15724
The results of this investigation confirmed that add - on therapy with sitagliptin to various insulin regimens could improve glycemic control without severe hypoglycemia and / or weight gain .
 Chemical: sitagliptin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: sitagliptin