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Ref Type Journal Article
PMID (34221866)
Authors Wang Z, Zhang Z, Li Y, Sun L, Peng D, Du D, Zhang X, Han L, Zhao L, Lu L, Du H, Yuan S, Zhan M
Title Preclinical efficacy against acute myeloid leukaemia of SH1573, a novel mutant IDH2 inhibitor approved for clinical trials in China.
Journal Acta pharmaceutica Sinica. B
Vol 11
Issue 6
Date 2021 Jun
URL
Abstract Text Acute myeloid leukaemia (AML) is the most common form of acute leukaemia in adults, with increasing incidence with age and a generally poor prognosis. Almost 20% of AML patients express mutant isocitrate dehydrogenase 2 (mIDH2), which leads to the accumulation of the carcinogenic metabolite 2-hydroxyglutarate (2-HG), resulting in poor prognosis. Thus, global institutions have been working to develop mIDH2 inhibitors. SH1573 is a novel mIDH2 inhibitor that we independently designed and synthesised. We have conducted a comprehensive study on its pharmacodynamics, pharmacokinetics and safety. First, SH1573 exhibited a strong selective inhibition of mIDH2 R140Q protein, which could effectively reduce the production of 2-HG in cell lines, serum and tumors of an animal model. It could also promote the differentiation of mutant AML cell lines and granulocytes in PDX models. Then, it was confirmed that SH1573 possessed characteristics of high bioavailability, good metabolic stability and wide tissue distribution. Finally, toxicological data showed that SH1573 had no effects on the respiratory system, cardiovascular system and nervous system, and was genetically safe. This research successfully promoted the approval of SH1573 for clinical trials (CTR20200247). All experiments demonstrated that, as a potential drug against mIDH2 R140Q acute myeloid leukaemia, SH1573 was effective and safe.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
SH1573 SH 1573|SH-1573 IDH2 Inhibitor 5 SH1573 inhibits mutant forms of IDH2, potentially resulting in increased tumor cell differentiation (PMID: 34221866).
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
IDH2 R140Q hematologic cancer predicted - sensitive SH1573 Preclinical - Cell culture Actionable In a preclinical study, SH1573 treatment decreased 2-HG levels and increased differentiation of a tumor cell line expressing IDH2 R140Q in culture (PMID: 34221866). 34221866