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Cat. No.: HY-P9991

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Osemitamab

(Synonyms: TST001)

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Based on 1 Customer Validation

Osemitamab is an IgG1 antibody targeting to human claudin-18.2. Osemitamab consists of human-Mus musculus monoclonal TST001 γ1-chain, disulfide with human-Mus musculus monoclonal TST001 κ-chain, dimer (ACI). Osemitamab in combination with Capecitabine (HY-B0016) and Oxaliplatin (HY-17371), can be used for G/GEJ cancer study.

For research use only. We do not sell to patients.

Purity: 99.43%
CAS No.: 2460539-61-9
Molecular Weight:146.5 kDa

Storage:

Please store the product under the recommended conditions in the Certificate of Analysis.

Osemitamab Chemical Structure

CAS No.: 2460539-61-9

Size

Price

Stock

Quantity

Sample (0.1mg)

In-stock

(In Japan)

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- Description
- Isotype
- Recommend Isotype Controls
- Species Reactivity
- IC₅₀ & Target
- In Vitro
- In Vivo
- Clinical Trial
- Gene ID
- Accession
- Conjugated
- Reconsititution
- Format
- Application
Chemical Information
Purity & Documentation
References
Calculators
Help & FAQs
Bioz

Biological Activity

Description

Isotype

Human IgG1 kappa

Recommend Isotype Controls

Human IgG1 kappa, Isotype Control

Species Reactivity

Human

IC₅₀ & Target

CLDN18.2

In Vitro

Osemitamab (30 μg/mL, 72 h) upregulates the PD-L1 expression CLDN18.2-expressing GC cells^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

In Vivo

Osemitamab (i.p., twice a week) exhibits signifivantly higher tumor growth inhibition when combined with Atezolizumab (HY-P9904) compared to single agents in CLDN18.2+/PD-L1+ mouse syngeneic models ^[3].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Gene ID

51208 [NCBI]

Accession

P56856

Conjugated

Unconjugated

Reconsititution

The product can be reconstituted/diluted with sterile PBS or saline.

Format

Human IgG1 kappa

Application

ELISA, FACS, Functional assay

Chemical Information

CAS No. 2460539-61-9
Appearance Liquid
Molecular Weight 146.5 kDa
Color Colorless to light yellow
SMILES

[Osemitamab]
Synonyms

TST001
Shipping

Shipping with dry ice.
Formulation

Please refer to the lot-specific COA for specific buffer information.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (258 KB)
SDS (251 KB)
- English - EN (251 KB)
- Français - FR (251 KB)
- Deutsch - DE (251 KB)
- Norwegian - NO (251 KB)
- Español - ES (251 KB)
- Swedish - SV (251 KB)
- Italian - IT (251 KB)
- Portuguese - PT (251 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Inhibitory Antibodies User Guide (603 KB)

References

[1]. Shen L, et al. Osemitamab in combination with capecitabine and oxaliplatin (CAPOX) as a first line treatment of advanced G/GEJ cancer: Updated data of cohort C from a phase I/IIa, multi-center study (TranStar102/TST001-1002)[J]. 2023.

[2]. Park Soon Jae, et al. Pharmaceutical composition comprising human hyaluronidase PH20 variants for drug delivery system via subcutaneous injection. World Intellectual Property Organization, WO2023075506 A1. 2023-05-04.

[3]. X. Qian, et al., 1560P Osemitamab (TST001): An ADCC enhanced humanized anti-CLDN18.2 mab, demonstrated improved efficacy in combination with anti-PD-L1/PD-1 mab and oxaliplatin/5-FU in preclinical tumor models. Annals of Oncology, 34(2), S873, 2023.

Calculators

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Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Dilution Calculator

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Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Keywords

100 mg

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Biological Activity
- Description
- Isotype
- Recommend Isotype Controls
- Species Reactivity
- IC50 & Target
- In Vitro
- In Vivo
- Clinical Trial
- Gene ID
- Accession
- Conjugated
- Reconsititution
- Format
- Application
Chemical Information
Purity & Documentation
References

Product Name:
Cat. No.:
Quantity:
MCE Japan Authorized Agent:

Product Name:
CAS No.:
Species:
Purity:
Quantity:

Osemitamab

Protein A Agarose

HOLO Human Interleukin-2 (IL-2) Detection Kit

Bradford Protein Assay Kit

Cell Counting Kit-8

PBS Buffer (1×)

DPBS Buffer (1×)

Cytotoxicity LDH Assay Kit

Antibody Inhibitor Library