HRS-4642 Combination With Other Antitumor Therapies in Patients With Solid Tumors

This study tests a drug called HRS-4642 in combination with other cancer-fighting therapies in patients with advanced solid tumors, particularly pancreatic cancer, that cannot be removed with surgery. **You may be eligible if...** - You are between 18 and 75 years old - You are in good physical condition (ECOG score 0 or 1) - You have advanced or metastatic pancreatic cancer that is not surgically removable - Your life expectancy is at least 12 weeks - Your organ function meets the required levels **You may NOT be eligible if...** - You have had recent major surgery - You have active brain metastases (cancer in the brain) - You have significant heart problems - You are pregnant or breastfeeding - You are currently enrolled in another clinical trial Talk to your doctor to see if this trial is right for you.