MedTrace Logo

Maternal Embryo Interaction in Recurrent Miscarriages

NCT03156491 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 58

Last updated 2017-05-17

No results posted yet for this study

Summary

Background of the study:

The etiology of recurrent miscarriage (RM, defined as three or more consecutive miscarriages without any proven maternal or fetal cause), remains undiagnosed in more than 50% of cases. In these cases it is generally considered that a disturbance in the normal mother-embryo interactions is a causal factor. This disturbance may be based on a dysregulation of embryo invasiveness and/or decidual acceptance (e.g. altered decidualization; endometrial changes in preparation for the acceptance of a putative pregnancy). Moreover, dysfunctional maternal immune regulatory natural killer (NK) cells, implicated in tolerance induction and trophoblast invasion,may also underlie the occurrence of RM. The Selection Failure hypothesis for RM suggests that super-receptive endometrium (possibly due to increased embryo invasiveness and/or decidual acceptance and/or dysregulated immune cell function) may allow 'poor quality' embryos to implant and present as a clinical pregnancy before miscarrying. Fundamental knowledge on mechanisms of embryo implantation, decidual function and maternal immune reactivity in successful pregnancies has accumulated over the past 5 years. This study aims to investigate whether dysregulation of (one of) these mechanisms may underlie RM.

Objective of the study:

To test The Selection Failure hypothesis by assessing A) the degree of embryo invasiveness and decidual acceptance (the quality of decidualization, endometrium-embryo communication and endometrial stromal cell (ESC) migration) and B) the angiogenic capacity of decidual NK (dNK) cells, in order to elucidate the pattern of the mother-embryo equilibrium in women with RM.

Conditions

  • Recurrent Miscarriages

Sponsors & Collaborators

  • UMC Utrecht

    lead OTHER

Principal Investigators

  • Cobi J Heijnen, Prof. dr. · UMC Utrecht

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2010-06-30
Primary Completion
2011-07-31
Completion
2012-07-31

Countries

  • Netherlands

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03156491 on ClinicalTrials.gov