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The population pharmacokinetic / pharmacodynamic ( PK / PD ) modelling approach was applied to investigate the relationship between losmapimod concentration and QT prolongation .
 Chemical: losmapimod
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: losmapimod