Interaction Between Decidual Cells and NK Cells in Endometriosis

ConditionEndometriosis
Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexFemale
Age18+
SponsorHopital Foch

About this trial

Endometriosis is a chronic gynecological disease characterized by the presence of endometrial-like tissue outside the uterus and is frequently associated with pelvic pain and infertility. Increasing evidence suggests that immune dysfunction may contribute to the development and persistence of the disease.

The purpose of this prospective case-control study is to compare immune cell characteristics in women with deep endometriosis and women without endometriosis during the secretory phase of the menstrual cycle. Participants will undergo collection of clinical data, blood samples, endometrial samples, and vaginal microbiota samples. For participants undergoing clinically indicated pelvic surgery, additional biological samples may be collected during the procedure. The study aims to improve understanding of the immune mechanisms involved in endometriosis and to identify potential biomarkers associated with the disease.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Endometriosis Group

Female participant aged 18 years or older.

Confirmed diagnosis of deep endometriosis by imaging or surgery.

Pelvic pain and/or severe dysmenorrhea (Visual Analog Scale > 4).

Disqualifiers

Current infection.

Active cancer.

Active autoimmune disease.

Concomitant hormonal treatment.

Trial design

Design model

Parallel

Treatments tested in this trial

  • Biological Sample Collection

    Procedure/Surgery

    Collection of blood samples, endometrial samples, vaginal microbiota samples, and surgical specimens when clinically indicated for immunological and biomarker analyses.

Treatment groups

50 Participants
are divided into 2 treatment groups
Group A: Endometriosis GroupExperimental treatment 1 intervention
Group B: Control GroupActive comparator 1 intervention

Trial outcomes

Primary outcomes

1

CD39 Expression on Natural Killer Cells in Endometrial and Peritoneal Samples

Comparison of CD39 expression on natural killer (NK) cells in endometrial and peritoneal samples collected from women with deep endometriosis and women without endometriosis.

Time frame
At sample collection during the secretory phase of the menstrual cycle (Days 16-24)

Secondary outcomes

1

NK Cell Cytotoxic Function

Assessment of NK cell cytotoxic activity through degranulation markers and cytokine production in biological samples.

Time frame
At sample collection during the secretory phase of the menstrual cycle (Days 16-24)
2

Endometrial and NK Cell Interactions

Evaluation of interactions between endometrial cells and NK cells using tissue-based analyses.

Time frame
At sample collection during the secretory phase of the menstrual cycle (Days 16-24)
3

Ex Vivo Modulation of NK Cell Function

Evaluation of the effects of cytokine stimulation on NK cell function and endometrial cell responses in laboratory assays.

Time frame
Following sample collection, up to study completion (16 months)
4

Association Between Hormonal Levels and NK Cell Profile

Correlation of estrogen and progesterone levels with NK cell characteristics and immune markers.

Time frame
At sample collection during the secretory phase of the menstrual cycle (Days 16-24)

Other outcomes

Sponsors and contacts

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