Montelukast (MK476; Singulair)

别名: MK-476; MK 476; MK0476; Brondilat; Aerokast; 142522-28-9; UNII-MHM278SD3E; MHM278SD3E; trade names Singulair; Monteflo; Lukotas; Lumona 孟鲁司特;(R-(E))-1-(((1-(3-(2-(7-氯-2-喹啉基)乙烯基)苯基)-3-(2-(1-羟基-1-甲基乙基)苯基)丙基)硫)甲基)环丙基乙酸;[R-(E)]-1-[[[1-[3-[2-(7-氯-2-喹啉基)乙烯基]苯基]-3-[2-(1-羟基-1-甲基乙基)苯基]丙基]硫]甲基]环丙烷乙酸; 莫特司特; 孟鲁司特钠;孟鲁司特杂质; 孟鲁司特,用于系统适用性;孟鲁司特酸
目录号: V6904 纯度: ≥98%
Montelukast(也称为 MK-476;MK 476;MK0476;商品名 Singulair;Monteflo;Lukotas;Lumona)是一种新型、有效、选择性 CysLT1(白三烯受体)受体拮抗剂,用于哮喘的维持治疗和缓解季节性症状。过敏。
Montelukast (MK476; Singulair) CAS号: 158966-92-8
产品类别: New1
产品仅用于科学研究,不针对患者销售
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Other Forms of Montelukast (MK476; Singulair):

  • 孟鲁司特钠
  • 孟鲁司特二环己胺
  • Montelukast-d6 sodium (MK0476-d6)
  • Montelukast-d6 (MK0476-d6 (free acid))
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InvivoChem产品被CNS等顶刊论文引用
产品描述
孟鲁司特(也称为 MK-476;MK 476;MK0476;商品名 Singulair;Monteflo;Lukotas;Lumona)是一种新型、有效、选择性 CysLT1(白三烯受体)受体拮抗剂,用于维持治疗哮喘并缓解哮喘症状。季节性过敏的症状。孟鲁司特通过与肺部和支气管中的半胱氨酰白三烯受体 CysLT1 结合,阻断白三烯 D4(以及二级配体 LTC4 和 LTE4)对其的作用。这减少了白三烯引起的支气管收缩,并减少炎症。
生物活性&实验参考方法
靶点
CysLT1/cysteinyl leukotriene receptor 1
体外研究 (In Vitro)
孟鲁司特(5 μM;1 小时)可防止对乙酰氨基酚 (APAP) 引起的细胞损伤 [1]。孟鲁司特 (0.01-10 μM) 给药 30 分钟可抑制 5-oxo-ETE 产生的细胞迁移,并改变纤溶酶-纤溶酶原系统的激活 [3]。 10 μM 孟鲁司特持续 18 小时会改变 MMP-9 活性 [3]。
体内研究 (In Vivo)
孟鲁司特(3 mg/kg;口服)可保护小鼠免受 APAP 引起的肝毒性 [1]。当通过微渗透泵给药时,孟鲁司特 (1 mg/kg) 通过 CysLT1 受体抑制半胱氨酰白三烯 (LT) 的产生,并减轻 OVA 治疗小鼠气道重塑的改变。 C4、D4和E4的角色[2]。使用微渗透泵给予 1 mg/kg 孟鲁司特,可以降低用 OVA 治疗的小鼠 BAL 液中 IL-4 和 IL-13 水平的升高 [2]。
酶活实验
孟鲁司特和MK-0591降低了5-氧代-ETE促进的嗜酸性粒细胞迁移,而LTD(4)未能诱导嗜酸性粒细胞核迁移。然而,LTD(4)显著提高了用次优浓度的5-氧代-ETE获得的迁移速率,并部分逆转了用MK-0591获得的抑制作用。孟鲁司特显著降低了用5-氧代-ETE获得的嗜酸性粒细胞将纤溶酶原活化为纤溶酶的最大速率。5-Oxo-ETE增加了表达尿激酶纤溶酶原激活物受体的嗜酸性粒细胞的数量,并刺激了MMP-9的分泌。孟鲁司特,但MK-0591和LTD(4)均未降低尿激酶纤溶酶原激活剂受体的表达和MMP-9的分泌,并增加尿激酶纤溶酶原活化剂的总细胞活性和纤溶酶原激活物抑制剂2mRNA的表达[3]。
细胞实验
细胞迁移测定 [3]
细胞类型: 嗜酸性粒细胞
测试浓度: 0.01-10 μM
孵育时间: 30 分钟
实验结果:减少 5-oxo-ETE 诱导的细胞迁移。

