Effect of Intrauterine Administration of Autologous PBMC Modulated With IFNt on IVF Outcome

NCT ID: NCT05775198

Last Updated: 2025-05-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

300 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-03-01

Study Completion Date

2026-04-28

Brief Summary

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The goal of this clinical trial is to test the effect of modulated specialised immune cells isolated from the patients' own blood when administered to the uterus before embryo transfer on the IVF outcome (implantation, pregnancy and live birth rates).

To achieve this, blood will be obtained from eligible participants. Target cells will be isolated and incubated with the tested modulator for 24h, and returned to the uterine cavity 1 day prior to embryo transfer.

Researchers will compare the reproductive outcome of the tested intervention to that of a control group who will not receive the investigated cell treatment prior to embryo transfer.

Detailed Description

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Female patients with no known uterine pathologies scheduled to undergo embryo transfer will be identified through patient records and invited to participate in the study. Five days after luteinizing hormone (LH) surge, peripheral blood mononuclear cells (PBMC) will be isolated from these patients' peripheral blood by density gradient centrifugation and suspended in culture medium. The obtained PBMC will be incubated with 500 IU/ml IFNt at 37˚C for 24 hours. This cell suspension will be carefully introduced in the uterine cavity by catheter on day 6 post LH surge. Embryo transfer will be performed the following day. A suitable age-matched control group will be recruited that will undergo embryo transfer but will not be administered immunomodulated PBMC prior to the transfer.

Reproductive outcomes in terms of rate of implantation, rate of clinical pregnancy and live birth rates will be recorded and compared between the two groups.

Data analysis will be performed by investigators blind to the patient group.

Conditions

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Infertility, Female IVF

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Investigators Outcome Assessors
Data analysis will be performed by investigators blind to the patient group.

Study Groups

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Intrauterine administration of PBMC immunomodulated with IFNt

Approximately 9 ml whole blood will be collected from each patient 5 days post LH peak by peripheral venipuncture using a 21G butterfly catheter affixed via vacutainer to negative pressure receiving tubes (BD vacutainer acid-citrate-dextrose (ACD-A), REF:366645). PBMC will be isolated by density gradient centrifugation in room-temperature centrifuge set to 400 g for 25 min. After washing the obtained PBMCs, they will be suspended in RPMI 1640 supplemented with 10% HSA (human serum albumin) and incubated in the presence of 500 IU/ml IFNt for 24 h at 37˚C. On day 6 after LH peak, this cultured cell suspension will be carefully introduced in the uterine cavity by catheter. The following day (LH+7), patients will undergo a standard embryo transfer (ET) procedure.

Group Type EXPERIMENTAL

PBMC immunomodulated with IFNt

Intervention Type BIOLOGICAL

Autologous peripheral blood mononuclear cells (PBMC) isolated using a standard protocol will be cultured in the presence of interferon tau (IFNt) for 24 hours at 37 ˚C and administered in the uterine cavity of patients 1 day prior to embryo transfer.

Control Group

Participants will undergo standard embryo transfer procedure with no intervention.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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PBMC immunomodulated with IFNt

Autologous peripheral blood mononuclear cells (PBMC) isolated using a standard protocol will be cultured in the presence of interferon tau (IFNt) for 24 hours at 37 ˚C and administered in the uterine cavity of patients 1 day prior to embryo transfer.

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Participating in Assisted Reproduction Treatment
* Having primary infertility
* Having regular menstrual cycles
* Scheduled to undergo embryo transfer of euploid embryos only

Exclusion Criteria

* Uterine pathologies
* Endometrial bacterial infections
* Active endometrial inflammation
* Polycystic ovary syndrome
* Presence of auto antibodies such as anti-TPO (thyroid peroxidase), anti-TG (thyroglobulin), ACA (anticentromere antibodies), APA (antiphospholipid antibodies), ANA (antinuclear antibodies), and anti-dsDNA
* Presence of mutations involving the coagulation system such as deficiency of factor XII, Pro C, Pro S
* Oncological condition
* Positive HIV (human immunodeficiency virus), HCV (hepatitis C virus) or HBV (hepatitis B virus) tests
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Nadezhda Women's Health Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Nadezhda Women's Health Hospital

Sofia, Sofia, Bulgaria

Site Status RECRUITING

Countries

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Bulgaria

Central Contacts

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Dimitar Parvanov, PhD

Role: CONTACT

885944618 ext. 359

Facility Contacts

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Georgi Stamenov, MD

Role: primary

888269839 ext. 359

Margarita Ruseva, MSc

Role: backup

889150267 ext. 359

Other Identifiers

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6/28022023

Identifier Type: -

Identifier Source: org_study_id

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