Patients with a history of recurrent implantation failure who are planning a frozen embryo transfer (FET) are enrolled into the program. Patients are randomized to an endometrial biopsy prior to starting estrogen to prepare for the transfer of warmed vitrified embryos or to routine care.
Patients who failed to achieve a clinical pregnancy after embryo transfer of at least three high quality embryos in at least two IVF or FET cycles and for whom their last failed cycle was a frozen embryo transfer are offered the opportunity to enroll in this study. All patients will follow our routine FET protocol. On a randomized basis, selected patients will undergo an endometrial biopsy using a Pipelle disposable device in the week prior to starting estrogen to prepare her endometrium.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
endometrial biopsy
Implantation rate
Sacs seen in early ultrasound divided by the number of embryos transferred
Time frame: within 6 months after recruitment
clinical pregnancy rate
Number of patients with ultrasound evidence of pregnancy divided by the number of embryo transfers
Time frame: within 6 months after recruitment
ongoing pregnancy rate
Viable or delivered pregnancies at conclusion of study divided by the number of embryo transfers
Time frame: within 18 months of recruitment
biochemical pregnancy rate
number of positive pregnancy test divided by number of embryo transfers
Time frame: within 6 months after recruitment
miscarriage rate
number of losses of clinical pregnancies divided by number of clinical pregnancies
Time frame: within 18 months after recruitment
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.