Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Number of Participants with Treatment Emergent Adverse Events (TEAEs) |
An adverse event is any untoward medical event that occurs in a participant administered an investigational product, and it does not necessarily indicate only events with clear causal relationship with the relevant investigational product. TEAEs are adverse events with onset during the double-blind treatment phase or that are a consequence of a preexisting condition that has worsened since baseline. |
Up to 12 weeks |
|
Primary |
Number of Participants with Adverse Event of Special Interest (AESIs) |
Number of participants with AESIs will be reported. AEs are considered to be of special interest in this study: a) Cataplexy (sudden, transient episode of muscle weakness accompanied by conscious awareness); b) Sleep paralysis (the experience of not being able to move, react, or speak when falling asleep/awakening); c) Complex, sleep-related behaviors/parasomnias such as confusional arousals, somnambulism (sleep walking), sleep terrors, bruxism (teeth grinding), sleep sex, sleep-related eating disorder, and catathrenia (REM-associated end-inspiratory apnea/breath holding); d) Any new suicidal behavior or suicidal ideation. |
Up to 12 weeks |
|
Primary |
Pediatric Adverse Event Rating Scale (PAERS) |
The PAERS is a patient-rated scale designed to assess adverse events occurring in pediatric participants treated with psychotropic medication in clinical studies. Individual PAERS (patient-reported version) will rate symptoms and severity of symptoms. This scale has a total of 48 items. There is no overall score and individual item will be rated on a scale of 0 to 4 in which 0 indicates 'not present' and 4 indicates 'very bothersome/an extreme problem'. |
Up to 12 weeks |
|
Primary |
Number of Participants with Abnormalities in Clinical Laboratory Values |
Number of participants with abnormalities in clinical laboratory values (hematology, serum chemistry and urinalysis) will be reported. |
Up to 6 weeks |
|
Primary |
Number of Participants with Abnormalities in Electrocardiogram (ECG) |
Number of participants with abnormalities in ECG will be reported. |
up to 6 weeks |
|
Primary |
Number of Participants with Abnormalities in Vital Signs |
Number of participants with abnormalities in vital sign(blood pressure and pulse/heart rate) will be reported. |
Up to 12 weeks |
|
Primary |
Number of Participants with Abnormalities in Physical Examination |
Number of participants with abnormalities in physical examination including weight will be reported. |
Up to 6 weeks |
|
Primary |
Suicidality Assessment Using the Columbia Suicide Severity Rating Scale (C-SSRS) Score |
Suicidality assessment using the C-SSRS will be reported. C-SSRS is a clinician rated assessment of suicidal behavior and/ or intent. Scale consists of 28 items in 4 sections: suicide behavior, actual attempts, suicidal ideation, and intensity of ideation. Suicidal ideation consists of 5 yes/no items: wish to be dead, non-specific active suicidal thoughts, active suicidal ideation with any methods (not plan) without intention to act, active suicidal ideation with some intent to act without specific plan, active suicidal ideation with specific plan and intent. Worsening of suicidal ideation will be an increase in severity of suicidal ideation from baseline. |
Up to 12 weeks |
|
Primary |
Withdrawal Symptoms Assessment Using the Physician Withdrawal Checklist (PWC-20) |
Withdrawal symptoms assessment using the PWC-20 will be reported. The PWC-20 is a simple and accurate method used to assess potential withdrawal symptoms following cessation of treatment. The PWC-20 is a reliable and sensitive instrument for the assessment of discontinuation symptoms. Each individual item score ranges from 0 (not present) to 3 (severe), where higher scores = more affected condition. |
2 weeks |
|
Primary |
Number of Participants with Menstrual Cycle Tracking |
Number of participants with menstrual cycle tracking will be reported. Menstrual cycles will be tracked during the study in female adolescents or participants who have at least one menses using a participant diary and participant's verbal report. |
Up to 6 weeks |
|
Secondary |
Change from Baseline to Week 6/End of Treatment (EOT) in the Children's Depression Rating Scale (CDRS) Total Score |
Change from baseline to week 6/EOT in the CDRS total score will be reported. The CDRS-R is a validated 17-item, clinician-rated instrument that measures the severity of a participant's depressive symptoms. The CDRS-R total score is the sum of the responses to 17 questions. Each question is graded on a 5- or 7-point scale. The highest possible score is 113 (the most severe measure of depression), and the lowest is 17 (not suffering from depression). |
Baseline up to 6 weeks |
|
Secondary |
Change from Baseline to Week 6 in Montgomery Asberg Depression Rating Scale (MADRS) Score |
