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For the primary endpoint, both doses of ABILIFY demonstrated statistically significant improvement in symptoms when compared to placebo (p-value less than 0.0001) as measured by the mean change from baseline to endpoint (Week 4) on the Y-MRS Total Score. The efficacy of ABILIFY for the maintenance treatment of Bipolar I Disorder in the pediatric population has not been evaluated.
Approximately 80% of patients completed the four-week study (ABILIFY 10 mg: 86%; ABILIFY 30 mg: 78%; placebo: 77%). There was a low rate of discontinuation due to adverse reactions at Week 4 (ABILIFY: 7%; placebo: 2%).
During the study, the most commonly observed adverse reactions (greater than or equal to 5% in combined ABILIFY groups and at least twice the rate of placebo) associated with ABILIFY were: somnolence (ABILIFY: 23%; placebo: 3%), extrapyramidal disorder (ABILIFY: 20%; placebo: 3%), fatigue (ABILIFY: 11%; placebo: 4%), nausea (ABILIFY: 11%; placebo: 4%), akathisia (ABILIFY: 10%; placebo: 2%), blurred vision (ABILIFY: 8%; placebo: 0%), salivary hypersecretion (ABILIFY: 6%; placebo: 0%) and dizziness (ABILIFY: 5%; placebo: 1%). Four common adverse reactions had a possible dose-response relationship at Week 4: extrapyramidal disorder (ABILIFY 10 mg: 12.2%; ABILIFY 30 mg: 27.3%; placebo: 3.1%), somnolence (ABILIFY 10 mg: 19.4%; ABILIFY 30 mg: 26.3%; placebo: 3.1%), akathisia (ABILIFY 10 mg: 8.2%; ABILIFY 30 mg: 11.1%; placebo: 2.1%) and salivary hypersecretion (ABILIFY 10 mg: 3.1%; ABILIFY 30 mg: 8.1%; placebo: 0%). Children and adolescents might be more sensitive than adults in developing antipsychotic-related adverse events.(1)
In the study, weight gain greater than or equal to 7% change from
baseline was seen in 3.2%, 9.4% and 3.3% for the ABILIFY 10 mg, ABILIFY 30
mg and placebo groups, res
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