Infusion of 5-Azacytidine (5-AZA) Into the Fourth Ventricle in Patients With Recurrent Posterior Fossa Ependymoma

"5-AZA (12 mg) will be prepared in preservative-free normal saline to a total volume of 1.2ml. 5-AZA will be infused over a minimum of 30 seconds. 5-AZA will be followed by a 1 ml preservative-free normal saline flush over a minimum of 30 seconds.~Patients will receive two, three, or four 5-AZA infusions per week depending on the dosing algorithm (see below). We refer to these dosing schedules as dose 1, 2, or 3.~Patients assigned to dose 1 will receive two 5-AZA infusions per week (typically Monday and Thursday but may be given on other days based upon logistical considerations) for 8 consecutive weeks."

"5-AZA (12 mg) will be prepared in preservative-free normal saline to a total volume of 1.2ml. 5-AZA will be infused over a minimum of 30 seconds. 5-AZA will be followed by a 1 ml preservative-free normal saline flush over a minimum of 30 seconds.~Patients will receive two, three, or four 5-AZA infusions per week depending on the dosing algorithm (see below). We refer to these dosing schedules as dose 1, 2, or 3.~Patients assigned to dose 2 will receive three 5-AZA infusions per week (typically Monday, Wednesday, and Friday but may be given on other days based upon logistical considerations) for 8 consecutive weeks."

"5-AZA (12 mg) will be prepared in preservative-free normal saline to a total volume of 1.2ml. 5-AZA will be infused over a minimum of 30 seconds. 5-AZA will be followed by a 1 ml preservative-free normal saline flush over a minimum of 30 seconds.~Patients will receive two, three, or four 5-AZA infusions per week depending on the dosing algorithm (see below). We refer to these dosing schedules as dose 1, 2, or 3.~Patients assigned to dose 3 will receive four 5-AZA infusions per week (on any 4 weekdays based upon logistical considerations) for 8 consecutive weeks."