Asciminib - CAS 1492952-76-7
Catalog number: B0084-007699
Category: Inhibitor
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Asciminib, also known as ABL-001, is a potent and selective allosteric Bcr-Abl inhibitor. Asciminib inhibits Ba/F3 cell growth with an IC50 of 0.25 nM.
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B0084-007699 10 mg $248 In stock
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ABL-001; N-[4-[chloro(difluoro)methoxy]phenyl]-6-[(3R)-3-hydroxypyrrolidin-1-yl]-5-(1H-pyrazol-5-yl)pyridine-3-carboxamide
Soluble in DMSO.
Store in a cool and dry place (or refer to the Certificate of Analysis).
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1.Novel tyrosine-kinase inhibitors for the treatment of chronic myeloid leukemia: safety and efficacy.
Massaro F;Colafigli G;Molica M;Breccia M Expert Rev Hematol. 2018 Apr;11(4):301-306. doi: 10.1080/17474086.2018.1451322. Epub 2018 Mar 13.
Chronic myeloid leukemia (CML) is characterized by a pathognomonic chromosomal translocation, which leads to the fusion of breakpoint cluster region (BCR) and Abelson leukemia virus 1 (ABL1) genes, generating an oncoprotein with deregulated tyrosine kinase activity. Areas covered: In the last two decades, BCR/ABL1 kinase has become the molecular target for tyrosine kinase inhibitors (TKIs), a class of drugs that impressively improved overall survival. Despite these results, a proportion of patients experiences resistance to TKIs and need to change treatment. Furthermore, TKIs are unable to eradicate leukemic stem cells, allowing the persistence of neoplastic clones. Therefore, there is still clinical need for new agents to overcome common resistance mechanisms to available drugs. This review explores the horizon of drugs actually under investigation for CML patients resistant to conventional treatment. Expert commentary: Radotinib is an ATP-competitive TKI that showed significant activity also in front-line setting and could find employment indications in CML. Asciminib, an allosteric ABL1 inhibitor, could demonstrate a higher capacity in overcoming common TKIs resistant mutations, including T315I, but clinical findings are needed.
2.The allosteric inhibitor ABL001 enables dual targeting of BCR-ABL1.
Wylie AA;Schoepfer J;Jahnke W;Cowan-Jacob SW;Loo A;Furet P;Marzinzik AL;Pelle X;Donovan J;Zhu W;Buonamici S;Hassan AQ;Lombardo F;Iyer V;Palmer M;Berellini G;Dodd S;Thohan S;Bitter H;Branford S;Ross DM;Hughes TP;Petruzzelli L;Vanasse KG;Warmuth M;Hofmann F;Keen NJ;Sellers WR Nature. 2017 Mar 30;543(7647):733-737. doi: 10.1038/nature21702. Epub 2017 Mar 22.
Chronic myeloid leukaemia (CML) is driven by the activity of the BCR-ABL1 fusion oncoprotein. ABL1 kinase inhibitors have improved the clinical outcomes for patients with CML, with over 80% of patients treated with imatinib surviving for more than 10 years. Second-generation ABL1 kinase inhibitors induce more potent molecular responses in both previously untreated and imatinib-resistant patients with CML. Studies in patients with chronic-phase CML have shown that around 50% of patients who achieve and maintain undetectable BCR-ABL1 transcript levels for at least 2 years remain disease-free after the withdrawal of treatment. Here we characterize ABL001 (asciminib), a potent and selective allosteric ABL1 inhibitor that is undergoing clinical development testing in patients with CML and Philadelphia chromosome-positive (Ph;+;) acute lymphoblastic leukaemia. In contrast to catalytic-site ABL1 kinase inhibitors, ABL001 binds to the myristoyl pocket of ABL1 and induces the formation of an inactive kinase conformation. ABL001 and second-generation catalytic inhibitors have similar cellular potencies but distinct patterns of resistance mutations, with genetic barcoding studies revealing pre-existing clonal populations with no shared resistance between ABL001 and the catalytic inhibitor nilotinib.
3.Second line small molecule therapy options for treating chronic myeloid leukemia.
Molica M;Massaro F;Breccia M Expert Opin Pharmacother. 2017 Jan;18(1):57-65. doi: 10.1080/14656566.2016.1267141. Epub 2016 Dec 9.
Approximately 33% of chronic myeloid leukemia (CML) patients discontinue treatment with imatinib in the long-term due to resistance and/or intolerance. Second-generation tyrosine kinase inhibitors (TKIs) (dasatinib, nilotinib, bosutinib) and third-generation (ponatinib) have added complexity to the treatment paradigm for this disease. Areas covered: Second generation TKIs, approved as second-line treatment in all phases of the disease, are highly effective in patients resistant to and/or intolerant to imatinib and are extremely active against all the resistant BCR-ABL1 mutations, with the exception of T3151. Ponatinib, active against all BCR-ABL1 mutants including T315I, became widely used for resistant patients in all phases of disease after previous therapies. Other drugs, such as ABL001, which targets the myristoyl pocket of the ABL1 kinase, are currently in development, to offer therapeutic alternatives for resistant patients to ATP-binders. Expert opinion: In this review, we summarize the efficacy of second line small molecules available. Specific safety profiles have emerged for each drug from sponsored clinical trials in the long-term. Stratification of patients according to comorbidities and cardiovascular risk is now needed to individualize second line treatment.
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CAS 1492952-76-7 Asciminib

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