Autoimmune ThyroiditisPhase 4THYROSELNCT02644707
Selenium Supplementation in Youths With Autoimmune Thyroiditis
A Phase 4 study testing L-selenomethionine in people with Autoimmune Thyroiditis, run by Aristotle University Of Thessaloniki at 1 site in Greece.
Trial summary
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 [Anti-thyroid peroxidase (anti-TPO) and Anti-thyroglobulin (anti-Tg) antibodies], in children… Read more about this study
- Who is it for?
- Ages 4 to 18 years
- Conditions the study is for
- Autoimmune Thyroiditis
- What is being tested?
- L-selenomethionine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 100 participants
- Where
- 1 siteGreece
- Study dates
- Aug 2014to Aug 2018
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 4 to 18 years
- All sexes
- No healthy volunteers
- Child, Adult
Who may be able to join
None listed.
Who cannot join
- Presence of another chronic disease or autoimmune disease or being under medication
- Age of diagnosis above 18 years
Trial locations and contacts
1 site in 1 country.
Greece1 site
Unit of Pediatric Endocrinology, Diabetes and Metabolism-4th Department of Pediatrics, Medical School of Aristotle University of Thessaloniki
Thessaloniki, 56403
About this study
Official title: L-selenomethionine Supplementation in Children and Adolescents With Autoimmune Thyroiditis: a Randomized Blind Placebo-controlled Clinical Trial
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 [Anti-thyroid peroxidase (anti-TPO) and Anti-thyroglobulin (anti-Tg) antibodies], in children and adolescents with autoimmune thyroiditis (AT).
Read the detailed description
Background: Selenium in the form of seleno-cysteine is an essential component of enzymes that remove toxic substances from the body, such as glutathione peroxidase (GPX) in thyroid cells as well as seleno-dependent iodothyronine deiodinase that catalyses extra-thyroidal production of triiodothyronine (T3). In general, selenium deficiency may influence production of free radicals, conversion of thyroxine T4 to T3, cytokine production and immune mechanisms. Thus, it has been previously suggested that its supplementation may have a beneficial effect in patients with autoimmune thyroiditis, especially in those with increased inflammatory activity and a higher antibody titer. Although the two studies that have so far been conducted in pediatric populations demonstrated no significant effect of selenium administration on the titre of antibodies, the researchers did administer selenium either in the form of inorganic sodium selenite at the "adult" dose (100-200 mcg daily) or in the form of organic L-selenomethionine at the reduced dose (50 mcg daily). Therefore, to the best of our knowledge, selenium supplementation in the form of organic L-selenomethionine at the "adult" dose (200 mcg daily) has not been investigated in children and adolescents with autoimmune thyroiditis (AT) so far.
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
- Autoimmune Thyroiditis
- Being tested
- L-selenomethionine, Placebo
- Medical subject headings
- Thyroiditis, Autoimmune
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
L-selenomethionineDietary supplement
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
PlaceboOther
The group will be randomized to receive placebo (control group) for 6 months
| Study group | Role | What they receive |
|---|---|---|
| L-selenomethionine | Experimental | A group randomized to receive organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) for 6 months Receives: Dietary Supplement: L-selenomethionine |
| Placebo | Placebo comparator | A group randomized to receive placebo (control group) for 6 months Receives: Other: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in titer of thyroid autoantibodies (thyroid-peroxidase -AntiTPO-, and thyroglobulin -antiTg- antibodies)
Measured: 0,3,6,12 months
Secondary outcomes (4)
Measurement of serum selenium levels
Measured: 0 months
Change in state of thyroid function (Euthyroid or Hypothyroid)
Hypothyroid state will be defined as the state of abnormal thyroid function that requires substitution treatment with L-thyroxine; in particular, if thyroid-stimulating hormone (TSH) serum levels are greater than 5 micro-units per milliliter (mcU/ml) and/or the levels of fT4 or fT3 are decreased. Otherwise the state will be considered as euthyroid.
Measured: 0,6,12 months
Change in thyroxine dose per kg per day
Measured: 0,6,12 months
Change in thyroid volume measured by ultrasonography
Measured: 0,6,12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 Jan 2016 (estimated)
- Study startAug 2014
- Primary completionOct 2016
- Study completionAug 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Autoimmune ThyroiditisStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind
- Who is masked
- Participant, Care provider, Investigator, Outcomes assessor
- Enrolment
- 100 participants (actual)
Sponsor and investigators
- Lead sponsor
- Aristotle University Of Thessaloniki
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Assimina Galli-Tsinopoulou, Aristotle University Of Thessaloniki
- Investigators
- Assimina Galli-Tsinopoulou, Assoc Prof, Principal investigator, Unit of Pediatric Endocrinology, Diabetes and Metabolism - 4th Department of Pediatrics, Medical School of Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02644707
- Sponsor's protocol ID
- ARISTOTLE UNIVERSITY
- Acronym
- THYROSEL
- Status last verified
- Jan 2020
- First submitted
- 29 Dec 2015
- Last updated
- 5 Feb 2020
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
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.
PubMed 18302514Anastasilakis 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.
PubMed 22356267Bonfig 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.
PubMed 20526530Duntas 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.
PubMed 12656658Eskes 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.
PubMed 23844613Gartner 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.
PubMed 11932302Krysiak 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.
PubMed 21508145Mazokopakis 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.
PubMed 17696828Nacamulli 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.
PubMed 20039895Negro 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.
PubMed 17284630Onal 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.
PubMed 23155687Toulis 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.
PubMed 20883174Turker 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.
PubMed 16837619van 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.
PubMed 23744563Zhu 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.
