The document presents a detailed overview of the novel ADCC reporter bioassays developed by Promega Corporation, which improve upon traditional assays by enabling better quantification of antibody effector functions. These assays utilize engineered cell lines and a frozen, thaw-and-use format to reduce variability and enhance reproducibility in testing. The document outlines the advantages of these bioassays, including their stability, precision, and ability to assess the impact of Fc receptor polymorphisms on therapeutic outcomes.