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Therapeutic Antibody & Biosimilar ELISA Kits

Therapeutic Antibody & Biosimilar ELISA Kits

ELISA Kits for Therapeutic mAbs, ADAs & Biosimilars

Quantitative and Qualitative Free Drug and ADA ELISA for Biologics & Biosimilars

Features

  • Less Volume | 10μL of sample per well

  • Precise Technology | Inter and intra assay CV in accordance with FDA & EMEA requirements

  • High Quality | Manufactured in Europe under ISO 13485 quality systems

  • Validated | Validation, verification and lot release performed according to best-in-class scientific guidelines

Benefits

  • Quantitative | Measure the worlds leading therapeutic antibodies & biosimilars

  • Screening | Qualitative, quantitative & free/total kits enabling full screening of deleterious Anti-Drug Antibodies (ADAs)

  • Fast | Results in as little as 55 minutes for some kits

  • Convinient | All kits shipped at room temperature

Anti-Adalimumab (Humira®) Free Drug/ADA Dual ELISA Drug Tolerant Assay: This unique kit enables the detection of Free and Total Anti-Drug Antibodies (ADA) to Adalimumab simultaneously on the same plate.

Applications

Therapeutic antibody & biosimilar monitoring is routinely implemented in inflammatory diseases to improve outcome and reduce treatment costs. TDM provides a means to test the pharmacokinetic (PK) and pharmacodynamic (PD) properties of a drug, providing more robust results in patient monitoring and experimental designs.

This results in an increased efficacy of response, decreased chance of toxicity and immunogenicity. It also allows for the detection of anti-drug antibodies (ADAs) that can occur with the use of biological therapeutics and hinder drug efficacy.

Advantages Description

Simple and Inexpensive

No expensive equipment or special handling required

Highly Sensitive and Specific

No significant cross-reactivity or interface with other proteins present in native human serum or other therapeutic immunoglobulins

Accurate

Low intra and inter-assay variability

Cost savings

Can lead to the discontinuation of ineffective biologic treatments

Therapeutic mAb & Biosimilar ELISA Kits by Research Area

Anti-Cancer

Current therapeutic antibodies prevent angiogenesis, immune cell evasion and apoptosis inhibition and are used in lung cancer, colon cancer, glioblastomas, solid tumours, breast cancer, colorectal cancer and multiple myeloma.

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Ramucirumab (Cyramza®)
Product CodeHUMB00022
ELISA TypeFree drug
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Anti-Ramucirumab (Cyramza®) ADA
Product CodeHUMB00023
ELISA TypeAntibody screening - Qualitative
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Bevacizumab (Avastin®)
Product CodeHUMB00024
ELISA TypeFree drug
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Anti-Bevacizumab (Avastin®) ADA
Product CodeHUMB00025
ELISA TypeAntibody screening - Qualitative
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Anti-Bevacizumab (Avastin®) ADA
Product CodeHUMB00026
ELISA TypeAntibody screening - Quantitative
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Rituximab (Rituxan®, Mabthera®)
Product CodeHUMB00024
ELISA TypeFree drug
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Anti-Rituximab (Rituxan®, Mabthera®) ADA
Product CodeHUMB00025
ELISA TypeAntibody screening - Qualitative
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Anti-Rituximab (Rituxan®, Mabthera®) ADA
Product CodeHUMB00026
ELISA TypeAntibody screening - Quantitative
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Rituximab (Rituxan®, Mabthera®)
Product CodeHUMB00027
ELISA TypeFree drug
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Anti-Rituximab (Rituxan®, Mabthera®) ADA
Product CodeHUMB00028
ELISA TypeAntibody screening - Qualitative
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Anti-Rituximab (Rituxan®, Mabthera®) ADA
Product CodeHUMB00029
ELISA TypeAntibody screening - Quantitative
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Trastuzumab ELISA Kit (Herceptin®/Herclon®)
Product CodeHUMB00030
ELISA TypeFree drug
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Anti-Trastuzumab (Herceptin®, Herclon®) ADA
Product CodeHUMB00031
ELISA TypeAntibody screening - Qualitative
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Anti-Trastuzumab (Herceptin®, Herclon®) ADA
Product CodeHUMB00032
ELISA TypeAntibody screening - Quantitative
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Cetuximab (Erbitux®)
Product CodeHUMB00033
ELISA TypeFree drug
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Anti-Cetuximab (Erbitux®) ADA
Product CodeHUMB00034
ELISA TypeAntibody screening - Qualitative
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Anti-Cetuximab (Erbitux®) ADA
Product CodeHUMB00035
ELISA TypeAntibody screening - Quantitative
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Aflibercept (Eylea®)
Product CodeHUMB00054
ELISA TypeFree drug
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Aflibercept (Eylea®) ADA
Product CodeHUMB00055
ELISA TypeAntibody screening - Qualitative
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Daratumumab (Darzalex®)
Product CodeHUMB00062
ELISA TypeFree drug
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Daratumumab (Darzalex®) ADA
Product CodeHUMB00063
ELISA TypeAntibody screening - Qualitative