PubMed 23158484
Study at a glance
From the registry record, last updated by the sponsor on 5 Feb 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- L-selenomethionine Supplementation in Children and Adolescents With Autoimmune Thyroiditis: a Randomized Blind Placebo-controlled Clinical Trial
- ClinicalTrials.gov ID
- NCT02644707
- Acronym / sponsor ID
- THYROSEL / ARISTOTLE UNIVERSITY
- Conditions
- Autoimmune Thyroiditis
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 100 participants (actual)
- Lead sponsor
- Aristotle University Of ThessalonikiUniversity, hospital or other
- Study start
- Aug 2014
- Primary completion
- Oct 2016 (actual)
- Study completion
- Aug 2018 (actual)
- First posted
- 1 Jan 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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 [Anti-thyroid peroxidase (anti-TPO) and Anti-thyroglobulin (anti-Tg) antibodies], in children and adolescents with autoimmune thyroiditis (AT).
Detailed description
Background: Selenium in the form of seleno-cysteine is an essential component of enzymes that remove toxic substances from the body, such as glutathione peroxidase (GPX) in thyroid cells as well as seleno-dependent iodothyronine deiodinase that catalyses extra-thyroidal production of triiodothyronine (T3). In general, selenium deficiency may influence production of free radicals, conversion of thyroxine T4 to T3, cytokine production and immune mechanisms. Thus, it has been previously suggested that its supplementation may have a beneficial effect in patients with autoimmune thyroiditis, especially in those with increased inflammatory activity and a higher antibody titer. Although the two studies that have so far been conducted in pediatric populations demonstrated no significant effect of selenium administration on the titre of antibodies, the researchers did administer selenium either in the form of inorganic sodium selenite at the "adult" dose (100-200 mcg daily) or in the form of organic L-selenomethionine at the reduced dose (50 mcg daily). Therefore, to the best of our knowledge, selenium supplementation in the form of organic L-selenomethionine at the "adult" dose (200 mcg daily) has not been investigated in children and adolescents with autoimmune thyroiditis (AT) so far.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Quadruple blind (participant, care provider, investigator, outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| L-selenomethionine | Experimental | Dietary Supplement: L-selenomethionineA group randomized to receive organic selenium in the form of L-selenomethionine at the dose of 200mcg daily (intervention group) for 6 months |
| Placebo | Placebo comparator | Other: PlaceboA group randomized to receive placebo (control group) for 6 months |
Who may qualify
- Ages
- 4 to 18 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult
Key inclusion criteria (0 listed)
Key exclusion criteria (2 listed)
- Presence of another chronic disease or autoimmune disease or being under medication
- Age of diagnosis above 18 years
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| L-selenomethionineThe 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 | Dietary supplement | L-selenomethionine |
| PlaceboThe group will be randomized to receive placebo (control group) for 6 months | Other | Placebo |
Primary outcome
Change in titer of thyroid autoantibodies (thyroid-peroxidase -AntiTPO-, and thyroglobulin -antiTg- antibodies)
Time frame: 0,3,6,12 months
4 secondary outcomes
Measurement of serum selenium levels
Time frame: 0 months
Change in state of thyroid function (Euthyroid or Hypothyroid)
Time frame: 0,6,12 months
Change in thyroxine dose per kg per day
Time frame: 0,6,12 months
Change in thyroid volume measured by ultrasonography
Time frame: 0,6,12 months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 5 Feb 2020.
- Background: PubMed 18302514Karanikas 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.
- Results publication: PubMed 22356267Anastasilakis 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.
- Results publication: PubMed 20526530Bonfig 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.
- Results publication: PubMed 12656658Duntas 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.
- Results publication: PubMed 23844613Eskes 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.
- Results publication: PubMed 11932302Gartner 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.
- Results publication: PubMed 21508145Krysiak 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.
- Results publication: PubMed 17696828Mazokopakis 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.
- Results publication: PubMed 20039895Nacamulli 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.
- Results publication: PubMed 17284630Negro 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.
- Results publication: PubMed 23155687Onal 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.
- Results publication: PubMed 20883174Toulis 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.
- Individual participant dataSharing planned: No
Related trials for Autoimmune Thyroiditis
RecruitingPhase 3
Study to Assess Linsitinib in Participants With Moderate to Severe Active Thyroid Eye Disease (TED)
Thyroid Eye Disease, TED, Graves Orbitopathy
Not yet recruiting
Impact of Restrictive Diets on Inflammation and Quality of Life in Autoimmune Thyroiditis
Thyroid Autoimmune Disease, Hashimoto's Thyroiditis
Not yet recruitingObservational study
Role of Total Thyroidectomy in Relieving Local Symptoms in Hashimoto's Thyroiditis
Hashimoto Thyroiditis, Goiter
Active, not recruiting
Gluten Free Diet in Hashimoto's Hypothyroidism
Hypothyroidism, Hashimoto Disease
Not yet recruitingObservational study
Thyroid Disorders in Pediatric Autoimmune Hepatitis
Thyroid Disease, Autoimmune Hepatitis
Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Assimina Galli-Tsinopoulou, Assoc Prof principal investigator
Unit of Pediatric Endocrinology, Diabetes and Metabolism - 4th Department of Pediatrics, Medical School of Aristotle University of Thessaloniki, 56403 Thessaloniki, Greece
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing L-selenomethionine in people with Autoimmune Thyroiditis, run by Aristotle University Of Thessaloniki at 1 site in Greece.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 0 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 5 Feb 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Greece. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in titer of thyroid autoantibodies (thyroid-peroxidase -AntiTPO-, and thyroglobulin -antiTg- antibodies) (time frame: 0,3,6,12 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02644707, which also lists 15 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Feb 2020.