| 规格 | 价格 | |
|---|---|---|
| 500mg | ||
| 1g | ||
| Other Sizes |
| 靶点 |
CRF1 receptor
|
|---|---|
| 体内研究 (In Vivo) |
背景: 克里奈色芬(Crinecerfont)是一种促肾上腺皮质激素释放因子1型受体拮抗剂。已有研究显示,该药物能降低因21-羟化酶缺乏症(21OHD)引起的先天性肾上腺皮质增生症成年患者体内升高的肾上腺雄激素及其前体水平。21OHD是一种罕见的常染色体隐性遗传病,其特征为皮质醇缺乏以及因促肾上腺皮质激素升高导致的雄激素过量。
目的: 评估克里奈色芬在21OHD CAH青少年患者中的安全性、耐受性和有效性。
方法: 这是一项在美国4个中心开展的非盲、二期临床研究(试验注册号:NCT04045145)。研究对象为14至17岁的男性和女性,患有典型的21OHD CAH。患者每日口服克里奈色芬两次(每次50毫克),随早晚两餐服用,连续用药14天。主要观察指标为从基线至第14天循环血中促肾上腺皮质激素、17-羟孕酮、雄烯二酮和睾酮浓度的变化。
结果: 共有8名参与者(3名男性,5名女性)入组;中位年龄为15岁,88%为白种人/白人。服用克里奈色芬14天后,从基线至第14天的中位百分比降幅分别为:促肾上腺皮质激素降低57%;17-羟孕酮降低69%;雄烯二酮降低58%。在女性参与者中,60%(3/5)的患者睾酮水平较基线下降≥50%。
结论: 患有典型21OHD CAH的青少年在口服克里奈色芬14天后,其肾上腺雄激素和雄激素前体水平显著降低。这些结果与一项针对成年典型21OHD CAH患者的克里奈色芬研究结果一致。 [1]
|
| 药代性质 (ADME/PK) |
Absorption
In adult patients at steady-state, the AUC0-24h and Cmax of crinecerfont were 72846 ng*h/mL and 4231 ng/mL, respectively. In pediatric patients at steady-state, the AUC0-24h ranged from 47062 to 74693 ng*h/mL and the Cmax ranged from 2887 to 4555 ng/mL, depending on the administered dose. The median time to Cmax (i.e. Tmax) is four hours. Route of Elimination Following a single oral 100 mg dose of radiolabeled crinecerfont, approximately 47.3% of the dose was recovered in feces (2.7% as unchanged parent drug) and 2% in urine (undetectable levels of unchanged parent drug). Volume of Distribution The mean apparent volume of distribution of crinecerfont in adults is 852 liters. Clearance The apparent clearance of crinecerfont is 3.5 L/h. Protein Binding Crinecerfont is highly (≥99.9%) protein bound in plasma. Metabolism / Metabolites _In vitro_, crinecerfont is primarily metabolized by CYP3A4 and to a lesser extent CYP2B6. Additionally, CYP2C8 and CYP2C19 may also have minor contributions to crinecerfont metabolism. Biological Half-Life The effective half-life of crinecerfont is approximately 14 hours. |
| 毒性/毒理 (Toxicokinetics/TK) |
Hepatotoxicity
In registration clinical trials, liver test abnormalities were infrequent during crinecerfont therapy and no more common than with placebo. There were no instances of ALT or AST elevations above 3 times the upper limit of normal (ULN) and no cases of liver injury with jaundice or symptoms. Clinical experience with crinecerfont therapy has been limited, but there have no published reports of clinical apparent liver injury with its use. Likelihood score: E (unlikely cause of clinically apparent liver injury). Effects During Pregnancy and Lactation ◉ Summary of Use during Lactation No information is available on the use of crinecerfont during breastfeeding. Because crinecerfont is more than 99% bound to plasma proteins, amounts in milk are likely to be low. If a mother requires crinecerfont, it is not a reason to discontinue breastfeeding. Breastfed infants should be monitored for signs of adrenal insufficiency such as weakness, decreased feeding and weight loss. ◉ Effects in Breastfed Infants Relevant published information was not found as of the revision date. ◉ Effects on Lactation and Breastmilk Relevant published information was not found as of the revision date. |
| 参考文献 |
| 分子式 |
C27H28CLFN2OS
|
|---|---|
| 分子量 |
483.04
|
| 精确质量 |
483.04
|
| 元素分析 |
C, 67.14; H, 5.84; Cl, 7.34; F, 3.93; N, 5.80; O, 3.31; S, 6.64
|
| CAS号 |
2649012-21-3
|
| 相关CAS号 |
