Molecular Weight(MW): 449.84
Asciminib(ABL001) is a potent and selective allosteric ABL1 inhibitor with dissociation constant (Kd) of 0.5-0.8 nM and selectivity to the myristoyl pocket of ABL1.
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|Description||Asciminib(ABL001) is a potent and selective allosteric ABL1 inhibitor with dissociation constant (Kd) of 0.5-0.8 nM and selectivity to the myristoyl pocket of ABL1.|
ABL001 is a potent, selective BCR-ABL inhibitor that maintains activity across most mutations, including T315I, with a distinct, allosteric mechanism of action. ABL001 binds at a regulatory site typically occupied by a myristoyl group in wild-type ABL and inhibits ABL kinase activity through a mechanism distinct from catalytic site inhibitors. It binds to a pocket on the BCR-ABL kinase domain that is normally occupied by the myristoylated N-terminus of ABL1. Upon fusion with BCR, this myristoylated N-terminus that serves to autoregulate ABL1 activity is lost. ABL001 functionally mimics the role of the myristoylated N-terminus by occupying its vacant binding site and restores the negative regulation of the kinase activity. ABL001 selectively inhibits the growth of chronic myelogenous leukemia (CML) and Ph+ ALL cells with potencies ranging from 1-10 nM range while BCR-ABL-negative cell lines remained unaffected at concentrations 1000-fold higher. NMR and biophysical studies confirm that ABL001 binds potently (dissociation constant (Kd) = 0.5-0.8 nM) and selectively to the myristoyl pocket of ABL1 and induces the inactive C-terminal helix conformation. ABL001 lacks activity against more than 60 kinases, including SRC and is similarly inactive against G-protein-coupled receptors, ion channels, nuclear receptors and transporters. Thus, ABL001 has high selectivity.
|In vivo||In the KCL-22 mouse xenograft model, ABL001 displays potent anti-tumor activity with complete tumor regression observed and a clear dose-dependent correlation with pSTAT5 inhibition. ABL001 has moderate oral absorption, volume of distribution and half-life across all species. It as a single agent induces clinical anti-tumour activity and is well tolerated to date in a heavily pre-treated subgroup of patients with chronic myelogenous leukemia. As for the pharmacokinetics, pharmacodynamics and efficacy of ABL001, The CL (clearance) are 12, 16 and 6 mL/min/kg in mice, rats and dogs after a sigle iv dose of 1mg/kg, 2mg/kg and 1mg/kg, respectively. In mouse and dog, the T1/2term are 1.1 and 3.7 h after a single i.v. dose at 1 mg/kg. In Rat, theT1/2term is 2.7 h after a single i.v. dose at 2 mg/kg. The oral bioavailability of ABL001 in mouse and rat are 35% and 27% respectively when dosed at 30 mg/kg p.o. While in dogs the oral BA of ABL001 is 111% (15 mg/kg, p.o).|
|In vitro||DMSO||89 mg/mL (197.84 mM)|
|Ethanol||89 mg/mL (197.84 mM)|
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
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Clinical Trial Information
|NCT Number||Recruitment||Conditions||Sponsor/Collaborators||Start Date||Phases|
|NCT02857868||Completed||Hepatic Impairment||Novartis Pharmaceuticals|Novartis||May 3 2016||Phase 1|
|NCT03106779||Recruiting||Chronic Myelogenous Leukemia||Novartis Pharmaceuticals|Novartis||October 26 2017||Phase 3|
|NCT03578367||Not yet recruiting||CML|Chronic Myelogenous Leukemia|Leukemia Myeloid Chronic|Hematologic Diseases||Novartis Pharmaceuticals|Novartis||September 25 2018||Phase 2|
|NCT03595917||Recruiting||B-cell Acute Lymphoblastic Leukemia|Chronic Myeloid Leukemia (CML) in Lymphoid Blast Crisis|Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia Ph+ ALL||Marlise R. Luskin|Novartis|Dana-Farber Cancer Institute||July 24 2018||Phase 1|
|NCT02081378||Recruiting||Chronic Myelogenous Leukemia|Philadelphia Chromosome-positive Acute Lymphoblastic Leukemia||Novartis Pharmaceuticals|Novartis||April 24 2014||Phase 1|
|NCT03292783||Recruiting||Advanced Solid Tumors||National OncoVenture|ABL Bio Inc.||September 18 2017||Phase 1|
Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.
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