AUTHOR=Nero Camilla , Ciccarone Francesca , Pietragalla Antonella , Duranti Simona , Daniele Gennaro , Scambia Giovanni , Lorusso Domenica TITLE=Adjuvant Treatment Recommendations in Early-Stage Endometrial Cancer: What Changes With the Introduction of The Integrated Molecular-Based Risk Assessment JOURNAL=Frontiers in Oncology VOLUME=Volume 11 - 2021 YEAR=2021 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.612450 DOI=10.3389/fonc.2021.612450 ISSN=2234-943X ABSTRACT=Adjuvant therapy recommendations for endometrial cancer were historically based on the individual patient's risk of disease recurrence using clinico-pathologic factors such as age, stage, histologic subtype, tumor grade, and lymphovascular space invasion. Despite the excellent prognosis for early stages, considerable under and over treatment remains. Integrated genomic characterization by The Cancer Genome Atlas (TCGA) in 2013 defined four distinct endometrial cancer subgroups (POLE mutated, microsatellite instability, low copy number and high copy number) with possible prognostic value. The validation of surrogate markers (p53, microsatellite instability and POLE) to determine these subgroups and the addition of other molecular prognosticators (CTNNB1, L1CAM) resulted in a practical and clinically useful molecular classification tool. The incorporation of such molecular alterations into established clinic pathologic risk factors results in a refined improved risk assessment. Thus, the ESGO/ESTRO/ESP consensus in 2020 defined for the first time different prognostic risk groups integrating molecular markers. Finally, the feasibility and clinical utility of molecular profiling for tailoring adjuvant therapy in the high-intermediate risk group is currently under investigation (NCT03469674).