A biopharmaceutical industry perspective on the control of visible particles in biotechnology-derived injectable drug products

…, ST Esswein, M Mazaheri, PW Cash… - PDA Journal of …, 2016 - journal.pda.org
Regulatory monographs in Europe and the United States require drug products for parenteral
administration to be “practically free” or “essentially free” of visible particles, respectively. …

Subvisible (2–100 μm) particle analysis during biotherapeutic drug product development: Part 2, experience with the application of subvisible particle analysis

…, LO Narhi, TM Spitznagel, N Afonina, S Cao, P Cash… - Biologicals, 2015 - Elsevier
Measurement and characterization of subvisible particles (including proteinaceous and non-proteinaceous
particulate matter) is an important aspect of the pharmaceutical development …

Monitoring of Visible Particles in Parenteral Products by Manual Visual Inspection—Reassessing Size Threshold and Other Particle Characteristics that Define Particle …

…, F Nikels, P Chalus, TK Das, PW Cash… - Journal of …, 2024 - Elsevier
Visible particles are a critical quality attribute for parenteral products and must be monitored.
A carefully designed, executed, and controlled drug product manufacturing process …

Determination of meningococcal polysaccharides by capillary zone electrophoresis

DH Lamb, QP Lei, N Hakim, S Rizzo, P Cash - Analytical biochemistry, 2005 - Elsevier
Meningococcal polysaccharides are medically important molecules and are the active
components of vaccines against Neisseria meningiditis serogroups A, C, W135, and Y. This study …

Quantification of residual EDU (N-ethyl-N′-(dimethylaminopropyl) carbodiimide (EDC) hydrolyzed urea derivative) and other residual by LC–MS/MS

…, M Huang, E Zablackis, R Ryall, P Cash - … of Chromatography B, 2004 - Elsevier
An LC–MS/MS method for determination of the break down product of N-ethyl-N′-(3-dimethylaminopropyl)
carbodiimide (EDC) urea derivative, EDU, has been developed and …

Universal method for the determination of nonionic surfactant content in the presence of protein

…, E O'Connor, J Casas‐Finet, PW Cash - Journal of …, 2015 - Wiley Online Library
A new analytical method has been developed for the quantitative determination of ethylene
glycol‐containing nonionic surfactants, such as polyethylene glycol 8000, polysorbate 80, …

Characterization of the initial level and migration of silicone oil lubricant in empty prefilled syringes for biologics using infrared spectroscopy

…, PS Roussel, SO Krause, PW Cash… - PDA Journal of …, 2014 - journal.pda.org
Glass prefillable syringes are lubricated with silicone oil to ensure functionality and a consistent
injection for the end user. If excessive silicone is applied, droplets could potentially result …

Semi-quantitative analysis of inherent visible particles for biopharmaceutical products

PW Cash, R Narwal, SV Levitskaya… - PDA Journal of …, 2016 - journal.pda.org
Visible particles must be monitored as part of the control strategy for pharmaceutical
products. Extraneous (foreign) particles are not acceptable in parenteral drug products. In …

ICH Q5C stability testing of biotechnological/biological products

…, D Gao, YJ Kim, R Harris, PW Cash… - ICH Quality …, 2017 - Wiley Online Library
ICH Q5C is relatively clear in terms of the logistics for a typical stability study. This chapter
focuses on the typical questions/ambiguities encountered during the design and conduct of …

LC/MS characterization of meningococcal depolymerized polysaccharide group C reducing endgroup and internal repeating unit

…, RD Kensinger, R Ryall, E Zablackis, P Cash - Analytical …, 2004 - ACS Publications
Hydrogen peroxide has been used to cleave the native Neisseria meningiditis polysaccharide
(PS) from mega-Dalton molecular weight to a smaller size (∼20 kDa) depolymerized …