24098
Study 733 ( n = 328 ) demonstrated efficacy on the primary endpoint ( estimated drug - placebo differences of 30 mg : - 2 . 41 , 95 % confidence interval ( CI ) ( - 4 . 50 to - 0 . 31 ) p = 0 . 0245 ; 60 mg : - 2 . 86 , 95 % CI ( - 4 . 97 to - 0 . 75 ) p = 0 . 0082 ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None