蛋白质印迹分析[3]
细胞类型: 嗜酸性粒细胞
测试浓度: 10 μM
孵育时间: 18 小时
实验结果: 5-oxo-ETE 促进的 MMP-9 分泌减少。
动物实验
动物/疾病模型: C57BL/6J 小鼠(8 周龄;22-25 克)诱导急性肝损伤[1]
剂量: 3 mg/kg
给药途径: 口服(po),在给予生理盐水或对乙酰氨基酚(APAP)1 小时后
实验结果: 血清中丙氨酸氨基转移酶(ALT)和天冬氨酸氨基转移酶(AST)水平适中,并减轻肝损伤。
对乙酰氨基酚(APAP)诱导急性肝损伤模型:** 8周龄C57BL/6J雄性小鼠(22-25 g)在给予APAP前禁食16小时。通过单次灌胃给予APAP(200 mg/kg)诱导急性肝损伤。在治疗实验中,将孟鲁司特悬浮于0.5%羧甲基纤维素溶液中,配制成3 mg/kg的剂量。APAP给药1小时后,小鼠经口灌胃给予100 µL孟鲁司特悬浮液或溶剂对照。APAP给药12小时后,用二氧化碳窒息法处死小鼠。通过心脏穿刺采集血液分离血清,并收集肝组织进行组织学和生化分析。
药代性质 (ADME/PK)
吸收、分布和排泄
据观察,孟鲁司特口服后吸收迅速。该药物的口服生物利用度为64%。此外,似乎早上正常进餐或晚上摄入高脂肪零食并不影响孟鲁司特的吸收。
据报道,孟鲁司特及其代谢物几乎完全经胆汁和粪便排泄。
孟鲁司特的稳态分布容积平均为 8 至 11 升。
在健康成人中观察到的孟鲁司特血浆清除率平均为 45 mL/min。
孟鲁司特可从胃肠道迅速吸收,空腹口服单片 10 mg 薄膜衣片(成人)、5 mg 咀嚼片(成人)或 4 mg 咀嚼片(2-5 岁儿童)后,分别在 3-4 小时、2-2.5 小时或 2 小时内达到血浆峰浓度。早晨服用4毫克口服颗粒剂时,摄入高脂餐对孟鲁司特的AUC无影响;然而,达峰时间从2.3小时延长至6.4小时,峰浓度降低了35%。孟鲁司特的吸收迅速。10毫克片剂的平均口服生物利用度为64%。早晨的标准餐不影响其生物利用度。对于 5 毫克咀嚼片:空腹状态下的平均口服生物利用度为 73%,而早晨与标准餐同服时为 63%。
在空腹的青年成人中,每日口服 10 毫克孟鲁司特,连续 7 天后,血浆峰浓度在第 1 天平均为 541 ng/mL,在第 7 天平均为 602.8 ng/mL。第 3-7 天的谷浓度基本保持稳定,范围为 18-24 ng/mL。本研究中,稳态血浆浓度-时间曲线下面积 (AUC) 值比单次给药后的值高约 14-15%,且在 2 天内即可达到。
孟鲁司特的药代动力学在剂量高达 50 mg 时接近线性。
有关孟鲁司特(共 15 项)的更多吸收、分布和排泄(完整)数据,请访问 HSDB 记录页面。
代谢/代谢物
已确定孟鲁司特代谢活跃,通常由细胞色素 P450 3A4、2C8 和 2C9 同工酶代谢。特别是,CYP2C8 酶似乎在药物代谢中起着重要作用。然而,在治疗剂量下,成人和儿童患者达到稳态时,血浆中孟鲁司特代谢物的浓度均无法检测到。
生物转化主要在肝脏进行,涉及细胞色素P450 3A4和2C9。
孟鲁司特的代谢途径尚未完全明确,但该药物在胃肠道和/或肝脏中广泛代谢,并经胆汁排泄。已发现多种代谢途径,包括酰基葡萄糖醛酸化和由多种细胞色素P-450 (CYP) 同工酶催化的氧化反应。体外研究表明,微粒体P-450同工酶CYP3A4是21-羟基代谢物(M5)和亚砜代谢物(M2)形成的主要酶,而CYP2C9是36-羟基代谢物(M6)形成的主要同工酶。其他已鉴定的代谢物包括酰基葡萄糖醛酸苷(M1)和25-羟基(酚类,M3)类似物。口服54.8 mg放射性标记的孟鲁司特后,药物代谢物占循环放射性的不到2%。在放射性标记研究中,已在血浆中鉴定出的孟鲁司特代谢物包括 21-羟基(苄酸的非对映异构体,M5a 和 M5b)代谢物和 36-羟基(甲醇的非对映异构体,M6a 和 M6b)代谢物。口服治疗剂量孟鲁司特后,成人和儿童体内稳态血浆代谢物浓度均低于检测限。
孟鲁司特已知的代谢物包括孟鲁司特亚砜、孟鲁司特1,2-二醇、21-羟基孟鲁司特和21(S)-羟基孟鲁司特。
生物半衰期
研究表明,健康年轻成人的孟鲁司特平均血浆半衰期为2.7至5.5小时。
19-48岁成人的孟鲁司特平均血浆消除半衰期为2.7-5.5小时,平均血浆清除率为45 mL/分钟。6-14岁儿童的血浆消除半衰期为3.4-4.2小时。有限的数据表明,孟鲁司特在老年人和轻度至中度肝功能损害患者中的血浆消除半衰期略有延长,但无需调整剂量。据报道,65-73岁老年人和轻度至中度肝功能损害患者的血浆消除半衰期分别为6.6小时和7.4小时。
毒性/毒理 (Toxicokinetics/TK)
相互作用
同时使用苯巴比妥会导致孟鲁司特的药时曲线下面积[AUC]显著降低(约40%),并诱导肝脏代谢……
……本研究旨在评估临床常用剂量水平的孟鲁司特是否会干扰华法林的抗凝作用。在一项两周期、双盲、随机交叉研究中,12名健康男性受试者在为期12天的孟鲁司特治疗的第7天单次口服30 mg华法林,孟鲁司特每日口服10 mg,或安慰剂。孟鲁司特对R-或S-华法林的血浆浓度-时间曲线下面积和血浆峰浓度均无显著影响。然而,在孟鲁司特存在的情况下,观察到华法林两种对映异构体的达峰时间以及效力较低的R-华法林的消除半衰期均有轻微但具有统计学意义的缩短。这些变化被认为不具有临床意义。孟鲁司特对华法林的抗凝作用无显著影响,这通过凝血酶原时间国际标准化比值(INR)(AUC0-144和INR最大值)评估得出。本研究结果表明,对于需要同时服用这两种药物的患者,不太可能发生具有临床意义的药物相互作用。
在三项独立的临床试验中,研究了半胱氨酰白三烯受体拮抗剂孟鲁司特(MK-0476)对单剂量茶碱血浆浓度的影响。孟鲁司特的评估剂量分别为每日一次10 mg(临床剂量)、每日一次200 mg和每日三次600 mg(每次200 mg)。在临床剂量下,孟鲁司特对单次给药茶碱的血浆浓度没有产生具有临床意义的改变。茶碱血浆浓度-时间曲线下面积(AUC0-∞)的几何平均比值(0.92)和最大血浆浓度(Cmax)的几何平均比值(1.04)均在预先设定的、普遍接受的生物等效性范围(0.80和1.25)内。孟鲁司特在200 mg/d(口服和静脉注射)剂量下,分别使茶碱的Cmax降低了12%和10%,AUC0-∞降低了43%和44%,消除半衰期降低了44%和39%;在600 mg/d剂量下,孟鲁司特使茶碱的Cmax降低了25%,AUC0-∞降低了66%,消除半衰期降低了63%。这些结果表明,临床剂量的孟鲁司特不会对茶碱的药代动力学产生具有临床意义的影响,但当剂量提高20至60倍时,孟鲁司特会显著降低茶碱的药代动力学参数;这提示存在明显的剂量依赖性。
这位45岁的肥胖女性入院时,转氨酶水平升高,凝血酶原时间延长,提示肝实质萎缩;治疗失败导致其死亡。已排除自身免疫性疾病、对乙酰氨基酚的使用、酒精中毒和威尔逊病等病因。由于患有慢性哮喘,她在本次就诊前已服用白三烯受体拮抗剂(孟鲁司特)5年;发病前一周,她曾服用两种膳食补充剂控制体重,其中一种含有藤黄果,而藤黄果可能是近期美国两例肝炎病例的病因之一;此外,两种配方均含有干扰细胞色素功能的柑橘衍生物。作者推测添加剂的摄入与致命性肝炎之间存在因果关系,并设想添加剂与孟鲁司特之间存在协同作用,孟鲁司特本身已被充分研究为一种肝毒性药物。尽管这种说法带有推测性质,但研究人员认为,这一警告可能有助于引起人们对目前食品添加剂不受控制地增加的关注。
……本病例描述了一名哮喘患者,在连续两次接触孟鲁司特后出现严重的阻塞性症状和进行性心力衰竭。由于该患者血液嗜酸性粒细胞计数显著升高,胸部X光片显示弥漫性浸润,并有心肌炎体征,因此怀疑其患有丘-施综合征(CSS)。该疾病通过开胸肺活检得到证实。给予高剂量甲泼尼龙和环磷酰胺免疫抑制剂后,症状迅速改善。本病例值得关注,因为其病程发展强烈提示孟鲁司特在CSS的发生发展中起直接的病因作用。但其病理生理机制尚不清楚。
参考文献

[1]. Montelukast Prevents Mice Against Acetaminophen-Induced Liver Injury. Front Pharmacol. 2019 Sep 18; 10:1070.

