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Ocera Therapeutics宣布OCR-002在急性肝衰竭患者治疗中的研究数据 [复制链接]

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发表于 2016-10-25 14:35 |只看该作者 |倒序浏览 |打印
Ocera Therapeutics Announces Late-Breaker Abstract Accepted for Presentation at the AASLD Liver Meeting 2016
-- Encouraging Data from NIH-Sponsored Study of OCR-002 in the Treatment of Patients with Acute Liver Failure --
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October 24, 2016 09:05 ET | Source: Ocera Therapeutics, Inc.

PALO ALTO, Calif. and RESEARCH TRIANGLE PARK, N.C., Oct. 24, 2016 (GLOBE NEWSWIRE) -- Ocera Therapeutics, Inc. (NASDAQ:OCRX), today announced that clinical data from STOP-ALF, a Phase 2a clinical trial to evaluate the Safety and Tolerability of Ornithine Phenylacetate (OCR-002) in patients with Acute Liver Failure, will be presented in the late-breaking poster session at The Liver Meeting® 2016, the 67th Annual Meeting of the American Association for the Study of Liver Disease (AASLD), being held on November 11-15, 2016, in Boston, Massachusetts.

Key findings of this safety study reflected in the abstract include the following:

    No drug-related serious adverse events observed; all doses well-tolerated
    Therapeutic serum levels of phenylacetate (PAA) were achieved at infusion rates of OCR-002 20g/24h
    Therapeutic PAA levels appeared to result in considerable ammonia excretion in urine as phenylacetylglutamine (PAGN), the end product by which PAA clears the neurotoxin ammonia, even in patients with non-oliguric renal failure

“Hyperammonemia can lead to cerebral edema, and remains a significant cause of morbidity and mortality in patients with acute liver failure,” commented William M. Lee, M.D., principal investigator of the study. “We are very excited by the results of this safety trial and hope further studies can be conducted to examine the potential for OCR-002 to help clear the high ammonia levels, and improve the outcome of these patients.”

“We are very pleased this important study has been completed,” said Stan Bukofzer, M.D., Chief Medical Officer of Ocera. “In light of the safety profile and tolerability of OCR-002 in this very ill patient population, we believe it could have potential in the management of Acute Liver Failure.”

Additional details including the presentation abstract can be found on the AASLD website by clicking this link.

About STOP-ALF

The Phase 2a study was a multi-center, open-label study, conducted in two cohorts of patients diagnosed with acute liver failure. Patients were treated pursuant to one of four escalating dosing regimens of intravenously-administered OCR-002, an ammonia scavenger, which were advanced only after safety and certain pharmacokinetic data were reviewed. Cohort 1 was comprised of affected patients with minimal renal dysfunction (defined as serum creatinine ≤ 1.5 mg/dL and mean arterial pressure of > 65 mm Hg). Cohort 2 included affected patients with compromised renal function (defined as serum creatinine > 1.5 mg/dL and < 10 mg/dL with mean arterial pressure of > 65 mm Hg). Dose levels within the four regimens ranged from approximately 3.33 g/24h to 20 g/24h for up to 5 treatment days. 36 of 47 patients enrolled are considered evaluable having completed at least 72 hours of treatment. The study, ClinicalTrials.gov: NCT00518440, was conducted by the Acute Liver Failure Study Group, grant number U-01-58369, an NIH-sponsored network of university tertiary care liver transplant sites, with support and supply of study medication from Ocera.

About Acute Liver Failure (ALF)

Acute liver failure is a rare syndrome with a significant mortality rate affecting an estimated 2,000 previously healthy individuals annually in the U.S. ALF is a rapid deterioration of liver function, often due to acetaminophen and idiosyncratic drug reactions, resulting in the liver’s inability to clear the circulating toxin Ammonia, which can lead to cerebral edema, intracranial hypertension, brainstem herniation and death.

About Ocera

Ocera Therapeutics, Inc. is a clinical stage biopharmaceutical company focused on the development and commercialization of OCR-002 (ornithine phenylacetate) in both intravenous and oral formulations. OCR-002 is an ammonia scavenger and has been granted orphan drug designation and Fast Track status by the U.S. Food and Drug Administration (FDA) for the treatment of hyperammonemia and resultant hepatic encephalopathy (HE) in patients with acute liver failure and acute-on-chronic liver disease.

Ocera's HE clinical development efforts include an ongoing Phase 2b clinical trial, STOP-HE, which is evaluating the safety and efficacy of intravenously-administered OCR-002 in resolving neurocognitive symptoms of acute HE in hospitalized patients with elevated ammonia. The Company expects to complete enrollment in the STOP-HE trial in the fourth quarter of 2016 with top-line data to be published soon thereafter.

