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当前位置:药品说明书与价格首页 >> 糖尿病 >> Ⅱ型糖尿病 >> 药品目录 >> Korlym(米非司酮,mifepristone)

Korlym(米非司酮,mifepristone)

2012-05-29 23:49:27  作者:新特药房  来源:中国新特药网天津分站  浏览次数:279  文字大小:【】【】【
简介:KORLYM Manufacturer:Corcept Therapeutics Pharmacological Class:Cortisol receptor blocker. Active Ingredient(s):Mifepristone 300mg; tabs. Indication(s):To control hyperglycemia secondary to hy ...

KORLYM

Manufacturer:
Corcept Therapeutics

Pharmacological Class:
Cortisol receptor blocker.

Active Ingredient(s):
Mifepristone 300mg; tabs.

Indication(s):
To control hyperglycemia secondary to hypercortisolism in adult patients with endogenous Cushing’s syndrome who have type 2 diabetes or glucose intolerance and have failed surgery or are not candidates for surgery.

Pharmacology:
Korlym blocks the glucocorticoid receptor type II (GR-II) to which cortisol normally binds. By blocking this receptor, Korlym inhibits the effects of excess cortisol in Cushing’s syndrome patients.

Clinical Trials:
An uncontrolled, open-label, 24-week, multicenter clinical study was conducted to evaluate the safety and efficacy of Korlym in the treatment of endogenous Cushing’s syndrome. Patients belonged to one of two cohorts: a “diabetes” cohort (29 patients, 26 with type 2 diabetes and 3 with glucose intolerance), and a “hypertension” cohort (21 patients). Efficacy was evaluated separately in the two cohorts. Korlym was started in all patients at a dose of 300mg once a day. The study protocol allowed an increase in dose to 600mg after 2 weeks, and then by additional 300mg increments every 4 weeks to a maximum of 900mg/day for patients <60kg, or 1200mg/day for patients >60kg, based on clinical tolerance and clinical response. Patients in the diabetes cohort underwent standard oral glucose tolerance tests at baseline and periodically during the trial. The primary efficacy analysis for the diabetes cohort was an analysis of responders. A responder was defined as a patient who had a ≥25% reduction from baseline in glucose AUC. Mean HbA1c was 7.4% in the 24 patients with HbA1c values at baseline and Week 24. For these 24 patients mean reduction in HbA1c was 1.1% (95% CI -1.6, -0.7) from baseline to the end of the trial.

There were no changes in mean systolic and diastolic blood pressures at the end of the trial relative to baseline in the modified intent-to-treat group (n=21).

Legal Classification:
Rx

Adults:
Swallow whole. Take with a meal. Initially 300mg once daily; may increase in 300mg increments every 2–4 weeks to max 1200mg once daily; do not exceed 20mg/kg/day. If interrupted, re-start at 300mg and titrate to dose lower than the one that resulted in treatment interruption. Renal or mild to moderate hepatic impairment: max dose 600mg. Severe hepatic impairment: not recommended. Concomitant strong CYP3A inhibitors (see Interactions): max 300mg/day.

Children:
Not recommended.

Contraindication(s):
Pregnancy (Cat.X). Concomitant simvastatin, lovastatin, CYP3A substrates with narrow therapeutic ranges (eg, cyclosporine, ergots, fentanyl, pimozide, quinidine, sirolimus, tacrolimus). Concomitant systemic corticosteroids for serious medical conditions or illnesses (eg, immunosuppression after organ transplantation). History of unexplained vaginal bleeding. Endometrial hyperplasia with atypia or endometrial carcinoma.

Warnings/Precautions:
Pregnancy must be excluded before initiating therapy and if treatment is interrupted for >14 days in females of reproductive potential. Prevent pregnancy during and for 1 month after stopping treatment (use non-hormonal contraceptive). Monitor for adrenal insufficiency; if suspected, discontinue treatment immediately and give glucocorticoids; may resume at a lower dose after resolution. Correct hypokalemia prior to initiating therapy; measure serum potassium 1–2 weeks after starting or increasing dose, then periodically. Women with hemorrhagic disorders or are receiving concurrent anticoagulant therapy. Autoimmune disorders. Heart failure. Coronary vascular disease. Monitor for Pneumocystis jiroveci infection. Nursing mothers: not recommended.

