IRCT20240119060732N1 IRCT 2024-01-28 Tehran University of Medical Sciences Effect of intrauterine injection of platelet-rich plasma on pregnancy outcome Comparing the effect of intrauterine injection of platelet-rich plasma on pregnancy outcome in IVF candidate women with recurrent implantation failure and thin endometrium 2024-02-29 anticipated 90 Complete https://irct.ir/trial/75077 interventional Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment. 3 Female infertility of uterine origin. Intervention 1: Intervention group: 24 to 48 hours before the embryo transfer, 5 cc of platelet-rich plasma, which is prepared from the person's peripheral blood, is poured into the uterus using an intrauterine insemination (IUI) catheter. Intervention 2: Control group: Before the embryo transfer, no extra intervention is performed for the patient and the patient returns on the day of the embryo transfer. Yes - There is a plan to make this available What will be shared: All data is potentially shareable after unidentified participants. When: After the manuscript is published. To whom: No limitations. Conditions: The data is only available to the project manager, Dr. Firoozeh Akbari Asbagh, and any analysis must be done with her opinion. Where to obtain: The data is only available to the project manager, Dr. Firoozeh Akbari Asbagh, and any analysis must be done with her opinion. How to obtain: Any request must be sent by e-mail with its proposal to Dr. Firoozeh Akbari Asbagh. Comments: