Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of Single Rising Oral Doses of BI 691751 in Healthy Male Volunteers in a Randomised, Single-blind, Placebo-controlled Design (Part I) and Investigation of Relative Bioavailability of BI 691751 Given as Tablet and Oral Solution to Healthy Male Subjects in an Open, Randomised, Single-dose, Single Period Parallel Group Design (Part II).

Cmax (Part II)

时间窗: 1 hour (h) before drug administration and 20 minutes (min), 40min, 1h, 1h 30min, 2h, 2h 30min, 3h, 4h, 6h, 8h, 10h, 12h, 24h, 48h, 72h, 144h, 216h, 384h, 552h and 720h after drug administration

Cmax (maximum measured concentration of the analyte of BI 691751 in plasma) (part II)

Frequency of Subjects With Drug-related Adverse Events (Part I)

时间窗: Part I: 'Day1 to Day21 for Dose 1, 2,3 &4 and Day1 to Day45 for Dose group 5,6 & 7

Frequency of subjects with drug-related Adverse Events (AEs) (Part I)

AUC0-72h (Part II)

时间窗: 1 hour (h) before drug administration and 20 minutes (min), 40min, 1h, 1h 30min, 2h, 2h 30min, 3h, 4h, 6h, 8h, 10h, 12h, 24h, 48h and 72h after drug administration

AUC0-72h (area under the concentration-time curve of the analyte of BI 691751 in plasma over the time interval from 0 to 72 h) (part II). PPS-BA included all subjects in the TS who were randomised to the BA part, who provided at least one observation for at least one primary endpoint, had no important protocol violations relevant for the statistical evaluation of BA and did not experience emesis at or before twice the median tmax.