Interaction(s):
Potentiated by strong CYP3A inhibitors (eg, ketoconazole, itraconazole, nefazodone, ritonavir, nelfinavir, indinavir, atazanavir, amprenavir, fosamprenavir, boceprevir, clarithromycin, conivaptan, lopinavir, nefazodone, posaconazole, ritonavir, saquinavir, telaprevir, telithromycin, voriconazole). Caution with moderate CYP3A inhibitors (eg, amprenavir, aprepitant, atazanavir, ciprofloxacin, darunavir/ritonavir, diltiazem, erythromycin, fluconazole, fosamprenavir, grapefruit juice, imatinib, verapamil). Avoid concomitant CYP3A inducers (eg, rifampin, rifabutin, rifapentin, phenobarbital, phenytoin, carbamazepine, St. John’s wort). May potentiate drugs metabolized by CYP2C8/2C9 (eg, fluvastatin, NSAIDs, warfarin, repaglinide); monitor, use smallest effective dose. May potentiate drugs metabolized by CYP2B6 (eg, bupropion, efavirenz). Antagonizes hormonal contraceptives.

Adverse Reaction(s):
Nausea, fatigue, headache, decreased blood potassium, arthralgia, vomiting, peripheral edema, hypertension, dizziness, decreased appetite, endometrial hypertrophy; QT prolongation, hypokalemia, reduced HDL-C, elevated TSH.

How Supplied:
Tabs—28, 280

Last Updated:
5/15/2012

制造商:
corcept治疗

类药物:
肾上腺皮质激素受体阻断剂。

活性成分(S):
米非司酮300毫克;标签。

指示(S):
为了控制高血糖继发皮质醇与内源性库欣氏综合征的成年患者,有2型糖尿病或葡萄糖耐受性,并没有手术或不适合手术的候选人。

药理作用:
korlym阻止糖皮质激素受体II型(GR-Ⅱ),其中皮质醇通常结合。通过阻断这种受体,Korlym柯兴氏综合征患者多余的皮质醇抑制效果。

临床试验:
一个不受控制的,开放标签,24周,多中心临床研究进行了评估内源性库欣氏综合征的治疗中的安全性和有效性Korlym。患者属于两​​个同伙之一:“糖尿病”人群(29例,26例2型糖尿病和葡萄糖耐受性3),和“高血压”队列(21例)。疗效评价分别在两个同伙。所有患者korlym开始剂量为300mg,每日一次。研究协议允许剂量增加至600毫克,2周后,再由300毫克递增,每4周为到900mg/day最大的患者<60公斤,或为病人1200mg/day>60公斤,根据临床耐受性和临床响应。在审讯过程中,患者接受糖尿病世代在基线和定期的标准口服葡萄糖耐量试验。糖尿病队列为主要疗效分析反应的分析。被定义为从基线减少的AUC葡萄糖≥25%患者有一个响应。在基线和24周的HbA1c值的24例,平均HbA1c为7.4%。对于这24例患者平均糖化血红蛋白的下降1.1%(95%CI为-1.6,-0.7)从基线到试验结束。

在试验结束时没有修改的意向性治疗组(N = 21),相对基线平均收缩压和舒张压的变化。


法律分类:
RX

成人:
吞下。带着一顿饭。最初为300mg,每日一次;可能在300毫克递增,每2-4周增加至最大1200毫克,每天一次;不超过20mg/kg/day。如果中断,重新启动在300毫克和滴定剂量低于导致中断治疗。肾或轻度至中度肝功能不全:最大剂量为600mg。严重肝功能不全:不推荐。伴随CYP3A的强抑制剂(见药物相互作用):最大300mg/day。

儿童:
不推荐使用。

禁忌症(S):
怀孕(Cat.X)。伴随辛伐他汀,洛伐他汀,狭窄的治疗范围CYP3A的底物(如环孢素,ergots,芬太尼,匹莫齐特,奎尼丁,西罗莫司,他克莫司)。伴随严重的医疗状况或疾病的全身性类固醇(例如,器官移植后的免疫抑制)。历史的原因不明的阴道出血。非典型子宫内膜增生或子宫内膜癌。


