IRCT20110731007165N4.

Study name	Comparison of the effect local endometrial injury on implantation and pregnancy rate in follicular versus luteal phases of the menstrual cycle in patients undergoing frozen embryo transfer with a history of at least one IVF failure
Methods	RCT
Participants	Women undergoing frozen embryo transfer with a history of at least one IVF failure
Interventions	Intervention: local endometrial injury in the follicular phase Control: local endometrial injury in the luteal phase
Outcomes	Chemical pregnancy rate (bHCG), implantation rate (ultrasound), ongoing pregnancy rate (12 weeks)
Starting date	Unclear; expected recruitment start date is 23 September 2017
Contact information	Ladan Kashani: +98 21 8828 1866, kashani_ladan@tums.ac.ir Dr.Zahra Parsaeian: +98 21 7771 9922, zparsaiyan6@gmail.com
Notes	Trial registration status on 1 July 2020: recruitment complete Author correspondence: attempted, however no response was received