Checkpoint Inhibitors

Increasing knowledge of how tumours undergo immune evasion has led to the discovery of drugs called checkpoint inhibitors. These immunotherapies can prevent this override of the immune system, and allow the cancer to be detected and destroyed. These biologics are currently used to treat Merkel Cell Carcinoma (MCC), Melanoma, lung cancer, renal cell carcinoma and head and neck cancer.

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Avelumab (Bavencio®)
Product CodeHUMB00042
ELISA TypeFree drug
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Anti-Avelumab (Bavencio®) ADA
Product CodeHUMB00043
ELISA TypeAntibody screening - Qualitative
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Nivolumab (Opdivo®)
Product CodeHUMB00044
ELISA TypeFree drug
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Anti-Nivolumab (Opdivo®) ADA
Product CodeHUMB00045
ELISA TypeAntibody screening - Qualitative
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Pembrolizumab (Keytruda®)
Product CodeHUMB00046
ELISA TypeFree drug
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Anti-Pembrolizumab (Keytruda®) ADA
Product CodeHUMB00047
ELISA TypeAntibody screening - Qualitative
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Ipilimumab (Yervoy®)
Product CodeHUMB00048
ELISA TypeFree drug
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Anti-Ipilimumab (Yervoy®) ADA
Product CodeHUMB00049
ELISA TypeAntibody screening - Qualitative
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Durvalumab (Imfinzi®)
Product CodeHUMB00058
ELISA TypeFree drug
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Durvalumab (Imfinzi®) ADA
Product CodeHUMB00059
ELISA TypeAntibody screening - Qualitative
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Atezolizumab (Tecentriq®)
Product CodeHUMB00060
ELISA TypeFree drug
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Atezolizumab (Tecentriq®) ADA
Product CodeHUMB00061
ELISA TypeAntibody screening - Qualitative

Anti-Inflammatory

While providing us defence against pathogens, the immune response can also turn inwards and trigger autoimmune disorders. Knowledge of the biochemical pathways involved in inflammation has allowed researchers to target specific agents with therapeutic antibodies/biologics to decrease disease burden, such as arthritis, inflammatory bowel disease, psoriasis, muckle wells disease and many more.

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Vedolizumab (Entyvio®) ELISA Kit
Product CodeHUMB00018
ELISA TypeFree drug
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Anti-Vedolizumab (Entyvio®) ADA Qualitative ELISA Kit
Product CodeHUMB00019
ELISA TypeAntibody screening - Qualitative
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Ustekinumab (Stelara®)
Product CodeHUMB00020
ELISA TypeFree drug
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Anti-Ustekinumab (Stelara®) ADA
Product CodeHUMB00021
ELISA TypeAntibody screening - Qualitative
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Tocilizumab (Actemra®)
Product CodeHUMB00050
ELISA TypeFree drug
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Anti-Tocilizumab (Actemra®)
Product CodeHUMB00051
ELISA TypeAntibody screening - Qualitative
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Natalizumab (Tysabri®)
Product CodeHUMB00052
ELISA TypeFree drug
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Anti-Natalizumab (Tysabri®) ADA
Product CodeHUMB00053
ELISA TypeAntibody screening - Qualitative
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Canakinumab (Ilaris®)
Product CodeHUMB00056
ELISA TypeFree drug
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Anti-Canakinumab (Ilaris®) ADA
Product CodeHUMB00057
ELISA TypeAntibody screening - Qualitative
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Abatacept (Orencia®)
Product CodeHUMB00068
ELISA TypeFree drug
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Anti-Abatacept (Orencia®) ADA
Product CodeHUMB00069
ELISA TypeAntibody screening - Qualitative
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Secukinumab (Cosentyx® , Verxant®)
Product CodeHUMB00066
ELISA TypeFree drug
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Anti-Secukinumab (Cosentyx® , Verxant®) ADA
Product CodeHUMB00067
ELISA TypeAntibody screening - Qualitative
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Palivizumab (Synagis®) ELISA
Product CodeHUMB00070
ELISA TypeFree drug
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Palivizumab (Synagis®) Qualitative ELISA
Product CodeHUMB00071
ELISA TypeAntibody screening
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Palivizumab (Synagis®) Quantitive ELISA
Product CodeHUMB00072
ELISA TypeQuantitive

