Retrospective analysis of personalized embryo transfer timing based on endometrial receptivity testing in patients with implantation failure

Personalized embryo transfer timing based on endometrial receptivity analysis mitigates the negative impact of previous failed cycles in repeated implantation failure patients: A single-center retrospective cohort study - ERA-RIF study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000056349

Enrollment

Registered

2024-12-03

Start date

2017-01-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

Repeated implantation failure (RIF) with no previous pregnancies after two or more embryo transfers

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: No previous pregnancies History of two or more failed ART cycles

Exclusion criteria

Exclusion criteria: Azoospermia Known chromosomal abnormalities Significant uterine abnormalities (fibroids or adenomyosis >5cm) Endometrial thickness <7mm on the day of ET Cases with only cleavage-stage embryos Cases with PGT-A embryos

Design outcomes

Primary

Measure	Time frame
Pregnancy rate (proportion of cases with blood hCG levels >100 mIU/mL confirmed four weeks after embryo transfer)	—

Secondary

Measure	Time frame
Ongoing pregnancy rate (proportion of cases with confirmed gestational sac and fetal heart beats by trans-vaginal ultrasound analysis after nine weeks of gestation)	—

Countries

Japan

Contacts

Public ContactShinnosuke Komiya

HORAC Grand Front Osaka Clinic Gynecology

powerhitter000@gmail.com0663778824

Outcome results