160
Participants
Start Date
January 1, 2022
Primary Completion Date
November 30, 2022
Study Completion Date
November 30, 2022
Streptococcus salivarius K12
The patients in intervention group were treated with Streptococcus salivarius K12 lozenges three times a day after gargling from the first day of radiotherapy up to 1 week after the end of treatment. Streptococcus salivarius K12 is dissolved in the mouth and then swallowed.
Streptococcus salivarius K12 simulants
Patients in control group were treated with Streptococcus salivarius K12 simulants, and its use method and use time are the same as intervention group.
West China Hospital, Sichuan University, Chengdu
West China Hospital
OTHER