[2]. A role for cysteinyl leukotrienes in airway remodeling in a mouse asthma model. Am J Respir Crit Care Med. 2002 Jan 1; 165(1): 108-16.

[3]. Montelukast regulates eosinophil protease activity through a leukotriene-independent mechanism. J Allergy Clin Immunol. 2006;118(1):113-119.

[4]. Montelukast in hospitalized patients diagnosed with COVID-19. J Asthma. 2022 Apr;59(4):780-786.

其他信息
治疗用途
抗哮喘药;白三烯拮抗剂
孟鲁司特适用于成人和12个月及以上儿童哮喘的预防和慢性治疗。/美国产品标签包含/
孟鲁司特适用于缓解成人和2岁及以上儿童季节性过敏性鼻炎的症状。/美国产品标签包含/
孟鲁司特不适用于治疗急性哮喘发作(包括哮喘持续状态)引起的支气管痉挛。/美国产品标签未包含/
药物警告
头痛是孟鲁司特最常见的不良反应,6岁及以上儿童、青少年和成人的发生率为18-19%。据报道,在接受孟鲁司特治疗的2-8岁哮喘儿童中,至少有2%出现头痛;在接受孟鲁司特治疗的15岁及以上哮喘成人和青少年中,至少有1%(且发生率高于安慰剂组)出现头痛。在接受孟鲁司特治疗的15岁及以上常年性过敏性鼻炎成人和青少年患者中,至少有1%出现鼻窦性头痛,且发生率高于安慰剂组。在临床研究中,约1.8-1.9%的15岁及以上患者在接受该药物治疗后出现头晕或乏力/疲劳。此外,还有报道称,该药物还可能导致梦境异常、幻觉、躁动(包括攻击性行为)、感觉异常/感觉减退、嗜睡、失眠、易怒或烦躁不安。癫痫发作的报告非常罕见。
15岁及以上接受孟鲁司特治疗的患者中,2.9%出现腹痛。该年龄组患者中,分别有2.1%、1.5%和1.7%报告出现消化不良、感染性胃肠炎和牙痛。6-14岁接受孟鲁司特治疗的儿童中,至少2%报告出现腹泻或恶心。2-5岁患有哮喘的儿童中,至少2%报告出现腹痛、腹泻和胃肠炎,且发生率高于安慰剂组。6-8岁患有哮喘的儿童中,至少2%报告出现胃肠炎,且发生率高于安慰剂组。上市后监测数据显示,服用孟鲁司特治疗的患者还可能出现恶心、呕吐、消化不良、胰腺炎(罕见)和腹泻等不良反应。
在临床研究中,接受孟鲁司特治疗的患者出现一项或多项肝功能检查结果升高。在临床研究中,接受孟鲁司特治疗的15岁及以上哮喘患者中,分别有2.1%和1.6%出现血清ALT(SGPT)或AST(SGOT)浓度升高。在临床研究中,接受孟鲁司特治疗的15岁及以上常年性过敏性鼻炎成人和青少年患者中,至少有1%出现ALT升高,且发生率高于安慰剂组。尽管继续服用孟鲁司特,但实验室指标的变化仍恢复正常,或者并非直接由药物治疗引起。服用孟鲁司特的2-14岁儿童中曾有血清转氨酶(转氨酶)浓度升高的报道,但其发生率与服用安慰剂的儿童相似。上市后经验显示,孟鲁司特极少引起肝嗜酸性粒细胞浸润。上市后经验还显示,孟鲁司特也极少引起肝细胞损伤、胆汁淤积性肝炎或混合型肝损伤。这些患者大多存在混杂因素,例如同时服用其他药物或饮酒,或存在其他疾病(例如,其他类型的肝炎)。
服用孟鲁司特的15岁及以上成人和青少年中,皮疹发生率为1.6%。服用该药的2-5岁儿童中,至少有2%报告出现皮疹、湿疹、皮炎或荨麻疹。据报道,在接受孟鲁司特治疗的6-8岁哮喘患儿中,至少有2%出现特应性皮炎、水痘和皮肤感染,且发生率高于接受安慰剂的患儿。接受孟鲁司特治疗的患者曾报告出现超敏反应,包括过敏性休克、血管性水肿、瘙痒、荨麻疹,以及罕见的肝嗜酸性粒细胞浸润。
有关孟鲁司特(共17项)的更多药物警告(完整)数据,请访问HSDB记录页面。
药效学
孟鲁司特是一种白三烯受体拮抗剂,对半胱氨酰白三烯受体1型具有显著的亲和力和选择性,优于许多其他重要的气道受体,例如前列腺素受体、胆碱能受体或β-肾上腺素能受体。因此,即使剂量低至 5 mg,该药物也能显著阻断 LTD4 白三烯介导的支气管收缩。此外,一项安慰剂对照交叉研究(n=12)表明,孟鲁司特能够分别抑制抗原激发引起的早期和晚期支气管收缩达 75% 和 57%。尤其值得注意的是,已有文献记载,口服孟鲁司特后 2 小时内即可产生支气管扩张作用。这种作用还可以与同时使用 β 受体激动剂产生的支气管扩张作用叠加。然而,对 15 岁及以上成年人进行的临床研究表明,每日服用超过 10 mg 的孟鲁司特并不能获得额外的临床获益。此外,在针对6至14岁成人和儿童哮喘患者的临床试验中,研究还发现,在双盲治疗期间,与安慰剂相比,孟鲁司特可使外周血嗜酸性粒细胞平均水平较基线降低约13%至15%。同时,在15岁及以上患有季节性过敏性鼻炎的患者中,与安慰剂相比,使用孟鲁司特也使外周血嗜酸性粒细胞计数中位数降低了13%。
*注: 文献方法仅供参考, InvivoChem并未独立验证这些方法的准确性
化学信息 & 存储运输条件
分子式
C35H36CLNO3S
分子量
586.18
精确质量
585.21
元素分析
C, 71.72; H, 6.19; Cl, 6.05; N, 2.39; O, 8.19; S, 5.47
CAS号
158966-92-8
相关CAS号
Montelukast sodium;151767-02-1;Montelukast dicyclohexylamine;577953-88-9;Montelukast-d6;1093746-29-2
PubChem CID
5281040
外观&性状
Light yellow to yellow solid
密度
1.3±0.1 g/cm3
沸点
750.5±60.0 °C at 760 mmHg
闪点
407.7±32.9 °C
蒸汽压
0.0±2.6 mmHg at 25°C
折射率
1.678
LogP
7.8
tPSA
95.72
氢键供体(HBD)数目
2
氢键受体(HBA)数目
5
可旋转键数目(RBC)
12
重原子数目
41
分子复杂度/Complexity
891
定义原子立体中心数目
1
SMILES
CC(C)(C1=CC=CC=C1CC[C@H](C2=CC=CC(=C2)/C=C/C3=NC4=C(C=CC(=C4)Cl)C=C3)SCC5(CC5)CC(=O)O)O
InChi Key
UCHDWCPVSPXUMX-TZIWLTJVSA-N
InChi Code
InChI=1S/C35H36ClNO3S/c1-34(2,40)30-9-4-3-7-25(30)13-17-32(41-23-35(18-19-35)22-33(38)39)27-8-5-6-24(20-27)10-15-29-16-12-26-11-14-28(36)21-31(26)37-29/h3-12,14-16,20-21,32,40H,13,17-19,22-23H2,1-2H3,(H,38,39)/b15-10+/t32-/m1/s1
化学名
Cyclopropaneacetic acid, 1-((((1R)-1-(3-((1E)-2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)-
别名
MK-476; MK 476; MK0476; Brondilat; Aerokast; 142522-28-9; UNII-MHM278SD3E; MHM278SD3E; trade names Singulair; Monteflo; Lukotas; Lumona
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)
溶解度数据
溶解度 (体外实验)
DMSO : ~250 mg/mL (~426.49 mM)
溶解度 (体内实验)
配方 1 中的溶解度: 2.08 mg/mL (3.55 mM) in 10% DMSO + 40% PEG300 +5% Tween-80 + 45% Saline (这些助溶剂从左到右依次添加,逐一添加), 悬浮液;超声助溶。
例如,若需制备1 mL的工作液,可将100 μL 20.8 mg/mL澄清DMSO储备液加入400 μL PEG300中,混匀;然后向上述溶液中加入50 μL Tween-80+,混匀;加入450 μL生理盐水定容至1 mL。
*生理盐水的制备:将 0.9 g 氯化钠溶解在 100 mL ddH₂O中,得到澄清溶液。

