H6.Investigation summary: complaint history review: complaint history was reviewed, and similar complaints were identified for this product; however, a trend could not be identified.Batch history record (bhr) review: the bhr was reviewed.No deviations from the validated manufacturing processes were identified.Sample analysis: the retain samples were reviewed and no deviation was detected.Return samples were not provided; however, picture sample was shared showing contaminated plate.Evaluation results: this product is filled under aseptic conditions.Therefore, sterility of the finished product cannot be guaranteed.Unfortunately, a 100 % inspection level for sterility is not possible and sterility testing is carried out based on a representative sample.In consequence, occasional contamination cannot be prevented by 100%; although the contamination rate remains below the acceptance level.A definite root cause was not identified.Investigation conclusion: based on the internal investigation, this complaint can be confirmed for contamination.H3 other text : see h.10.
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