Selenium Supplementation in Youths With Autoimmune Thyroiditis
NCT ID: NCT02644707
Last Updated: 2020-02-05
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
PHASE4
100 participants
INTERVENTIONAL
2014-08-31
2018-08-31
Brief Summary
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Detailed Description
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Objective: Our aim is to investigate whether the supplementation of organic selenium at the "adult" dose (200 mcg per day in the form of L-selenomethionine) has a favorable impact on thyroid function, including the titer of anti-thyroid antibodies (thyroid-peroxidase antiTPO, and thyroglobulin -antiTg- antibodies), in children and adolescents with autoimmune thyroiditis (AT).
Design and Methods: This is a randomized blinded placebo-controlled clinical trial of selenium supplementation versus placebo in children and adolescents with autoimmune thyroiditis (AT). The trial will include 100 consecutive participants (50 participants in each arm) from the Unit of Pediatric Endocrinology of the 4th Department of Pediatrics, Medical School, Aristotle University of Thessaloniki, Greece. The patients will be informed and given their written consent to be included in the study. The subjects will then be randomized to receive either organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) or placebo (control group) for 6 months. Both groups will receive oral tablets (one daily), which will be identical in appearance, taste and smell and will differ only in the type of active substance (L-selenomethionine or placebo). Six months of additional follow-up will lead to trial duration of 12 months. The experimental supplement will be given by the Pharmaceutical company marketing the product SEMED200® (INTERMED Pharmaceutical Laboratories). In all participants, determination of the concentrations of thyroid-stimulating hormone (TSH), free thyroxine (fT4), thyroid peroxidase antibodies (TPOAb), thyroglobulin antibody (TgAb) will be made at four times (0, 3, 6 and 12 months). Thyroid volume and morphology will also be sonographically evaluated in three times (0, 6 and 12 months). Serum selenium levels in the form of selenomethionine will also be determined once (at the beginning of the study).
Time-schedule: January- February 2015: protocol preparation. March 2015: first participant's first visit. March 2016: last participant's first visit. September 2016: last participant's last visit. September - October 2016: analysis of biological samples and data, preparation of manuscripts, March 2017: last participant's completion of follow-up.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
QUADRUPLE
Study Groups
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L-selenomethionine
A group randomized to receive organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) for 6 months
L-selenomethionine
The group will be randomized to receive organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) for 6 months
Placebo
A group randomized to receive placebo (control group) for 6 months
Placebo
The group will be randomized to receive placebo (control group) for 6 months
Interventions
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L-selenomethionine
The group will be randomized to receive organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) for 6 months
Placebo
The group will be randomized to receive placebo (control group) for 6 months
Eligibility Criteria
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Inclusion Criteria
* Increased volume of thyroid gland (goiter)
* Morphological changes on ultrasound of the thyroid gland
Exclusion Criteria
* Age of diagnosis above 18 years
4 Years
18 Years
ALL
No
Sponsors
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Aristotle University Of Thessaloniki
OTHER
Responsible Party
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Assimina Galli-Tsinopoulou
ASSSOCIATE PROFESSOR
Principal Investigators
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Assimina Galli-Tsinopoulou, Assoc Prof
Role: PRINCIPAL_INVESTIGATOR
Unit of Pediatric Endocrinology, Diabetes and Metabolism - 4th Department of Pediatrics, Medical School of Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece
Locations
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Unit of Pediatric Endocrinology, Diabetes and Metabolism-4th Department of Pediatrics, Medical School of Aristotle University of Thessaloniki
Thessaloniki, , Greece
Countries
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References
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Karanikas G, Schuetz M, Kontur S, Duan H, Kommata S, Schoen R, Antoni A, Kletter K, Dudczak R, Willheim M. No immunological benefit of selenium in consecutive patients with autoimmune thyroiditis. Thyroid. 2008 Jan;18(1):7-12. doi: 10.1089/thy.2007.0127.
Anastasilakis AD, Toulis KA, Nisianakis P, Goulis DG, Kampas L, Valeri RM, Oikonomou D, Tzellos TG, Delaroudis S. Selenomethionine treatment in patients with autoimmune thyroiditis: a prospective, quasi-randomised trial. Int J Clin Pract. 2012 Apr;66(4):378-83. doi: 10.1111/j.1742-1241.2011.02879.x. Epub 2012 Feb 22.
