The Efficiency of Introducing Intrauterine Infusion of Autologous Platelet-Rich Plasma versus Granulocyte Colony-Stimulating Factor in Repeated Implantation Failure Patients: An Unblinded Randomised Clinical Trial

Background: Repeated implantation failure (RIF) refers to the condition where high quality embryos are unable tosuccessfully implant after multiple cycles of in vitro fertilization (IVF) treatment. The aim of this study is to investigatethe impact of intrauterine granulocyte colony-stimulating factor (G-CSF) and platelet-rich plasma (PRP) onpregnancy rate in patients with RIF. Materials and Methods: The present randomised clinical trial study was conducted at the IVF Centre of MehrMedical Institute in Rasht, Iran, from 2020 to 2022. The research consisted of 200 individuals who had experiencedmultiple failed cycles. These patients were randomised into two groups: intrauterine infusion of 1 ml of G-CSF andintrauterine infusion of 1 ml autologous PRP at least 48 hours before embryo transfer (ET). The groups were comparedin terms of implantation rate, and chemical, clinical, and ongoing pregnancy. Results: The implantation rate was significantly higher in patients who received PRP (P=0.016). Chemical pregnancy inthe PRP group was significantly higher than G-CSF group (P=0.003). Both clinical pregnancy and ongoing pregnancyrates were significantly higher in the PRP group (P=0.001) compared to the G-CSF group (P=0.02). Conclusion: The utilisation of PRP via intrauterine infusion is considerably more successful than G-CSF in enhancingpregnancy and live birth rates among patients with RIF.