Kaplan-Meier survival analysis for mice administered a single intravenous injection of GNE-lipoplex. Mice were administered a single intravenous injection of 0 μg, 10 μg, 40 μg, or 100 μg GNE-lipoplex. Survival was observed over 2 weeks. Four of 12 mice in 100 μg GNE-lipoplex cohort died within 24 hours after injection. The remaining eight mice in the 100 μg GNE-lipoplex cohort and 2 mice in 40 μg GNE-lipoplex cohort showed acute toxicity (ruffled coat, hunched posture) within 24 hr of IV injection, but recovered within 48 hours and survived for 2 weeks.