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Recruiting NCT05421364

NCT05421364 Effects of Intrauterine Administration of Autologous PBMC on the Endometrial Cells Populations

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Clinical Trial Summary
NCT ID NCT05421364
Status Recruiting
Phase —
Sponsor Nadezhda Women's Health Hospital
Condition Female Infertility
Study Type INTERVENTIONAL
Enrollment 300 participants
Start Date 2023-12-09
Primary Completion 2026-01-03

Eligibility & Interventions

Sex Female only
Min Age 20 Years
Max Age 50 Years
Study Type INTERVENTIONAL
Interventions
Intrauterine administration of autologous peripheral blood mononuclear cells (PBMC)

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

This trial targets 300 participants in total. It began in 2023-12-09 with a primary completion date of 2026-01-03.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The behaviour of the endometrium during its receptive phase is highly dependent on the endometrial cell type composition. Each cell type has its role in the endometrial preparation for the invading embryo. Alteration in the immune cells dialogue could be the main reason for unsuccessful implantation in certain patients. Immune cell homeostasis is often improved by intrauterine administration of autologous PBMC. There have been numerous reports on the positive effects of the intrauterine administration of autologous PBMC on the IVF outcomes (embryo implantation and ongoing pregnancy success). However, there is little data on the direct effect of the PBMC administration on the cell composition of the endometrium. This study will focus on the changes in the endometrial cell populations by PBMC treatment that could lead to IVF outcome improvement. The aim of this project is to analyze the effect of intrauterine administration of autologous PBMC on the endometrial cell populations and on the IVF outcome parameters (implantation and ongoing pregnancy success as IVF outcome variables).

Eligibility Criteria

Inclusion Criteria: * Participating in Assisted Reproduction Treatment * Presenting altered endometrial immune profile * Having primary infertility * Having regular menstrual cycles * Embryo transfer of euploid embryos Exclusion Criteria: * Uterine pathologies * Endometrial Bacterial infections * Active endometrial inflammation * Polycystic ovary syndrome * Presence of auto anti-bodies such as anti-TPO, anti-TG, ACA, APA, ANA, and anti-dsDNA * Presence of mutations involving the coagulation system such as deficiency of factor XII, Pro C, Pro S * Cancer diagnostics * Positive HIV, HCV or HBV tests

Contact & Investigator

Central Contact

Georgi Stamenov, MD

✉ g.stamenov@abv.bg

📞 +359888269839

Frequently Asked Questions

Who can join the NCT05421364 clinical trial?

This trial is open to female participants only, aged 20 Years or older, up to 50 Years, studying Female Infertility. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT05421364 currently recruiting?

Yes, NCT05421364 is actively recruiting participants. Contact the research team at g.stamenov@abv.bg for enrollment information.

Where is the NCT05421364 trial being conducted?

This trial is being conducted at Sofia, Bulgaria, Sofia, Bulgaria.

Who is sponsoring the NCT05421364 clinical trial?

NCT05421364 is sponsored by Nadezhda Women's Health Hospital. The trial plans to enroll 300 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: November 2026  ·  Data Methodology