What Is CAPA in Pharmaceutical Manufacturing?

CAPA stands for Corrective and Preventive Action — the structured process a manufacturer runs after a quality problem (a deviation, an out-of-specification result, a complaint) to determine what actually caused it, fix it, and put a control in place so it doesn't happen again. It's one of the most heavily scrutinized systems in an FDA inspection, precisely because a weak CAPA process tends to mean the same failure keeps recurring under a different name.

A CAPA usually starts from a triggering event (most often a deviation), moves through root-cause investigation, defines corrective actions (fixing this instance) and preventive actions (stopping recurrence), assigns owners and due dates, and closes with a review step confirming the actions were actually completed and effective.

The closure step is where accountability tends to break down in practice — a CAPA gets marked "closed" without a real review, or without evidence the corrective action was actually implemented. A closure step with a genuine electronic signature (not just a status flip) is one concrete way to keep that accountable.