Home Angiogenesis Bcr-Abl inhibitor Asciminib (ABL001) For research use only.

Asciminib (ABL001)

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.

Asciminib (ABL001) Chemical Structure

Asciminib (ABL001) Chemical Structure

CAS No. 1492952-76-7

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Asciminib (ABL001) Related Products

Signaling Pathway

Bcr-Abl Signaling Pathways

Bcr-Abl Signaling Pathway

Biological Activity

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.
Targets
Abl1 [1]
(Cell-free assay)
0.45 nM
In vitro
In vitro

ABL001 is a potent, selective BCR-ABL inhibitor that maintains activity across most mutations, including T315I, with a distinct, allosteric mechanism of action[1]. 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[2]. 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[1]. 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[3].
Cell Research Cell lines KCL-22 cells
Concentrations 0-250 nM
Incubation Time 1 h
Method

KCL-22 cells are treated across a range of concentrations of ABL001 for 1 hour. Cells are harvested, protein lysates generated and analyzed with Western Blots.
In Vivo
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[1]. 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)[3].
Animal Research Animal Models Subcutaneous KCL-22 CML xenograft model (athymic nude mice, 6-8 weeks old)
Dosages 7.5, 15 and 30 mg/kg
Administration p.o or i.v
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT06409936 Not yet recruiting
CML Chronic Phase|Chronic Myeloid Leukemia Chronic Phase|Chronic Myeloid Leukemia BCR/ABL-Positive|Chronic Myeloid Leukemia
Gruppo Italiano Malattie EMatologiche dell''Adulto|Fundacion Espanola para la Curacion de la Leucemia Mieloide Cronica
 September 2024 Phase 2
NCT06092879 Recruiting
Chronic Myeloid Leukemia
Novartis Pharmaceuticals|Novartis
 March 6 2024 --
NCT06211153 Completed
Chronic Myeloid Leukemia With T315I Mutation
Novartis Pharmaceuticals|Novartis
 December 31 2021 --
NCT04795427 Active not recruiting
Leukemia Chronic Myelogenous
Novartis Pharmaceuticals|Novartis
 December 6 2021 Phase 2
NCT04492033 Active not recruiting
P1b: Advanced Solid Tumors|P2: Biliary Tract Cancer
Handok Inc.|Compass Therapeutics|ABL Bio Inc.
 June 22 2020 Phase 1|Phase 2

Chemical Information & Solubility

Molecular Weight 449.84 Formula

C20H18ClF2N5O3
CAS No. 1492952-76-7 SDF --
Smiles C1CN(CC1O)C2=C(C=C(C=N2)C(=O)NC3=CC=C(C=C3)OC(F)(F)Cl)C4=CC=NN4
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 89 mg/mL ( (197.84 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 89 mg/mL

Water : Insoluble


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In vivo
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Tech Support

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.

Handling Instructions

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