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当前位置:药品说明书与价格首页 >> 抗肿瘤药 >> 新药推荐 >> 天门冬酰胺酶菊欧氏杆菌注射液|Erwinaze(Erwinia chrysanthemi)

天门冬酰胺酶菊欧氏杆菌注射液|Erwinaze(Erwinia chrysanthemi)

2012-04-02 12:25:29  作者:新特药房  来源:中国新特药网天津分站  浏览次数:200  文字大小:【】【】【
简介: Manufacturer:EUSA Pharma (USA), Inc. Pharmacological Class:Asparagine-specific enzyme. Active Ingredient(s):Asparaginase Erwinia chrysanthemi 10,000 IU; per vial; lyophilized pwd for IM ...

Manufacturer:
EUSA Pharma (USA), Inc.

Pharmacological Class:
Asparagine-specific enzyme.

Active Ingredient(s):
Asparaginase Erwinia chrysanthemi 10,000 IU; per vial; lyophilized pwd for IM inj after reconstitution.
Indication(s):
As a component of a multi-agent chemotherapeutic regimen for the treatment of patients with acute lymphoblastic leukemia (ALL) who have developed hypersensitivity to E. coli-derived asparaginase.

Pharmacology:
Asparaginase Erwinia chrysanthemi catalyzes the deamidation of asparagine to aspartic acid and ammonia, resulting in a reduction in circulating levels of asparagine.

The mechanism of action of Erwinaze is thought to be based on the inability of leukemic cells to synthesize asparagine due to lack of asparagine synthetase activity, resulting in cytotoxicity specific for leukemic cells that depend on an exogenous source of the amino acid asparagine for their protein metabolism and survival.

Clinical Trials:
The safety and efficacy of Erwinaze was demonstrated in Study 1, a single-arm, multi-center, open-label, safety and clinical pharmacology trial. Additional safety data was obtained in the Erwinaze Master Treatment (EMTP), an expanded access program. Study 1 enrolled patients treated on National Cancer Institute (NCI)-sponsored cooperative group ALL protocols who were unable to continue to receive pegaspargase due to hypersensitivity reactions. The main outcome measure was determination of the proportion of patients who achieved a serum trough asparaginase level ≥0.1 IU/mL. Serum trough asparaginase activity ≥0.1 IU/mL has been demonstrated to correlate with asparagine depletion (asparagine <0.4mcg/mL or 3µM) and to serum levels that predict clinical efficacy.

Fifty-eight patients were enrolled in Study 1, of these 48 were evaluable for the main outcome measure based on availability of pharmacokinetic samples in course 1. Patients were given Erwinaze 25,000 IU/m2 IM for two weeks (total 6 doses) as a replacement for each scheduled dose of pegaspargase remaining on their original treatment protocol. Study 1 met its main outcome measure of demonstrating that 100% of patients achieved serum trough asparaginase concentrations ≥0.1 IU/mL at 48 hours (n=35) or 72 hours (n=13) after the third dose. In an exploratory analysis, 80% (28/35) of those evaluated at 48 hours and 38% (5/13) evaluated at 72 hours had serum asparaginase activity levels ≥0.4 IU/mL.


Legal Classification:
Rx

Contraindication(s):
History of serious pancreatitis, thrombosis, hemorrhagic events with prior L-asparaginase therapy.

Adults & Children:
Give by IM inj (max 2mL/inj site). To substitute for a pegaspargase dose: 25,000 IU/m2 three times weekly (M/W/F) for 6 doses for each planned pegaspargase dose. To substitute for a native E. coli asparaginase dose: 25,000 IU/m2 for each scheduled native E. coli asparaginase dose within a treatment.

Warnings/Precautions:
Have resuscitation equipment available and other agents necessary to treat anaphylaxis. Discontinue if serious hypersensitivity reactions occur. Monitor for pancreatitis; discontinue if severe or hemorrhagic pancreatitis manifested by abdominal pain >72hrs and amylase elevation ≥2XULN occurs. Withhold therapy if mild pancreatitis; may resume after resolution. Monitor glucose levels at baseline and during therapy. Discontinue if thrombotic or hemorrhagic event occurs; may resume after resolution. Pregnancy (Cat.C). Nursing mothers: not recommended.

Adverse Reaction(s):
Serious hypersensitivity reactions including anaphylaxis, pancreatitis, abnormal transaminases, coagulation abnormalities including thrombosis and hemorrhage, nausea, vomiting, hyperglycemia.


How Supplied:
Vials—5


Last Updated:
2/1/2012

制造商:
酶联免疫吸附制药(美国)公司

类药物:
天门冬特定的酶。

活性成分(S):
天门冬酰胺菊欧文氏菌是10,000 IU,每瓶冻干配制后:PWD肌肉注射。
指示(S):
作为一个例急性淋巴细胞白血病(ALL)的,谁开发过敏大肠杆菌衍生门冬酰胺酶治疗多药化疗方案的一个组成部分。

药理作用:
门冬酰胺酶的菊欧文氏菌催化的脱酰胺,天门冬,天门冬氨酸和氨,减少循环天门冬水平。

行动机制Erwinaze被认为是基于对白血病细胞不能合成天门冬由于缺乏天冬酰胺合成酶的活性,具体取决于其蛋白质代谢的氨基酸天门冬外源性白血病细胞中的细胞毒作用和生存。

