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RECRUITING
NCT06826365

Immune Cell Populations in the Endometrium

Sponsor: Jagiellonian University

View on ClinicalTrials.gov

Summary

Specialized immunological studies in the diagnostics of idiopathic infertility and recurrent miscarriages have limited applicability, as the role of the immune system in these conditions is not thoroughly understood. In ovulatory cycles, changes occur in the populations of uterine lymphocytes, which may influence the receptivity of the endometrium and the implantation of the embryo. Particularly notable are the changes in natural killer (NK) cells, which reach their peak during the luteal phase and regulate the invasion of the trophoblast. The dominant NK cells exhibit a CD56bright phenotype and differ in cytokine profiles from peripheral blood cells. Cyclical changes also affect macrophages and T lymphocytes; however, it is unclear whether their proportions differ in women with reduced fertility. There is a need to investigate how the composition of lymphocytes in blood influences the populations in the endometrium. The aim of this study is to analyze the correlation between peripheral and endometrial lymphocytes in women with idiopathic infertility and recurrent miscarriages, compared to fertile women.

Official title: Analysis of Immune Cell Populations in the Endometrium and Peripheral Blood in Women With Reduced and Normal Fertility

Key Details

Gender

FEMALE

Age Range

18 Years - 45 Years

Study Type

OBSERVATIONAL

Enrollment

50

Start Date

2025-07-01

Completion Date

2026-06-30

Last Updated

2026-03-19

Healthy Volunteers

Not specified

Interventions

DIAGNOSTIC_TEST

Percentage distribution of immune system cells in peripheral blood

Assessment of the percentage distribution of the immune system cell population in peripheral blood by flow cytometry

DIAGNOSTIC_TEST

Percentage distribution of immune system cells in endometrium

Assessment of the percentage distribution of the immune system cell population in endometrium by flow cytometry

Locations (1)

Jagiellonian Univeristy

Krakow, Poland