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Maternal and Fetal Compatibility in Assisted Reproductive Technology (ART)-Oocyte Donor Influences Live Birth Rate

Maternal Killer Cell Immunoglobulin-like Receptors (KIR) and Fetal (Human Leukocyte Antigen) HLA-C Compatibility in ART-oocyte Donor Influences Live Birth Rate a Prospective Controlled Cohort Study

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02718105
Enrollment
200
Registered
2016-03-24
Start date
2022-01-01
Completion date
2022-08-01
Last updated
2022-08-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Infertility

Keywords

KIR HLA-C, ART

Brief summary

Has the maternal KIR haplotype an impact in pregnancy, miscarriage and live birth rates per embryo transfer in donor oocytes -ART by paternal and oocyte donor HLA-C?

Detailed description

The combination of maternal KIR haplotype and parental, donors HLA-C, could predict which couple can benefit for the selection of single embryo transfer (SET)/double embryo transfer (DET), or donor selection by HLA-C in ART, in order to increase the live birth rate (LBR)/cycle since HLA-C1/C1 donors are predicted to be safer and C2/C2 males or oocyte donors may be mor dangerous as identified by epidemiological studies

Interventions

GENETICKIR HLAC determinations

We will take blood samples for KIR HLA-C determinations.

Sponsors

IVI Madrid
Lead SponsorOTHER

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* BMI between 19 - 27 kg/m2 * Blastocyst embryo transfer previous. * Normal karyotype, thrombophylic and immunological results. * Normal clinical history, viral serology, hormonal analysis (TSH, T4, prolactin, estrogen, progesterone), spermiogram, sperm FISH and pelvic ultrasound results.

Exclusion criteria

* Pregnancy women. * Psychiatric disorders. * Uterus alterations. * Polycystic ovary syndrome * Genetic and autoimmune diseases. * Infectious diseases. * Corticoid and immunosuppressant treatments previous.

Design outcomes

Primary

MeasureTime frameDescription
Compatibility maternal fetal KIR HLA-C2 yearsKIR haplotype regions will be defined by the presence of the following KIR genes: Cen-A/2DL3: Tel-A/3DL1 and 2DS4; Cen-B/2DL2 and 2DS2; Tel-B/2DS1 and 3DS1. The HLA-C ligands for KIRs will be divided into 2 groups: HLA-C1 and HLA\_C2

Countries

Spain

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026