Insomnia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Be male or female (of nonchildbearing potential) aged 50 to 80 years, inclusive, at the Screening Visit. 2. Have a body mass index *18.5 and *30.0 kg/m2 at the Screening Visit. 3. Be judged to be in good health by the investigator, based on clinical evaluations including laboratory safety tests, medical history, physical examination and vital sign measurements performed at the screening visit and before the first dose of study drug.
Exclusion criteria
Exclusion criteria: 1. Pregnant or lactating women. 2. Known hypersensitivity to ACT-541468, zopiclone, or treatments of the same class, or any of their excipients. 3. Unstable medical condition, significant medical disorder, or acute illness within 2 months prior to Screening. 4. Current heavy tobacco user (* 15 cigarettes per day) or smoker with an urge to wake up during the night to smoke. 5. No history of narcolepsy, cataplexy or fainting. 6. Mini Mental State Examination (MMSE) score
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Driving performance as measured by the SDLP (difference from placebo, cm) on Day 2 and 5 at 9 h post dose following administration of ACT-541468. | — |
Secondary
| Measure | Time frame |
|---|---|
| Effects of ACT-541468 on Days 2 and 5 on other driving performance parameters 9 h post dose: - Mean lateral position (MLP). - Mean speed (MS). - SD of the mean speed (SDMS). - Number of lapses (lapses are short periods of inattention and reduced alertness which may be a risk factor for car crashes. A lapse is defined as change from the steady lateral position of * 100 cm for * 4 s.) - Drive safety score (DSS), a 24-item composite safety score. - Subjective driving performance and effort scale. Safety endpoints: - Treatment-emergent AEs from study treatment administration up to EOT in each treatment period. - Treatment-emergent SAEs from study treatment administration up to EOT in each treatment period. | — |
Countries
Netherlands