2598
Overall response rate ( ORR ) to GEM - P in the entire cohort was 80 % ( complete response ( CR ) 37 % , partial response 44 % ) with 14 / 15 CR confirmed as a metabolic CR on PET and ORR of 85 % in the 20 second - line patients .
 Chemical: GEM
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: GEM