China's nasal-spray COVID-19 vaccines undergoing clinical trials: official
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E-mail Xinhua, June 12, 2021
Researchers are conducting phase-1 and phase-2 clinical trials on a China-made inhaled COVID-19 vaccine, a Chinese health official said Friday.
After completing the collection of clinical-trial data, experts will study the safety and effectiveness of the inhaled vaccine, a modified version of an injectable adenovirus vector COVID-19 vaccine that has already hit the market, said Shao Yiming, a researcher at the Chinese Center for Disease Control and Prevention, at a press conference.
The inhaled COVID-19 vaccine was jointly-developed by researchers from the Institute of Military Medicine under the Academy of Military Sciences and China's CanSino Biologics Inc.
Inhaled or nasal-spray vaccines were selected as one of China's vaccine technologies to combat COVID-19 from the very beginning, Shao added.
Another nasal-spray COVID-19 vaccine, developed by Xiamen University, the University of Hong Kong and Beijing Wantai Biological Pharmacy, has completed phase-1 and phase-2 trials. Researchers are applying phase-3 clinical trials overseas, to further evaluate the efficacy of the vaccine, according to Shao.
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