
Ligand binding assays (LBAs) have been our core activity for decades. LBAs are commonly used to measure interactions between two proteins, a ligand and its receptor, a monoclonal antibody (mAb) and its target, or biologics and Anti-Drug Antibodies (ADA). Throughout the development of New…

In an exciting development, KCAS, through its subsidiary FlowMetric, is expanding its flow services in Europe. With a history of providing cutting-edge flow services in the EU, KCAS is taking a significant step forward by transitioning services from its Milan, Italy site to…

With recent guidance released from the FDA, there are changes for PKs (Pharmacokinetics) and ADCs (Antibody Drug Conjugates) that must be clearly understood before making decisions for your drug product testing. ADCs combine the target specificity of monoclonal antibodies with the…

Spectral flow has come a long way in recent years, transforming from a mere whisper of possibility to an essential tool in bioanalysis. Initially gaining traction in academic institutions, it quickly caught the attention…

In the ever-evolving landscape of pharmaceutical research…

Biologics are drugs derived from complex molecules like antibodies. Over the last two decades they have re-emerged as…

Business Wire – May 24, 2023 11:00 AM EST – In an effort to continue…

After an open call that went out earlier this year, Shane De Büchel, Sr Manager of Quality Assurance (Compliance & Systems) at KCAS, has been selected as one of roughly 50 members of the Society of Quality Assurance to collaborate in authoring an upcoming data integrity book (the…

With the extensive advances in technologies like CRISPR and CAR-T, cell and gene therapy has grown to become a viable way for treating Cancer as well as other diseases. Our team has over 100+ years of collective expertise in molecular services using qPCR and ddPCR for support of…

Dr. Sohrab Habibi Goudarzi – Senior Director of Pharma Discovery and R&D Services, Bryan Parmentier – Senior Principal Scientist of Pharma Method Development, and Yu-Hui (Ann) Fu -Principal Scientist of Pharma Regulatory, along with other scientists at KCAS Bioanalytical & Biomarker Services, coauthored with scientists at Gilead Sciences, Inc. in…

For most applications flow cytometry is used to identify cell populations and define bivariant terms of positive and negative sub-populations according to specific biomarkers, through the binding of fluorescently tagged monoclonal antibodies (mAbs). Typically, the cutoff between these populations is set relative to a control unstained population. Since the fluorescent intensity of a signal is proportional to the amount of monoclonal antibody bound to that cell target, this signal is directly related to the expression level of that target. However, for flow cytometry endpoints to be considered truly quantitative and fulfill the rigor of clinical utility, several obstacles needed to be overcome. In this blog, we explore the rationale behind quantitative flow cytometry, and the tools that are now being implemented to help achieve standardization.

As a Senior Director for Discovery in the pharma division at KCAS, I would like people to think of “Bioanalytical Discovery” as a stage in drug development; one where you are doing your final…