This article highlights the critical role of in-process testing in cGMP-regulated biotech manufacturing. Discover how real-time monitoring enhances Quality by Design (QbD), minimizes variability, and safeguards product integrity—enabling consistent, high-quality production of cell and gene therapies in today’s tightly regulated therapeutic landscape. https://hackmd.io/@GKXQOi4CSbaLiqqEf1w96w/SJrBsjLXeg