Concurrent with STOP-HE, Ocera is evaluating orally-available OCR-002 in a Phase 1 study in patients with cirrhosis as a chronic use option to maintain remission of HE. Results of part one of this study are expected to be published by the end of 2016 with part two expected to commence in the first half of 2017. For additional information, please see www.ocerainc.com.

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发表于 2016-10-25 14:35 |只看该作者
Ocera Therapeutics宣布OCR-002在急性肝衰竭患者治疗中的研究数据

Ocera Therapeutics宣布延迟断裂摘要被接受用于在AASLD肝脏会议上的介绍
- 鼓励NIH赞助的OCR-002在急性肝衰竭患者治疗中的研究数据 -
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十月24,2016 09:05 ET |资料来源:Ocera Therapeutics,Inc.

美国加利福尼亚州帕洛阿尔托和北卡罗来纳州研究三角公园(2016年10月24日)(全球新闻网) - Ocera Therapeutics公司(纳斯达克股票代码:OCRX)今天宣布,STOP-ALF的临床数据,2a期临床试验评估乙酸苯乙酸(OCR-002)在急性肝衰竭患者的安全性和耐受性,将在最新的海报会议上呈现在肝脏会议®2016年,第67届美国肝脏研究协会年会疾病(AASLD),于2016年11月11-15日在马萨诸塞州波士顿举行。

该安全研究的主要发现反映在摘要中包括以下内容:

    未观察到药物相关严重不良事件;所有剂量均耐受性良好
    在OCR-002 20g / 24h的输注速率下达到苯乙酸(PAA)的治疗血清水平
    治疗性PAA水平似乎导致在尿中相当大的氨排泄作为苯乙酰谷氨酰胺(PAGN),PAA清除神经毒素氨的最终产物,甚至在具有非少尿肾衰竭的患者

“高氨血症可导致脑水肿,并且仍然是急性肝衰竭患者的发病率和死亡率的重要原因,”该研究的主要研究者William M. Lee说。 “我们对这一安全性试验的结果感到非常兴奋,并希望进一步的研究,以检查OCR-002的潜力,帮助清除高氨水平,改善这些患者的结果。

“我们非常高兴这项重要的研究已经完成,”Ocera首席医疗官Stan Bukofzer博士说。 “鉴于OCR-002在这种非常不适的患者群体中的安全性和耐受性,我们认为它可能具有治疗急性肝衰竭的潜力。

其他详细信息,包括演示摘要可以在AASLD网站上找到,点击此链接。

关于STOP-ALF

2a期研究是多中心,开放标签研究,在两组诊断为急性肝衰竭的患者中进行。根据静脉内施用的OCR-002(氨清除剂)的四种逐步增加的给药方案之一治疗患者,所述OCR-002仅在安全性和某些药代动力学数据被检查后才进展。队列1由具有最小肾功能障碍(定义为血清肌酐≤1.5mg/ dL和平均动脉压> 65mm Hg)的受影响患者组成。队列2包括受损的肾功能(定义为血清肌酐> 1.5mg / dL和<10mg / dL,平均动脉压> 65mm Hg)的受影响患者。四种方案中的剂量水平范围为约3.33g / 24h至20g / 24h,最多5个治疗日。所招募的47名患者中的36名被认为可完成至少72小时的治疗。该研究ClinicalTrials.gov:NCT00518440由急性肝衰竭研究组(授权号U-01-58369,由NIH赞助的大学三级保健肝移植位点网络)进行,支持并提供来自Ocera的研究药物。

关于急性肝衰竭(ALF)

急性肝衰竭是罕见的综合征,在美国每年影响估计2000名以前健康的个体的显着死亡率。ALF是肝功能的快速恶化,通常是由于对乙酰氨基酚和特异性药物反应,导致肝脏不能清除循环毒素氨,可导致脑水肿,颅内高压,脑干疝和死亡。

关于Ocera

Ocera Therapeutics,Inc.是临床阶段生物制药公司,专注于静脉内和口服制剂中OCR-002(鸟氨酸苯乙酸)的开发和商业化。 OCR-002是一种氨清除剂,并且已被美国食品和药物管理局(FDA)批准用于治疗急性肝衰竭和急性发作患者的高氨血症和所产生的肝性脑病(HE)的孤儿药指定和快速通道状态慢性肝病。

Ocera的HE临床开发工作包括正在进行的2b期临床试验,STOP-HE,其评估静脉内施用的OCR-002在解决急性HE的神经认知症状中的安全性和功效。公司预计将在2016年第四季度完成STOP-HE试验的入学,其后的最新数据将很快公布。

与STOP-HE同时,Ocera正在评估口服OCR-002在肝硬化患者的1期研究中作为慢性使用选择以维持HE的缓解。本研究第一部分的结果预计将在2016年年底公布,第二部分预计将于2017年上半年开始。有关更多信息,请访问www.ocerainc.com
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