Everolimus (RAD001) Therapy of Giant Cell Astrocytoma in Patients With Tuberous Sclerosis Complex

Initial everolimus dosage will be 3 mg/m2/d taken daily or every other day, with titration to achieve a trough serum level of 5-15 ng/ml. Patients unable to tolerate levels in this range will have doses held or reduced 25% to achieve trough serum levels of 5-10 ng/ml. If trough serum level of 5-15 ng/ml is not achieved at a dosage of 3 mg/m2/d, then dosage escalation by 25% will be undertaken as tolerated. Everolimus will be similarly adjusted during the extension phase. If a subject misses more than 10 consecutive everolimus doses, additional days of everolimus treatment will be added so total duration of treatment is 6 months. If this occurs, dates of subsequent study events will be adjusted according to number of missed doses. This process will also be followed in the extension phase.