KCAS-blog-thumb_2022_Tissues-Lrg-Mol Blogs
Read article Assessing PD and PK in Non-Liquid Matrices

Tissue and Non-Liquid Matrices (such as cell lines, red blood cells, PBMCs, bone marrow aspirates, and suspension cells) are valuable matrices[] to test for biomarkers (PD) and drug levels (PK). Testing of tissues and…

KCAS-blog-thumb_2022_LBA-and-LCMSMS Blogs
Read article The Benefits of Combining LBA and LC-MS/MS for Pharmacodynamics

Pharmacodynamics (PD) is defined as the study of the biochemical and physiological effects of drugs and the mechanisms of their actions. Where pharmacokinetics looks at how the organism processes the drug, pharmacodynamics studies how…

PATTERN_AMBER_1320x780 Webinars
View webinar KCAS Webinar: Addressing the Challenges of Complex Analytes and Matrices in Preparation for Routine Sample Analysis

Join us Tuesday November 10, 2020 at 11am EST| 8am PST| 4pm CET| 5pm CET Bioanalytical liquid chromatography­–mass spectrometry (LC–MS) for small molecules is often referred to as a routine technology. That perception may be true for many drugs, but as pharmaceutical companies move into new areas, more  projects may…

KCAS-blog-thumb_dose-form-analysis Blogs
Read article Successful Dose Formulation Analysis from KCAS

Dose Formulation Analysis is an essential step in regulated nonclinical studies to ensure correct doses are administered to underpin toxicokinetic assessments. Based on years of experience, KCAS has built a stand-alone team dedicated to…

PATTERN_ORANGE_1320x780_2 Blogs
Read article Unstable Small Molecule Therapeutic Analysis

Pharmacokinetic modeling during the drug development process is essential for determining whether an administered drug substance has the necessary characteristics to meet its intended medical use. Typically for small molecules, this is based on…

PATTERN_ORANGE_1320x780_2 Blogs
Read article Validating Drug Assays in Tissues

Designing a tissue assay in accordance to the FDA bioanalytical method validation (BMV) guidance involves three key questions. First, can control tissue be easily obtained in bulk quantities or should a surrogate tissue approach be considered? Second, what sample processing procedures should be considered relative to the known stability of…

PATTERN_BLUE_1320x780 Blogs
Read article The Value of Deuterated Internal Standards

Surprisingly, there are a number of drug development companies that do not obtain stable isotope-labeled internal standards (SIL-IS) for their bioanalytical methods. Instead they settle for using a surrogate internal standard (a compound that closely resembles the measured analyte) which can lead to unreliable data and be detrimental to a…