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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04052438
Other study ID # 1405-MAD-026-JG
Secondary ID
Status Completed
Phase
First received
Last updated
Start date January 2015
Est. completion date January 2017

Study information

Verified date August 2019
Source IVI Madrid
Contact n/a
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The involvement of the immune system in the process of implantation and its modulation as a therapeutic line in these alterations, failure of implantation and repetition abortion are controversial and make it necessary to conduct clinical studies properly led and with a study population chosen by strict criteria in order to better understand the involvement of the different innate and adaptive immune mechanisms in the field of reproductive medicine and especially in clinically expressed failures recurrent implantation failure and recurrent abortions.


Description:

A prospective pilot study is proposed in patients with recurrent implantation failure and recurrent abortions undergoing assisted reproductive techniques.

The main objective of this study is to determine the involvement of key effectors of innate immune response in the endometrium that induces a pro-inflammatory response, and to be able to know in particular what is the distribution of KIR receptors in the uNK and the HLA-C typing in patient-mother, egg/semen donors, male-father, abortive remains, live newborns.

To this end, the distribution of KIR and HLA-C receptors will be studied two arms/patient groups, divided from a population chosen according to inclusion/exclusion criteria:

- Group I: group recurrent abortions.

- Group II: group recurrent implementation failure. The study population will include subjects of older age (aged between 18 and 37 years) who will be divided into 2 total Study Arms N x 200 (n x 100 for each arm).


Recruitment information / eligibility

Status Completed
Enrollment 200
Est. completion date January 2017
Est. primary completion date December 2016
Accepts healthy volunteers No
Gender Female
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria in recurrent implantation failure:

- Body mass index between 19 and 27 kg/m2

- Patients with 3 or more IVF failures following transfer of good quality embryos or with 2 or more failures following embryo transfer in egg donation cycles.

- At least one embryo transfer is required to have been made in a blastocyst state (embryo on day 5) and with the current partner/donor.

- Study of normal karitype..

- Normal thrombophilia study.

- Vaginal exudate (Chlamydia, ureaplasma) normal

- Normal immune study.

- No hormone treatment in the two months prior to inclusion in the study.

InclusiĆ³n criteria in recurrent abortion:

- Body mass index between 19 and 27 kg/m2

- Patients with 3 or more recurrent abortions, natural gestations or after transfer of good quality embryos (own or ovodonation)

- Study of normal karitype.

- Normal thrombophilia study.

- Vaginal exudate (Chlamydia, ureaplasma) normal

- Normal immune study.

- No hormone treatment in the two months prior to inclusion in the study.

Exclusion Criteria:

- Pregnant or lactating women.

- They cannot offer cooperation.

- Participation in a study or clinical trial during the 3 months prior to inclusion.

- Patients with fibromes.

- Patients with PCOS.

- Patients with some genetic alteration (altered karitype, cystic fibrosis, multiple sclerosis, rheumatoid arthritis...)

- Patients chronic infectious disease.

- Patients in maintenance treatment with immunosuppressants.

- Patients who have received systemic corticosteroids in the last 4 weeks.

- Patients diagnosed with chronic lymphoproliferative disease.

Study Design


Related Conditions & MeSH terms


Intervention

Diagnostic Test:
HLA-C and KIR determination for patients, couples, oocyte or semen donors, abortive tissue and newborn.


Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
IVI Madrid

References & Publications (3)

Adams EJ, Parham P. Species-specific evolution of MHC class I genes in the higher primates. Immunol Rev. 2001 Oct;183:41-64. Review. — View Citation

Apps R, Murphy SP, Fernando R, Gardner L, Ahad T, Moffett A. Human leucocyte antigen (HLA) expression of primary trophoblast cells and placental cell lines, determined using single antigen beads to characterize allotype specificities of anti-HLA antibodie — View Citation

Arck PC, Hecher K. Fetomaternal immune cross-talk and its consequences for maternal and offspring's health. Nat Med. 2013 May;19(5):548-56. doi: 10.1038/nm.3160. Epub 2013 May 7. Review. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Maternal genetic compatibility profile fetal KIR-HLA-C KIR AA, KIR AB, KIR BB 2 years