Article
作者: Cao, Xiang ; Yan, Fang-Rong ; Yang, Kun ; Wan, Na ; Wang, Xu-Wen ; Kong, Jian ; Quan, Ya-Ru ; Jin, Peng-Fei ; Wang, Kai-Qin ; Xiu, Shi-Xin ; Li, Chang-Gui ; Xu, Kang-Wei ; Shen, Yuan ; Wan, Wen-Yan ; Chen, Li ; Peng, Ling ; Jiang, Xian-Min ; Xu, Ming ; Wang, Wen-Juan ; Li, Jing-Xin ; Yang, Min ; Xue, Yu-Peng ; Tao, Shi-Yao ; Yao, Ai-Hua ; Pan, Hong-Xing
The licensed adjuvanted recombinant glycoprotein E (gE) subunit vaccine (HZ/su) is highly effective against herpes zoster (HZ). This randomised, active-controlled, non-inferiority trial (ChiCTR2300079076) compared the immunogenicity and safety of a novel gE-Fc fusion protein vaccine candidate (LZ901) with HZ/su in 300 healthy adults aged ≥50 years without prior HZ vaccination in Wuxi, China. Participants received either two doses of LZ901 (30-day interval; n = 151) or HZ/su (60-day interval; n = 149). The primary outcomes was the proportion of participants with simultaneous positive responses to two or more cytokines (IFN-γ, IL-2, TNF-α, or CD40L) 30 days after the second dose (referred to as gE-specific CD42+/CD82+ T-cell responses). LZ901 demonstrated non-inferiority to HZ/su (margin > -10%) for both CD4+ and CD8+ T-cell responses. Significantly higher response rates were observed with LZ901 for CD42 + T-cell responses (83.0% [117/141] vs 58.1% [79/136]; p < 0.0001) and CD82 + T-cell responses (46.8% [66/141] vs 8.8% [12/136]; p < 0.0001). Adverse reactions were markedly lower with LZ901 (41.1% [62/151] vs 87.9% [131/149]; p < 0.0001), including grade 3 events (0.7% [1/151] vs 6.0% [9/149]). LZ901 induced superior cellular immunogenicity and exhibited a better safety profile than HZ/su in adults ≥50 years, supporting its potential as a promising HZ prevention candidate vaccine.