Study will consist of three periods:~Screening (up to 28 days)~Treatment (28-day, 14-day, or 21-day cycles)~Follow-up (up to 3 months) The treatment period will consist of 28-day cycles for the dose escalation phase, and 14-day (Cohorts B1, B2 reserve, and B3) or 21-day (Cohort B2) cycles for the dose expansion phase. Each cycle is comprised of two doses of IP administered as an IV infusion on Days 1 and 15 (dose escalation phase) or one dose of IP administered as an IV infusion on Day 1 (dose expansion phase). The treatment duration will be of 1 year in patients who are responding to the treatment.~Dose Escalation:~An accelerated titration design will be utilized for the lowest dose cohort (0.5 mg/kg) in the dose escalation part. Whereas the traditional 3 + 3 design will be utilized for the higher dose cohorts until the proposed starting dose for the Expansion Cohort is determined~Expansion Cohorts:~Up to four tumor-specific expansion cohorts consisting of approximately 39 to 76 participants will evaluate the safety, efficacy, PK, and PD of YBL-006 at the proposed doses of YBL-006
This is a Phase 1/2a, open-label, multicenter, dose-escalation/dose-expansion study of YBL-006, in participants with Advanced Solid Tumors. This multicenter study will be conducted in approximately 11-14 participants in the dose escalation phase, and approximately 39-76 participants in dose expansion phase.