USA – Q5E Comparability of Biotechnological/Biological Products Subject to Changes in Their Manufacturing Process

The objective of this document is to provide principles for assessing the comparability of biotechnological/biological products before and after changes are made in the manufacturing process for the drug substance or drug product. Therefore, this guidance is intended to assist manufacturers of biotechnological/biological products in the collection of relevant technical information that serves as evidence that the manufacturing process changes will not have an adverse impact on the quality, safety, and efficacy of the drug product. The document does not prescribe any particular analytical, nonclinical, or clinical strategy. The main emphasis of the document is on quality aspects…