LOXO-101 (Larotrectinib) sulfate
(Synonyms: (3S)-N-[5-[(2R)-2-(2,5-二氟苯基)-1-吡咯烷基]吡唑并[1,5-A]嘧啶-3-基]-3-羟基-1-吡咯烷甲酰胺硫酸盐,LOXO-101 sulfate; ARRY-470 sulfate) 目录号 : GC15282
A pan-Trk inhibitor
Cas No.:1223405-08-0
Sample solution is provided at 25 µL, 10mM.
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IC50: low nanomolar range for inhibition of all TRK family members
LOXO-101 is a tropomyosin receptor kinases (TRK) inhibitor.
The TRK family of neurotrophin receptors and their neurotrophin ligands regulate neuron growth, differentiation and survival.
In vitro: In previous study, LOXO-101 was evaluated for off-target kinase enzyme inhibition against a panel of non-TRK kinases at a concentration of 1,000 nM and ATP concentrations around the Km. Results showed that LOXO-101 had greater than 50% inhibition for only one non-TRK kinase, which was TNK2 with IC50 of 576 nM. Moreover, there were neither relevant hERG inhibition nor prolonged QT observation [1].
In vivo: Animal study found that LOXO-101 was able to inhibit in vivo tumor growth. Athymic nude mice injected with KM12 cells were orally treated with LOXO-101 daily for 2 weeks, and dose-dependent tumor inhibition was observed, indicating the ability of LOXO-101 to inhibit in-vivo tumor growth [1].
Clinical trial: A multicenter phase I dose-escalation study in patients with advanced solid tumors (ClinicalTrials.gov no. NCT02122913) was conducted in 2014 to evaluate the safety and PK of LOXO-101. Patients are dosed once or twice daily for 28 days of continuous dosing in escalating cohorts. Preliminary PK and safety data indicate that the free plasma levels of LOXO-101 are at biologically relevant concentrations to inhibit TRK oncogenes. In this study, the first and only patient showed TRK fusion and the rapid clinical tumor regression seen with the treatment of LOXO-101 [1].
Reference:
[1] Doebele RC et al. An Oncogenic NTRK Fusion in a Patient with Soft-Tissue Sarcoma with Response to the Tropomyosin-Related Kinase Inhibitor LOXO-101. Cancer Discov.2015 Oct;5(10):1049-57.
Animal experiment: | Mice[4]Athymic nude mice are used throughout the study. 5×105 KM12 cells are injected subcutaneously into the dorsal flank area of the mice. Tumor volume is monitored by direct measurement with calipers and calculated by the formula: length × (width2)/2. Following the establishment of tumor and when the tumor size is between 150-200 mm2, mice are randomly selected to receive diluent, 60 mg/kg/dose or 200 mg/kg/dose of Larotrectinib (LOXO-101). Larotrectinib (LOXO-101) is administered by oral gavage once daily for 14 days. After the last dose, tissue and blood are collected at 3, 6 and 24 hours post-treatment[4]. |
References: [1]. Karyn Bouhana, et al. LOXO-101, a pan TRK inhibitor, For The Treatment Of TRK-driven Cancers. | |
| Cas No. | 1223405-08-0 | SDF | |
| 别名 | (3S)-N-[5-[(2R)-2-(2,5-二氟苯基)-1-吡咯烷基]吡唑并[1,5-A]嘧啶-3-基]-3-羟基-1-吡咯烷甲酰胺硫酸盐,LOXO-101 sulfate; ARRY-470 sulfate | ||
| 化学名 | (S)-N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide sulfate | ||
| Canonical SMILES | O=S(O)(O)=O.O=C(N1C[C@@H](O)CC1)NC2=C3N=C(N4[C@@H](C5=CC(F)=CC=C5F)CCC4)C=CN3N=C2 | ||
| 分子式 | C21H24F2N6O6S | 分子量 | 526.51 |
| 溶解度 | DMSO : 100mg/mL | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.8993 mL | 9.4965 mL | 18.993 mL |
| 5 mM | 0.3799 mL | 1.8993 mL | 3.7986 mL |
| 10 mM | 0.1899 mL | 0.9496 mL | 1.8993 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Quality Control & SDS
- View current batch:
- Purity: >99.50%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet