A Study to Investigate the Effect of Single and Repeated Oral Doses of ACT-539313 on What the Body Does to Flurbiprofen, Omeprazole, Midazolam in Healthy Subjects

100 mg ACT-539313 (hard capsules) will be administered twice per day in period 2 (morning and evening of Day 8), period 3 (morning and evening of Day 9 to 14) and period 4 (morning and evening of Day 15).

One daily dose of flurbiprofen 50 mg will be administered in period 1 (morning of Day 1), period 2 (morning of Day 8), and period 4 (morning of Day 15).

A single dose of omeprazole 20 mg will be administered in period 1 (morning of Day 1), period 2 (morning of Day 8), and period 4 (morning of Day 15).

A single dose of midazolam 2 mg will be administered in period 1 (morning of Day 1), period 2 (morning of Day 8), and period 4 (morning of Day 15).