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研发动态

Purdue止痛药三期临床研究成功准备提交FDA审核
2014-03-16         

 

Purdue止痛药三期临床研究成功准备提交FDA审核

2014年3月13日讯 /生物谷BIOON/ --最近FDA决定冒着专家委员会投票反对的风险批准Zogenix公司的重酒石酸氢可酮类止痛药Zohydro上市引起了业界的广泛关注。因为这种药物具有一定的成瘾性,容易造成药物滥用。一些分析人士甚至不客气的批评FDA,称这将造成又一个药物滥用的典型案例。与此同时,Zogenix公司的老对手Purdue公司最近宣布公司研发的同类非成瘾止痛药物临床三期研究已经完成,将于今年晚些时候提交FDA审查,这也或将使Zogenix公司的Zohydro上市前景蒙上一层阴影。

Purdue公司开发的新药临床三期研究结果显示,大部分患者的疼痛情况减轻了30%以上,而48%的患者病痛缓和程度达到了50%以上。公司代表认为,淘汰成瘾性止痛药是未来止痛药市场的必然趋势之一,现在的技术水平完全能够达到这一要求。(生物谷Bioon.com)

详细英文报道:

As the commercial release of Zogenix's hydrocodone bitartrate pain drug Zohydro spawns headlines from coast-to-coast warning of a potential epidemic of abuse similar to what was seen with OxyContin, the rival Purdue Pharma says it has successfully wrapped a Phase III trial of its abuse-resistant competitor. And the data sets the stage for an FDA filing later this year as Zogenix ($ZGNX) labors at its own early-stage efforts at making a pain pill that's harder to abuse.

The FDA triggered a firestorm of controversy recently when officials decided to ignore a lopsided expert panel vote against Zohydro--largely because of its potential for being abused by addicts looking for a quick high by crushing, snorting and injecting the painkillers--and approved the pain drug for marketing. Consumer groups, influential politicians and physicians swiftly moved in on the attack, saying that the FDA had set up another scenario for drug abuse that was likely to be felt in every city and town in the U.S.

"It's the perfect drug of abuse for drug users," one doctor in Orange County warned CBS, as media groups around the country seized on the issue. And there's no sign that the controversy will end anytime soon--unless a competitor drug like this comes along.

Over at Bloomberg, writer Drew Armstrong notes that FDA pain drug czar Bob Rappaport has already said the agency would consider jerking Zohydro from the market if an abuse-resistant version become available.

That would make Purdue very happy.

"We firmly believe that the market must move to all abuse-deterrent formulations," Purdue R&D chief Gary Stiles told Bloomberg. "There's not a technical reason why we and others can't do that." Purdue originally developed and sold Oxy, which started the whole controversy.

Zogenix's investors didn't miss the implications of Purdue's advance today. The biotech's stock, which has been on the rise, is down 17% Wednesday morning.

But before Zogenix's new marketing effort is damaged, Purdue has to win an approval.

According to Stamford, CT-based Purdue, investigators determined that the majority of patients treated with once-daily hydrocodone bitartrate "experienced at least a 30% improvement in pain intensity. Nearly half of patients (48%) achieved a 50% improvement with hydrocodone bitartrate. The most common adverse events (≥5%) reported by patients treated with the once-daily agent were constipation, nausea, vomiting, dizziness and headache, which are typically associated with opioid analgesics."

 

 

关键词:Purdue,Zogenix,止痛药

信息来源:生物谷

 


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