Verekitug
Based on 1 Customer Validation
Verekitug (ASP-7266; TRAB-1; UPB-101) is a human monoclonal antibody targeting the thymic stromal lymphopoietin receptor (TSLPR), with a mean half-life of approximately 20 days. At doses of Verekitug ≥100 mg, complete and sustained TSLPR-specific occupancy is achieved, and the antibody does not bind to IL-7Rα. By inhibiting TSLP-driven inflammatory responses, Verekitug blocks TSLP-induced cell proliferation and TARC expression, while reducing fractional exhaled NO levels, blood eosinophil counts, and levels of IL-5 and IgE. Verekitug significantly improves scores for nasal polyps, nasal congestion and olfactory dysfunction, with favorable safety and good tolerability; potential adverse reactions include headache, upper respiratory tract infection, sinusitis and nasopharyngitis. Verekitug is used in relevant studies on asthma, chronic rhinosinusitis with nasal polyps and chronic obstructive pulmonary disease.
For research use only. We do not sell to patients.
- Purity: 97.00%
- CAS No.: 2768386-15-6
- Molecular Weight:144 kDa
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Human IgG1 kappa
Human
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IL7R |
IL-5Rα |
Verekitug binds human TSLPR with subpicomolar affinity, inhibits TSLP binding to TSLPR, and shows superior potency in TSLP-driven functional assays compared to the reference drug tezepelumab[1].
Verekitug potently inhibits TSLP-induced proliferation of Ba/F3 cells expressing human TSLPR at ~6-fold the potency of a benchmark anti-TSLP antibody, and inhibits TSLP-induced TARC expression by human PBMCs at ~4-fold the potency of a benchmark anti-TSLP antibody[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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Human IgG1 kappa
ELISA, FACS, Functional assay
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Loaded Verekitug on AHC2 biosensor, can bind TSLP R Protein, Human (HEK293, His, HY-P71389) with an affinity constant of 1.847E-10 M as determined in BLI assay.
Chemical Information
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CAS No. 2768386-15-6
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Appearance Liquid
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Molecular Weight 144 kDa
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Color Colorless to light yellow
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Synonyms
ASP-7266; TRAB-1; UPB-101
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Shipping
Shipping with dry ice.
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Formulation
Please refer to the lot-specific COA for specific buffer information.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
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Data Sheet (260 KB)
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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)
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Inhibitory Antibodies User Guide (603 KB)
References
[1]. Singh D, et al. Verekitug, a Novel Antibody Antagonist to the TSLP Receptor in Adults with Asthma: A 32-Week Randomized Phase 1b Multiple Ascending-Dose Trial. Clin Pharmacol Ther. 2026;119(3):782-790. [Content Brief]
[2]. Komori HK, et al. Potential of alarmin-targeted bispecific and combination therapies in airway disease. Front Allergy. 2025;6:1700060. Published 2025 Dec 2. [Content Brief]
[3]. Hansi RK, et al. Regulation of Airway Epithelial-Derived Alarmins in Asthma: Perspectives for Therapeutic Targets. Biomedicines. 2024;12(10):2312. Published 2024 Oct 11. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
- Verekitug
- 2768386-15-6
- ASP-7266
- TRAB-1
- UPB-101
- ASP7266
- ASP 7266
- TRAB1
- TRAB 1
- TRAB-1
- UPB101
- UPB 101
- UPB-101
- Interleukin Related
- IL-7Rα
- Ba/F3 cells
- thymic stromal lymphopoietin receptor
- immunoglobulin E
- anti-thymic stromal lymphopoietin receptor monoclonal antibody
- blood eosinophils
- human PBMCs
- interleukin-5
- TSLPR
- TARC
- Inhibitor
- inhibitor
- inhibit