Tyrosine kinase inhibitors (TKIs)
Thyroid dysfunction
Alectinib
title Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
title_full Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
title_fullStr Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
title_full_unstemmed Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
title_short Thyroid dysfunction induced by alectinib in a patient with a non-small cell lung cancer
title_sort thyroid dysfunction induced by alectinib in a patient with a non small cell lung cancer
topic Tyrosine kinase inhibitors (TKIs)
Thyroid dysfunction
Alectinib
url http://www.sciencedirect.com/science/article/pii/S2214624522000077
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AT fhenriquez thyroiddysfunctioninducedbyalectinibinapatientwithanonsmallcelllungcancer