321839-75-2; 752253-39-7
|
| 外观&性状 |
Typically exists as solids at room temperature
|
| LogP |
8
|
| tPSA |
53.6 Ų
|
| SMILES |
S1C(C)=C(C2=CC(C)=C(OC)C=C2Cl)N=C1N([C@@H](C1=CC=C(C)C(F)=C1)CC1CC1)CC#C
|
| InChi Key |
IEAKXXNRGSLYTQ-XMMPIXPASA-N
|
| InChi Code |
InChI=1S/C27H28ClFN2OS/c1-6-11-31(24(13-19-8-9-19)20-10-7-16(2)23(29)14-20)27-30-26(18(4)33-27)21-12-17(3)25(32-5)15-22(21)28/h1,7,10,12,14-15,19,24H,8-9,11,13H2,2-5H3/t24-/m1/s1
|
| 化学名 |
4-(2-chloro-4-methoxy-5-methylphenyl)-N-[(1R)-2-cyclopropyl-1-(3-fluoro-4-methylphenyl)ethyl]-5-methyl-N-prop-2-ynyl-1,3-thiazol-2-amine
|
| 别名 |
(R)-SSR-125543;
2649012-21-3; (R)-Crinecerfont; 4-(2-chloro-4-methoxy-5-methylphenyl)-N-[(1A)-2-cyclopropyl-1-(3-fluoro-4-methylphenyl)ethyl]-5-methyl-N-(2-propyn-1-yl)-2-thiazolamine; orb1689817; SCHEMBL23458452;
|
| HS Tariff Code |
2934.99.9001
|
| 存储方式 |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
| 运输条件 |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
|
| 溶解度 (体外实验) |
May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples
|
|---|---|
| 溶解度 (体内实验) |
注意: 如下所列的是一些常用的体内动物实验溶解配方,主要用于溶解难溶或不溶于水的产品(水溶度<1 mg/mL)。 建议您先取少量样品进行尝试,如该配方可行,再根据实验需求增加样品量。
注射用配方
注射用配方1: DMSO : Tween 80: Saline = 10 : 5 : 85 (如: 100 μL DMSO → 50 μL Tween 80 → 850 μL Saline)(IP/IV/IM/SC等) *生理盐水/Saline的制备:将0.9g氯化钠/NaCl溶解在100 mL ddH ₂ O中,得到澄清溶液。 注射用配方 2: DMSO : PEG300 :Tween 80 : Saline = 10 : 40 : 5 : 45 (如: 100 μL DMSO → 400 μL PEG300 → 50 μL Tween 80 → 450 μL Saline) 注射用配方 3: DMSO : Corn oil = 10 : 90 (如: 100 μL DMSO → 900 μL Corn oil) 示例: 以注射用配方 3 (DMSO : Corn oil = 10 : 90) 为例说明, 如果要配制 1 mL 2.5 mg/mL的工作液, 您可以取 100 μL 25 mg/mL 澄清的 DMSO 储备液,加到 900 μL Corn oil/玉米油中, 混合均匀。 View More
注射用配方 4: DMSO : 20% SBE-β-CD in Saline = 10 : 90 [如:100 μL DMSO → 900 μL (20% SBE-β-CD in Saline)] 口服配方
口服配方 1: 悬浮于0.5% CMC Na (羧甲基纤维素钠) 口服配方 2: 悬浮于0.5% Carboxymethyl cellulose (羧甲基纤维素) 示例: 以口服配方 1 (悬浮于 0.5% CMC Na)为例说明, 如果要配制 100 mL 2.5 mg/mL 的工作液, 您可以先取0.5g CMC Na并将其溶解于100mL ddH2O中,得到0.5%CMC-Na澄清溶液;然后将250 mg待测化合物加到100 mL前述 0.5%CMC Na溶液中,得到悬浮液。 View More
口服配方 3: 溶解于 PEG400 (聚乙二醇400) 请根据您的实验动物和给药方式选择适当的溶解配方/方案: 1、请先配制澄清的储备液(如:用DMSO配置50 或 100 mg/mL母液(储备液)); 2、取适量母液,按从左到右的顺序依次添加助溶剂,澄清后再加入下一助溶剂。以 下列配方为例说明 (注意此配方只用于说明,并不一定代表此产品 的实际溶解配方): 10% DMSO → 40% PEG300 → 5% Tween-80 → 45% ddH2O (或 saline); 假设最终工作液的体积为 1 mL, 浓度为5 mg/mL: 取 100 μL 50 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀/澄清;向上述体系中加入50 μL Tween-80,混合均匀/澄清;然后继续加入450 μL ddH2O (或 saline)定容至 1 mL; 3、溶剂前显示的百分比是指该溶剂在最终溶液/工作液中的体积所占比例; 4、 如产品在配制过程中出现沉淀/析出,可通过加热(≤50℃)或超声的方式助溶; 5、为保证最佳实验结果,工作液请现配现用! 6、如不确定怎么将母液配置成体内动物实验的工作液,请查看说明书或联系我们; 7、 以上所有助溶剂都可在 Invivochem.cn网站购买。 |
| 制备储备液 | 1 mg | 5 mg | 10 mg | |
| 1 mM | 2.0702 mL | 10.3511 mL | 20.7022 mL | |
| 5 mM | 0.4140 mL | 2.0702 mL | 4.1404 mL | |
| 10 mM | 0.2070 mL | 1.0351 mL | 2.0702 mL |
1、根据实验需要选择合适的溶剂配制储备液 (母液):对于大多数产品,InvivoChem推荐用DMSO配置母液 (比如:5、10、20mM或者10、20、50 mg/mL浓度),个别水溶性高的产品可直接溶于水。产品在DMSO 、水或其他溶剂中的具体溶解度详见上”溶解度 (体外)”部分;
2、如果您找不到您想要的溶解度信息,或者很难将产品溶解在溶液中,请联系我们;
3、建议使用下列计算器进行相关计算(摩尔浓度计算器、稀释计算器、分子量计算器、重组计算器等);
4、母液配好之后,将其分装到常规用量,并储存在-20°C或-80°C,尽量减少反复冻融循环。
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)。如该浓度超过该批次药物DMSO溶解度,请首先与我们联系。
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 ddH2O,混匀澄清。
(1) 请确保溶液澄清之后,再加入下一种溶剂 (助溶剂) 。可利用涡旋、超声或水浴加热等方法助溶;
(2) 一定要按顺序加入溶剂 (助溶剂) 。