navigation ← the-world-peace-invitation-and-release-of-technology-the-2nd-international-presentation-how-to-become-axes-of-evil. Withdrawal of Life Support and Stroke Mortality. → Vandetanib Improves Progression-Free Survival in Differentiated Thyroid Cancer. Posted by zedie — 09/11/2012 0 Compared with placebo , this multikinase inhibitor nearly doubled PFS in patients with locally advanced, radioiodine-refractory differentiated disease in a phase II trial . Effective treatments have been