CQA (Critical Quality Attribute)

A Critical Quality Attribute (CQA) is a specific characteristic of a product, especially in pharmaceuticals, that must be within certain limits to ensure its safety, effectiveness, and quality. For example, in medicine, the right dosage, purity, or stability are considered CQAs. Monitoring and controlling these attributes during manufacturing helps ensure that the final product consistently meets quality standards and performs as intended, protecting patient health. Essentially, CQAs are key features that are critical to the product's success and compliance with regulatory requirements.