Metrics to demonstrate value of PAT and RTRT in yield and quality improvement Metrics to Demonstrate Value of PAT and RTRT in Yield and Quality Improvement Process Analytical Technology (PAT) and Real-Time Release Testing (RTRT) represent fundamental aspects of modern pharmaceutical manufacturing, contributing significantly to the efficiency and efficacy of process validation. The evolution of regulatory expectations alongside advancements in technology necessitates a comprehensive understanding of the metrics that substantiate the value of these methodologies. This article aims to elucidate the intricate relationship between PAT, RTRT, and overall process validation, as well as provide insights into the regulatory perspectives of…