Factors affecting reduction of reference endotoxin standard activity caused by chelating agent/detergent matrices: Kinetic analysis of low endotoxin recovery

M Tsuchiya - PDA Journal of Pharmaceutical Science and …, 2017 - journal.pda.org
Reduction of reference standard endotoxin activity was kinetically analyzed under low
endotoxin recovery conditions and was considered as an apparent first-order reaction …

Sample treatments that solve Low Endotoxin Recovery issues

M Tsuchiya - PDA Journal of Pharmaceutical Science and …, 2019 - journal.pda.org
Dilution of samples with water (water dilution method) was not appropriate for measuring the
endotoxin activity in solutions containing chelating agents and detergents—typical …

[HTML][HTML] Low endotoxin recovery—Masking of naturally occurring endotoxin

J Reich, FA Weyer, H Tamura, I Nagaoka… - International journal of …, 2019 - mdpi.com
Endotoxins are cell wall components of Gram-negative bacteria. A release of endotoxins into
the human blood stream results in an inflammation reaction that can lead to life-threatening …

[HTML][HTML] Investigation of the kinetics and mechanism of low endotoxin recovery in a matrix for biopharmaceutical drug products

J Reich, H Tamura, I Nagaoka, H Motschmann - Biologicals, 2018 - Elsevier
The inability to detect endotoxin added to undiluted drug samples has been called: Low
Endotoxin Recovery (LER). The phenomenon has caused concerns amongst drug …

[PDF][PDF] Endotoxin Standards and Their Role in Recovery Studies: The Path Forward

KZ McCullough, R Tirumalai, D Hussong, J Akers… - BioPharma Asia, 2016 - criver.com
The initial studies of the “LER” phenomenon describe a sudden and irreversible loss of
“endotoxin activity” when Control Standard Endotoxin (CSE), in the form of chemically …

[HTML][HTML] The impact of endotoxin masking on the removal of endotoxin during manufacturing of a biopharmaceutical drug product

M Wespel, M Geiss, M Nägele, S Combé… - … of Chromatography A, 2022 - Elsevier
Endotoxins are a highly pyrogenic and immunogenic contaminant of bacterial origin that
must be avoided during the manufacturing of biopharmaceutical products to ensure safety …

Endotoxin removal from a small-molecule aqueous drug substance using ultrafiltration: a case study

N de Mas, DC Kientzler… - Organic Process Research …, 2015 - ACS Publications
Endotoxin must be controlled in the manufacturing of parenteral drug products to prevent
adverse reactions in patients. Endotoxin contamination may arise in the manufacturing of …

[PDF][PDF] Mechanism of low endotoxin recovery caused by a solution containing a chelating agent and a detergent

M Tsuchiya - Immunome Res, 2019 - criver.com
ABSTRACT Mechanism of Low Endotoxin Recovery (LER) was investigated by observing
the change in particle sizes and activity of endotoxin in LER solutions containing sodium …

Methods of endotoxin removal from biological preparations: a review

POMD Batista, AM Lopes, PG Mazzola, COR Yagui… - 2007 - icts.unb.br
PURPOSE: Endotoxins, also called lipopolysaccharides (LPS), are major contaminants
found in commercially available proteins or biologically active substances, which often …

Evidence against a bacterial endotoxin masking effect in biologic drug products by limulus amebocyte lysate detection

JS Bolden, ME Claerbout, MK Miner… - PDA Journal of …, 2014 - journal.pda.org
The inability to detect endotoxin using compendia methods is a potential safety concern for
patients due to the lack of endotoxin removal capabilities at the fill–finish stage in typical …