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 1.7060 mL 8.5298 mL 17.0596 mL
5 mM 0.3412 mL 1.7060 mL 3.4119 mL
10 mM 0.1706 mL 0.8530 mL 1.7060 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。

计算器

摩尔浓度计算器可计算特定溶液所需的质量、体积/浓度,具体如下:

  • 计算制备已知体积和浓度的溶液所需的化合物的质量
  • 计算将已知质量的化合物溶解到所需浓度所需的溶液体积
  • 计算特定体积中已知质量的化合物产生的溶液的浓度
使用摩尔浓度计算器计算摩尔浓度的示例如下所示:
假如化合物的分子量为350.26 g/mol,在5mL DMSO中制备10mM储备液所需的化合物的质量是多少?
  • 在分子量(MW)框中输入350.26
  • 在“浓度”框中输入10,然后选择正确的单位(mM)
  • 在“体积”框中输入5,然后选择正确的单位(mL)
  • 单击“计算”按钮
  • 答案17.513 mg出现在“质量”框中。以类似的方式,您可以计算体积和浓度。

稀释计算器可计算如何稀释已知浓度的储备液。例如,可以输入C1、C2和V2来计算V1,具体如下:

制备25毫升25μM溶液需要多少体积的10 mM储备溶液?
使用方程式C1V1=C2V2,其中C1=10mM,C2=25μM,V2=25 ml,V1未知:
  • 在C1框中输入10,然后选择正确的单位(mM)
  • 在C2框中输入25,然后选择正确的单位(μM)
  • 在V2框中输入25,然后选择正确的单位(mL)
  • 单击“计算”按钮
  • 答案62.5μL(0.1 ml)出现在V1框中
g/mol

分子量计算器可计算化合物的分子量 (摩尔质量)和元素组成,具体如下:

注:化学分子式大小写敏感:C12H18N3O4  c12h18n3o4
计算化合物摩尔质量(分子量)的说明:
  • 要计算化合物的分子量 (摩尔质量),请输入化学/分子式,然后单击“计算”按钮。
分子质量、分子量、摩尔质量和摩尔量的定义:
  • 分子质量(或分子量)是一种物质的一个分子的质量,用统一的原子质量单位(u)表示。(1u等于碳-12中一个原子质量的1/12)
  • 摩尔质量(摩尔重量)是一摩尔物质的质量,以g/mol表示。
/

配液计算器可计算将特定质量的产品配成特定浓度所需的溶剂体积 (配液体积)

  • 输入试剂的质量、所需的配液浓度以及正确的单位
  • 单击“计算”按钮
  • 答案显示在体积框中
动物体内实验配方计算器(澄清溶液)
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)
第二步:请输入动物体内配方组成(配方适用于不溶/难溶于水的化合物),不同的产品和批次配方组成不同,如对配方有疑问,可先联系我们提供正确的体内实验配方。此外,请注意这只是一个配方计算器,而不是特定产品的确切配方。
+
+
+

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) 。

临床试验信息
Does Montelukast Decrease Post Adenotonsillectomy Pain in Children
CTID: NCT02793375
Phase: Phase 3    Status: Completed
Date: 2024-11-22
A Study to Investigate Subcutaneous Isatuximab in Combination With Weekly Carfilzomib and Dexamethasone in Adult Participants With Relapsed and/or Refractory Multiple Myeloma
CTID: NCT06356571
Phase: Phase 2    Status: Not yet recruiting
Date: 2024-11-22
A Study to Investigate Subcutaneous Isatuximab in Combination With Carfilzomib and Dexamethasone in Adult Participants With Relapsed and/or Refractory Multiple Myeloma
CTID: NCT05704049
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-11-14
SC Versus IV Isatuximab in Combination With Pomalidomide and Dexamethasone in RRMM
CTID: NCT05405166
Phase: Phase 3    Status: Active, not recruiting
Date: 2024-11-14
ACTIV-6: COVID-19 Study of Repurposed Medications
CTID: NCT04885530
Phase: Phase 3    Status: Completed
Date: 2024-11-13
View More

Clinical Evaluation of Montelukast in Veterans with Gulf War Illness
CTID: NCT05992311
Phase: Phase 1    Status: Not yet recruiting
Date: 2024-11-06


