Prasad 认为 Moderna 疫苗的风险比与新辅助帕博利珠单抗的预期结果相当,疫苗在新辅助情境下是否仍有增益尚无答案。
风险比恰好就是在手术前而非手术后使用帕博利珠单抗(如 Moderna 与默沙东试验的做法)所能得到的结果。显而易见的推测是,这种极其昂贵、量身定制的疫苗与仍留在体内的肿瘤在免疫学上起到了同样的作用。如果在新辅助试验中使用,疫苗还会有效吗?只有另一项试验才能回答。原文 (en)
The hazard ratio was exactly what you would get if you give pembro before surgery instead of after (as the moderna merck trial does). The obvious speculation is the vaccine— incredibly costly and bespoke— and the tumor still in the body—do the same thing immunologically. Will the vaccine still work if you give it in a neo adjuvant trial? Only another trial will answer that.