PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25487917-8 2015 However, when AC220 was combined with the CDK4 inhibitor PD0332991 (palbociclib) at 0.1 mumol/L or higher, no resistance mutations were obtained, indicating that the CDK4-inhibiting activity of AMG 925 contributed to the failure to develop drug resistance. quizartinib 14-19 cyclin dependent kinase 4 Homo sapiens 166-170