ACT-541468

Study of the Way the Body Takes up, Distributes, and Gets Rid of ACT-541468 in Subjects With Abnormal Kidney Function Compared to Healthy Subjects

Efficacy and Safety of ACT-541468 in Elderly Subjects With Insomnia Disorder

A Study to Investigate the Effects of ACT-541468 on Nighttime Respiratory Function in Patients With Mild to Moderate Obstructive Sleep Apnea

A Clinical Study to Assess Next-day Driving Performance Following Administration of ACT-541468 in Middle-aged and Elderly Subjects

A Clinical Study to Examine the Drug-drug Interactions Between ACT-541468 and Citalopram in Healthy Male and Female Subjects

A Study to Evaluate the Effects of ACT-541468 on Respiration in Patients With Moderate Chronic Obstructive Pulmonary Disease

Study to Evaluate the Abuse Potential of ACT-541468 in Healthy Recreational Drug Users

A Clinical Study to Investigate the Food Effect on the Pharmacokinetics of ACT-541468 in Healthy Male Subjects

A Study to Investigate the Drug-drug Interactions Between ACT-541468 and Ethanol in Healthy Subjects

Pharmacokinetic Interaction Between Diltiazem and ACT-541468 in Healthy Subjects

A Clinical Study to Investigate the Potential Interactions Between Food and ACT-541468 and Between ACT-541468 and Midazolam

A Study of ACT-541468 in Healthy Japanese and Caucasian Subjects

A Study in Healthy Male Subjects to Investigate Whether Administration of ACT-541468 Can Affect the Fate in the Body (Amount and Time of Presence in the Blood) of Rosuvastatin