NCT02710175

Brief Summary

Infertility is defined as the inability of a couple to achieve pregnancy over an average period of one year (in women under 35 years of age) or 6 months (in women above 35 years of age) of unprotected sexual intercourse. Infertility can be due to female, male reasons or both. It can be either primary or secondary. Thyroid dysfunction and autoimmune thyroiditis are known adverse risk factors for pregnancy as well as fertility, regardless of the presence of disease in women of reproductive age. In particular, hypothyroid women are at an increased risk of menstrual disorders and infertility because of altered peripheral estrogen metabolism, hyperprolactinaemia and abnormal release of gonadotropin-releasing hormone. The prevalence of subclinical hypothyroidism characterized by aberrant high serum thyroid-stimulating hormone (TSH) levels with normal free thyroxin (FT4) levels in infertile women are reported to be approximately 20% and it is a primary cause of subfertility. Indeed, average TSH levels in infertile women were reportedly higher than those in normal fertile women. And elevated serum TSH levels were associated with diminished ovarian reserve in infertile patients. Moreover, although levothyroxine replacement therapy for subclinical hypothyroidism in infertile patients remains debatable, thyroxin supplementation may improve fertility to successful pregnancy. This data suggests that hypothyroidism is strongly correlated with infertility (Velkeniers et al., 2013). On the other hand, female fecundity decreases with increasing age, primarily because of decreased ovarian function. Anti-mullerian hormone (AMH) is a dimeric glycoprotein belonging to the transforming growth factor-beta (TGF-B) super family, which act on tissue growth and differentiation. It is produced by the granulosa cells from pre-antral and small antral follicles. Ovarian research after oophorectomy showed that serum AMH levels were closely correlated with the number of primordial follicles; therefore, AMH is a suitable biomarker of ovarian age in women of reproductive age. Expectedly, ovarian function may be affected by impaired thyroid function, although this association has not been elucidated. In this study, we will evaluate the relationship between thyroid function and AMH levels by comparing them in infertile patients and healthy fertile women.

Trial Health

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Trial Health Score

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Enrollment
2

participants targeted

Target at below P25 for all trials

Status
unknown

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Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 1, 2015

Completed
29 days until next milestone

First Submitted

Initial submission to the registry

December 30, 2015

Completed
3 months until next milestone

First Posted

Study publicly available on registry

March 16, 2016

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2016

Completed
Last Updated

March 16, 2016

Status Verified

March 1, 2016

Enrollment Period

8 months

First QC Date

December 30, 2015

Last Update Submit

March 11, 2016

Conditions

Outcome Measures

Primary Outcomes (1)

  • TSH Levels in mIU/L

    1 year

Interventions

Eligibility Criteria

Age20 Years - 35 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)
Sampling MethodNon-Probability Sample
Study Population

Ain shams maternity patients in infertility unit

You may qualify if:

  • Age: 20-35 years
  • Diagnosed as primary infertility.
  • Duration of marriage more than 1 year.
  • Controls should be normal fertile women aged 20- 35 years had no history of treatment for infertility or thyroid disorders.

You may not qualify if:

  • Age: above 35 years old.
  • Women with ovarian dysfunction (PCO, post ovarian surgery).
  • Treated thyroid dysfunction (Autoimmune thyroiditis, hypothyroidism).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Infertility

Condition Hierarchy (Ancestors)

Genital DiseasesUrogenital Diseases

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Maghagha general hospital

Study Record Dates

First Submitted

December 30, 2015

First Posted

March 16, 2016

Study Start

December 1, 2015

Primary Completion

August 1, 2016

Last Updated

March 16, 2016

Record last verified: 2016-03