Part 1 ( single dose escalation) is designed to determine the pharmacodynamics of SynOV1.1 as well as type and severity of toxicity based on safety and tolerability assessments. 3 dose level (3 × 10^11 Vp, 1 × 10^12 Vp, 3 × 10^12 Vp) will be evaluated.~Part 2 (multiple dose escalation) is designed to determine the pharmacodynamics of SynOV1.1 as well as type and severity of toxicity based on safety and tolerability assessments. Participants will receive administration bi weekly. 2 dose level will be evaluated based on part 1 result.
This is a Phase I, open-label, multicenter study to characterize safety and tolerability, evaluate biodistribution, biological effects and immunogenicity, and evaluate the preliminary clinical efficacy of SynOV1.1 in participants with AFP positive solid tumors.