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 78 of 92 For the most current and official copy, check QMiS. b. Have they performed a filter integrity test on the membrane used for the product sterilization? Review the products pre-filtration bioburden levels to assure that the concentration of bacteria in the bulk has not exceeded the membrane filtration capacity that was determined in their validation studies. Have they changed the source or model for the membrane filter cartridge used in the process? c. Has the firm manipulated or excluded some of the data used in the final QC report? Perhaps raw data was averaged to bring the bioburden count below the alert or action levels. It can be helpful to request electronic Excel sheet version of data, to allow sorting (by frequency of organism, location, etc.) and trend analysis; hard copies can be requested later, if necessary. d. Review the media simulation studies. Did the microbial species recovered in past simulation studies match the microbe(s) recovered from the current product test failure? e. Has there been a change or breach in the personnel barrier system to protect the product? Were there any interventions by maintenance or other staff personal during the manufacturing of the contaminated lots? Review glove/uniform monitoring results. f. Review the antimicrobial effectiveness challenge studies for the product if it multiple dose. Where there any changes to the container/closure component source or requirements? g. Were there any changes to the disinfection procedure, reagents use, new personnel, application, equipment (mops, aerosols, etc.) etc.? 2. Terminally sterilized drug product a. Check autoclave validation studies for sterilization process- cold spot, heat penetration (challenged inside dry tubing, connectors/caps/stoppers, largest liquid volume, etc.), changes in chamber load configuration, etc. b. Check maintenance records for house steam, records for autoclave repair, new plumbing c. Check Biological Indicator (BI) information- improper storage of BIs; changes in the culture (inoculum level and/or BI organism species) and incubation parameters d. Evaluate the heat resistance characteristics of the microbial isolate found in the product during sterility testing and determine |
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