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PD-1免疫治疗药物拓益®尿路上皮癌适应症在中国获批

2021-04-14 医谷网 医谷网

近日,中国国家药品监督管理局(NMPA)批准特瑞普利单抗注射液(商品名:拓益®)用于含铂化疗失败包括新辅助或辅助化疗12个月内进展的局部晚期或转移性尿路上皮癌的治疗。

近日,中国国家药品监督管理局(NMPA)批准特瑞普利单抗注射液(商品名:拓益?)用于含铂化疗失败包括新辅助或辅助化疗12个月内进展的局部晚期或转移性尿路上皮癌的治疗。作为国内首个获批的晚期尿路上皮癌非选择性人群适应症的免疫治疗药物,特瑞普利单抗用药前无需PD-L1 IHC表达检测,可惠及更多尿路上皮癌患者。

尿路上皮癌复发率高,患者预后差,生活质量受严重影响

尿路上皮癌(UC)是常见的一种膀胱癌,占所有膀胱癌病例的90%以上 。作为中国十大常见癌种之一,尿路上皮癌易转移、易复发、治疗手段有限,成为我国重要疾病负担之一,并严重威胁患者的生存时间和生活质量 。此类疾病早期通常以手术治疗为主,对于不能手术或转移性尿路上皮癌患者,其标准一线治疗为以铂类为基础的化疗,当化疗敏感性下降则会引起肿瘤复发 。

北京大学肿瘤医院郭军教授指出:“目前国内外针对尿路上皮癌转移复发后的患者,治疗手段非常有限,内科治疗主要依赖化疗作为唯一治疗有效的手段,患者生存时间及生活质量都有待极大的提高。”

PD-1免疫治疗带来新希望,惠及更多尿路上皮癌患者

特瑞普利单抗是一款重组人源化抗PD-1单克隆抗体注射液,拥有独特的双重作用机制。此次新适应症获批基于由北京大学肿瘤医院郭军教授和上海交通大学医学院附属仁济医院黄翼然教授共同牵头的POLARIS-03研究 ,结果显示,在136例含铂化疗失败包括新辅助或辅助化疗12个月内进展的局部晚期或转移性尿路上皮癌患者中,经独立中心影像(IRC)评估,整体人群的客观缓解率(ORR)为27.2%,疾病控制率(DCR)为46.3%,中位总生存期(mOS)达14.6个月。中位缓解持续时间(DoR)尚未成熟,达到客观缓解的受试者中,12个月时仍持续缓解的比例为67.1%。

值得注意的是,POLARIS-03是首个针对中国一线标准治疗失败的晚期尿路上皮癌非选择人群开展的关键临床研究。数据显示4,特瑞普利单抗在总体人群及各亚组中均显示了明确的抗肿瘤活性及持续的有效性。整体人群ORR为27.2%,其中PD-L1阳性人群的ORR为42.2%, PD-L1阴性人群的ORR为18.8%。因此,不论PD-L1表达状况如何,晚期尿路上皮癌患者均可获益。另外,特瑞普利单抗的安全性及耐受性与先前研究结果一致。

上海交通大学医学院附属仁济医院黄翼然教授表示:“根据目前国外已发表的PD-1/PD-L1二线治疗晚期尿路上皮癌的疗效数据显示,客观缓解率普遍在20%左右,中位总生存期大多在10个月左右。而POLARIS-03研究显示,总体人群中位总生存期达到14.6个月,延长了患者的生存获益。相信免疫治疗的崛起将改变近30年尿路上皮癌的治疗现状。”

强强联手深化本土合作,携手推进国内泌尿肿瘤诊疗水平

阿斯利康中国和君实生物在今年二月宣布了深度战略合作,阿斯利康中国将全权代理君实生物自主研发的特瑞普利单抗尿路上皮癌适应症的市场推广。阿斯利康中国肿瘤业务部总经理殷敏表示:“肿瘤业务是阿斯利康着力发展的重要疾病领域之一,也是公司发展的战略重地。阿斯利康深耕泌尿肿瘤20多年,在学术研究、专业能力、商业推广等方面都积累了丰富的经验。特瑞普利单抗尿路上皮癌适应症的获批为晚期尿路上皮癌患者带去了更多治疗选择,同时也是阿斯利康在泌尿肿瘤领域的又一次拓展。未来,我们将努力使患者获益于特瑞普利单抗,并与君实生物进一步携手合作,共同在肿瘤疾病领域探索,推动肿瘤诊疗水平,践行‘植根中国,服务中国’的承诺。”