Change from baseline in MADRS score will be reported. The 10-item MADRS is a clinician-administered scale designed to measure depression severity and detects changes due to antidepressant treatment. The test consists of 10 items, each of which is scored from 0 (item not present or normal) to 6 (severe or continuous presence of the symptoms), for a total score of 60. Higher score represents a more severe condition. |
Baseline up to 6 weeks |
|
Secondary |
Change from Baseline in Clinical Global Impression- severity (CGI-S) Score Over Time |
Change from baseline over time in the CGI-S score will be reported. The CGI-S provides an overall clinician-determined summary measure of the severity of the participant's illness. The CGI-S evaluates the severity of psychopathology on a scale of 1 to 7. Considering total clinical experience with the depression population, a participant is assessed on severity of illness at the time of rating according to: 1=normal (not at all ill); 2=borderline ill; 3=mildly ill; 4=moderately ill; 5=markedly ill; 6=severely ill; 7=among the most extremely ill participants. |
Baseline up to 6 weeks |
|
Secondary |
Change from Baseline to Week 6/EOT on Subjective Sleep Assessment (Patient Reported Outcome Measurement Information System-Pediatric-Sleep Disturbance [PROMIS-Pediatric-SD] [Short Form 8a]) |
Change from baseline to week 6/EOT on subjective sleep assessment (PROMIS-Pediatric-SD [short form 8a]) will be reported. The PROMIS-SD is used to assess self-reported perceptions of sleep quality, sleep depth and restoration associated with sleep. The full PROMIS-SD includes 27 items with each item based on a 7-day recall period and assessed on a 5 level Likert-type scale. The 8-item short form will be used in this study, in which responses are scored 1 to 5 for each item. A higher score on 5 of the 8 items reflects a worse outcome, whereas a higher score on 3 items reflects an improved outcome; therefore, the directionality of the 8 item scores is first synchronized prior to calculation of the total raw score. To find the total raw score for a short form with all questions answered, sum the values of the response to each question. Higher overall score indicates more sleep disturbance. |
Baseline up to 6 weeks |
|
Secondary |
Change from Baseline to Week 6/EOT on Objective Sleep Assessment Actigraphy |
Change from baseline to week 6/EOT on objective sleep assessment actigraphy will be reported. The primary purpose of actigraphy in this study is to have an objective measure of sleep parameters prior to treatment to complement the Consensus Sleep Diary (CSD) as well as other sleep-related PROs. |
Baseline up to 6 weeks |
|
Secondary |
Cognitive Performance on a Neurocognitive Battery at Baseline and Week 6/EOT |
The cogstate computerized cognitive battery is a validated set of assessments which will be performed to assess verbal learning and memory and evaluate cognitive function. The battery will provide assessment of multiple cognitive domains, including attention, visual learning and memory, and executive function. All measures in the cognitive battery have been validated against traditional neuropsychological tests and are sensitive to the effects of various drugs on cognitive performance, including alcohol and benzodiazepines. The participants completed Cogstate computerized cognitive battery has been used for cognitive assessment in several child and adolescent research trials including attention deficit hyperactivity disorder, and demonstrates good reliability and validity in child and adolescent populations. The ISLT has also been used in adolescent trials, demonstrating sensitivity, reliability and validity. |
Baseline, Week 6 |
|
Secondary |
Change in Subjective Sleep Related Impairment (PROMIS-Pediatric- Sleep-Related Impairment [SRI]) |
Change in subjective sleep related impairment (PROMIS-Pediatric-SRI) will be reported. The PROMIS_SRI is used to assess self reported daytime sleepiness and impact on functioning. . The full PROMIS-SD includes 27 items with each item based on a 7-day recall period and assessed on a 5 level Likert-type scale. The 8-item short form will be used in this study, in which responses are scored 1 to 5 for each item. A higher score on 5 of the 8 items reflects a worse outcome, whereas a higher score on 3 items reflects an improved outcome; therefore, the directionality of the 8 item scores is first synchronized prior to calculation of the total raw score. To find the total raw score for a short form with all questions answered, sum the values of the response to each question. Higher overall score indicates more sleep disturbance. |
Up to 6 weeks |
|
Secondary |
Plasma Concentration of Seltorexant |
Plasma concentration of seltorexant will be reported using a validated, specific, and sensitive liquid chromatography/mass spectrometry/mass spectrometry (LC-MS/MS) method. |
Up to 6 weeks |
|