A Study in Healthy Men to Find Out How Different Doses of BI 3009947 Are Tolerated and How Different Formulations or Food Influence How BI 3009947 is Taken up Into the Blood

Inclusion Criteria: 1. Healthy male trial participant according to the assessment of the investigator, as based on a complete medical history including a physical examination, vital signs (blood pressure (BP), pulse rate (PR)), 12-lead electrocardiogram (ECG), and clinical laboratory tests 2. Age of 18 to 45 years (inclusive) 3. Body mass index (BMI) of 18.5 to 29.9 kg/m\^2 (inclusive) 4. Signed and dated written informed consent in accordance with international council for harmonisation-good clinical practice (ICH-GCP) and local legislation prior to admission to the trial Exclusion Criteria: 1. Any finding in the medical examination (including BP, PR or ECG) deviating from normal and assessed as clinically relevant by the investigator 2. 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 3. Any laboratory value outside the reference range that the investigator considers to be of clinical relevance 4. Any evidence of a concomitant disease. This does not include acceptable concomitant conditions that were not assessed as clinically relevant by the investigator (e.g. possible cases of myopia, hyperopia, astigmatism, non-active pollinosis, or mild acne of the skin) 5. Further exclusion criteria apply.