Study design
RAU
A randomized parallel double-blind controlled trial design was performed in phase 3. To measure the efficacy of CBD for treating RAU, 72 subjects with RAU randomly received one of three topical interventions: 0.1% CBD, 0.1% triamcinolone acetonide (TA), or placebo using simple randomization according to a manually generated list of random numbers with a 1:1:1 allocation ratio.