Burkholderia cepacia: this decision is overdue

L Torbeck, D Raccasi, DE Guilfoyle… - PDA Journal of …, 2011 - journal.pda.org
This is the third in a series of seven articles discussing the Recall Root Cause Research
project conducted by the Division of Manufacturing and Product Quality, Center for Drug …

Survey of Infant Foods for Clostridium botulinum Spores

DE Guilfoyle, JF Yager - Journal of the Association of Official …, 1983 - academic.oup.com
A total of 236 samples of infant foods, including honey, dry cereal, nonfat dry milk, evaporated
milk, canned formula, and canned baby food, were collected in the New York City area …

An evaluation of preservative adsorption onto nylon membrane filters

DE Guilfoyle, R Roos, SL Carito - PDA Journal of Pharmaceutical …, 1990 - journal.pda.org
Pharmaceutical drug products often contain antimicrobial agents as a preservative in their
formulation. These excipients are required to destroy or impede the growth of microorganisms …

[PDF][PDF] Functional challenges for alternative bacterial endotoxins tests part 2: comparability

J Akers, DE Guilfoyle, D Hussong, K McCullough… - Am. Pharm …, 2020 - acciusa.com
Part one of this three-part series examined the scientific basis for recombinant methods and
the history and extensive studies utilized previously for the acceptance of alternate tests in …

[PDF][PDF] Microbial risk in pharmaceutical manufacturing and ICH Q9

DE Guilfoyle, RL Friedman, PF Hughes… - PDA Journal of …, 2013 - researchgate.net
Pharmaceutical manufacturing generally comprises a complex, multi-step processing system
in which significant risks from microbial contamination are presented by diverse sources …

The Effect of Refrigeration and Mixing on Detection of Endotoxin in Parenteral Drugs Using the Limulus Amebocyte Lysate (LAL) Test

DE Guilfoyle, JF Yager, SL Carito - PDA Journal of Pharmaceutical …, 1989 - journal.pda.org
Prior to testing for the presence of bacterial endotoxin, parenteral products are handled and
stored in a variety of ways. Two incidents, detected by the US Food and Drug Administration, …

Problems encountered with the capillary tube immunodiffusion method for detection of botulinal toxin

DE Guilfoyle, LW Mestrandrea - Applied and Environmental …, 1980 - Am Soc Microbiol
… botulinum toxin, type E. Recently, we have been evaluating the system for its abilityto
detect other types, particularly in foods. Initially, the sensitivity of the capillary diffusion system …

[PDF][PDF] Will a proposed reduction in endotoxins limits for drugs and biologics improve patient safety

JE Akers, J Duguid, DE Guilfoyle, D Hussong… - Am Pharm …, 2022 - acciusa.com
Any parenteral therapy theoretically carries a risk of bacterial endotoxins contamination
which can result in a number of physiological responses in humans, including fever. It is …

Do Plant Isolates Have a Role in Method Suitability and Growth Promotion Testing in the Microbiology Laboratory? Is It a Matter of Science versus Compliance?

DE Guilfoyle, AM Cundell - PDA Journal of Pharmaceutical Science …, 2022 - journal.pda.org
In response to regulatory citations for not including plant isolates in method suitability and
growth promotion testing of microbiological culture media, the authors make the case that the …

Procedures Used for Sterility Testing of Parenteral Drugs by an FDA Field Laboratory

DE Guilfoyle, JF Yager - PDA Journal of Pharmaceutical Science …, 1984 - journal.pda.org
The development and use of effectwe sterility tests should be an essential part of the quality
control program of any industry engaged in production and marketing of parenteral drugs. …