Statistical Method for Trending of Excursions in Clean Room Microbiological Monitoring Data

KR Gurijala, A Barnett - PDA Journal of Pharmaceutical Science …, 2021 - journal.pda.org
A statistically robust set of rules is proposed for trending excursions in environmental
monitoring data. These rules were designed to minimize false alarms when the process is in …

Environmental monitoring: data trending using a frequency model

RA Caputo, A Huffman - PDA Journal of Pharmaceutical Science …, 2004 - journal.pda.org
Environmental monitoring programs for the oversight of classified environments have used
traditional statistical control charts to monitor trends in microbial recovery for classified …

Recommendations from USP< 1116> on" contamination recovery rates"

S Sutton - Journal of GXP Compliance, 2012 - search.proquest.com
Abstract United States Pharmacopeia (USP)< 1116>" Microbiological Control and
Monitoring of Aseptic Processing Environments" approaches analysis of environmental …

Setting alert and action limits in the presence of significant amount of censoring in data

SJ Novick, W Zhao, H Yang - PDA Journal of Pharmaceutical …, 2017 - journal.pda.org
In manufacturing settings, control limits are often set using a three-sigma rule (ie, three
estimated standard deviations above and below the estimated mean). More sophisticated …

Calculating Alert Levels and Trending of Microbiological Data

D Roesti - … Quality Assurance and Control: Practical Guide for …, 2019 - Wiley Online Library
Alert levels are always lower than action levels and are established based on historical and
qualification trend data and periodically reviewed. One should also consider environmental …

Multivariate control chart for environmental monitoring

H Yang - Journal of Validation Technology, 2012 - search.proquest.com
Abstract The US Food and Drug Administration 2004 Guidance and the Code of Federal
Regulations (CFR) governing the manufacture of pharmaceutical products (21 CFR 211) …

Computer-Assisted Evaluation of Microbiological Environmental Control Data

MP Russell, RN Purdie, JA Goldsmith… - PDA Journal of …, 1984 - journal.pda.org
Microbiological monitoring of “Clean rooms” generates a large number of results, which are
used, in the first instance, to determine that product or patient have not been exposed to an …

[PDF][PDF] Qualification of an environmental monitoring program

S Sutton - Selection/Justification of Sample Sites. Pharm …, 2008 - microbiologynetwork.com
The qualification, or requalification, of an aseptic manufacturing facility depends in large part
on the demonstration of controlled microbial conditions. The following are several areas …

Statistical analysis of environmental monitoring data: does a worst case time for monitoring clean rooms exist?

AM Cundell, R Bean, L Massimore… - PDA Journal of …, 1998 - journal.pda.org
To determine the relationship between the sampling time of the environmental monitoring,
ie, viable counts, in aseptic filling areas and the microbial count and frequency of alerts for …

Development of a Statistical Approach for Microbial Monitoring in Non-sterile Pharmaceutical Environments

ACM Lirio, VAF Diaz, DK Chellappan, K Dua… - Journal of …, 2023 - Springer
Purpose Little attention has generally been given to non-sterile pharmaceutical
manufacturing, because these products represent less microbial contamination risks …