Pbi-shRNA™ EWS/FLI1 Type 1 LPX in Subjects With Advanced Ewing's Sarcoma

"Lipoplex is given intravenously as a single administration twice a week for 4 weeks for a total of 8 infusions per cycle followed by 2 weeks of rest. Treatment may continue as long as there is clinical benefit, no evidence of disease progression, and no other withdrawal criteria are met.~First dose started on Cycle 1 Week 1 Day 1 followed by observation and safety assessment for 13 days. If no toxicity was observed, then another single administration of study agent was given at Cycle 1 Week 3 Day 1 followed by observation and safety for 6 days. If no toxicity was observed, then study agent was given twice a week on Days 1 and 4 over 3 weeks, for a total of 8 infusions per cycle, followed by a 2-week washout before starting each subsequent cycle. Cycle 1 = 8 weeks. Each subsequent cycles = 6 weeks."