CAPA Effectiveness Check
What a definition is not
A definition is SPEQ’s plain-language decode of how a term is used in practice, cited to the documents that define it. It is a practitioner reference, not legal or regulatory advice, it does not replace the definition in the source, and where a regulator’s wording differs the regulator’s wording governs.
A CAPA effectiveness check is the planned, objective verification — performed after a corrective or preventive action has been implemented and given time to take hold — that the action actually eliminated the root cause and that the problem has not recurred. It requires pre-defined success criteria and a defined evaluation window, judged against evidence (data, trends, recurrence) rather than the fact that the action was completed. Closing a CAPA on "action done" without an effectiveness check is one of the most common quality-system weaknesses.
The distinction that matters: implementation confirms the action was taken; effectiveness confirms it worked. A CAPA can be fully implemented and still ineffective if it addressed a symptom rather than the true root cause — which is exactly what the effectiveness check is designed to catch.
Robust programs set the effectiveness criteria and measurement method at the time the CAPA is planned, not retrospectively, so the check cannot be quietly redefined to pass.
- —Verifies the root cause was eliminated and the problem did not recur
- —Requires pre-defined criteria and a defined evaluation window
- —Implementation is not effectiveness — the check tests the latter
- —Missing effectiveness checks are a frequent inspection finding
ICH Q10 CAPA provisions; device CAPA requirements under 21 CFR 820.100.
Frequently asked questions
What is CAPA Effectiveness Check?
A CAPA effectiveness check is the planned, objective verification — performed after a corrective or preventive action has been implemented and given time to take hold — that the action actually eliminated the root cause and that the problem has not recurred. It requires pre-defined success criteria and a defined evaluation window, judged against evidence (data, trends, recurrence) rather than the fact that the action was completed. Closing a CAPA on "action done" without an effectiveness check is one of the most common quality-system weaknesses.
Which regulations cover CAPA Effectiveness Check?
ICH Q10 CAPA provisions; device CAPA requirements under 21 CFR 820.100.