Blog
Overcoming Matrix Interference in Plate-Based Immunoassays
In bioanalytical testing, few challenges are as persistent as matrix interference — the unwanted influence of sample components on assay performance. For plate-based immunoassays like ELISA and MSD (Meso Scale Discovery) platforms, these interferences can obscure true analyte signals, introduce bias, and compromise reproducibility. Understanding the sources and solutions for matrix effects is essential for…
Advancing Biomarker Strategies in Rare Disease: Insights from Our Lunch & Learn
Last week, Sword Bio was proud to host a Lunch & Learn seminar in Cambridge, MA, where more than 20 professionals gathered to discuss one of the most pressing challenges in drug development: clinical biomarker strategy for rare diseases. We were honored to welcome Binodh DeSilva, Ph.D., Senior Vice President of Bioanalytical and Biomarker Development…
Lessons Learned: Analysis of Complete Response Letters from FDA
Byron Fitzgerald, Founder of ProGen Search analyzes complete response letters from the FDA. This report takes a deep dive into 202 complete response letters and where therapeutic deficiencies fall and what to consider as you plan, whether due to clinical efficacy concerns, manufacturing challenges, safety data gaps, or regulatory misalignment. Click here for the 202…
The Future of NAb Assays: Emerging Technologies and Predictive Capabilities
Neutralizing antibody (NAb) assays are critical tools in the biomedical field. They detect and quantify antibodies that can neutralize the biological activity of therapeutic agents. These assays are essential for evaluating the immunogenicity of biologic drugs, such as monoclonal antibodies and therapeutic proteins, ensuring their safety and efficacy1. By measuring the presence and concentration of…
Evaluating ADA Assay Sensitivity in the Presence of High Drug Levels
Anti-drug antibody (ADA) assays are essential in developing and monitoring biological therapies. These assays help identify immune responses that might neutralize drugs’ therapeutic effects or cause adverse reactions. One of the significant challenges in ADA testing is evaluating assay sensitivity in the presence of high drug levels. This blog will explore the importance of ADA…
How Ligand binding Assays Contribute to immunogenicity testing in Biologics
Introduction Ligand binding assays (LBAs) are essential tools in biologics, playing a crucial role in pharmacokinetic (PK) analysis and immunogenicity testing. These assays facilitate the quantification of drugs, their metabolites, and anti-drug antibodies (ADAs) in biological samples, providing critical data for ensuring the safety and efficacy of therapeutic proteins and other biological agents. Importance of…
Comparing Ligand Binding Assays and Mass Spectrometry for Drug Monitoring
Introduction Drug monitoring is critical to pharmacology, ensuring medications are administered safely and effectively. It involves measuring drug concentrations in biological fluids to optimize therapeutic regimens, avoid toxicity, and ensure patient compliance. Effective drug monitoring can significantly improve patient outcomes, particularly in treatments requiring precise dosing, such as chemotherapy, immunosuppressive therapy, and management of chronic…
Evaluating Sensitivity and Specificity in NAb Assays: What Researchers Need to Know
Introduction Neutralizing antibody (NAb) assays are pivotal in immunology and virology research. These assays measure the ability of antibodies to neutralize pathogens, such as viruses, by preventing their entry into host cells. NAb assays are essential in drug development, vaccine research, and the molecular analysis of immunogenicity. They help determine the efficacy of vaccines and…
NAb Assays for Therapeutic Proteins: Addressing Common Pitfalls and Solutions
Introduction Neutralizing antibody (NAb) assays are critical for developing and testing therapeutic proteins. These assays help determine the presence of antibodies that can neutralize the therapeutic effects of protein-based drugs, ensuring their efficacy and safety. This blog will explore the importance of accurate NAb assays, common challenges faced, and solutions to improve assay accuracy and…
Benefits of a Single CRO for Positive Control Antibody Production and Immunogenicity Assay Development
Introduction When it comes to the intricate world of immunogenicity assays, leveraging a single Contract Research Organization (CRO) for both the creation of positive control antibodies and the subsequent development and execution of these assays can be a game changer. This integrated approach fosters seamless communication, enhances consistency, and drives more reliable results. By streamlining…