Overview Sildenafil Citrate in Frozen Embryo Transfer Status: Completed Trial end date: 2016-06-01 Target enrollment: Participant gender: Summary Comparison between usage of Sildenafil citrate with estradiol valerate or estradiol valerate alone in endometrial preparation and outcome of frozen-thawed embryo transfer cycles. Phase: Phase 2 Details Lead Sponsor: Omar Ahmed El Sayed SaadTreatments: Citric AcidEstradiolEstradiol 17 beta-cypionateEstradiol 3-benzoateEstradiol valeratePolyestradiol phosphateSildenafil Citrate