Phase I dose-escalation study of ALN-VSP02, a novel RNAi therapeutic for solid tumors with liver involvement.
2011
3025 Background: ALN-VSP02 is a RNA interference (RNAi) therapeutic comprised of lipid nanoparticle-formulated small interfering RNAs (siRNAs) targeting the expression of vascular endothelial growth factor (VEGF)-A and kinesin spindle protein (KSP). Methods: A multi-center, open label, phase I dose-escalation trial of ALN-VSP02 administered as a 15-minute iv infusion q2 wks was initiated in patients (pts) with advanced solid tumors and at least one measurable liver lesion. Main objectives included evaluation of safety/tolerability and assessment of PK/PD. Results: Thirty-one pts were enrolled across 7 dose levels (0.1-1.5 mg/kg); median age 57 yrs, all with multiple prior therapies. A total of 140 doses were administered, mean of 4.5 (range 1-17). Treatment was generally well-tolerated, with no dose-dependent trends in clinical or laboratory adverse events. One on-study death (liver failure in a pt with near complete replacement of the liver by tumor) deemed possibly related to treatment occurred at 0.7 m...
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