The official, authorized version of TR 27 is available for purchase directly from the Parenteral Drug Association bookstore. PDA members often receive significant discounts on digital PDF downloads and print copies.
TR 27 outlines how to establish maximum allowable leakage limits based on the product type. For instance, a moisture-sensitive powder requires distinct physical leak rate thresholds compared to a liquid biologic susceptible to microbial ingress. 2. Test Method Selection Criteria
Originally issued in 1998 to supersede Technical Information Bulletin No. 4, this milestone guide shifted the industry from simple sterility testing toward comprehensive barrier quality assessments across a drug product’s entire life cycle. It places heavy focus on sterile and parenteral dosage forms where a compromise in package integrity risks severe microbial contamination or chemical degradation. pda technical report 27 pdf
TR 27 categorizes package integrity testing into distinct modalities, laying the groundwork for the modern distinction between probabilistic and deterministic methods. 1. Microbial Ingress Testing (Probabilistic)
Deterministic methods rely on predictable physical or chemical phenomena. They yield quantitative data, eliminate operator bias, and are highly preferred by regulatory bodies. The official, authorized version of TR 27 is
The PDA's plan is to retire TR 27 and publish a new technical report that focuses on advanced topics related to pharmaceutical package integrity, building on the foundation of USP <1207>. The driving force behind this is the industry's need for guidance on more sophisticated issues that arise from the application of high-sensitivity, deterministic test methods for container closure integrity. While an official publication date for this new report has not been finalized, its development is a key project within the PDA.
, is a foundational guidance document for the pharmaceutical industry, specifically focusing on evaluating the barrier qualities of sterile product packaging. 4, this milestone guide shifted the industry from
While digital copies and summaries might circulate on third-party document-sharing platforms like Scribd, it is highly recommended that regulated companies acquire verified, authorized versions for compliance, auditing, and validation purposes. Final Thoughts