Outcome
| Type |
Measure |
Description |
Time frame |
Safety issue |
| Primary |
Latency to Sleep Onset on Maintenance of Wakefulness Test (MWT) at 2 Hours Post-infusion Start |
The MWT is a validated objective measure that evaluates a person's ability to remain awake under soporific conditions for a defined period of time. This tendency to fall asleep is measured via electroencephalography-derived sleep latency. Sleep onset is defined as the first epoch of greater than 15 seconds of cumulative sleep in a 30-second epoch. Trials were ended after 40 minutes if no sleep occurs, or after unequivocal sleep, defined as 3 consecutive epochs of stage 1 sleep, or 1 epoch of any other stage of sleep. If no sleep has been observed according to these rules, then the latency is defined as 40 minutes. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake. |
Day 1: 2 hours post-infusion start |
|
| Primary |
Latency to Sleep Onset on MWT at 4 Hours Post-infusion Start |
The MWT is a validated objective measure that evaluates a person's ability to remain awake under soporific conditions for a defined period of time. This tendency to fall asleep is measured via electroencephalography-derived sleep latency. Sleep onset is defined as the first epoch of greater than 15 seconds of cumulative sleep in a 30-second epoch. Trials were ended after 40 minutes if no sleep occurs, or after unequivocal sleep, defined as 3 consecutive epochs of stage 1 sleep, or 1 epoch of any other stage of sleep. If no sleep has been observed according to these rules, then the latency is defined as 40 minutes. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake. |
Day 1: 4 hours post-infusion start |
|
| Primary |
Latency to Sleep Onset on MWT at 6 Hours Post-infusion Start |
The MWT is a validated objective measure that evaluates a person's ability to remain awake under soporific conditions for a defined period of time. This tendency to fall asleep is measured via electroencephalography-derived sleep latency. Sleep onset is defined as the first epoch of greater than 15 seconds of cumulative sleep in a 30-second epoch. Trials were ended after 40 minutes if no sleep occurs, or after unequivocal sleep, defined as 3 consecutive epochs of stage 1 sleep, or 1 epoch of any other stage of sleep. If no sleep has been observed according to these rules, then the latency is defined as 40 minutes. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake. |
Day 1: 6 hours post-infusion start |
|
| Primary |
Latency to Sleep Onset on MWT at 8 Hours Post-infusion Start |
The MWT is a validated objective measure that evaluates a person's ability to remain awake under soporific conditions for a defined period of time. This tendency to fall asleep is measured via electroencephalography-derived sleep latency. Sleep onset is defined as the first epoch of greater than 15 seconds of cumulative sleep in a 30-second epoch. Trials were ended after 40 minutes if no sleep occurs, or after unequivocal sleep, defined as 3 consecutive epochs of stage 1 sleep, or 1 epoch of any other stage of sleep. If no sleep has been observed according to these rules, then the latency is defined as 40 minutes. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake. |
Day 1: 8 hours post-infusion start |
|
| Primary |
Latency to Sleep Onset on MWT at 1 Hour Post-end of Infusion |
The MWT is a validated objective measure that evaluates a person's ability to remain awake under soporific conditions for a defined period of time. This tendency to fall asleep is measured via electroencephalography-derived sleep latency. Sleep onset is defined as the first epoch of greater than 15 seconds of cumulative sleep in a 30-second epoch. Trials were ended after 40 minutes if no sleep occurs, or after unequivocal sleep, defined as 3 consecutive epochs of stage 1 sleep, or 1 epoch of any other stage of sleep. If no sleep has been observed according to these rules, then the latency is defined as 40 minutes. MWT sleep latency ranges from 0 to 40 minutes, with higher scores indicating greater ability to stay awake. |
Day 1: 1 hour post-end of infusion |
|
| Secondary |
AUClast: Area Under the Plasma Concentration-time Curve From Time 0 to the Time of the Last Quantifiable Concentration for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
AUC8: Area Under the Plasma Concentration-time Curve From Time 0 to Infinity for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Cmax: Maximum Observed Plasma Concentration for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Ceoi: Plasma Concentration Observed at the End of Infusion for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Tmax: Time to Reach the Maximum Plasma Concentration (Cmax) for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
T1/2z: Terminal Disposition Phase Half-life for TAK-925 and Its Metabolites M-I and M-II |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
CL: Total Clearance After Intravenous Administration for TAK-925 |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Vz: Volume of Distribution During the Terminal Disposition Phase After Intravenous Administration for TAK-925 |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Vss: Volume of Distribution at Steady State After Intravenous Administration for TAK-925 |
|
Day 1 pre-dose and at multiple time points (up to 9 hours) post-dose |
|
| Secondary |
Sleepiness on KSS |
The KSS scale measures the subjective level of sleepiness at a particular time during the day. On this scale participants indicate which level best reflects the psycho-physical state experienced in the last 10 minutes. The KSS is a 9-item Likert-type rating scale for assessing subjective sleepiness, where 1=very alert, 3=alert, 5=neither alert nor sleepy, 7=sleepy (but not fighting sleep), 9=very sleepy (fighting sleep). Lower score indicates more alertness. |
Day 1: 14, 10, 6, 2 hours pre-infusion; 2.75, 4.75, 6.75. 8.75 hours post-infusion start; 1.75 hours post-infusion end |
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