Establishment and Application of Microbiological Supervision for Pharmaceutical Water in Manufacturers of High-risk Drug Based on Blind Sample Assessment
OBJECTIVE To assess the supervision level of microbiological limit tests of pharmaceutical water in pharmaceutical manufacturers of high-risk drug in Zhejiang Province,and to explore a new microbiological supervision model of pharmaceutical water based on blind sample assessment.METHODS Used the methods of inter-laboratory comparison and blind sample assessment to evaluate the labs in Zhejiang province,and Robust Z-score method and blind sample characteristics were used to formulate evaluation principles for data analysis.RESULTS A total of 165 test results were obtained from 55 laboratories,45 labs obtained satisfactory results,10 labs got questionable results,7 deviated labs reported negative results,1 deviated lab reported false positive results,and 2 kinds of deviations existed simultaneously in 2 labs.CONCLUSION 90%of labs have the risk of false-negative or low value risk.The daily microbiological monitoring data of the water system may be relatively low,and the quality risk of pharmaceutical water cannot be effectively found.30%deviated labs have microbial pollution risk.There may be problems such as sample pollution risk,environmental pollution risk and non-standard aseptic operation.The new microbiological supervision model based on blind sample assessment can help enterprises improve their microbial control capabilities and ensure drug quality and safety.