New anti-evolocumab antibodies could aid drug development

Vials for medical research

Bio-Rad Laboratories 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.

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.

Related Articles

Join FREE today and become a member
of Drug Discovery World

Membership includes:

  • Full access to the website including free and gated premium content in news, articles, business, regulatory, cancer research, intelligence and more.
  • Unlimited App access: current and archived digital issues of DDW magazine with search functionality, special in App only content and links to the latest industry news and information.
  • Weekly e-newsletter, a round-up of the most interesting and pertinent industry news and developments.
  • Whitepapers, eBooks and information from trusted third parties.
Join For Free