Hybrid LC-MS/MS is a technique that combines an affinity capture step with LC-MS/MS detection. It typically requires only one antibody, in contrast to conventional ligand-binding assays (LBAs), which usually need two. This approach leverages the combined selectivity of affinity extraction and the analytical power of tandem mass…

ADCs represent a promising class of targeted therapies, and understanding the intricacies of their analysis is crucial for their successful development. In this blog, we address common questions to guide you through the various considerations involved in ADC research and testing. We will cover key topics related to the…

Anyone who has been following KCAS for any amount of time has likely heard us discuss the advantages of Hybrid LC-MS/MS for the bioanalysis of large molecules. As pioneers in the technology for many years, KCAS has become a strong proponent of working with our customers to demonstrate the quality…

Due to the relative maturity of the technology, most people’s instinct when thinking about bioanalysis of large molecules is towards ligand binding assays. However, we urge people to be open to a more flexible approach. Using hybrid LC-MS/MS can be an equally useful tool for quantitation of biological therapeutics and…

For years, Dawn Dufield, PhD and I have been doing our best to get the word out (via as many venues as possible) about KCAS’s unique expertise with hybrid LC-MS/MS. This year’s upcoming EBF meeting in Barcelona is just such an opportunity, and one we are very much looking…

There has been an increasing focus on large molecule therapeutics and pharmaceutical companies have increasingly aligned their development pipelines in that direction. This has resulted in more biological therapeutics coming to market.  Last year,…

Antibody-drug conjugates (ADCs) have been conventionally developed for a wide range of oncological applications since the first ADC approval in 2000 by the FDA. Typically, an ADC consists of three main components: antibody, linker conjugate, and therapeutic drug (payload). The mechanism of an ADC involves the antibody binding to a specific…

The age of therapeutic conjugation is upon us! Bioanalysis for support of next-generation Antibody Drug Conjugates (ADCs) and Antibody siRNA Conjugates (ARCs) have exploded recently due to the efficacy and safety that these therapies offer for immuno-oncology, rare diseases, vaccines, and potentially many other diseases. Recently, we have seen the…

In the complex and dynamic bioanalytical landscape of antibody-drug conjugate (ADC) services, where often time is critical and every research dollar counts, hybrid technology is quickly emerging as a game-changer. Hybrid offers a spectrum of advantages that redefine traditional approaches to bioanalytical ADC drug development. At the forefront of these…

If you are part of the Biotech/Pharma community, you may be familiar with the (J.P. Morgan) JPM Healthcare Conference that takes place annually in January and typically in San Francisco. This was the 42nd Annual JPM Healthcare Conference and it is the world’s largest healthcare symposium. This year the mood…

In biomarker-driven drug development, selecting the right assay format is critical for generating reliable data that informs scientific and clinical decisions. Whether quantifying proteins, immune cell subsets, or complex molecular signatures, the choice between off-the-shelf and customized assays has direct implications for timelines, costs, and how well the assay performance…

Drawing on the insights of our leadership team, we’ve compiled a global perspective on the state of the bioanalytical industry in 2024. Through thoughtful discussions with our CEO, John Bucksath, and key team members Amy Mize, Mouhssin Oufir, and Brian Wile, KCAS Bio delivers a roadmap…

When it comes to developing new therapies for inflammatory bowel diseases (IBD), having robust and reliable bioanalytical support is crucial. From the early stages of drug discovery to Phase III clinical trials, our comprehensive bioanalytical solutions are designed to enhance and accelerate your drug development journey in a GCP…

Drawing on the insights of our leadership team, we’ve compiled a global perspective on the state of the bioanalytical industry in 2024. Through thoughtful discussions with our CEO, John Bucksath, and key team members Amy Mize, Mouhssin Oufir, and Brian Wile, KCAS Bio delivers a roadmap…

Oligonucleotide therapeutics have recently gained popularity as noted by recent increases in regulatory approvals of oligonucleotides as drugs, novel liquid nanoparticle delivery approaches, and on-target specificity. In the development of bioanalytical assays, there are many challenging aspects to consider when quantitating oligonucleotides, such as non-specific binding, stability, efficient ionization, sequence…

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…

To read part one of this 2-part series, click here. With increasing focus on large molecule therapeutics and interest in large molecule biomarkers it’s essential to have LC/MS available as a complimentary technology to ligand…

Biomarker is a broad term and can mean so many different things depending upon the scientific discipline. For Bioanalytical biomarker analysis – and specifically for CROs equipped with 9 different platforms to measure biomarkers and a cell culture suite with up to 19 color flow cytometry all under one roof…

Biomarker are key drivers in the drug development process.  Frequently, developing a panel of biomarkers to test a particular mechanism or hypothesis is critical to the success of a drug.  At KCAS, we develop assays for custom panels or individual biomarkers based on client needs and can also assist with…

KCAS Bio participated in the AAPS National Biotechnology Conference (NBC), held from May 4 to May 7, 2025, in Boston. It was a productive event that allowed us to connect with sponsors, exchange ideas with peers, and present our latest work in bioanalytical science. Our experts…

The bioanalysis world has exploded with the need for molecular assays (qPCR, dPCR, NGS, Hybridization technologies) due to the demand for both biodistribution/PK and PD/BM analysis of various drug modalities. Many of these molecular assays have been around for decades and are now routine methods. CLIA and reference labs have…

KCAS Bio is excited to expand our global reach by attending key conferences across Europe in 2025. These events bring together top experts in biotechnology, pharmaceuticals, and clinical research, providing a unique opportunity to discuss cutting-edge advancements, regulatory insights, and innovative solutions in bioanalytical and biomarker services. As we continue…

KCAS Bio is thrilled to announce our participation in several key scientific and bioanalytical events across the United States in the coming months. These conferences provide a unique platform to showcase our cutting-edge capabilities, engage with industry leaders, and explore innovative approaches to bioanalysis. From gene therapy to toxicology and…

Dawn Dufield, PhD is the Scientific Officer for Mass Spectrometry and has been with KCAS Bio since 2018. Before joining KCAS Bio, she worked in the quantitative large and small molecule LC-MS/MS field for Pfizer for over 20 years. Dawn has been a pioneer in the Hybrid LCMS field and…

Along with a series of studies we plan to present related to our experiences with hybrid LC-MS/MS technology, KCAS will also be presenting on a study where we analyzed a compound that involved looking at urea in plasma and lung fluid (urea, of course, being a biomarker). Urea is endogenous…

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…

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…

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…

KCAS is a solution-based company. We are focused on the delivery of high quality scientific and defendable data, able to meet or exceed client’s timelines and expectations. One of the main reasons we are able to deliver on even the most challenging projects and programs, is the technical breadth and…

The 505(b)(2) drug development path, in contrast to traditional development of a new, never been approved drug (described under 505(b)(1) of the Federal Food, Drug, and Cosmetic Act) or ANDA (described under Section 505(j) of the Act) for a generic drug that is no longer under patent…