In the human CLL NSG xenograft model, acalabrutinib demonstrates on-target effects including decreased phosphorylation of PLCγ2, ERK and significant inhibition of CLL cell proliferation. Acalabrutinib significantly decreases tumor burden in the spleen of the mice. In the TCL1 adoptive transfer model, acalabrutinib treatment decreases phosphorylation of BTK, PLCγ2 and S6. Most notably, acalabrutinib results in a significant increase in survival compared to mice receiving vehicle[1]. Acalabrutinib (100 mg twice per day) assessed for thrombus formation at injured arterioles of the mice, exhibits more selective for inhibiting BTK and has virtually no inhibition of platelet activity[2].
In Vitro
IC50: 3 nM (BTK in CD69 B cell)[2]
Kinase Assay
Cell Assay
Animal Administration
References
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