24
Participants
Start Date
November 1, 2021
Primary Completion Date
October 24, 2022
Study Completion Date
October 24, 2022
Probiotics-O (Burgerstein)
Topical oral treatment with the probiotic Streptococcus salivarius K12 (BIOTICS-O, Burgerstein) in form of a lozenge, daily, during 3 weeks.
Placebo [inactivated Probiotics-O (Burgerstein)]
Topical oral treatment with the placebo \[inactivated probiotic Streptococcus salivarius K12 (BIOTICS-O, Burgerstein)\] in form of a lozenge, daily, during 3 weeks.
Geneva University Hospitals (HUG), Geneva
Prof. Jacques SCHRENZEL
OTHER