Subclinical Hypothyroidism and Chronic Inflammation in PCOS

NCT ID: NCT05842096

Last Updated: 2025-04-15

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 158 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2024-01-01
• Study Completion Date: 2024-12-30

Brief Summary

Chronic inflammation in polycystic ovary syndrome (PCOS) may be the result of dysregulation of cytokine production (due to insulin resistance, excess visceral fat and hyperandrogenemia), i.e., overproduction of pro-inflammatory factors (e.g. TNF, IL-1, IL-6) in relation to anti-inflammatory ones (IL-10). This condition may be an important link between obesity and insulin resistance, which is crucial in the etiopathogenesis of the syndrome. However, it is not known whether it results from the tendency to accumulate adipose tissue or is a feature of the syndrome itself. Concomitant endocrinopathies, i.e. obesity, dyslipidemia, insulin resistance, diabetes and thyroid diseases, may additionally influence the activity of chronic inflammation. There is no data indicating the relationship between chronic inflammation and PCOS phenotypes, the severity of metabolic disorders, ovarian reserve and the influence of thyroid function on its activity in PCOS.

Detailed Description

The aim of the study is:

i) to assess and compare serum concentrations of selected inflammatory markers (leucocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha) in women with different phenotypes PCOS and hypothalamic-pituitary-ovarian axis dysfunction (HPOD) (control), ii) to evaluate the impact of subclinical hypothyroidism (defined as TSH>2.5 uIU/ml, fT3 3,1-6,80 pmol/l, fT4 12,0-22,0 pmol/l), with the presence and absence of circulating antithyroid antibodies (a-TPO and a-TG), on the balance between anti- and pro-inflammatory factors in women with different PCOS and HPOD phenotypes, iii) to assess the impact of imbalance between anti- and pro-inflammatory factors in women with different PCOS and HPOD phenotypes on ovarian reserve indices, expressed as FSH and AMH concentrations.

The study population will be characterized in terms of demographic (age, BMI), gynecological (age of first and last menstrual period, cycle length, history of reproductive organ surgeries, ultrasound measurements of endometrial width, ovarian volume) and obstetrics (pregnancies, childbirth, miscarriages) data. PCOS syndrome (and its phenotypes) will be recognized by the Rotterdam criteria. HPOD will be diagnosed according to WHO criteria. During hospitalization, blood samples will be collected for scheduled analyzes (30 ml of blood in total).

Conditions

PCOS (Polycystic Ovary Syndrome) of Bilateral Ovaries; Subclinical hypothyroïdism; Hypothalamic-Pituitary-Gonadal Axis Dysfunction

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: DIAGNOSTIC
• Blinding Strategy: NONE

Study Groups

Polycystic ovary syndrome (PCOS)

Women meeting the Rotterdam-ESHRE-ASRM criteria for a diagnosis of PCOS

Group Type: ACTIVE_COMPARATOR

Measurement and comparison of leucocytosis and concentrations of CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha in both study arms

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare the above parameters of peripheral blood in both arms of the study

Evaluation of the impact of subclinical hypothyroidism, with present/ absent antithyroid antibodies, on the balance between anti- and pro-inflammatory factors in women in both study arms

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha depending on the blood concentrations of TSH, a-TPO and a-TG in women in both study arms

Assessment of the impact of imbalance between anti- and pro-inflammatory factors in women with different PCOS and HPOD phenotypes on ovarian reserve indices

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha and AMH, FSH in women in both study arms

Hypothalamic-Pituitary-Ovarian Axis Dysfunction (HPOD)

Women meeting the WHO criteria for a diagnosis of HPOD

Group Type: ACTIVE_COMPARATOR

Measurement and comparison of leucocytosis and concentrations of CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha in both study arms

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare the above parameters of peripheral blood in both arms of the study

Evaluation of the impact of subclinical hypothyroidism, with present/ absent antithyroid antibodies, on the balance between anti- and pro-inflammatory factors in women in both study arms

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha depending on the blood concentrations of TSH, a-TPO and a-TG in women in both study arms

Assessment of the impact of imbalance between anti- and pro-inflammatory factors in women with different PCOS and HPOD phenotypes on ovarian reserve indices

Intervention Type: DIAGNOSTIC_TEST

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha and AMH, FSH in women in both study arms

Interventions

Measurement and comparison of leucocytosis and concentrations of CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha in both study arms

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare the above parameters of peripheral blood in both arms of the study

Intervention Type: DIAGNOSTIC_TEST

Evaluation of the impact of subclinical hypothyroidism, with present/ absent antithyroid antibodies, on the balance between anti- and pro-inflammatory factors in women in both study arms

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha depending on the blood concentrations of TSH, a-TPO and a-TG in women in both study arms

Intervention Type: DIAGNOSTIC_TEST

Assessment of the impact of imbalance between anti- and pro-inflammatory factors in women with different PCOS and HPOD phenotypes on ovarian reserve indices

A venous blood sample of approximately 10 ml will be collected in the morning after 8 hours of fasting to determine and compare blood levels of leukocytosis, CRP, procalcitonin, fibrinogen, ferritin, IL-1, IL-6, IL-10, TNF-alpha and AMH, FSH in women in both study arms

Intervention Type: DIAGNOSTIC_TEST

Eligibility Criteria

Inclusion Criteria

• age 18-45 years,
• cycle length <21 days or > 35 days,
• unsuccessful attempts to conceive for at least 12 months of regular intercourse with sonographically confirmed anovulation with excluded male, tubal and uterine infertility factors.

Exclusion Criteria

• absence of at least one ovary,
• previously diagnosed thyroid disease

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 45 Years
• Eligible Sex: FEMALE
• Accepts Healthy Volunteers: No

Sponsors

Jagiellonian University

OTHER

Sponsor Role: lead

Responsible Party

Iwona Magdalena Gawron

Ph.D., Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Robert Jach, Prof., Ph.D.

Role: STUDY_CHAIR

Jagiellonian University

Locations

Jagiellonian University Medical College, Department of Gynecology and Obstetrics

Krakow, , Poland

Countries

Poland

Other Identifiers

1072.6120.292.2022

Identifier Type: -

Identifier Source: org_study_id