Bio-Rad introduces anti-evolocumab antibodies for use in preclinical and clinical drug development

Bio-Rad’s growing range of anti-idiotypic antibodies offers researchers enhanced flexibility for the development of custom bioanalytical drug assays

30 Aug 2022
Blake Forman
Content Creator

Product news

Bio-Rad Laboratories, Inc. a global leader in life science research and clinical diagnostic products, has introduced a range of type 1 antibodies that inhibit the binding of evolocumab (Repatha®) to its target, human proprotein convertase subtilisin/kexin type 9 (PCSK9), a protein that has been shown to play a key role in the regulation of cholesterol levels. These sequence-defined, recombinant antibodies are suitable for developing highly selective and sensitive pharmacokinetic (PK) and anti-drug antibody (ADA) assays for evolocumab and its biosimilars.

Evolocumab is a monoclonal antibody used for the treatment of hyperlipidemia, or elevated levels of cholesterol and other lipoproteins. It binds to PCSK9, preventing its interaction with low-density lipoprotein (LDL) receptors to reduce circulating cholesterol and other lipoproteins. The new range of five anti-evolocumab antibodies includes fully human IgG1 clones and TrailBlazer Antibodies with a SpyTag incorporated into their heavy chain, enabling site-directed conjugation or fast-switching to a bivalent Fab or a full-length Ig-like format within an hour. The antibodies can be used to develop PK bridging ELISAs to measure free drug or as a surrogate positive control or reference standard in an ADA assay.

“Bio-Rad’s range of ready-made and well-characterized anti-idiotypic antibodies keeps growing, offering researchers enhanced flexibility for the development of custom bioanalytical drug assays against a wide range of marketed biologic drugs,” said Hilary Latham, Bio-Rad Marketing Director, Life Science Group. “Generated under stringent quality control for batch-to-batch consistency, these antibodies can produce translatable and reproducible results, ensuring assay reliability.”

The recombinant antibodies are generated using the Human Combinatorial Antibody Library (HuCAL®) and CysDisplay®, a proprietary method of phage display, along with guided selection methods to obtain highly targeted reagents. The recombinant production method also ensures a consistent and secure supply throughout the assay lifecycle.

The anti-evolocumab antibodies are approved for in vitro research purposes and for commercial in vitro testing services to support preclinical and clinical drug development.

Want the latest science news straight to your inbox? Become a SelectScience member for free today>>

Links

Tags

ELISAEnzyme-linked immunosorbent assays (ELISA), also known as enzyme immunoassays (EIA), are used for the detection and quantification of proteins, peptides and antibodies in a sample. ELISA often comes in kit format, with pre-selected antibody pairs to detect specific proteins or biomarkers of diseases such as diabetes and obesity, or cardiovascular and neurological disorders. Detection is made possible with chemiluminescent, fluorescent or colorimetric substrates and detection instruments such as microplate / ELISA readers. Other kits available include: Enzyme-linked immunospot (ELISPOT) assays for the quantification of protein-producing cells and chemiluminescent immunoassays (CLIA) kits. Find the best ELISA kits and products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Cell-Based AssaysCell-based assays are used to monitor the presence, quantity and activities of a desired cellular analyte including drug molecules or biomarkers. This can reveal information on cell health (apoptosis, cytotoxicity, viability and proliferation assays), cell metabolism, cell migration and cell signaling mechanisms. Find the best cell-based assay products, kits and equipment with our peer reviewed product directory: compare products, check customer reviews and receiving pricing direct from manufacturers.AntibodiesAntibodies are used in techniques such as confocal and fluorescence microscopy, flow cytometry, ELISA, ELISPOT, immunohistochemistry, western blotting and immunopreciptation. Select specific antigen reactivity, high specific affinity, low non-specific binding, monoclonal or polyclonal, primary or secondary antibodies and associated conjugates such as an enzyme or dye for visualization.BiopharmaceuticalsBiopharmaceuticals are proteins and other compounds (such as nucleic acids) produced by living organisms that have uses as therapeutics or for in vivo diagnostics. The most well known example of a biopharmaceutical product, and the first to be approved for therapeutic use, was recombinant human insulin.Assay DevelopmentThe process of proving an assay to be sensitive with respect to the target is known as assay development. The assay should be able to characterize novel compounds and measure the potency of these compounds against a validated biological target.Drug DiscoveryDrug discovery is the process of identifying potential new medications, involving stages such as target identification, compound screening, and preclinical development. It relies on cutting-edge technologies like high-throughput screening, artificial intelligence, and molecular modeling to accelerate the identification of drug candidates. Drug discovery plays a pivotal role in developing new therapies for diseases ranging from cancer to rare genetic disorders. Browse our peer-reviewed product directory to find the latest drug discovery technologies, compare options, check customer feedback, and get pricing directly from manufacturers.