Premedication to Reduce Amivantamab Associated Infusion Related Reactions
CTID: NCT05663866
Phase: Phase 2    Status: Active, not recruiting
Date: 2024-10-09
BElumosudil for Bronchiolitis Obliterans Prevention/Therapy (BEBOP)
CTID: NCT05922761
Phase: Phase 2    Status: Recruiting
Date: 2024-08-16
ACTIV-6: COVID-19 Study of Repurposed Medications - Arm F (Montelukast)
CTID: NCT05894577
Phase: Phase 3    Status: Completed
Date: 2024-08-16
Montelukast Post-marketing Comparative Study With Theophyline Added to Inhaled Corticosteroid (0476-396)
CTID: NCT00756418
Phase: Phase 4    Status: Completed
Date: 2024-08-15
A Study of MK0476 in the Treatment of Asthma Patients Aged 2-5 Years (0476-907)
CTID: NCT00700661
Phase: Phase 3    Status: Completed
Date: 2024-08-15
Effect of Montelukast on Doxorubicin Induced Cardiotoxicity in Breast Cancer
CTID: NCT05959889
Phase: N/A    Status: Recruiting
Date: 2024-08-09
A Prospective Study to Investigate Safety and Tolerability of Shorter Infusion of Fabrazyme
CTID: NCT06019728
Phase: Phase 4    Status: Recruiting
Date: 2024-08-09
Montelukast in Parkinson Disease
CTID: NCT06113640
Phase: Phase 2/Phase 3    Status: Recruiting
Date: 2024-07-18
Efficacy of Montelukast in Mild-moderate Respiratory Symptoms in Patients With Long-COVID-19:
CTID: NCT04695704
Phase: Phase 3    Status: Terminated
Date: 2024-07-03
Study of the Efficacy and Safety of MK-0476 in Japanese Pediatric Participants With Seasonal Allergic Rhinitis (MK-0476-519)
CTID: NCT01857063
Phase: Phase 3    Status: Completed
Date: 2024-06-17
A Study of Daratumumab, Carfilzomib, Lenalidomide, and Dexamethasone in Patients With Newly-Diagnosed Multiple Myeloma
CTID: NCT04268498
Phase: Phase 2    Status: Recruiting
Date: 2024-06-14
Effects of Mometasone Furoate Dry Powder Inhaler, Fluticasone Propionate, and Montelukast on Bone Mineral Density in Asthmatics (Study P03418)
CTID: NCT00394355
Phase: Phase 4    Status: Completed
Date: 2024-05-22
Two Investigational Drugs in the Prevention of Airway Constriction Brought on by Exercise in Participants With Asthma (0476-911)
CTID: NCT00127166
Phase: Phase 3    Status: Completed
Date: 2024-05-10
A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of Inhaled Montelukast (MK-0476) in Participants With Mild or Moderate Asthma (MK-0476-380 AM3)(COMPLETED)
CTID: NCT00636207
Phase: Phase 1    Status: Completed
Date: 2024-05-09
Effect of Montelukast on Kidney and Vascular Function in Type 1 Diabetes
CTID: NCT05498116
Phase: Phase 4    Status: Recruiting
Date: 2024-05-08
MOntelukast as a Potential CHondroprotective Treatment Following Anterior Cruciate Ligament Reconstruction (MOCHA Trial)
CTID: NCT04572256
PhaseEarly Phase 1    Status: Recruiting
Date: 2024-04-30
Serum Intercellular Adhesion Molecule -1 in Acne Vulgaris Patients : Effect of Montelukast
CTID: NCT06340984
Phase: Phase 3    Status: Not yet recruiting
Date: 2024-04-03
Targeting Leukotrienes in Kidney Disease
CTID: NCT05362474
Phase: Phase 3    Status: Terminated
Date: 2024-04-02
A Study of JNJ-54767414 (HuMax CD38) (Anti-CD38 Monoclonal Antibody) in Combination With Backbone Treatments for the Treatment of Patients With Multiple Myeloma
CTID: NCT01998971
Phase: Phase 1    Status: Completed
Date: 2024-03-27
Montelukast Therapy on Alzheimer's Disease
CTID: NCT03991988
Phase: Phase 2    Status: Completed
Date: 2024-03-07
Iberdomide, Daratumumab, Carfilzomib, and Dexamethasone (Iber-KDd) in Patients With Relapsed/Refractory Multiple Myeloma
CTID: NCT05896228
Phase: Phase 2    Status: Recruiting
Date: 2024-03-01
Repurposed Use of Allergic Rhinitis and Allergic Asthma Drug to Reduce Vertigo and Hearing Loss in Meniere's Disease
CTID: NCT04815187
Phase: Phase 4    Status: Recruiting
Date: 2024-02-28
Montelukast Use in Rheumatoid Arthritis
CTID: NCT05447520
Phase: Phase 2    Status: Completed
Date: 2024-02-13
Effects of a Orally Inhaled Fluticasone Furoate on Growth Velocity in Prepubertal, Paediatric Subjects With Asthma Over a Year
CTID: NCT02889809
Phase: Phase 4    Status: Completed
Date: 2024-01-17
Evaluation of Pharmacokinetic Interaction Between GSK3640254 and Caffeine, Metoprolol, Montelukast, Flurbiprofen, Omeprazole, Midazolam, Digoxin, and Pravastatin in Healthy Adults
CTID: NCT04425902
Phase: Phase 1    Status: Completed
Date: 2024-01-05
Efficacy of Montelukast in Reducing the Incidence and Severity of Monoclonal Antibodies Associated Infusion Reactions
CTID: NCT04198623
Phase: Phase 2    Status: Recruiting
Date: 2023-11-18
SMILES: Study of Montelukast in Sickle Cell Disease
CTID: NCT04351698
Phase: Phase 2/Phase 3    Status: Recruiting
Date: 2023-11-01
A Study to Evaluate the Drug-drug Interaction Potential of BMS-986196 in Healthy Participants
CTID: NCT05852769
Phase: Phase 1    Status: Completed
Date: 2023-09-26
Data Analysis for Drug Repurposing for Effective Alzheimer's Medicines (DREAM) - Montelukast vs Fluticasone
CTID: NCT05457855
Phase:    Status: Active, not recruiting
Date: 2023-07-19
Effect of Montelukast in Preventing Dengue With Warning Signs in Dengue Patients
CTID: NCT04673422
Phase: Phase 2/Phase 3    Status: Completed
Date: 2023-07-18
Investigation the Safety and Efficacy of The Antileukotriene Agents, Montelukast, as Adjuvant Therapy in Obese Patients With Type 2 Diabetes Mellitus
CTID: NCT04075110
PhaseEarly Phase 1    Status: Completed
Date: 2023-04-11
Air Pollution (PM2.5) on Accelerated Atherosclerosis: A Montelukast Interventional Study in Modernizing China
CTID: NCT04762472
Phase: Phase 4    Status: Not yet recruiting
Date: 2023-02-13
Medical vs Surgical Treatment in OSA Among Children
CTID: NCT05651750
Phase: Phase 4    Status: Unknown status
Date: 2022-12-15
The Covid-19 Outpatient Symptom Montelukast Oximetry Trial
CTID: NCT04389411
Phase: Phase 2/Phase 3    Status: Not yet recruiting
Date: 2022-07-25
Fractional Concentration of Exhaled NO(FeNO) to Direct The Treatment of Sub-acute Cough
CTID: NCT02655562
Phase: Phase 4    Status: Suspended
Date: 2022-07-22
BI 671800 in Asthmatic Patients on Inhaled Corticosteroids
CTID: NCT01103349
Phase: Phase 2    Status: Completed
Date: 2022-05-31
Impact Of Montelukast On Allergic Rhinitis And Its Inflammatory Makers
CTID: NCT05381207
PhaseEarly Phase 1    Status: Unknown status
Date: 2022-05-19
Investigation the Effect of Montelukast in COVID-19
CTID: NCT04718285
Phase: Phase 2    Status: Unknown status
Date: 2022-04-28
Role of Montelukast in the Management of Chronic Rhinosinusitis With Nasal Polyps.
CTID: NCT05143502
Phase: Phase 1/Phase 2    Status: Unknown status
Date: 2022-03-18
The Leukotriene Receptor Antagonist Montelukast in the Treatment of Non-alcoholic Steatohepatitis
CTID: NCT04080947
Phase: Phase 1/Phase 2    Status: Completed
Date: 2022-03-16
Study of the Effect of Mometasone Furoate/Formoterol (MF/F), Montelukast and Beclomethasone Dipropionate (BDP) on Plasma Cortisol Levels of Children 5-11 Years Old With Persistent Asthma (P05574)
CTID: NCT01615874
Phase: Phase 2    Status: Withdrawn
Date: 2022-02-16
