Izencitinib
(Synonyms: TD-1473; JNJ-8398) 目录号 : GC62313
Izencitinib (TD-1473) 是具有口服活性的、非选择性的、肠道限定的 JAK 抑制剂。Izencitinib (TD-1473) 可用于溃疡性结肠炎研究。
Cas No.:2051918-33-1
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >99.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Izencitinib (TD-1473) is an orally active, non-selective and gut-restricted JAK inhibitor. Izencitinib (TD-1473) can be used in the study for ulcerative colitis[1].
Izencitinib (TD-1473) inhibits cytokine-evoked STAT phosphorylation in human peripheral blood mononuclear cells (PBMCs) and in a human colonic epithelial cell line (pIC50 ≥ 6.7)[1].Izencitinib (TD-1473) is a potent JAK1, JAK2, JAK3, and TYK2 inhibitor at the human JAK kinase domains (pKi values of 10.0, 10.0, 8.8, and 9.5, respectively)[1].
Izencitinib (TD-1473, 1 mg/kg BID) preserves body weight and reduced occult blood scores in a mouse oxazolone colitis model[1].
[1]. Kevin S Currie, et al. Small-molecule agents for the treatment of inflammatory bowel disease. Bioorg Med Chem Lett. 2019 Aug 15;29(16):2034-2041.
[2]. William J Sandborn, et al. Development of Gut-Selective Pan-Janus Kinase Inhibitor TD-1473 for Ulcerative Colitis: A Translational Medicine Programme. J Crohns Colitis. 2020 Sep 16;14(9):1202-1213.
[3]. D. Beattie, et al. TD-1473, a novel, potent, and orally administered, GI-targeted, pan-Janus kinase (JAK) inhibitor. Journal of Crohn’s and Colitis, Volume 10, Issue suppl_1, March 2016, Page S123.
| Cas No. | 2051918-33-1 | SDF | |
| 别名 | TD-1473; JNJ-8398 | ||
| 分子式 | C22H26N8 | 分子量 | 402.5 |
| 溶解度 | DMSO : 50 mg/mL (124.22 mM; Need ultrasonic) | 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 | 2.4845 mL | 12.4224 mL | 24.8447 mL |
| 5 mM | 0.4969 mL | 2.4845 mL | 4.9689 mL |
| 10 mM | 0.2484 mL | 1.2422 mL | 2.4845 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。
Gut-Selective Design of Orally Administered Izencitinib (TD-1473) Limits Systemic Exposure and Effects of Janus Kinase Inhibition in Nonclinical Species
Toxicol Sci 2022 Mar 28;186(2):323-337.PMID:35134999DOI:10.1093/toxsci/kfac002.
Izencitinib (TD-1473), an oral, gut-selective pan-Janus kinase (JAK) inhibitor under investigation for treatment of inflammatory bowel diseases, was designed for optimal efficacy in the gastrointestinal tract while minimizing systemic exposures and JAK-related safety findings. The nonclinical safety of Izencitinib was evaluated in rat and dog repeat-dose and rat and rabbit reproductive and developmental toxicity studies. Systemic exposures were compared with JAK inhibitory potency to determine effects at or above pharmacologic plasma concentrations (≥1× plasma average plasma concentration [Cave]:JAK 50% inhibitory concentration [IC50] ratio). In rats and dogs, 1000 and 30 mg/kg/day Izencitinib, respectively, produced minimal systemic findings (ie, red/white cell changes) and low systemic concentrations (approximately 1× plasma Cave:JAK IC50 ratio) with an 8× nonclinical:clinical systemic area under the curve (AUC) margin compared with exposures at the highest clinically tested dose (300 mg, quaque die, once daily, phase 1 study in healthy volunteers). In dogs, it was possible to attain sufficient systemic exposures to result in immunosuppression characteristic of systemic JAK inhibition, but at high AUC margins (43×) compared with systemic exposures observed at the highest tested dose in humans. No adverse findings were observed in the gastrointestinal tract or systemic tissues. Izencitinib did not affect male or female fertility. Izencitinib did not affect embryonic development in rats and rabbits as commonly reported with systemic JAK inhibition, consistent with low maternal systemic concentrations (2-6× plasma Cave:JAK IC50 ratio, 10-33× nonclinical:clinical AUC margin) and negligible fetal exposures. In conclusion, the Izencitinib gut-selective approach resulted in minimal systemic findings in nonclinical species at pharmacologic, clinically relevant systemic exposures, highlighting the impact of organ-selectivity in reducing systemic safety findings.