Introducing Anti-Ranibizumab Antibodies from Bio-Rad

31 Jul 2018
Han Yin
Administrator / Office Personnel

Product news

Bio-Rad Laboratories, Inc., a global leader of life science research and clinical diagnostic products, has announced the launch of a range of recombinant monoclonal anti-ranibizumab antibodies that are highly specific for the monoclonal antibody drug ranibizumab (Lucentis) or the complex of ranibizumab with its target, vascular endothelial growth factor A (VEGF-A).

Ranibizumab is used for the treatment of wet age-related macular degeneration (AMD), a common form of age-related vision loss, and for macular edema and diabetic retinopathy. The anti-ranibizumab antibodies are inhibitory, non-inhibitory, and drug-target complex specific antibodies and designed for use in pharmacokinetic (PK) and immunogenicity assays for ranibizumab and biosimilars.

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“We are excited to introduce four anti-ranibizumab antibodies that are highly specific for ranibizumab or the ranibizumab-VEGF-A complex,” said Amanda Turner, Bio-Rad product manager, Life Science Group.

“Ranibizumab is a Fab fragment drug and is present at very low levels in patient samples, which presents challenges for PK assay design and sensitivity. The high affinity ranibizumab-VEGF complex specific antibody is unique to Bio-Rad and overcomes those challenges by enabling the development of a PK antigen capture assay to measure free drug.”

Bio-Rad’s anti-idiotypic antibodies are generated using Human Combinatorial Antibody Library (HuCAL®) and CysDisplay®, a proprietary method of phage display with guided selection methods to obtain highly targeted reagents. The recombinant production method also ensures a consistent and secure supply.

The anti-ranibizumab antibodies are approved for in vitro research and for commercial applications of in vitro testing services that support preclinical and clinical drug and biosimilar development and patient monitoring.

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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.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.Assay AssemblyAssay Assembly is technique used in drug discovery to develop assays to test the cytotoxicity, genotoxicity, or other activities of a compound on a cell. Assay assembly requires chip assembly, a delivery system and a detection and analysis method. Beneficial features of assay kits or automated systems include high-throughput, high speed and sensitivity and low signal to noise ratio.Drug DeliveryDrug Delivery refers to dosage form, route of administration, formulations, technologies, and systems for transporting a pharmaceutical compound in the body as needed to safely achieve its desired therapeutic effect. Drug delivery is often approached via the biopharmaceutical or small molecule drug's formulation, but it may also involve medical devices or drug-device combination products. Considerations include instrumentation, software and services. Clinical TrialsClinical Trials, an essential part of drug discovery process, assess the safety and effectiveness of a new medication or device in the pharmaceutical industry. Clinical Trials are a phased process (Phase 0, Phase I, Phase II, Phase III and Phase IV) which begins after initial preclinical testing.InhibitorsAssay 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.Antibodies
Introducing Anti-Ranibizumab Antibodies from Bio-Rad