A Study of Montelukast (MK-0476) Compared With Fluticasone in Pediatric Participants With Chronic Asthma (MK-0476-303)
CTID: NCT00540839
Phase: Phase 3    Status: Withdrawn
Date: 2022-02-14
The Clinical Effects of Montelukast in Patients With Perennial Allergic Rhinitis (0476-265)
CTID: NCT00092118
Phase: Phase 3    Status: Completed
Date: 2022-02-03
Montelukast Back to School Asthma Study (0476-340)
CTID: NCT00461032
Phase: Phase 3    Status: Completed
Date: 2022-02-02
Steroids, Azithromycin, Montelukast, and Symbicort (SAMS) for Viral Respiratory Tract Infection Post Allotransplant
CTID: NCT01432080
Phase: Phase 2    Status: Terminated
Date: 2021-10-20
Predicting the Response to Montelukast by Genetic Variation in Asthmatics
CTID: NCT00116324
Phase: Phase 3    Status: Completed
Date: 2021-05-18
Role of Montelukast in Preventing Relapse in Childhood Idiopathic Nephrotic Syndrome
CTID: NCT04818723
Phase: N/A    Status: Completed
Date: 2021-03-26
Montelukast for Patients With Obstructive Sleep Apnea Syndrome
CTID: NCT03545997
Phase: Phase 3    Status: Terminated
Date: 2021-02-17
Montelukast - a Treatment Choice for COVID-19
CTID: NCT04714515
Phase:    Status: Completed
Date: 2021-01-19
Dose Finding Study for QAW039 in Asthma
CTID: NCT01437735
Phase: Phase 2    Status: Completed
Date: 2020-12-19
Comparison of Daily Mometasone Furoate Nasal Spray Alone Versus a Combination With Montelukast for Treatment of Chronic Rhinosinusitis With Asthma After Functional Endoscopic Sinus Surgery
CTID: NCT02110654
Phase: Phase 4    Status: Completed
Date: 2020-11-23
A Pilot Study to Evaluate the Efficacy of Montelukast in the Treatment of Acute Otitis Media (AOM) in Children
CTID: NCT00189462
Phase: Phase 4    Status: Completed
Date: 2020-11-18
Evaluate the Potential of Montelukast to Prevent Nasal Symptomatology During Colds
CTID: NCT00189475
Phase: Phase 4    Status: Completed
Date: 2020-11-18
A Trial of Montelukast for Maintenance Therapy of Eosinophilic Esophagitis in Children
CTID: NCT01458418
Phase: N/A    Status: Terminated
Date: 2020-10-30
Comparison of Montelukast and Azelastine in Treatment of Moderate to Severe Allergic Rhinitis
CTID: NCT04561687
Phase: N/A    Status: Unknown status
Date: 2020-09-25
Efficacy and Safety of Montelukast in Non Alcoholic Steatohepatitis (NASH)
CTID: N
Pharmaco-EEG for Montelukast. Can we detect neural changes during medication with Montelukast in the EEG?
CTID: null
Phase: Phase 4    Status: Completed
Date: 2016-12-14
A Phase-II, Randomized, Placebo-Controlled, Parallel-Group Clinical Trial to Study the Efficacy and Safety of MK-1029 in Adult Subjects with Persistent Asthma That is Uncontrolled While Receiving Montelukast.
CTID: null
Phase: Phase 2    Status: Completed
Date: 2016-08-22
Bilastine and Montelukast in patients with seasonal allergic rhinoconjunctivitis and asthma: Efficacy of concomitant administration - the SKY study; Acronym: SKY
CTID: null
Phase: Phase 4    Status: Completed
Date: 2016-03-29
The utility of feNO in the differential diagnosis of chronic cough:
CTID: null
Phase: Phase 4    Status: Prematurely Ended
Date: 2015-08-26
A PHASE III, RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED, STUDY TO ASSESS THE EFFICACY AND SAFETY OF LEBRIKIZUMAB IN ADULT PATIENTS WITH MILD TO MODERATE ASTHMA.
CTID: null
Phase: Phase 3    Status: Completed
Date: 2014-08-21
A Randomised, Double Blind, Placebo-Controlled, Multi-Centre, Parallel Group Study to Evaluate the Efficacy and Safety of ADC3680 Administered Once Daily as an Add-On Therapy to Inhaled Corticosteroids and when Co-Administered with Montelukast in Subjects with Inadequately-Controlled Asthma.
CTID: null
Phase: Phase 2    Status: Completed
Date: 2013-05-25
A Double-Blind, Randomized, Placebo-Controlled, Multicenter, Parallel-Group, Adaptive-Design, Dose-Ranging Study of MK-1029 in Adult Subjects with Persistent Asthma
CTID: null
Phase: Phase 2    Status: Prematurely Ended
Date: 2012-12-12
A Six-week Evaluator-Blind, Randomized, Active-Controlled
CTID: null
Phase: Phase 2    Status: Prematurely Ended, Completed
Date: 2012-10-26
A Double-Blind, Randomized, Placebo-Controlled, Multicenter, Crossover Study of MK-1029 in Adult Subjects with Persistent Asthma Who Remain Uncontrolled While Being Maintained on Montelukast
CTID: null
Phase: Phase 2    Status: Completed
Date: 2012-10-25
A randomized, double-blind, placebo-controlled three-period incomplete cross over study to compare the
CTID: null
Phase: Phase 2    Status: Completed
Date: 2012-10-19
Exercise induced bronchoconstriction in children – a single dose of montelukast as alternative to regular daily doses.
CTID: null
Phase: Phase 4    Status: Prematurely Ended
Date: 2012-09-17
A randomized, placebo-controlled, dose-ranging, multi-centre trial of QAW039 (1-450 mg p.o.), to investigate the effect on FEV1 and ACQ in patients with moderate-to-severe, persistent, allergic asthma, inadequately controlled with ICS therapy
CTID: null
Phase: Phase 2    Status: Completed
Date: 2011-09-02
A double blind randomised placebo controlled trial of montelukast in the treatment of acute persistent cough in young people and adults (aged 16-49) in primary care
CTID: null
Phase: Phase 4    Status: Completed
Date: 2011-02-04
A Randomised Double-Blind, Double-Dummy, Placebo-Controlled, Stratified, Parallel-Group, Multicentre, Dose Ranging Study to Evaluate the Efficacy and Safety of GSK2190915 Tablets Administered Once Daily, Fluticasone Propionate Inhalation Powder 100mcg Twice Daily and Montelukast 10mg Daily compared with Placebo for 8 Weeks in Adolescent and Adult Subjects with Persistent Asthma while Treated with Short Acting Beta2-agonist
CTID: null
Phase: Phase 2    Status: Completed
Date: 2010-09-16
Biosensors in the exhaled breath analysis comparison between healthy and asthmatic children and effect of montelukast and fluticasone on frequency pattern detected by biosensors in children with asthma
CTID: null
Phase: Phase 4    Status: Ongoing
Date: 2010-03-26
Parent-determined oral montelukast therapy for preschool wheeze with stratification for arachidonate-5-lipoxygenase (ALOX5) promoter genotype.
CTID: null
Phase: Phase 3    Status: Completed
Date: 2010-02-22
Randomised, double-blind, double-dummy, placebo-controlled,
CTID: null
Phase: Phase 2    Status: Completed
Date: 2010-01-21
Effect of montelukast on levels of metalloproteinase-9 (MMP-9), MMP-12, tissue inhibitor metalloproteinase-1 (TIMP-1), procollagen peptide type 1 C-terminal (PICP) and TGF-beta1 on induced sputum of children suffering from intermittent asthma.
CTID: null
Phase: Phase 3    Status: Ongoing
Date: 2009-02-11
Nenäpolyyppien hoito montelukastilla
CTID: null
Phase: Phase 2, Phase 3    Status: Completed
Date: 2008-11-18
Randomized, Placebo-Controlled Clinical Trial to Study the Efficacy and Safety of Inhaled Corticosteroid Plus Montelukast Compared with Inhaled Corticosteroid Therapy Alone in Patients with Chronic Asthma
CTID: null
Phase: Phase 2    Status: Completed
Date: 2008-09-09
Management of Asthma in School age Children On Therapy
