The study will enroll approximately 20 participants to achieve approximately 15 PK-evaluable participants for assessment. This study will consist of 2 parts: Part A of the study will evaluate the effect of repeat-dose administration of brigatinib on the single-dose PK of midazolam. Part B of the study is exploratory and will allow participants to continue brigatinib until disease progression (PD). All participants will receive study drug via the oral route. Participants will be assigned to: Midazolam 3 mg + Brigatinib 90 mg.~The overall time to participate in this study is 26 months. Participants will have a 28-day PK cycle in Part A and a maximum of 23 cycles in Part B, and a 30-day follow-up period after end of treatment.
The purpose of this study is to characterize the effect of repeat-dose administration of brigatinib 180 milligram (mg) once daily (QD) on the single-dose pharmacokinetics (PK) of midazolam.