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Ovarian FailureNCT06394466

Thyroid Function and Autoimmunity in Subfertility Women and Assisted Reproductive Therapy

An observational study of Ovarian Failure and Thyroid Diseases, run by Rio de Janeiro State University at 1 site in Brazil.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The assessment of ovarian reserve is well established based on the dosage of anti-Mullerian hormone (AMH). The clinical applicability of detecting thyroid autoantibodies levels has been discussed as a potential marker of low-grade inflammation. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
Conditions the study is for
Ovarian Failure, Thyroid Diseases
What is being tested?
Non Applicable
How many people
453 participants
Where
1 siteBrazil
Study dates
1 Jul 2021to 31 Jul 2023
How long will I take part?
30 Days
Phase
Observational
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 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Women who looked for assisted reproduction and went through the process of ovarian stimulation and oocyte retrieval. The study was carried out with data from the first initial clinic appointment at Vida Assisted Reproduction clinic - Fertility Center (Rio de Janeiro, Brazil). Data collected from the patients in the initial clinical history were: chronological age, cause(s) of infertility, comorbidities and use of medications.

Who may be able to join

  • Inclusion criteria were: women attended in the outpatient clinic with baseline exams before ART and during ovarian stimulation between July 2021 and July 2023

Who cannot join

  • Exclusion criteria were: patients with known clinical hypothyroidism, patients using medications that may influence the hypothalamic-pituitary-thyroid axis, such as glucocorticoids in supraphysiological doses; or that could interfere with thyroid hormone metabolism (lithium, amiodarone and aspirin in anti-inflammatory dosages).

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Vida Assisted Reproduction clinic - Fertility Center

    Rio de Janeiro, Rio de Janeiro, 22631-000

Other trials in Brazil

About this study

Official title: Evaluation of Thyroid Function and Autoimmunity in Subfertility Women and Thyroid Hormone Levels in the First Trimester of Assisted Reproduction

The assessment of ovarian reserve is well established based on the dosage of anti-Mullerian hormone (AMH). The clinical applicability of detecting thyroid autoantibodies levels has been discussed as a potential marker of low-grade inflammation. There are no studies about the detection of these autoantibodies in infertile women. Our objective is to evaluate the association between ovarian reserve and thyroid function and its autoimmunity in infertile women seeking for assisted reproductive treatment (ART).Evaluation ot thyroid function in the first trimester in also be evaluated in women submitted to ART.

Read the detailed description

The assessment of ovarian reserve is well established based on the dosage of anti-Mullerian hormone (AMH). The clinical applicability of detecting thyroid autoantibodies levels has been discussed as a potential marker of low-grade inflammation. There are no studies about the detection of these autoantibodies in infertile women. Evaluation of TSH profile during ovarian stimulation in ART is also debated in literature with conflicting results. Our objective is to evaluate the association between ovarian reserve and thyroid function and its autoimmunity in infertile women seeking for assisted reproductive treatment (ART) and TSH profile during ovarian stimulation and during the first trimester.

Being tested
Non Applicable
Keywords
Anti mullerian hormone, Thyroid autoimmunity, Antithyroid antibodies, Infertility
Medical subject headings
Thyroid Diseases, Infertility

What participants receive

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

  • Non ApplicableOther

    Non Applicable

Study groups in NCT06394466
Study groupRoleWhat they receive
Women undergoing ovarian stimulation in our ART clinicInclusion criteria were: women attended in the outpatient clinic with baseline exams before ART and during ovarian stimulation between July 2021 and July 2023. Exclusion criteria were: patients with known clinical hypothyroidism, patients using medications that may influence the hypothalamic-pituitary-thyroid axis, such as glucocorticoids in supraphysiological doses; or that could interfere with thyroid hormone metabolism (lithium, amiodarone and aspirin in anti-inflammatory dosages).
Receives: Other: Non Applicable

What is being measured

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

  1. TSH levels during assisted reproductive therapy and first trimester

    TSH, free and total thyroxine, and ioduria in the first trimester

    Measured: 90 days

Secondary outcomes (2)
  1. Association between AMH levels and detectable categories of TPO-Ab or Tg-Ab

    AMH, TPO-Ab and Tg-Ab dosages

    Measured: 30 days

  2. Correlation between AMH and TSH

    AMH and TSH dosages

    Measured: 30 days

Timeline

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

  1. First posted1 May 2024
  2. Study start1 Jul 2021
  3. Primary completion31 Jul 2023
  4. Study completion31 Jul 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Other
Enrolment
453 participants (actual)
Target duration
30 Days
IDs, dates and publications
ClinicalTrials.gov ID
NCT06394466
Sponsor's protocol ID
Y201420y
Status last verified
Apr 2024
First submitted
27 Apr 2024
Last updated
1 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Ovarian Failure and Thyroid Diseases, run by Rio de Janeiro State University at 1 site in Brazil.

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 1 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 1 May 2024. 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 Brazil. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

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?

TSH levels during assisted reproductive therapy and first trimester (time frame: 90 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 1 May 2024.

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