Anti-TNFα

Dysregulation in TNFα signalling is a common occurrence in inflammatory disorders. Thus, a range of therapeutic antibodies have been developed to treat a number of pathologies such as; rheumatoid arthritis, Crohn’s disease, ulcerative colitis and psoriasis. Using TDM for these antibodies during treatment is of great benefit in monitoring patient response, optimising dosage and preventing immunogenicity.

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Infliximab (Remicade®)
Product CodeHUMB00001
ELISA TypeFree drug
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Anti-Infliximab (Remicade®) ADA
Product CodeHUMB00002
ELISA TypeAntibody screening - Qualitative
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Anti-Infliximab (Remicade®) ADA
Product CodeHUMB00003
ELISA TypeAntibody screening - Quantitative
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Anti-Infliximab (Remicade®) Free Drug/ADA Dual ELISA
Product CodeHUMB00004
ELISA TypeAntibody screening - Free/Total semiquantitative
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Infliximab (Remsima®)
Product CodeHUMB00005
ELISA TypeFree drug
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Anti-Infliximab (Remsima®) ADA
Product CodeHUMB00006
ELISA TypeAntibody screening - Qualitative
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Anti-Infliximab (Remsima®) ADA
Product CodeHUMB00007
ELISA TypeAntibody screening - Quantitative
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Anti-Infliximab (Remsima®) ADA
Product CodeHUMB00008
ELISA TypeAntibody screening - Total semiquantitative
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Adalimumab (Humira®)
Product CodeHUMB00009
ELISA TypeFree drug
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Anti-Adalimumab (Humira®) ADA
Product CodeHUMB00010
ELISA TypeAntibody screening - Qualitative
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Anti-Adalimumab (Humira®) ADA
Product CodeHUMB00011
ELISA TypeAntibody screening - Quantitative
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Anti-Adalimumab (Humira®) Free Drug/ADA Dual ELISA
Product CodeHUMB00012
ELISA TypeAntibody screening - Free/Total semiquantitative
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Etanercept (Enbrel®)
Product CodeHUMB00013
ELISA TypeFree drug
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Anti-Etanercept (Enbrel®) ADA
Product CodeHUMB00014
ELISA TypeAntibody screening - Qualitative
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Golimumab (Simponi®)
Product CodeHUMB00015
ELISA TypeFree drug
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Anti-Golimumab (Simponi®) ADA
Product CodeHUMB00016
ELISA TypeAntibody screening - Qualitative
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Certolizumab (Cimzia®)
Product CodeHUMB00017
ELISA TypeFree drug

Wet AMD

Macular degeneration is a debilitating illness of the eye that ultimately releases in loss of central vision. Most treatments involve biologics that target VEGF or its receptors to prevent damaging angiogenesis.

