USP <1206> - Package Integrity Evaluation - Sterile Products

What it says

Package integrity for sterile products should be evaluated using a defined lifecycle approach, selecting deterministic test methods appropriate to the container-closure system, validating those methods, and applying them at appropriate points across development, manufacturing and the product's shelf life to provide ongoing assurance of sterility maintenance.

Paraphrased for plain-language clarity. Always verify against the current published regulation text.

What it means in practice

• This chapter pushes package integrity testing toward deterministic, physically based test methods rather than relying on probabilistic microbial ingress testing alone, reflecting a broader shift in how container-closure integrity assurance is approached across the industry.
• A lifecycle approach means package integrity is not a single test performed once, method selection, validation and ongoing verification are all expected to be connected and revisited as the product or packaging evolves.
• This chapter works closely with the general sterility assurance principles in USP <1211>, since a validated package integrity test is one of the key pieces of evidence supporting confidence in sterility maintenance over shelf life without relying solely on end-product sterility testing.

What inspectors look for

• Whether the package integrity test method selected is appropriate for the specific container-closure system and has been properly validated.
• Whether package integrity testing is performed at appropriate points across the product lifecycle, including as part of ongoing stability and shelf-life support.
• Whether a packaging or container-closure change triggered a reassessment of whether the existing validated integrity test method still applies.

Related regulations