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| A logo of China's vaccine specialist CanSino BioLogics is pictured at the company's headquarters in Tianjin, China, Aug 17, 2020. (File photo by= REUTERS/Thomas Peter) |
[Asia News = Reporter Reakkana] BEIJING: An early-stage clinical trial showed that an inhaled version of CanSino BioLogics' (CanSinoBIO) COVID-19 vaccine triggered immune responses without serious side effects Reuters reported.
The company's chief executive announced in April that the two-dose candidate requires lower doses than the injected version and could help CanSinoBIO boost its production capacity. Two inhaled doses of the Ad5-nCoV vaccine, given 28 days apart, elicited similar levels of neutralizing antibodies to those of a single injection, according to a peer-reviewed paper. The readings are based on data from a phase one trial involving 130 healthy adult participants in China and published in the medical journal the Lancet Infectious Disease on Monday (Jul 26).
The inhaled vaccine did not cause serious side effects in the study, the paper said. Some of the trial participants received the injectable version of the vaccine followed by an inhaling booster 28 days later. The group induced strong neutralizing antibody responses, the report said. Authors of the paper include researchers at the Academy of Military Medical Sciences, CanSino Biologics, and other Chinese institutions. Meanwhile, the single-dose injected Ad5-nCoV vaccine is already cleared for use in China, Mexico and Pakistan.
