Verteporfin for the Treatment of Recurrent High Grade EGFR-Mutated Glioblastoma

PRIMARY OBJECTIVES: I. To evaluate the safety and tolerability of successively higher doses of verteporfin (Visudyne \[liposomal verteporfin\]) and determine the maximum tolerated dose (MTD) in study participants with recurrent EGFR positive (+) glioblastoma (GBM). (Phase I) II. To evaluate the anti-tumor activity of Visudyne by assessing progression-free survival (PFS) and overall survival (OS). (Phase II) III. To describe the response rate of EGFR+ GBM in study participants treated with Visudyne. (Phase II) SECONDARY OBJECTIVES: I. To evaluate the anti-tumor activity of Visudyne by assessing progression-free survival (PFS) and overall survival (OS). (Phase I) II. To describe the response rate of EGFR+ GBM in study participants treated with Visudyne. (Phase I) III. To describe pharmacokinetics of Visudyne administered on a weekly schedule. (Phase I) IV. To evaluate the safety and tolerability of successively higher doses of Visudyne in study participants with recurrent EGFR+ GBM. (Phase II) OUTLINE: This is a dose-escalation study. Patients receive verteporfin intravenously (IV) over 83 minutes weekly for 6 weeks in cycle 1, then weekly for 5 weeks in subsequent cycles. Cycles repeat every 6 weeks in the absence of disease progression or unacceptable toxicity. After completion of study treatment, patients are followed up for 30 days and then every 12 weeks.