Interaction of BI 425809 With Midazolam, Warfarin, Omeprazole and Digoxin

Inclusion criteria: * Healthy male subjects according to the investigators assessment, based on a complete medical history including a physical examination, vital signs (blood pressure (BP), puls rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests * Age of 18 to 55 years (incl.) * Body Mass Index (BMI) of 18.5 to 29.9 kg/m2 (incl.) * Signed and dated written informed consent prior to admission to the study in accordance with good clinical practice (GCP) and local legislation * Ready and able to use highly effective methods of birth control that result in a low failure rate of less than 1% per year when used consistently and correctly. A list of contraception methods meeting these criteria is provided in the subject information Exclusion criteria: * Any finding in the medical examination (including blood pressure (BP), puls rate (PR) or electrocardiogram (ECG)) is deviating from normal and judged as clinically relevant by the investigator * Repeated measurement of systolic blood pressure outside the range of 90 to 140 mmHg, diastolic blood pressure outside the range of 50 to 90 mmHg, or pulse rate outside the range of 50 to 90 bpm * Any laboratory value outside the reference range that the investigator considers to be of clinical relevance * Any evidence of a concomitant disease judged as clinically relevant by the investigator * Gastrointestinal, hepatic, renal, respiratory, cardiovascular, metabolic, immunological or hormonal disorders * Cholecystec…