A Study of MT-4561 in Patients With Various Advanced Solid Tumors

This Phase I dose-finding trial is testing MT-4561, a new experimental anticancer drug, in patients with a range of advanced solid tumors that have not responded to standard treatments. **You may be eligible if...** - You are 18 or older - You have an advanced solid tumor — including lung, head and neck, esophageal, gastric, breast, ovarian, cervical, prostate, bladder, pancreatic, or other cancers — that has failed at least one prior therapy and has no other standard treatment options - You have measurable disease on scans (RECIST 1.1) - Your performance status is good (ECOG 0–1) and your organ function is adequate - Your life expectancy is at least 3 months **You may NOT be eligible if...** - You have active brain metastases - You have had recent major surgery or radiation - You have severe organ impairment - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.