Xinghai Zhang, Feiyang Luo, Huajun Zhang, Hangtian Guo, Junhui Zhou, Tingting Li, Shaohong Chen, Shuyi Song, Meiying Shen, Yan Wu, Yan Gao, Xiaojian Han, Yingming Wang, Chao Hu, Xiaodong Zhao, Huilin Guo, Dazhi Zhang, Yuchi Lu, Wei Wang, Kai Wang, Ni Tang, Tengchuan Jin, Menglu Ding, Shuhui Luo, Cuicui Lin, Tingting Lu, Bingxia Lu, Yang Tian, Chengyong Yang, Guofeng Cheng, Haitao Yang, Aishun Jin, Xiaoyun Ji, Rui Gong, Sandra Chiu, Ailong Huang
BACKGROUNDAs Omicron is prompted to replicate in the upper airway, neutralizing antibodies (NAbs) delivered through inhalation might inhibit early-stage infection in the respiratory tract. Thus, elucidating the prophylactic efficacy of NAbs via nasal spray addresses an important clinical need.METHODSThe applicable potential of a nasal spray cocktail containing 2 NAbs was characterized by testing its neutralizing potency, synergetic neutralizing mechanism, emergency protective and therapeutic efficacy in a hamster model, and pharmacokinetics/pharmacodynamic (PK/PD) in human nasal cavity...
April 8, 2024: JCI Insight