Antibodies for bioanalysis and drug monitoring of avelumab

Develop highly selective and sensitive PK and ADA assays for the antibody drug avelumab (Bavencio) using our range of ready-made anti-idiotypic antibodies.

  • Highly specific to avelumab or the avelumab/PD-L1 complex
  • Fully human surrogate positive control or calibrator
  • Sequence defined, well characterized reagents with secure supply
  • Recombinant production, stringent quality control for batch to batch consistency
  • Non-animal-derived antibodies, reducing the use of animals in science

Table 1. Antibodies Specific to Avelumab and Avelumab/PD-L1 Complex 

Specificity
Binding Type

Catalog Number

Clone

Format

Affinity* KD, nM

Assay Recommendation

Product Details

Avelumab Inhibitory

Type 1

HCA396

AbD40519ia

hIgG1

0.9

ADA assay

Order HCA396

HCA397

AbD40525ia

hIgG1

 

11

ADA assay

Order HCA397

HCA398

AbD40526ia

hIgG1

6

ADA assay

Order HCA398

TZA041

AbD40521ad

Fab-F-Spy2-H1

1

PK bridging ELISA (capture)

Order TZA041

TZA040

AbD40519ad

Fab-F-Spy2-H1

0.9

PK bridging ELISA (detection)

Order TZA040

TZA040P

AbD40519pap

Fab2-FH-X22-HRP2

0.9

PK bridging ELISA (detection)

Order TZA040P

Avelumab / PD-L1 Complex Specific

Type 3

TZA042

AbD42040ad

Fab-F-Spy2-H1

4

PK ELISA antigen capture format (detection)

Order TZA042

TZA042P

AbD42040pap

Fab2-FH-X22-HRP2

4

PK ELISA antigen capture format (detection)

Order TZA042P

* Affinity measured in the monovalent Fab format
1 Fab-F-Spy2-H = Monovalent Fab antibody with (F) DYKDDDDK, (Spy2) SpyTag version 2, and (H) His-6-tags
Fab2-FH-X22-HRP= Bivalent Fab antibody with (F) DYKDDDDK, (H) His-6-tags and Fab-SpyTag coupled to HRP conjugated BiCatcher


Anti-Avelumab Inhibitory Antibodies (Type 1)

The Type 1 anti-avelumab antibodies inhibit the binding of the drug avelumab to its target, programmed cell death ligand 1 (PD-L1). They are ideal for development of a pharmacokinetic (PK) bridging ELISA to measure free drug. In fully human IgG1 format, they are suitable as a surrogate positive control or calibrator for an anti-drug antibody (ADA) assay.


Anti-Avelumab/PD-L1 Complex-Specific Antibodies (Type 3)

The Type 3 antibody specifically recognizes the drug-target complex, detecting avelumab only when it is bound to PD-L1. It is suitable as a detection antibody in a PK antigen capture assay.


ELISA Protocols to Get You Started

PK Bridging ELISA


Fig. 1. Avelumab PK bridging ELISA using antibodies TZA041 and TZA040P.

Fig. 1. Avelumab PK bridging ELISA using antibodies TZA041 and TZA040P.

Schematic image of PK bridging ELISA measuring free drug.

Schematic image of PK bridging ELISA measuring free drug. Anti-idiotypic capture antibody, Fab format (purple), monoclonal antibody drug (gold), anti-idiotypic detection antibody, Fab format (purple) labeled with HRP.


PK Antigen Capture ELISA


Fig. 2. Avelumab PK antigen capture ELISA using antibody TZA042P.

Fig. 2. Avelumab PK antigen capture ELISA using antibody TZA042P.

Schematic image of PK antigen capture ELISA. Drug target (red), monoclonal antibody drug (gold), drug target complex detection antibody, monovalent Fab format (purple), labeled with HRP.

Schematic image of PK antigen capture ELISA. Drug target (red), monoclonal antibody drug (gold), drug target complex detection antibody, monovalent Fab format (purple), labeled with HRP.


ADA Bridging ELISA


Fig. 3. Avelumab ADA bridging ELISA using antibody HCA396, HCA397, and HCA398.

Fig. 3. Avelumab ADA bridging ELISA using antibody HCA396, HCA397, and HCA398.

Schematic image of ADA bridging assay. Monoclonal antibody drug as capture antibody and detection antibody labeled with HRP (gold), fully human anti-idiotypic antibody, Ig format (blue).

Schematic image of ADA bridging assay. Monoclonal antibody drug as capture antibody and detection antibody labeled with HRP (gold), fully human anti-idiotypic antibody, Ig format (blue).


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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.