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Ranibizumab (Lucentis®) ELISA Kit
Product CodeHUMB00041
ELISA TypeFree drug
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Bevacizumab (Avastin®) ELISA Kit
Product CodeHUMB00024
ELISA TypeFree drug
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Anti-Bevacizumab (Avastin®) ADA
Product CodeHUMB00025
ELISA TypeAntibody screening - Qualitative
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Anti-Bevacizumab (Avastin®) ADA
Product CodeHUMB00026
ELISA TypeAntibody screening - Quantitative
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Ranibizumab (Lucentis®)
Product CodeHUMB00041
ELISA Typefree drug
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Aflibercept (Eylea®)
Product CodeHUMB00054
ELISA TypeFree drug
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Aflibercept (Eylea®) ADA
Product CodeHUMB00055
ELISA TypeAntibody screening - Qualitative

Anti-Allergy and Asthma

Incidences of allergy and allergic asthma are on the rise worldwide. Treatments for asthma focus on treating the secondary symptoms. Biologics have been created to bind to free IgE in the treatment of asthmatics who are unresponsive to corticosteroids.

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Omalizumab (Xolair®)
Product CodeHUMB00039
ELISA TypeFree drug
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Anti-Omalizumab (Xolair®) ADA
Product CodeHUMB00040
ELISA TypeAntibody screening - Qualitative

Immune Stimulation

Neutropenia refers to an abnormally low concentration of neutrophils in the blood, and can result in a range of harmful side effects that is commonly seen in patients receiving chemotherapy and HIV. It can be treated with exogenous G-CSF.

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Anti-Filgrastim ADA
Product Code HUMB00038
ELISA Type Antibody screening - Quantitative

Obesity

Biologics have been developed to combat obesity that present with hyperlypidemia to allow LDL to be removed from the blood.

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Evolocumab (Repatha® )
Product CodeHUMB00064
ELISA TypeFree drug
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Evolocumab (Repatha® ) ADA
Product CodeHUMB00065
ELISA TypeAntibody screening - Qualitative

Osteoporosis

With age and hormone changes, alterations occur in bone homeostasis that lead to degeneration of bone cells. By targeting RANK-L, it is possible to prevent the growth of osteoclasts that breakdown bone.

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Denosumab (Prolia®)
Product CodeHUMB00036
ELISA TypeFree drug
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Anti-Denosumab (Prolia®) ADA
Product CodeHUMB00037
ELISA TypeAntibody screening - Qualitative

Overview of Therapeutic antibodies, biosimilars and ADA

Therapeutic mAb & Biosimilar ELISA Overview

Therapeutic antibody monitoring is the clinical practice of measuring specific drugs at designated intervals in order to maintain a constant concentration in a patient's bloodstream, thereby optimizing individual dosage regimens.

At Assay Genie, we have developed a range of ELISA kits for:

  1. Therapeutic Antibodies

  2. Anti-Drug Antibodies (ADAs)

  3. Biosimilars

These ELISA Kits allow clinicians to adjust a therapeutic antibody dose according to the individual pharmacokinetic characteristics of each patient. The optimal therapeutic concentration can therefore be achieved more rapidly while minimizing drug toxicity. Additionally, these ELISA Kits can help to identify problems with medication compliance among non-compliant patient cases.

Anti-Adalimumab (Humira®) Free Drug/ADA Dual ELISA Drug Tolerant Assay: The immune complex is composed of Adalimumab bound to an Anti-Adalimumab human monoclonal antibody at an equimolar ratio. This drug tolerant assay uses acid dissociation (Green Bar) to measure the levels of bound ADA that can otherwise not be measured by traditional drug sensitivity assays (Purple bar) as Adalimumab is in a complex with Anti-Adalimumab antibodies thus preventing detection.

Anti-Drug Antibody (ADA) ELISA

Therapeutic antibodies can produce an immune response which leads to the production of anti-drug antibodies (ADA). Most ADA responses to therapeutic monoclonal antibodies (mAbs) are directed against the antigen-binding site of the biologic, and hence are neutralizing. This anti-drug antibody response explains why even fully human antibodies can still be highly immunogenic.

Anti-drug antibodies cause undesired immunogenicity, which can reduce the therapeutic effects of the biologic treatment. ADAs can also result in unwanted adverse effects in some cases. Detecting and monitoring the level of anti-drug antibodies can be of high importance when assessing adverse drug reactions.

