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ENDORE (Endometrial Receptivity)

This clinical research study will investigate the biomarkers of endometrial receptivity, infertility and infertility treatment outcomes. A biomarker is a way to measure the health of a given body system or organ. This study seeks to understand the potential connections between a person’s microbiome (trillions of tiny organisms in the body, such as bacteria, fungi and viruses), diet and infertility.

Who is eligible to participate?

  • Ages 18–45
  • Diagnosis of polycystic ovary syndrome, unexplained infertility, endometriosis or recurrent pregnancy loss
  • Planning in-vitro fertilization cycle

Study participation involves:

  • Swabs for microbiome from urine, mouth, vagina, cervix, uterus, rectum collected in luteal phase of menstrual cycle (after ovulation and before your period starts)
  • Diet questionnaire
  • All study participation can be completed in a single visit.

For more information, please contact:


Fertility and Reproductive Health logo