Pharmaceutical Microbiology Manual
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ORA.007 Pharmaceutical Microbiology Manual
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- Revised: 25 Aug 2020 Title: Pharmaceutical Microbiology Manual
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OOD AND D RUG A DMINISTRATION O FFICE OF R EGULATORY A FFAIRS Office of Regulatory Science Document Number: ORA.007 Revision #: 02 Revised: 25 Aug 2020 Title: Pharmaceutical Microbiology Manual Page 73 of 92 For the most current and official copy, check QMiS. (nanobacteria) and endotoxin production; cold system problems, disinfection problems 8. Personnel- training procedures for aseptic technique, gowning procedures, cleaning and maintenance personnel training for ISO 5 room entry; glove and garment monitoring procedures 9. Product sampling: a representative sample is selected based on lot size as per USP <71> guidelines; quantity per container & units per batch, sample storage (time and temperature), sampling port sanitization or sterilization problems; be aware of skip lot testing on raw material. 10. Maintenance records- determine dates, and location of equipment failures or out-of- service equipment that may have an impact on microbial contamination of product; looks for signs of roof leaks and water stains on ceiling panels, the degree of dirt and dust accumulation on supply and exhaust vents. Ask about new construction, plumbing or air handling system and the reason for change. 11. Compressed air systems—sterile process air, microbial particulate filtration (0.2 µm, hydrophobic), condensate causing blockage and microbial growth, routine point-of-use sampling, maintenance, filter integrity test C. Sample Data Review – When all results are negative The following should be reviewed when all the firm’s sterility, nonsterile product and/or environmental monitoring test results indicate no microbial growth for validity and/or accuracy: 1. Media- growth promotion; adequacy of the documented pH; low agar or broth volume in container, incubator temperature not set correctly; improper medium storage after QC (crystals from freezing, inadequate mixing prior to dispensing, agar plates dried out during incubation, etc.) 2. Method suitability testing- validation for sterility; preparatory testing (BET). Appropriateness of neutralizers, product dilution, filtration; presence of toxic chemical contaminants in the water used to prepare the buffers, Not following method (excess of product added to broth during test but not during suitability testing, etc.) 3. Improper tube or agar plate examination- check filter surface on submerged filter membrane (mold budding); surface film, light hazy growth in Thio broth, microbes settle to bottom of tube, pinpoint |
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