Biosimilar ELISA

A biosimilar is a biologic product with highly similar quality, safety and efficacy characteristics to an already approved biotechnological product (reference product). There are no clinically meaningful differences between the biosimilar and the reference biologic in terms of these product standards. Today, as data exclusivity periods of first wave biologics approach expiration/have expired, several biosimilar products are being developed or have already been approved for human use.

Biosimilars are structurally complex proteins that are typically manufactured using genetically engineered animal, bacterial or plant cell culture systems. As a consequence of this molecular complexity and the proprietary nature of the manufacturing process, which will inevitably result in the use of different host cell lines and expression systems as well as related differences in manufacturing conditions, it is not possible to manufacture exact copies of a reference biologic.

Therapeutic mAb & Biosimilar ELISA Kit Protocol

Schematic of Theraputic Drug Monitoring (TDM) ELISA kit protocol

Protocol Steps

Steps Protocol

1

Pipette 100µl of Assay Buffer non-exceptionally into each of the wells to be used.

2

Pipette 10 µL of each ready-to use Standards, High Level Control, Low Level Control and Diluted Samples into the respective wells of microtiter plate.

Wells
A1: Standard A
B1: Standard B
C1: Standard C
D1: Standard D
E1: Standard E
F1: High Level Control
G1: Low Level Control
H1 and on: Sample (Serum / Plasma)

3

Cover the plate with adhesive foil. Incubate 30 min at room temperature (18- 25°C).

4

Remove adhesive foil. Discard incubation solution. Wash plate 3 times each with 300µL of diluted. Wash Buffer. Remove excess solution by tapping the inverted plate on a paper towel.

5

Pipette 100 µL of ready-to use HRP-Conjugated Probe into each well.

6

Cover the plate with adhesive foil. Incubate 30 min at room temperature (18- 25°C).

7

Remove adhesive foil. Discard incubation solution. Wash plate 3 times each with 300 µL of diluted Wash Buffer. Remove excess solution by tapping the inverted plate on a paper towel.

8

Pipette 100 µL of TMB Substrate Solution into each well.

9

Incubate 10 min (without adhesive foil) at room temperature (18-25°C) in the dark

10

Stop the substrate reaction by adding 100 µL of Stop Solution into each well. Briefly mix contents by gently shaking the plate. Colour changes from blue to yellow.

11

Measure optical density with a photometer at 450/650 nm within 30 min after pipetting of the Stop Solution.

Detection Strategies for Therapeutic mAb & Biosimilar ELISA Kits

The detection step in an ELISA is last step to measure the amount of analyte that you have in your sample. The signal generated during the detection step is proportional to the amount of analyte bound.

Chromogenic is the most popular and most widely used technique for ELISA detection and involves the horse radish peroxidase (HRP) substrate TMB (3, 3’, 5, 5’-tetramethylbenzidine) which yields a blue colour when oxidized and turns to yellow following the addition of sulphuric acid. Which allows samples to be read at 450nm on an ELISA plate reader.

Calculating the results using the following equation:

The relative O.D.450 = (the O.D.450 of each well) – (the O.D.450 of Zero well)

The standard curve can be plotted as the relative O.D.450 of each standard solution (Y) vs. the respective concentration of the standard solution (X). The concentration of the samples can be determined from the standard curve. It is recommended to use professional software such as curve expert 1.3.

Therapeutic mAb & Biosimilar ELISA Kit FAQs

FAQs

1.) How should my ELISA Kit be stored?

The kit is shipped at ambient temperature (10-30°C) and should be stored at 2-8°C for long term storage. Keep away from heat or direct sunlight.

2.) There was a weak/no signal in my ELISA results, what could have caused this?

Possible Cause Possible Solution

Reagents not at room temperature

All reagents should at room temperature from the start of the assay. Room temperature should be reached following 15–20 minutes on the bench.

Incubation time too short

Follow manufacturer guidelines in the technical manuals

Incorrect wavelength

Manufactured kits have optimized protocols. Make sure to use recommended wavelength. Ensure plate reader is set accurately for type of substrate being used

Target present below detection limits of assay

Decrease dilution factor or concentrate samples

3.) Poor standard curve in results?

Reagents are poorly mixed, the standard has degraded or pipetting errors.

For more troubleshooting suggestions vist our 101 ELISA Troubleshooting Tips!