临床试验:
在研究1,单臂,多中心,开放标签,安全性和临床药理试验证明的安全性和疗效Erwinaze。获得额外的安全性数据的Erwinaze主治疗(EMTP的),扩大接入方案。研究纳入国家癌症研究所(NCI)赞助合作组中的所有协议无法继续接受pegaspargase由于过敏反应治疗的患者。主要成果的措施是取得血清槽门冬酰胺酶的水平≥0.1 IU / mL的患者比例的决心。血清谷天冬酰胺酶的活性≥0.1 IU / mL的天门冬枯竭(天门冬<0.4mcg/mL或3μM)和预测临床疗效血清已被证明关联。

研究中的1例58例,其中48个被评估的主要成果1当然根据药代动力学样品的可用性措施。患者均给予两周(共6个剂量)替换为每个预定pegaspargase他们原来的治疗方案剩余的剂量Erwinaze 25,000 IU/m2的IM。研究1满足其展示的主要成果措施,达到100%的患者血清天门冬酰胺浓度槽≥0.1 IU / mL的48小时(N = 35)或72小时后的第三个剂量组(n = 13)。在探索性分析,80%在48小时和38%(5/13)在72小时内评估的评估(28/35)≥0.4 IU /毫升血清天门冬酰胺酶的活性水平。

法律分类:
RX

禁忌症(S):
严重的胰腺炎,血栓形成,出血事件之前,L-门冬酰胺治疗的历史。

成人和儿童:
给予肌肉注射(最大2mL/inj网站)。来代替一个pegaspargase剂量:25000 IU/m2每周三次(男/女/女)为6每个计划pegaspargase剂量剂量。为取代原生大肠杆菌天门冬酰胺剂量:25,000 IU/m2为每个计划的原生大肠杆菌内治疗天门冬酰胺的剂量。

警告/注意事项:
有急救设备和其他必要的治疗过敏的药物。停止,如果发生严重的过敏反应。监测胰腺炎;停止,如果严重或出血性胰腺炎,表现为腹痛> 72hrs和淀粉酶升高≥2XULN发生。如果轻度胰腺炎隐瞒治疗可能恢复后的决议。在基线和治疗期间监测血糖水平。终止如果发生血栓或出血事件;可能恢复后的决议。怀孕(Cat.C)。哺乳母亲:不推荐。

不良反应(S):
严重的过敏反应,包括过敏性休克,急性胰腺炎,转氨酶异常,凝血功能异常,包括血栓形成和出血,恶心,呕吐,高血糖。


如何提供:
样品瓶-5

最后更新:
2012年2月1日

FDA批准用Erwinaze来治疗急性淋巴细胞性白血病

11月18日消息,美国食品和药品管理局今天批准Erwinaze(天门冬酰胺酶菊欧氏杆菌(Erwinia chrysanthemi))用于治疗急性淋巴细胞性白血病(ALL)患者,这些患者对于用大肠杆菌源的天冬酰胺酶和培加帕酶[培加帕酶聚乙二醇化天门冬酰胺酶]化疗药物治疗ALL有过敏反应(超敏反应)。

急性淋巴细胞白血病是一种癌症类型,其中骨髓过度制造一种白细胞——淋巴细胞。白细胞可帮助身体抵抗感染并在骨髓形成。

每周将Erwinaze直接注入肌肉3次,它通过破坏存在于血液中的机体制造蛋白质所需的氨基酸——天门冬酰胺来起作用。所有细胞生长都需要天门冬酰胺,但白血病细胞却不能产生这种氨基酸。当用Erwinaze治疗患者时,白血病细胞就会死亡。正常的人细胞能通过生物合成制造满足自身需要的足量天门冬酰胺,不受Erwinaze治疗影响。

美国FDA药物评价和研究中心的血液学和肿瘤学制品办公室主任Richard Pazdur, M.D.称,Erwinaze获批准强调了FDA的承诺,即在药物是为了有限患者群未得到满足的医疗需求的情况下,允许用新的试验终点使该药物获得批准。

Erwinaze的安全性与疗效经58名患者参与的临床试验来评估。另外的安全性资料从Erwinaze主要治疗方案(EMTP),一项纳入 843名患者的扩展计划采集。两项研究中的患者都由于过敏反应不能继续接受来自大肠杆菌的培加帕酶或天门冬酰胺酶。

在支持疗效试验中,主要结局(终点)是测出有与较好的白血病控制和生存相关的持续天门冬酰胺酶活性水平的患者比例。所有可评价患者均显示在给药后48或72小时维持了预设定的天门冬酰胺酶活性阈值。

与Erwinaze治疗有关的副作用包括严重过敏反应(过敏症)、胰腺炎、肝脏酶的血液水平高(转氨酶和胆红素异常)、血液凝固、出血、恶心、呕吐和高血糖。

Erwinaze获批准前有两种天门冬酰胺特异性酶产品– 爱施巴(Elspar,通用名天门冬酰胺酶注射剂)和Oncaspar(培加帕酶)获FDA批准用于治疗ALL患者。这两种产品都是来源于大肠杆菌的产品。

在美国ALL累及不到20万人,Erwinaze已被指定为孤儿药物。它由位于宾夕法尼亚州兰霍恩的EUSA制药有限公司制造。

责任编辑:admin


相关文章
ERWINASE(Erwinia L-asparaginase for solution for injection)
Erwinaze(天门冬酰胺酶菊欧氏杆菌,Erwinia chrysanthemi)注射剂
天门冬酰胺酶注射液ERWINAZE(Erwinia chrysanthemi)
FDA批准用Erwinaze治疗淋巴细胞性白血病
门冬酰胺酶注射剂|Erwinaze(Erwinia chrysanthemi)
 

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