Bonfig W, Gartner R, Schmidt H. Selenium supplementation does not decrease thyroid peroxidase antibody concentration in children and adolescents with autoimmune thyroiditis. ScientificWorldJournal. 2010 Jun 1;10:990-6. doi: 10.1100/tsw.2010.91.
Duntas LH, Mantzou E, Koutras DA. Effects of a six month treatment with selenomethionine in patients with autoimmune thyroiditis. Eur J Endocrinol. 2003 Apr;148(4):389-93. doi: 10.1530/eje.0.1480389.
Eskes SA, Endert E, Fliers E, Birnie E, Hollenbach B, Schomburg L, Kohrle J, Wiersinga WM. Selenite supplementation in euthyroid subjects with thyroid peroxidase antibodies. Clin Endocrinol (Oxf). 2014 Mar;80(3):444-51. doi: 10.1111/cen.12284. Epub 2013 Jul 31.
Gartner R, Gasnier BC, Dietrich JW, Krebs B, Angstwurm MW. Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations. J Clin Endocrinol Metab. 2002 Apr;87(4):1687-91. doi: 10.1210/jcem.87.4.8421.
Krysiak R, Okopien B. The effect of levothyroxine and selenomethionine on lymphocyte and monocyte cytokine release in women with Hashimoto's thyroiditis. J Clin Endocrinol Metab. 2011 Jul;96(7):2206-15. doi: 10.1210/jc.2010-2986. Epub 2011 Apr 20.
Mazokopakis EE, Papadakis JA, Papadomanolaki MG, Batistakis AG, Giannakopoulos TG, Protopapadakis EE, Ganotakis ES. Effects of 12 months treatment with L-selenomethionine on serum anti-TPO Levels in Patients with Hashimoto's thyroiditis. Thyroid. 2007 Jul;17(7):609-12. doi: 10.1089/thy.2007.0040.
Nacamulli D, Mian C, Petricca D, Lazzarotto F, Barollo S, Pozza D, Masiero S, Faggian D, Plebani M, Girelli ME, Mantero F, Betterle C. Influence of physiological dietary selenium supplementation on the natural course of autoimmune thyroiditis. Clin Endocrinol (Oxf). 2010 Oct;73(4):535-9. doi: 10.1111/j.1365-2265.2009.03758.x.
Negro R, Greco G, Mangieri T, Pezzarossa A, Dazzi D, Hassan H. The influence of selenium supplementation on postpartum thyroid status in pregnant women with thyroid peroxidase autoantibodies. J Clin Endocrinol Metab. 2007 Apr;92(4):1263-8. doi: 10.1210/jc.2006-1821. Epub 2007 Feb 6.
Onal H, Keskindemirci G, Adal E, Ersen A, Korkmaz O. Effects of selenium supplementation in the early stage of autoimmune thyroiditis in childhood: an open-label pilot study. J Pediatr Endocrinol Metab. 2012;25(7-8):639-44. doi: 10.1515/jpem-2012-0078.
Toulis KA, Anastasilakis AD, Tzellos TG, Goulis DG, Kouvelas D. Selenium supplementation in the treatment of Hashimoto's thyroiditis: a systematic review and a meta-analysis. Thyroid. 2010 Oct;20(10):1163-73. doi: 10.1089/thy.2009.0351.
Turker O, Kumanlioglu K, Karapolat I, Dogan I. Selenium treatment in autoimmune thyroiditis: 9-month follow-up with variable doses. J Endocrinol. 2006 Jul;190(1):151-6. doi: 10.1677/joe.1.06661.
van Zuuren EJ, Albusta AY, Fedorowicz Z, Carter B, Pijl H. Selenium supplementation for Hashimoto's thyroiditis. Cochrane Database Syst Rev. 2013 Jun 6;2013(6):CD010223. doi: 10.1002/14651858.CD010223.pub2.
Zhu L, Bai X, Teng WP, Shan ZY, Wang WW, Fan CL, Wang H, Zhang HM. [Effects of selenium supplementation on antibodies of autoimmune thyroiditis]. Zhonghua Yi Xue Za Zhi. 2012 Aug 28;92(32):2256-60. Chinese.
Other Identifiers
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ARISTOTLE UNIVERSITY
Identifier Type: -
Identifier Source: org_study_id
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