Study of ZGGS18 in Combination With ZG005 in Patients With Advanced Solid Tumors

This study is testing the combination of two investigational drugs — ZGGS18 and ZG005 — in people with advanced solid tumors (cancers that form a mass in an organ or tissue) that have stopped responding to standard treatments. This is an early-phase trial primarily focused on safety and the right dosing. **You may be eligible if...** - You are between 18 and 75 years old, any gender - You have an advanced solid tumor confirmed by biopsy or pathology - Your cancer has stopped responding to standard treatment or you cannot tolerate standard treatment - You understand the study and have signed informed consent **You may NOT be eligible if...** - Your cancer has spread to the brain or spinal cord (CNS metastases) - You have had another cancer within the past 5 years - The study investigator believes you are not a suitable candidate for other reasons Talk to your doctor to see if this trial is right for you.