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Cetuximab antibody | AbD19376_hIgG1

Human anti Cetuximab

Product Type
Monoclonal Antibody
Clone
AbD19376_hIgG1
Isotype
IgG1
Specificity
Cetuximab

Product Code Applications Pack Size List Price Your Price Qty
HCA228
Datasheet Datasheet Datasheet
SDS Safety Datasheet SDS
E 0.1 mg loader
List Price Your Price
loader

Human Anti-Cetuximab Antibody, clone AbD19376_hIgG1, is a non-inhibitory anti-idiotypic antibody that binds to cetuximab. This antibody recognizes an epitope outside the cetuximab binding site and so does not inhibit the binding of the drug to its target, epidermal growth factor receptor (EGFR). This epitope is shared with other chimeric antibodies that are highly homologous to cetuximab including infliximab but excluding rituximab. The antibody is suitable for the development of bioanalytical assays for cetuximab and biosimilars.

Clone AbD19376_hIgG1 is a fully human recombinant monoclonal with IgG1 isotype and is suitable as a surrogate positive control or calibrator in an anti-drug antibody (ADA) assay. In addition, it is suitable as a detection antibody in pharmacokinetic (PK) bridging ELISA, with Anti-Cetuximab Antibody HCA220 as the capture antibody. This combination enables measurement of free and partially bound cetuximab, which is equivalent to total drug when trough serum levels are above 4 μg/ml.

Cetuximab (brand name Erbitux) is a chimeric monoclonal antibody drug (IgG1/kappa) approved for treatment of KRAS wild-type metastatic colorectal cancers and squamous cell carcinoma of the head and neck. This therapeutic antibody is directed against EGFR and inhibits tumor cell proliferation by blocking the interaction of epidermal growth factor (EGF) with its receptor.

View a summary of all anti cetuximab antibodies.
20th Anniversary

Product Form
Human IgG1 antibody selected from the HuCAL phage display library and expressed in a human cell line. This antibody is supplied as a liquid.
Preparation
Purified IgG prepared by affinity chromatography on Protein A
Source
HKB-11
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
Immunogen
Chimeric monoclonal antibody
Affinity
The monovalent intrinsic affinity of this antibody is KD=39 nM as measured by real time, label-free molecular interaction analysis on immobilized cetuximab.
Approx. Protein Concentrations
Antibody concentration 0.5 mg/ml
Regulatory
For research purposes only
Guarantee
12 months from date of despatch
Acknowledgements
This product and/or its use is covered by claims of U.S. patents, and/or pending U.S. and non-U.S. patent applications owned by or under license to Bio-Rad Laboratories, Inc. See bio-rad.com/en-us/trademarks for details.
Licensed Use
For in vitro research purposes and for commercial applications for the provision of in vitro testing services to support preclinical and clinical drug development. Any re-sale in any form or any other commercial application needs a written agreement with Bio-Rad.

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
ELISA
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Technical Advice
Recommended protocols and further information about HuCAL recombinant antibody technology can be found in the HuCAL Antibodies Technical Manual.
ELISA
This product may be used in a direct ELISA or when conjugated to HRP, as a detection antibody in a cetuximab bridging ELISA for PK assay development together with HCA220 as the capture reagent.
Protocol: PK bridging ELISA to measure total drug.

Description Product Code Applications Pack Size List Price Your Price Quantity
Hispec Assay Diluent BUF049A E IY 50 ml
List Price Your Price
Description Hispec Assay Diluent
Human anti Cetuximab HCA220 E 0.1 mg loader
List Price Your Price
loader
Description Human anti Cetuximab
Human anti Cetuximab HCA221 E 0.1 mg loader
List Price Your Price
loader
Description Human anti Cetuximab
LYNX Rapid HRP Antibody Conjugation Kit LNK002P CJ 3 Conjugations For 400µg Antibody
List Price Your Price
Description LYNX Rapid HRP Antibody Conjugation Kit

References for Cetuximab antibody

  1. Bose, M.E. et al. (2016) Simulated Respiratory Secretion for Use in the Development of Influenza Diagnostic Assays.
    PLoS One. 11 (11): e0166800.
  2. Kashiwagi, N. et al. (2017) Method for measuring anti-drug antibody
    US Patent Application US20170315118A1

Further Reading

  1. Gomez, D. et al. (2013) Cetuximab therapy in the treatment of metastatic colorectal cancer: the future frontier?
    Int J Surg. 11 (7): 507-13.

HCA228

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