BMS撤回opdivo+yervoy一线治疗TMB ≥10mut/Mb的NSCLC上市申请
大家忽略这个以为今天没啥新闻就没带电脑出去蹭了一顿无比丰盛并且有着非常难得机会向业界大佬学习的晚宴后就直接回家的人用手机排版的效果
· Following discussions with the FDA, Bristol-Myers Squibb has withdrawn its marketing application for Opdivo (nivolumab) plus low-dose Yervoy (ipilimumab) for the first-line treatment of non-small cell lung cancer (NSCLC) patients with tumor mutational burdens (TMB) of at least 10 mutations/megabase.
· The company says more evidence is required to demonstrate the relationship between TMB and PD-L1 and overall survival (OS) in these patients in a first-line setting. The additional data will include final results from Part 1a of the Phase 3 Checkmate-227 trial, expected in H1. Since the availability of the data will likely fall beyond the FDA's action date of May 20, it decided withdraw the application.主要是需要更多的数据证明high TMB、PD-L1和OS的关系,需要等待1a部分的结果,即下图的灰色部分PD-L1 ≥1%的群体
请允许吐槽下这个为了卖ipi的设计:Checkmate 227入组未经治疗的转移或复发性无驱动基因突变的NSCLC患者,分为Part 1和Part 2。Part1按照PD-L1表达又分成a和b,1a评估nivo联合ipi或nivo单独用药对比化疗治疗PD-L1阳性的NSCLC;而1b评估nivo联合ipi对比化疗和nivo联合化疗对比化疗一线治疗PD-L1阴性的NSCLC。Part 1的主要研究终点有两个,一个是PD-L1选择人群中nivo+ipi对比化疗的OS,另一个是Part 1所有检测了TMB人群中nivo+ipi对比化疗的PFS。【而Part2相对设计比较简单,nivolumab联合化疗对比化疗,不考虑PD-L1和TMB,主要研究终点为OS,和Part1有部分重合—因为Part 1b的次要终点已经评估了PFS,这部分类似K药的一线联合化疗,只是单个研究不区分组织分型】。
之前公布成功及会议上披露的是两个主要研究终点中的后者,当时的结论:
后来10月份sBLA的时候update了相关的TMB划分人群的OS数据,HR相当,和HR for PFS相比,TMB划分结果并不理想可能也不合理。
由于PD-L1选择人群中nivo+ipi对比化疗的OS目前没结果需继续随访,所以还是等等这部分及整体的OS数据。
引用Pharmews