Compositions for treatment of attention deficit hyperactivity disorder
Therapeutic compositions deliver a therapeutic amount of methylphenidate in a delayed and extended release formulation. The dosage form exhibits a lag time prior to release of from 6 to 8 hours or longer, followed by a sustained release period.
1. A method of treating a pediatric or adolescent subject having Attention Deficit Hyperactivity Disorder (ADHD), comprising:
orally administering a solid, oral pharmaceutical composition comprising a plurality of particles, each of the particles comprising:
a core comprising an effective amount of methylphenidate or a pharmaceutical salt thereof;
a sustained release layer; and
a delayed release layer;
wherein the composition comprising the plurality of particles provides at least a 6 hour lag time during which the composition releases no more than 5% of the total methylphenidate or a pharmaceutical salt thereof followed by a sustained release period with a median T max of about 12-16 hours when administered to healthy adults.
2. The method of claim 1 , wherein the composition provides at least an 8 hour lag time during which the composition releases no more than about 5% of the total methylphenidate or a pharmaceutical salt thereof.
3. The method of claim 1 , wherein the composition provides at least a 10 hour lag time during which the composition releases no more than 10% of the total methylphenidate methylphenidate or a pharmaceutical salt thereof.
4. The method of claim 1 , wherein the composition is contained in a capsule.
5. The method of claim 1 , wherein:
the administering is in the evening; and
the method provides the pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in Swanson, Kotkin, Agler, M-Flynn, and Pelham Scale (SKAMP) combined scores for a period from about 11 hours through about 23 hours after the administering in the evening.
6. The method of claim 1 , wherein:
the administering is in the evening; and
the method provides pediatric or adolescent subjects having Attention Deficit Hyperactivity Disorder (ADHD) with a significant improvement compared to a placebo in ADHD Rating Scale (ADHD-RS-IV) Total Score, Before School Functioning Questionnaire (BSFQ) score, and/or Parent Rating of Evening and Morning Behavior-Revised (PREMB-R AM) score.
7. The method of claim 1 , wherein the effective amount methylphenidate or a pharmaceutical salt thereof is 20 mg, 40 mg, 60 mg, 80 mg or 100 mg.
8. The method of claim 1 , wherein, following the lag time, the remaining methylphenidate or a pharmaceutical salt thereof that is released from the composition is released during the sustained release period.