Clinical utility of the endometrial receptivity analysis in women with prior failed transfers.

Purpose: To determine the utility of the endometrial receptivity analysis (ERA) in women with prior failed embryo transfers (ET).

Methods: This was a retrospective study of patients who underwent an ERA test with a subsequent frozen ET. Women were classified based on their indication for an ERA test: (1) ≥ 1 prior failed ET (cases), or (2) as a prophylactic measure (controls).