“继黑色素瘤、鼻咽癌适应症获批之后,特瑞普利单抗又在尿路上皮癌治疗领域迎来了新的里程碑。这是众多患者、研究者和研发人员共同努力的结果。”君实生物首席医学官Patricia Keegan博士表示,“君实生物在中国开创性地开展了针对非选择人群的临床探索并取得了令人瞩目的结果,这让我们感到十分兴奋,也对特瑞普利单抗这样一款广谱抗癌药物的开发潜力充满信心。同时,我也期待这款药物将通过公司与阿斯利康的合作,为更多中国尿路上皮癌患者提供安全有效、高性价比的治疗新选择。”

关于尿路上皮癌

尿路上皮癌(UC)是全球范围内最常见的泌尿系统癌症,严重威胁患者的生存时间和质量。早期以手术治疗为主,对于不能手术的局部晚期或转移性尿路上皮癌患者,以铂类为基础的化疗是其标准的一线治疗,随着化疗敏感性下降,会导致肿瘤复发和疾病进展,对于此类标准治疗后出现疾病进展的晚期尿路上皮癌患者,治疗选择有限。

关于特瑞普利单抗注射液

特瑞普利单抗注射液作为我国批准上市的首个国产以PD-1为靶点的单抗药物,获得国家科技重大专项项目支持。本品获批的第一个适应症为用于既往接受全身系统治疗失败的不可切除或转移性黑色素瘤的治疗。2020年12月,特瑞普利单抗成功通过国家医保谈判,被纳入新版目录。2021年2月,特瑞普利单抗获得国家药品监督管理局(NMPA)批准,用于既往接受过二线及以上系统治疗失败的复发/转移性鼻咽癌患者的治疗。2021年4月,特瑞普利单抗获得NMPA批准,用于含铂化疗失败包括新辅助或辅助化疗12个月内进展的局部晚期或转移性尿路上皮癌的治疗。此外,特瑞普利单抗还获得了《中国临床肿瘤学会(CSCO)黑色素瘤诊疗指南》、《CSCO尿路上皮癌诊疗指南》推荐。

2021年2月,特瑞普利单抗联合化疗用于晚期一线未接受过系统性治疗的复发转移性鼻咽癌的新适应症上市申请获得NMPA受理。2021年3月,君实生物开始向美国食品药品监督管理局(FDA)滚动提交特瑞普利单抗上市申请。目前,特瑞普利单抗已在黏膜黑色素瘤、鼻咽癌、软组织肉瘤领域获得FDA授予1项突破性疗法认定、1项快速通道认定和3项孤儿药资格认定。

特瑞普利单抗自2016年初开始临床研发,至今已在全球开展了30多项临床研究,积极探索本品在黑色素瘤、鼻咽癌、尿路上皮癌、肺癌、胃癌、食管癌、肝癌、胆管癌、乳腺癌、肾癌等适应症的疗效和安全性,与国内外领先创新药企的联合疗法合作也在进行当中,期待让更多中国以及其它国家的患者获得国际先进水平的肿瘤免疫治疗。

关于POLARIS-03研究(NCT03113266)

POLARIS-03尿路上皮癌注册临床研究(NCT03113266)为一项开放、多中心、II期注册临床研究,旨在评估特瑞普利单抗二线治疗局部晚期或转移性尿路上皮癌患者的有效性和安全性。由北京大学肿瘤医院郭军教授与上海交通大学医学院附属仁济医院黄翼然教授共同牵头,于2017年5月至2019年9月,通过15家研究中心共纳入151例晚期或转移性尿路上皮癌患者。研究采用RECISTv1.1标准,每8周进行1次疗效评价,主要终点为ORR,次要终点包括疗效持续时间(DOR)、无进展生存期(PFS)和总生存期(OS)。

关于阿斯利康与君实生物合作

2021年2月28日,阿斯利康中国与君实生物(1877.HK,688180.SH)宣布一项战略合作,双方将基于各自在药品研发、市场覆盖、渠道拓展等领域的优势资源,积极探索在肿瘤领域的全新深度合作。本次合作中,阿斯利康获得君实生物自主研发的抗PD-1单抗药物特瑞普利单抗注射液在中国大陆地区非核心市场的推广权,以及尿路上皮癌适应症的全国独家推广权,君实生物将继续负责特瑞普利单抗在中国大陆地区除尿路上皮癌之外获批适应症的核心市场推广。

声明:特瑞普利单抗目前在中国已获批的适应症为黑色素瘤、鼻咽癌、尿路上皮癌,阿斯利康不推荐任何未被批准的药品适应症使用。

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    2022-02-15 Homburg
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