警告/注意事项:
开始治疗之前必须排除妊娠,如果治疗中断> 14天的女性生殖潜力。防止怀孕后1个月期间和停止治疗(使用非激素的避孕)。监测肾上腺皮质功能不全;如果怀疑,立即停止治疗,并给予糖皮质激素可能恢复后分辨率较低的剂量。正确低钾前开始治疗1-2周后开始或增加剂量测量血钾,然后定期。妇女与出血性疾病或同时接受抗凝治疗。自身免疫性疾病。心脏衰竭。冠状动脉血管疾病。肺囊虫感染的监测。哺乳母亲:不推荐。

互动(补):
Potentiated由CYP3A的强抑制剂(如酮康唑,伊曲康唑,奈法唑酮,利托那韦,奈非那韦,茚地那韦,阿扎那韦,安普那韦,福沙那伟,boceprevir,克拉霉素,conivaptan,洛匹那韦,奈法唑酮,泊沙康唑,利托那韦,沙奎那韦,telaprevir治疗,泰利霉素,伏立康唑)。注意用温和的CYP3A的抑制剂(如安普那韦,阿瑞,阿扎那韦,环丙沙星,红霉素,地尔硫卓的darunavir /利托那韦,氟康唑,福沙那伟,葡萄柚汁,伊马替尼,维拉帕米)。避免伴随CYP3A的诱导剂(如利福平,利福布丁,rifapentin,苯巴比妥,苯妥英钠,卡马西平,圣约翰草)。会增强通过CYP2C8/2C9代谢的药物(如氟伐他汀,非甾体抗炎药,华法林,瑞格列奈);显示器,使用最小的有效剂量。会增强CYP2B6(如安非他酮,依非韦伦)代谢​​的药物。拮抗激素避孕药。

不良反应(S):
恶心,疲劳,头痛,降低血液中的钾,关节痛,呕吐,血管神经性水肿,高血压,头晕,食欲下降,子宫内膜肥厚,QT间期延长,低血钾,降低LDL-C,TSH升高。

如何提供:
标签-28,280

FDA批准Korlym用于治疗某些库欣综合征患者

2012年2月17日,Corcept Therapeutics公司宣布美国食品药品管理局(FDA)已经批准将Korlym(米非司酮)用于合并2型糖尿病或葡萄糖不耐受,以及不适合做手术或手术治疗无效的成人内源性库欣综合征患者,控制由皮质醇增多症引起的高血糖症。Korlym是皮质醇受体阻断剂,其常规剂量为1300 mg的片剂、每日服用1片。
FDA批准Korlym是基于一项无对照的、开放性、多中心的3期研究的临床数据。该研究历时24周,受试者为50例不适合行手术治疗或术后病情复发的内源性库欣综合征患者,他们同时还合并葡萄糖不耐受(29例患者)或高血压(21例患者)。葡萄糖不耐受组有60%的患者在口服葡萄糖耐量试验中曲线下面积较基线缩小25%以上,该组患者的平均糖化血红蛋白A1c(HbA1c)值由7.4%减至6.3%。基线时HbA1c水平高于正常值的14例患者都出现水平降低。15例合并2型糖尿病的患者中有7例抗糖尿病药物用量减少,余者用量保持不变。

对治疗有应答的患者被允许参加延伸试验,完成这项3期研究的患者中有88%选择参加延伸试验。

研究中患者治疗所使用的Korlym初始剂量为300 mg、每日1次,随后将剂量调整至最大临床有效剂量。根据该药品的说明书规定,处方Korlym的医生可以通过评估库欣综合征临床表现的改善程度和对药物的耐受性,确定各患者的合理剂量。在治疗的前6周,这些表现可能包括血糖控制情况的变化、抗糖尿病药物的需求量、胰岛素水平以及精神症状。在治疗2个月后,除了观察血糖控制方面的进一步变化外,还可以通过监测类库欣综合征表现、痤疮、多毛症、紫纹、体重下降等指标评价疗效。

米非司酮具有较强的抗孕激素作用,使用该药可导致妊娠终止。因此,对于有生殖潜能的妇女,在开始Korlym治疗之前或在治疗中断14 d以上的情况下一定要先排除妊娠状态的可能。

对接受Korlym治疗的患者应密切监测肾上腺功能不全的症状和体征。在开始治疗前,应纠正低钾血症,在治疗期间应监测血钾水平。服用korlym的妇女可能会出现子宫内膜增厚或异常阴道出血。在使用QT间期延长药物时,应避免使用Korlym,另外,在将Korlym与强CYP3A抑制剂配伍使用时应谨慎行事。

责任编辑:admin


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