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Thyroiditis AutoimmunePhase 2NCT02302768

Effect of Semet (80 and 160 mcg) Versus Placebo in Euthyroid Patients With AIT

A Phase 2 study testing Selenomethionine in people with Thyroiditis Autoimmune, run by University of Siena.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Over the past 10 years, several clinical studies have suggested that selenium supplementation may influence the natural history of AIT. Recently, Interferon gamma (IFNγ)-inducible chemokines (CXCL-9, -10 and -11) were shown to be elevated in the AIT patients. Read more about this study

Who is it for?
Ages 18 to 65 years, women onlyHealthy volunteers can take part
Conditions the study is for
Thyroiditis Autoimmune
What is being tested?
Selenomethionine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
60 participants
Where
No sites listed yet
Study dates
Dec 2012to Jan 2015
Phase
Phase 2
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 18 to 65 years
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Diagnosis of chronic autoimmune thyroiditis defined by positivity of anti thyroperoxidase and/or anti thyroglobulin antibodies (> or = 100 U/l) and thyroid hypoechogenicity

Who cannot join

  • Presence of other thyroid disease but micronodules
  • History of the malignancy in the past 5 years
  • Drugs affecting immune system and/or thyroid function
  • Pregnancy detected during screening or follow-up.

About this study

Official title: Effect of Supplementation of Two Doses of L-selenomethionine (Semet; 80 and 160 mcg) Versus Placebo in Patients With Chronic Autoimmune Thyroiditis (AIT) With Normal Thyroid Function.

Over the past 10 years, several clinical studies have suggested that selenium supplementation may influence the natural history of AIT. Recently, Interferon gamma (IFNγ)-inducible chemokines (CXCL-9, -10 and -11) were shown to be elevated in the AIT patients. The aim of this prospective, randomized, controlled study is to evaluate the effect of two different doses of selenomethionine (80 or 160 mcg) versus placebo in euthyroid women with AIT, in terms of reduction of anti-thyroid antibodies and improvement of thyroid hypoechogenicity, over 24 months. Serum levels of selenium, CXCL-9, -10 and -11 and their regulators, Tumor necrosis factor alpha (TNFα) and INFγ, thyroid function and volume and the quality of life of AIT patients are also evaluated.

Being tested
Selenomethionine, Placebo
Medical subject headings
Hashimoto Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SelenomethionineDietary supplement

  • PlaceboOther

Study groups in NCT02302768
Study groupRoleWhat they receive
PlaceboPlacebo comparatorPatients randomized to receive same pharmaceutical form (capsule) used for the two Semet groups, with the same excipients but the active drug.
Receives: Other: Placebo
80-SemetActive comparatorPatients randomized to receive selenomethionine at 80 mcg per day.
Receives: Dietary Supplement: Selenomethionine
160-SemetActive comparatorPatients randomized to receive selenomethionine at 160 mcg per day.
Receives: Dietary Supplement: Selenomethionine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Reduction of anti-thyroid antibodies

    Anti thyroperoxidase and thyroglobulin antibodies are measured by a chemiluminescent assay. Any statistically significant decrease of one or both antibody values compared to the baseline is considered a reduction relevant to the study outcome.

    Measured: 12 months

  2. Improvement of thyroid echogenicity

    High-resolution sonograhic images are captured, converted into a spectrum of gray-scale pixels (gsp) ranging from 0 (lowest echogenicity) to 255 (highest echogenicity) and a mean value is then obtained. Any statistically significant increase of the gsp compared to the baseline is considered an improvement relevant to the study outcome.

    Measured: 12 months

Secondary outcomes (1)
  1. Prevention or reduction of the incidence of hypothyroidism

    Defined by a significant lower number of new subclinical or overt hypothyroidism cases in the two Semet groups compared to the placebo group.

    Measured: 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 Nov 2014 (estimated)
  2. Study startDec 2012
  3. Primary completionJan 2014
  4. Study completionJan 2015 (estimated)

Resources

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Participant
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02302768
Sponsor's protocol ID
SELENIO 2012
Status last verified
Nov 2014
First submitted
20 Nov 2014
Last updated
27 Nov 2014
Results posted
No
Data monitoring committee
No

Publications

  • Rayman MP. Selenium and human health. Lancet. 2012 Mar 31;379(9822):1256-68. doi: 10.1016/S0140-6736(11)61452-9. Epub 2012 Feb 29.

    PubMed 22381456
  • Nacamulli D, Petricca D, Mian C. Selenium and autoimmune thyroiditis. J Endocrinol Invest. 2013 Nov;36(10 Suppl):8-14.

    PubMed 24419054
  • Rotondi M, Chiovato L. The chemokine system as a therapeutic target in autoimmune thyroid diseases: a focus on the interferon-gamma inducible chemokines and their receptor. Curr Pharm Des. 2011;17(29):3202-16. doi: 10.2174/138161211798157559.

    PubMed 21864266

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Selenomethionine in people with Thyroiditis Autoimmune, run by University of Siena.

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 1 inclusion and 4 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: status not confirmed, as of the sponsor's last update on 27 Nov 2014. Status can change between updates, so confirm with the study contact before making plans.

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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Results are not available in the source record.

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?

Reduction of anti-thyroid antibodies (time frame: 12 months). The study lists 2 primary outcomes in all. 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 NCT02302768, which also lists 3 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 27 Nov 2014.

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