The following fields were updated due to additional information: d.9.Device available for eval?: yes.D.9.Returned to manufacturer on: 1/11/2021.H.6.Investigation: this memo is to summarize findings on the recent complaint (b)(4) for bbl¿ trypticase¿ soy broth, batch number 0259640 and catalog number 299107.Event description: it was reported that aspergillus brasiliensis atcc 16404 and candida albicans atcc 10231 would not grow.Complaint history review: the complaints trends were reviewed.There were no similar complaints received during that period on this product lot.Therefore, a trend could not be identified.Batch history record (bhr) review: the batch history review did not indicate any discrepancies.All release testing was satisfactory, and no deviations were observed.Sample analysis: pictures were provided showing bottles and a description of the strains used in them.Also, physical sample was provided for further evaluation.A contamination test was performed with the returned samples and no contamination could be detected.An analysis of growth promotion for the media was performed on retention samples.The performance tests on retention samples of the above mentioned batch resulted in excellent growth of the following strains: candida albicans atcc 10231.Aspergillus brasiliensis atcc 16404.After an incubation time of 5 days at 22,5°c ± 2,5°c in aerob atmosphere.Evaluation results: at this stage of our investigation, we have excluded any systemic failure in our production process.No deviation could be found during the qc performance test.The strain did grow as expected.Investigation conclusion: based on the evaluation of the report and based on the qc test results, the complaint was not confirmed.A corrective and preventive action will not be implemented as a trend could not be identified.We would suggest that any prepared plated media be set aside and not use, that does not meet the appearance specification as it is described on the bd certificate of analysis.This is consistent with industry recommendations for inspection of culture media prior to use (e.G.¿good practices for pharmaceutical microbiology laboratories¿, who technical report series, no.961, 2011, annex 2; chapter 1117 ¿microbiology best laboratory practices¿ the united states pharmacopeia; and the difco & bbl manual).
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