Qin Liu, Yanhong Chu, Jie Shao, Hanqing Qian, Ju Yang, Huizi Sha, Lanqi Cen, Manman Tian, Qiuping Xu, Fangjun Chen, Yang Yang, Weifeng Wang, Kai Wang, Lixia Yu, Jia Wei, Baorui Liu
Personalized neoantigen vaccines have shown strong immunogenicity in clinical trial, but still face various challenges in facilitating an efficient antitumor immune response. Here, a personalized neoantigen nanovaccine (PNVAC) platform for adjuvant cancer immunotherapy is generated. PNVAC triggers superior protective efficacy against tumor recurrence and promotes longer survival than free neoantigens, especially when combined with anti-PD-1 treatment in a murine tumor model. A phase I clinical trial (ChiCTR1800017319) is initiated to evaluate the safety, immunogenicity, and prophylactic effect of PNVAC on preventing tumor recurrence in patients with high-risk gastric/gastroesophageal junction cancer after adjuvant chemotherapy of postsurgical resection...
November 9, 2022: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)