Microbiology FDA 483 : Procedures applicable to the quality unit are not in writing and fully followed

Observation

The responsibilities and procedures applicable to the quality unit are not in writing and fully followed for your formulation manufacturing operations.

Facility Type

Non-Sterile Manufacturing

Firm / Company

Torrent Pharmaceuticals Limited

System

Quality System

Details

When counting microbial plates for colonies (CFU/mL) in your Microbiological Lab, a calculation is performed to determine the CFU/ml results where you take the**and **of sample taken. You state in the Test Data Sheet under “Note” (in Logbook #B***) “If the result is fraction, round the nearest whole number for reporting final result.” However, you have not established a procedure in the microbiology lab for “calculating of result: CFU/mL” and rounding numbers and/or significant figures. Your SME (Assistant Manager of QC-Microbiology) stated the calculation formula for “CFU/mL” was taken from USP General Chapter <61> (Microbiological Examination of Nonsterile Products: Microbial Enumeration Tests) prior to 2013 version. However, the calculation formula is not referenced in the provided USP General Chapter.

 

In addition, observed in the “General Test Data Sheet for Microbial Enumeration Test and Test for Specified Microorganisms (Microbial Limit Test)” for ***Capsules *** mg % s Alu Alu Blister Pack for Batch #***that a calculation formula is given to calculate Total Microbial Count for Total Aerobic Microbial Count (TAMC) and TYMC (Total Yeast & Mold Count) as (Volume of Test Sample, unit of measure is not provided). The reference calculation is not referenced in the SOP and in the USP General Chapter <61> (Microbiological Examination of Nonsterile Products: Microbial Enumeration Tests, prior to 2013 version).

 

For example, you observed 21 counts on December 4, 2023 for sample ID sample) and you reported (4) ” under “Observe count CFU/mL” after performing the calculation. When asked your Assistant Manager QC-Micro to perform the calculation,  observed the result was ‘ ) ” but your analyst rounded the reported result to ” without any justification.

 

In addition, you do not maintain a usage and/or maintenance logbook for the colony counters (ID #T*** and T***). *** Capsules **** require microbial testing. For total aerobic microbial count (TAMC , microbiological quality (to combined yeasts/ molds count, and Escherichia Coli).

 

Record Date

12/2023

FEI Number

3012740315

Country

India

Citation Type

483

Audit Duration (Days)

5

Investigators

Yvins Dezan
FDA 483 relevant to Microbiology

Disclaimer: The purpose of this article is to provide helpful information on FDA 483s related to microbiological issues. This article represents 483 information in Tabular form for quick access and easy navigation. Information for this article is derived from “Form FDA 483” (Inspectional Observation). This article is not intended to replace the information provided by the FDA, nor is it guaranteed to be complete, always refer official FDA site for details.

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