Riliprubart
Based on 1 Customer Validation
Riliprubart (SAR 445088) is a selective anti-C1s humanized IgG4 monoclonal antibody with mutations that enhance its binding to the neonatal Fc receptor. Riliprubart blocks activation of the classical complement pathway, prevents the formation of the C3 convertase C4b2a, and inhibits complement-mediated hemolytic activity. Riliprubart can be used in research related to classical complement-mediated diseases, cold agglutinin disease, and chronic inflammatory demyelinating polyneuropathy. For the isotype control of Riliprubart, refer to Human IgG4 (S228P) kappa, Isotype Control (HY-P99003).
For research use only. We do not sell to patients.
- Purity: 99.90%
- CAS No.: 2756228-76-7
- Molecular Weight:145.52 kDa
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Human IgG4 kappa
Human
C1s
Riliprubart inhibits the complement pathway and complement-mediated hemolytic activity in a dose-dependent manner, reaching levels consistent with a complement-deficient state[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Unconjugated
The product can be reconstituted/diluted with sterile PBS or saline.
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Human IgG4 kappa
ELISA, FACS, Functional assay
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Immobilized C1s/Complement component C1s Protein, Human (HEK293, His, HY-P700696) can bind Riliprubart. The EC50 for this effect is 3.783 ng/mL. -
Flow Cytometry analysis of A549 cells labelling C1s (red) with Riliprubart (anti-C1s) (HY-P990091). Cells were fixed with 4% paraformaldehyde and permeabilised with 90% methanol. Then cells were stained with the primary antibody at 1/200 dilution for an hour at 4℃. Goat Anti-Human IgG H&L (AF488) (HY-P83776) was used as the secondary antibody at 1/1,000 dilution for 30 minutes at 4℃. Human IgG4 kappa (HY-P99003, blue) was used as the isotype control.
Chemical Information
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CAS No. 2756228-76-7
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Appearance Liquid
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Molecular Weight 145.52 kDa
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Color Colorless to light yellow
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SMILES
[Riliprubart]
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Synonyms
SAR 445088
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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 (257 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]. Chow T, et al. First-in-human study with SAR445088: A novel selective classical complement pathway inhibitor. Clin Transl Sci. 2023;16(4):673-685. [Content Brief]
[2]. D'Sa S, et al. Safety, tolerability, and activity of the active C1s antibody riliprubart in cold agglutinin disease: a phase 1b study. Blood. 2024 Feb 22;143(8):713-720. [Content Brief]
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
- Riliprubart
- 2756228-76-7
- SAR 445088
- SAR445088
- SAR-445088
- Complement System
- Fc Receptor (FcR)
- classical complement-mediated diseases
- classical complement pathway
- complement-mediated hemolytic capacity
- chronic inflammatory demyelinating polyneuropathy
- neonatal Fc receptor
- cold agglutinin disease
- C3 convertase C4b2a
- activated C1s
- Inhibitor
- inhibitor
- inhibit