信源:Gilead Submits New Drug Application to U.S. Food and Drug Administration for Tenofovir Alafenamide (TAF) for the Treatment of Chronic Hepatitis B作者: tonychant 时间: 2016-1-21 21:52
吉利德的COO John Milligan在一月份的摩根大通医疗会议上表示,HIV药物已经有几十年的历史了,那些从20多岁开始接受HIV治疗的患者有望活到70多岁,这就意味着他们要接受终身治疗。因此我们需要最简单、最安全的治疗方式,TAF可以作为这些长期治疗手段的重要组成部分。
野村证券的分析师M. Ian Somaiya认为,此番对TAF的陈述将HIV推到关注的焦点位置,扩大了吉利德的投资组合,而不再仅仅局限于丙肝药物。正如M. Ian Somaiya所言,这些数据为Viread到TAF的市场转型提供了一条清晰的道路,并且帮助吉利德获得持续到21世纪20年代中期专营权。(生物谷Bioon.com)
原文 Gilead Sciences, Inc. HIV Drug TAF Could Replace Current Standard Treatment Viread
Gilead Sciences, Inc.’s (NASDAQ:GILD) next-generation HIV drug, called TAF, proved to be safe for use in patients suffering from a mild-to-moderate form of kidney impairment, the company announced Thursday at the Conference on Retroviruses and Opportunistic Infections.
The Phase III study, carried out on 242 HIV-positive patients, evaluated the effectiveness of the drug when used to treat HIV-1 infection in treatment-na?ve adults. The study found that kidney function did not deteriorate. In fact, a marker of kidney disease actually decreased when patients in the trial switched from using conventional HIV treatment drugs to a TAF-based cocktail.
The biopharmaceutical company filed a new drug application for TAF in November last year. The drug, which is currently awaiting a US Food and Drug Administration ruling, is likely to replace Gilead’s Viread in HIV combinational therapy treatments.
Gilead will lose US patent protection for Viread in 2017. The company is working on ensuring that TAF is approved well before the patent protection on Viread expires. Gilead, hence, is working hard to present TAF's safety and efficacy profile as one that can indicate that the TAF-based regimen is a newer, more improved version of Viread, giving doctors a reason to recommend patients to switch to the new regimen.
Gilead is likely to receive a ruling pertaining to the fate of its new drug by November 2015. The company said in September that the treatment was effective in subduing the virus and safer than an older medicine, based on two trials among 1,733 patients who had not been treated before.
HIV medication “is given for decades, people who come onto therapy in their 20s are estimated to be able to live to their 70s and they need lifelong therapy,” said John Milligan, Gilead’s chief operating officer, in a January presentation at the JPMorgan Healthcare Conference.
“That means we need the simplest, safest medication for these patients going forward, and we think that TAF can be the most important component of that long-term therapy,” he further added.
Finance firm Nomura’s analyst M. Ian Somaiya believes that the TAF presentation brings “HIV succession planning into focus,” broadening the company's portfolio once again from not just being centered on hepatitis C drugs. The data, as per the analyst, provides Gilead with “a clear path to transition the market away from Viread to TAF,” while boosting “the sustainability of the franchise to mid-2020.”