A Study of T3011 Administered Via Intravenously in Patients With Advanced Solid Tumors.

This is a multicenter, open-label study conducted in 3 phases: Dose escalation stage: The stage contain 4 cohorts, each cohort divided into 2 groups （group A, single dose and Group B, multiple dose）.Dose escalation will use a 3+3 design to evaluate escalating doses of T3011.Cohorts of three subjects will be enrolled at each T3011 dose level with expansion to six subjects, if necessary, to assess toxicity. Total enrollment will depend on the toxicities observed, with approximately 4-24 evaluable subjects enrolled in dose escalation stage. Dose extension stage: The SMC will evaluate the available safety and preliminary efficacy data and initiate dose-expansion studies for the appropriate indications Phase IIa: To explore the safety of intravenous administration and expand the study in other indications. the stage will be carried out gradually based on the data obtained from the phase I study.