This study is an open label, sequential-group, two site, multiple dose escalating study of sublingual administered asenapine in a pediatric population with schizophrenia or bipolar I disorder; in one study cohort (3a) participants with other conditions treatable with chronic antipsychotic medication can also be enrolled. Participants will receive a single sublingual placebo dose on Day -1, followed by multiple sublingual doses of asenapine twice daily (b.i.d.) for 6 days (Cohorts 1 and 2), 7 days (Cohort 3b-d), or 11 days (Cohort 3a), and a final once daily administration on Day 7 (Cohorts 1 and 2), Day 8 (Cohort 3b-d) or Day 12 (Cohort 3a).
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Maximum Plasma Concentration (Cmax) of Asenapine
Timeframe: Predose (0 hours) and 0.5, 1, 1.5, 2, 3, 4, 6, 12, 24, 36 and 48 hours after the final asenapine dose (administered on Day 7 for Cohorts 1 and 2; on Day 8 for Cohorts 3b, 3c and 3d; and on Day 12 for Cohort 3a)
Time to Maximum Plasma Concentration (Tmax) of Asenapine
Timeframe: Predose (0 hours) and 0.5, 1, 1.5, 2, 3, 4, 6, 12, 24, 36 and 48 hours after the final asenapine dose (administered on Day 7 for Cohorts 1 and 2; on Day 8 for Cohorts 3b, 3c and 3d; and on Day 12 for Cohort 3a)
Area Under the Plasma Concentration-time Curve From 0 to 12 Hours Post Dose (AUC0-12) of Asenapine
Timeframe: Predose (0 hours) and 0.5, 1, 1.5, 2, 3, 4, 6 and 12 hours after the final asenapine dose (administered on Day 7 for Cohorts 1 and 2; on Day 8 for Cohorts 3b, 3c and 3d; and on Day 12 for Cohort 3a)
Terminal Phase (Elimination) Half-life (t1/2) of Asenapine
Timeframe: Predose (0 hours) and 0.5, 1, 1.5, 2, 3, 4, 6, 12, 24, 36 and 48 hours after the final asenapine dose (administered on Day 7 for Cohorts 1 and 2; on Day 8 for Cohorts 3b, 3c and 3d; and on Day 12 for Cohort 3a)