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TPX-0046

目录号 : GC26001

TPX-0046 is a novel RET/SRC inhibitor with a mean IC50 of 17 nM for RETG810R in Ba/F3 cell proliferation assay

TPX-0046 Chemical Structure

Cas No.:2359650-19-2

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1mg
¥1,370.00
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5mg
¥4,111.00
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产品描述

TPX-0046 is a novel RET/SRC inhibitor with a mean IC50 of 17 nM for RETG810R in Ba/F3 cell proliferation assay.

TPX-0046 is a new type of RET/SRC inhibitor and potent against a range of RET fusions and mutations including solvent front mutations (SFMs)-mediated resistance. In Ba/F3 RET engineered cells with SFMs proliferation test, the average IC50 is 1-17 nM.[2]

TPX-0046 demonstrates marked anti-tumor efficacy in vivo in multiple RET-driven cancer cell-derived and patient-derived xenograft tumor models.[2]

[1] Noura J Choudhury, Alexander Drilon. Transl Lung Cancer Res. 2020 Dec;9(6):2571-2580. [2] Alexander E Drilon, et al. Journal of Clinical. 2020 May; 38(15_suppl): 3616.

Chemical Properties

Cas No. 2359650-19-2 SDF Download SDF
分子式 C21H21FN6O3 分子量 424.43
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1 mg 5 mg 10 mg
1 mM 2.3561 mL 11.7805 mL 23.561 mL
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10 mM 0.2356 mL 1.1781 mL 2.3561 mL
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Research Update

The return of RET GateKeeper mutations? an in-silico exploratory analysis of potential resistance mechanisms to novel RET macrocyclic inhibitor TPX-0046

Invest New Drugs 2022 Oct;40(5):1133-1136.PMID:35612671DOI:10.1007/s10637-022-01259-x.

TPX-0046 is designed to overcome resistance to FDA approved RET inhibitors Selpercatinib and Pralsetinib. Early prediction of resistance mechanisms to investigational drugs may facilitate subsequent drug and trial designs. This study aims to predict potential mutations inducing resistance to TPX-0046. We conducted an in-silico analysis of TPX-0046 macrocyclic structure and predicted the binding mode on RET. We used as reference literary examples of resistance mechanisms to other macrocyclic inhibitors (Lorlatinib on ALK/ROS1) to construct RET secondary resistance mutations. We conducted docking simulations to evaluate impact of mutations on TPX-0046 binding. TPX-0046 binding mode on RET appears to not be influenced by Solventfront G810X mutation presence. Bulky Gatekeeper V804X mutations affect predicted TPX-0046 binding mode. Mutations in Beta 7 strand region L881F and xDFG S891L impair TPX-0046 docking. Our findings suggest that development of second generation RET inhibitors focused mainly on Solventfront G810X mutations granting resistance to selective RET inhibitors Selpercatinib and Pralsetinib. If these findings are confirmed by identification of Gatekeeper V804X mutations in patients progressing to TPX-0046, explanation of acquired resistance and loss of benefit will be easier These findings might accelerate development of third generation RET inhibitors, as well as clinical trial design in precision oncology settings.

Precious Gene: The Application of RET-Altered Inhibitors

Molecules 2022 Dec 13;27(24):8839.PMID:36557971DOI:10.3390/molecules27248839.

The well-known proto-oncogene rearrangement during transfection (RET), also known as ret proto-oncogene Homo sapiens (human), is a rare gene that is involved in the physiological development of some organ systems and can activate various cancers, such as non-small cell lung cancer, thyroid cancer, and papillary thyroid cancer. In the past few years, cancers with RET alterations have been treated with multikinase inhibitors (MKIs). However, because of off-target effects, these MKIs have developed drug resistance and some unacceptable adverse effects. Therefore, these MKIs are limited in their clinical application. Thus, the novel highly potent and RET-specific inhibitors selpercatinib and pralsetinib have been accelerated for approval by the Food and Drug Administration (FDA), and clinical trials of TPX-0046 and zetletinib are underway. It is well tolerated and a potential therapeutic for RET-altered cancers. Thus, we will focus on current state-of-the-art therapeutics with these novel RET inhibitors and show their efficacy and safety in therapy.