CTID: null
Phase: Phase 4    Status: Completed
Date: 2008-08-22
Efficacy of Oral Leukotriene in long term therapy of mild and moderate obstructive sleep apnea syndrome (OSAS) in children.
CTID: null
Phase: Phase 3    Status: Ongoing
Date: 2008-06-03
Effect of montelukast on lung function in children younger than 2 years with wheezing.
CTID: null
Phase: Phase 3    Status: Ongoing
Date: 2008-06-03
A Double-Blind, Placebo-Controlled, Multicenter, Crossover Study to Evaluate the Effects of a Single Oral Dose of Montelukast, Compared With Placebo, on Exercise-Induced Bronchoconstriction (EIB) in Pediatric Patients Aged 4 to 14 Years
CTID: null
Phase: Phase 4    Status: Completed
Date: 2008-02-08
Effect of leukotriene gene polymorphisms on response to montelukast, a leukotriene receptor antagonist, in adults with asthma
CTID: null
Phase: Phase 4    Status: Ongoing
Date: 2008-01-20
Biosensors in the exhaled breath analysis: comparison between healthy and asthmatic adults and effect of montelukast and fluticasone on frequency pattern detected by biosensors in adults with asthma
CTID: null
Phase: Phase 4    Status: Ongoing
Date: 2007-03-13
Montelukast as a controller of atopic syndrome - MONTAS-study
CTID: null
Phase: Phase 4    Status: Completed
Date: 2007-03-06
A Proof-of-Concept Study to evaluate the benefit from add-on therapy with montelukast versus salmeterol in children with asthma carrying the Arg/Arg-16 beta2-receptor genotype
CTID: null
Phase: Phase 4    Status: Completed
Date: 2007-01-22
Comparative Study of the Effect of Two Doses of Mometasone Furoate Dry Powder Inhaler 200 mcg and 400 mcg QD PM, Fluticasone Propionate 250 mcg BID, and Montelukast 10 mg QD PM, on Bone Mineral Density in Adults With Asthma
CTID: null
Phase: Phase 4    Status: Completed
Date: 2006-11-01
A Multicenter, Randomized, Double-Blind, Double-Dummy, Parallel-Group Study Evaluating the Effects of 2 Different Regimens of Montelukast (Daily Dosing and Intermittent, Episode-Driven Dosing) Compared with Placebo in the Treatment of Episodic Asthma in Children Aged 2 to 5 Years
CTID: null
Phase: Phase 4    Status: Completed
Date: 2006-09-28
Short-term and longterm growth in children with asthma treated with budesonide or montelukast
CTID: null
Phase: Phase 4    Status: Completed
Date: 2006-07-13
Effects of montelukast on airway inflammation in allergic children
CTID: null
Phase: Phase 4    Status: Completed
Date: 2006-06-15
A Multicenter, Randomized, Double-Blind, Parallel-Group 6-Month Study to Evaluate the Efficacy and Safety of Oral Montelukast Sodium, Fluticasone Propionate and Placebo in Patients with Chronic Asthma Who Smoke Cigarettes
CTID: null
Phase: Phase 4    Status: Prematurely Ended, Completed
Date: 2006-03-23
A RANDOMIZED, PLACEBO CONTROLLED, DOUBLE-BLIND, CROSS-OVER, MONOCENTER STUDY TO EVALUATE THE EFFECT OF A 7-DAY MONTELUKAST TREATMENT ON AIRWAY INFLAMMATION AND FUNCTION BY MEANS OF BRONCHOPROVOCATION WITH ADENOSINE-5’-MONOPHOSPHATE IN PATIENTS WITH MILD OR MODERATE ALLERGIC ASTHMA
CTID: null
Phase: Phase 4    Status: Completed
Date: 2006-03-20
Investigation to identify predictors of response to a treatment with montelukast
CTID: null
Phase: Phase 4    Status: Ongoing
Date: 2006-03-17
RANDOMIZED, DOUBLE-BLIND, PLACEBO-CONTROLLED CLINICAL CROSSOVER TRIAL IN ADULT ASTHMATICS EVALUATING THE EFFECT OF CONCOMITANT TWO WEEKS TREATMENT WITH MONTELUKAST (SINGULAIR™) 10 MG ONCE DAILY OR MATCHING PLACEBO TO PREVENT THE DEVELOPMENT OF TOLERANCE TO BRONCHOPROTECTION AND BRONCHODILATION BY BETA-AGONISTS OCCURRING AFTER TWO WEEKS REGULAR TREATMENT WITH SALMETEROL (SEREVENT™) 50µG B.I.D.
CTID: null
Phase: Phase 4    Status: Completed
Date: 2005-12-08
A Multicenter, Double-Blind, Randomized, Cross-Over Design Study to Evaluate the Effect of Montelukast vs. Salmeterol on the Inhibition of Excercise-Induced Bronchoconstriction in Asthmatic Patients Aged 6-14 Years.
CTID: null
Phase: Phase 4    Status: Completed
Date: 2005-12-05
Randomized, double-blind, placebo controlled trial on the efficacy of montelukast in exercise-induced asthma in children
CTID: null
Phase: Phase 4    Status: Completed
Date: 2005-11-14
RANDOMIZED, DOUBLE BLIND TRIAL MONTELUKAST VERSUS LEVOCETIRIZINE IN THE TREATMENT OF SEASONAL RHINITIS AND CONJUNCTIVITIS IN CHILDREN 6-14 YEARS OLD
CTID: null
Phase: Phase 3    Status: Completed
Date: 2005-09-06
Use Of Oral Montelukast As Adjuvant Therapy In The Treatment Of Acute Asthma
CTID: null
Phase: Phase 4    Status: Prematurely Ended
Date: 2005-08-17
A Proof of Concept Study into the Effects on Inhlaed Extra-Fine and Standard Formulations of Beclomethasone Dipropionate and Oral Montelukast on Surrogate Markers of Small and Large Airway Inflammation in Asthma
CTID: null
Phase: Phase 4    Status: Completed
Date: 2005-06-22
A two-centre, randomised, double-blind, double-dummy, placebo-controlled, 3-period cross-over study to evaluate the effect of treatment with repeat doses of GW274150 on the allergen-induced late asthmatic response in subjects with mild asthma.
CTID: null
Phase: Phase 2    Status: Completed
Date: 2004-11-03
A multicenter, randomized, double blind study comparing the clinical effects of intravenous montelukast with palcebo in patients with acute asthma
CTID: null
Phase: Phase 3    Status: Completed
Date: 2004-07-20
A Randomized Controlled Open-Label Phase IV Mono Center Study to Compare the Reponse Profiles of Montelukast versus Fluticason in Children with Preschool Asthma
CTID: null
Phase: Phase 4    Status: Ongoing
Date:
Randomised, double-blind, triple dummy, partial cross-over (each active treatment with placebo) study using an Environmental Challenge Chamber (ECC) to assess the safety and efficacy of 2 weeks of oral BI 671800 ED 50, 200 or 400 mg bid, compared to montelukast 10 mg qd, fluticasone propionate nasal spray 200 µg qd (2 nasal actuations each nostril of 50 µg) versus placebo in seasonal allergic rhinitis patients out of season, sensitive to Dactylis glomerata.
CTID: null
Phase: Phase 2    Status: Completed
Date:
Effet of cysteinyl-leukotrienes inhibitor, montelukast, on cough reflex sensitivity to inhaled capsaicin in patients with bronchial asthma
CTID: UMIN000002583
Phase: Phase IV    Status: Complete: follow-up complete
Date: 2009-10-05
Study to examine the effects of Salmeterol/fluticasone propionate combination(SFC) in patients with cough variant asthma(CVA)
CTID: UMIN000002390
Phase: Phase IV    Status: Complete: follow-up complete
Date: 2009-08-26
Efficacy of Montelukast to prolonged cough.
CTID: UMIN000002360
Phase:    Status: Complete: follow-up complete
Date: 2009-08-21
Efficacy of JPGL-based controller therapy with montelukast for early mild asthma
CTID: UMIN000002219
Phase: Phase IV    Status: Complete: follow-up complete
Date: 2009-07-19
Add-on effect of Montelukast therapy for uncontrollable asthma patients with inhaled corticosteroids : A open-label multicenter study
CTID: UMIN000001288
PhaseNot applicable    Status: Pending
Date: 2008-10-01

