Her boss called it overkill. She called it the difference between a sterile drug and a lawsuit.
Elena wrote a deviation request, citing TR 27’s own caution. And then she began drafting a new method: real-time pressure cycling during leak testing. pda technical report 27 pdf
The next revision of TR 27 would cite her work. Would you like the real summary of PDA TR 27 instead? Just say the word. Her boss called it overkill
Her team had followed to the letter. Section 6.2: container-closure integrity testing. Section 7.3: method selection based on product risk. They had chosen helium leak detection, the gold standard. pda technical report 27 pdf
That was it. The vial stoppers were micro-deflecting during air freight, opening transient channels—channels that closed before any lab test could catch them.
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