A randomized phase I trial of intranasal SARS-CoV-2 vaccine dNS1-RBD in children aged 3-17 years.

IF 6.9 1区医学 Q1 IMMUNOLOGY

NPJ Vaccines Pub Date : 2025-03-17 DOI:10.1038/s41541-025-01096-y

Kai Chu, Jiali Quan, Xiaohui Liu, Qi Chen, Xia Zang, Hanmin Jiang, Donglin Liu, Xiafei Chu, Chunlan Zhuang, Jinle Han, Xiangzhong Ye, Hongxing Pan, Shoujie Huang, Ting Wu, Jun Zhang, Ningshao Xia

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引用次数: 0

Abstract

The intranasal SARS-CoV-2 vaccine dNS1-RBD (Pneucolin®), based on a live-attenuated influenza virus vector, has obtained Emergency Use Authorization in China for individuals aged 18 years and older. Here, we conducted a single-center, double-blind, placebo-controlled, age de-escalation phase 1 clinical trial to evaluate the safety of the dNS1-RBD in children aged 3-17 years (ChiCTR2300068044). Sixty-three participants received 2 intranasal doses of the vaccine or placebo at days 0 and 14. Safety assessments included adverse events/reactions within 30 days and serious adverse events (SAEs) over 12 months. Blood and nasal secretion samples were collected to further monitor blood indices and viral shedding. The vaccine group showed similar adverse reaction rates to the placebo group (39.0% vs 36.4%), with no SAEs related to vaccination. Data suggested that the dNS1-RBD vaccine is well-tolerated in children aged 3-17 years, and warrants further studies on its safety, immunogenicity and efficacy in this population.

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来源期刊

NPJ Vaccines Immunology and Microbiology-Immunology

CiteScore

11.90

自引率

4.30%

发文量

146

审稿时长

11 weeks

期刊介绍： Online-only and open access, npj Vaccines is dedicated to highlighting the most important scientific advances in vaccine research and development.