IRCT2017061434525N1 IRCT 2017-10-07 Iranian academic center for education culture and research Effect of autologous platelet-rich plasma on improving pregnancy outcomes in repeated implantation failure :A randomized controlled trial Effect of autologous platelet-rich plasma on improving pregnancy outcomes in repeated implantation failure: A randomized controlled trial 2017-05-01 anticipated 118 Complete https://irct.ir/trial/26361 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: The method is simple randomization and using the tool of sealed envelopes. Participants select one of the envelopes and deliver it to the relevant observer. The letters A and B are written inside the envelope and the participants are divided into two groups, Blinding description: Patients are unaware of the assignment to the groups. The examining physician and sonographer are unaware of the assignment of the patient to the groups. The analyzer is only aware of groups A and B and is not aware of the control and intervention group. 3 Infertility. Intervention 1: intervention group: Injection of autologous platelet-rich plasma into the uterine cavity before embryos are transferred into the uterine cavity. Intervention 2: Control group: the standard procedure and without autologous platelet-rich plasma injection, the embryos are transferred into the uterine cavity. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is misuse