The most common ( 5 % frequency in the total group ) AEs were increased appetite ( 11 % [ n = 9 ] ) ; increased weight and vomiting ( 9 % [ n = 7 ] each ) ; sedation , pyrexia , and upper respiratory tract infection ( 8 % [ n = 6 ] each ) ; nasopharyngitis ( 6 % [ n = 5 ] ) ; and somnolence and fatigue ( 5 % [ n = 4 ] each ) .