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These findings suggest that add - on therapy with sitagliptin can be expected to achieve improvement of poor glycemic control irrespective of a patient ' s demographic profile .
 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