Other Outcomes
Measure: Plasma PK parameters of ACT-541478 - Part A and B, incl. A3 (fed condition): Cmax
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part A and B, incl. A3 (fed condition): tmax
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part A and B, incl. A3 (fed condition): AUC0-inf
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part A and B, incl. A3 (fed condition): t½
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part C, incl. C1 to C3 (adults) and E1 (elderly): Cmax
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part C, incl. C1 to C3 (adults) and E1 (elderly): tmax
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part C, incl. C1 to C3 (adults) and E1 (elderly): AUCτ
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Plasma PK parameters of ACT-541478 - Part C, incl. C1 to C3 (adults) and E1 (elderly): t1/2
Time: Blood samples for PK analysis will be taken at various timepoints. Total duration: up to 5 days.
Measure: Specific/additional parameters related to safety and tolerability - Part B
Time: At various timepoints. Total duration: up to 5 days.