生物数据图片
  • Pharmacological inhibition of Cysltr1 protected against APAP-induced hepatotoxicity. (A). Schedule of montelukast administration in APAP-overdose mice. Montelukast (3 mg/kg) or vehicle were administered 1 h after APAP treatment. At 12 h after APAP administration, mice were killed, and blood and liver tissues were collected. Serum levels of ALT (B) and AST (C). (D) H&E staining of liver sections from APAP- or saline-treated mice. APAP-induced centrilobular necrosis was indicated by dotted line. (E) Quantification of liver necrosis area. Data are mean ± SEM, n = 5 for saline groups, n = 7 for APAP groups, **p < 0.01.[1].Pu S, et, al. Montelukast Prevents Mice Against Acetaminophen-Induced Liver Injury. Front Pharmacol. 2019 Sep 18; 10:1070.
  • Montelukast treatment maintained hepatic GSH level and reduced reactive oxygen species production in APAP treated mice. (A) Detection of hepatic glutathione (GSH)/glutathione disulfide (GSSG) level. (B) Real-time PCR analysis of hepatic mRNA expression of GSTa2. (C) Hepatic H2O2 level. (D) APAP-induced thiobarbituric acid reactive substances (TBARS) level. Data are mean ± SEM, n = 5 for saline groups, n = 7 for APAP groups, *p < 0.05 , **p < 0.01.[1].Pu S, et, al. Montelukast Prevents Mice Against Acetaminophen-Induced Liver Injury. Front Pharmacol. 2019 Sep 18; 10:1070.
  • Montelukast inhibit APAP-induced cell damage. Primary hepatocytes were pretreated with montelukast (5 μM) or vehicle (DMSO) 1 h before APAP (2.5 mM) administration. (A) Representative morphological images of primary hepatocytes treated with APAP for 24 h. (B) Quantification of LDH released into the culture medium of primary hepatocyte after treatment with 2.5 mM of APAP for 24 h. Data are mean ± SEM, n = 3 for each group, **p < 0.01. (C) Primary hepatocytes were incubated with 5 mg/l JC-1 dye for 30 min at 37°C in the dark and washed twice with the dye buffer. Then, the cells were quickly subjected to a fluorescence microscope for captured red or green fluorescence. Experiments were repeated three times with similar results.[1].Pu S, et, al. Montelukast Prevents Mice Against Acetaminophen-Induced Liver Injury. Front Pharmacol. 2019 Sep 18; 10:1070.
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