This is a 28-week study requiring a total of 3 clinic visits. Subjects will be treated with either a placebo or the study drug which will be given intranasally (inhaled through the nose).

Subjects must be between 12 and 18 years old and have a diagnosis of migraine for at least 1 year. They must have

at least 2 migraines per month but no more than 14 per month. The typical migraine must last for at least 3 hours if untreated.

Subjects will receive up to $300 for their participation. Medication and study visits are performed at no cost to the participant.