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PD-L1 Inhibitor · Humanised Engineered IgG1 mAb

Atezolizumab Tecentriq®

Atezolizumab is a humanised engineered monoclonal antibody directed against programmed death-ligand 1 (PD-L1). The SHIKARI® Atezolizumab portfolio supports quantitative analysis of free atezolizumab and qualitative detection of specific anti-atezolizumab antibodies in human serum or plasma.

2
SHIKARI® Kits
96
Tests per kit
2
Analytical Domains
RUO
Research Use Only
Parallel tracks crossing a wheat field, the official Atezolizumab Trace & Catch visual
TRACE & CATCH · ATEZOLIZUMAB
Scientific Background

Why Atezolizumab is relevant to biological-drug monitoring research

Atezolizumab has clinically important target biology, indication-specific dosing and measurable systemic exposure, making drug concentration and immunogenicity relevant research variables. Scientific source ↗ · EMA source ↗

Mechanism

Molecular Target & Structure

Atezolizumab is a monoclonal antibody directed against PD-L1, blocking PD-L1 interactions with PD-1 and B7.1 and thereby reducing inhibitory signalling to anti-tumour T cells. Source ↗

Indications

Approved Indications

EMA-listed uses include selected settings in urothelial carcinoma, non-small cell and small cell lung cancers, triple-negative breast cancer and hepatocellular carcinoma, as monotherapy or in defined combinations. EMA source ↗

Published Evidence

Model-Informed Minimum Concentration

A regimen-development analysis reported a model-informed minimum serum concentration used during dose selection:

Model-informed Cmin6 µg/mL ↗

Research-associated ranges, not universal treatment cut-offs. Values vary by endpoint, timing, assay method and population. This page is for RUO product information and does not provide clinical guidance.

SHIKARI® Kit Portfolio

Two verified Atezolizumab research assays

SHIKARI Q-ATE Atezolizumab ELISA kit photograph
Drug Levels Kit
SHIKARI® Q-ATE
Quantitative Analysis of Free Atezolizumab (Tecentriq®) ELISA
REF: ATE-FD-TEC

Ligand-binding, sandwich-principle ELISA for the quantitative analysis of free atezolizumab capable of binding PD-L1 in human serum or plasma.

Representative Standard Curve
SHIKARI Q-ATE representative standard curve for illustrative purposes only
96Tests/kit
2–8°CStorage
10–30°CShipment
QuantitativeFree DrugLigand BindingSerum / Plasma
SHIKARI S-ATAT qualitative Anti-Atezolizumab ELISA kit photograph
Qualitative ADA Kit
SHIKARI® S-ATAT
Qualitative Determination of Antibodies to Atezolizumab (Tecentriq®) ELISA
REF: ATE-QLS-TEC

Sandwich-principle ELISA for qualitative detection of binding antibodies to atezolizumab in human serum or plasma, reported as positive or negative according to the assay-specific cut-off criteria.

96Tests/kit
2–8°CStorage
10–30°CShipment
QualitativeBinding ADASandwich PrincipleSerum / Plasma
Technical Reference

Kit Specifications at a Glance

Kit NameCatalog CodeModeAnalyteSampleVolumeRun TimeAnalytical Output / LODTestsShelf LifeStorageShipping
SHIKARI® Q-ATEATE-FD-TECQuantitativeFree atezolizumabHuman serum / plasma10 µL70 minLOD 5 ng/mL · LOQ 10 ng/mL961 year2–8°C10–30°C
SHIKARI® S-ATATATE-QLS-TECQualitativeAntibodies to atezolizumabHuman serum / plasma20 µL140 minPositive / negative961 year2–8°C10–30°C

Q-ATE has a lowest detection limit (LOD) of 5 ng/mL and functional sensitivity (LOQ) of 10 ng/mL. Follow the link on each assay card for the current official product record on matriksbiotek.com.

Kit Selection Guide

Which assay fits your research question?

Choose the quantitative free-drug assay or qualitative anti-drug-antibody assay according to the analytical output required by the study.

01
Quantify free atezolizumab
Use ATE-FD-TEC for quantitative measurement of free atezolizumab in human serum or plasma.
02
Screen for antibodies to atezolizumab
Use ATE-QLS-TEC when the study requires a qualitative positive-or-negative anti-atezolizumab antibody result.
03
Study exposure and immunogenicity together
Add ATE-FD-TEC and ATE-QLS-TEC when the study design requires paired free-drug concentration and qualitative antibody information.
04
Review the official product source
Use the matriksbiotek.com link on each assay card for the current official Q-ATE or S-ATAT product record.
Scientific Literature

Publications Using SHIKARI® Atezolizumab Kits 1

All journal publications below are drawn from the Matrix Biotek Publications library and are shown newest first. Records are included when the publication database identifies the biological drug and SHIKARI® product use.

2026
Ouchi, Keishi, et al. "Clinical Significance of Anti‐Atezolizumab Antibodies in Patients With Unresectable Hepatocellular Carcinoma Treated With Atezolizumab Plus Bevacizumab." Hepatology Research (2026).
Shikari® (Q-ATE) Atezolizumab ELISAShikari® (S-ATAT) Anti-Atezolizumab ELISA
View publication →
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Ready to order, or need technical guidance?

Matrix Biotek can help identify the appropriate Atezolizumab assay and prepare regional quotation and delivery information. SHIKARI® products are developed and manufactured in Ankara and supported through our European headquarters in Barcelona.

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Your quotation request is sent directly to Matrix Biotek. A confirmation copy will be sent to your institutional email. No payment is taken online. Current regional pricing, availability and delivery information will be provided in the quotation.

Technical Support