30209
Results : The immunogenicity strategy for T - DM1 used a risk - based , tiered approach that included screening and titration to detect antitherapeutic antibodies ; confirmation of positive responses ; and characterization to assess whether the immune response is primarily to the antibody or to the linker - drug and / or new epitopes in trastuzumab resulting from conjugation .
 Chemical: DM1
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: DM1