Safely Optimizing Body Weight With TCMCB07 in Patients With Newly Diagnosed Metastatic Colorectal Cancer Undergoing Chemotherapy

This study is testing whether a drug called TCMCB07 can help newly diagnosed metastatic colorectal cancer patients maintain a healthy body weight while undergoing chemotherapy. Cancer-related weight loss is a serious problem that can make treatment harder. Researchers hope this drug can safely preserve body weight and muscle mass. **You may be eligible if...** - You are 18 or older with newly diagnosed metastatic colorectal cancer and are about to start first-line chemotherapy - Your performance level is good enough to carry out daily activities with minimal limitations - Your BMI is 29 or below (not overweight/obese) - You are able to eat normally and self-inject the study drug daily - Your life expectancy is at least 9 months **You may NOT be eligible if...** - You have previously received chemotherapy for metastatic colorectal cancer - You have significant organ dysfunction - You are unable to self-inject or have a caregiver who can inject for you - You have conditions that affect your ability to eat or digest food normally Talk to your doctor to see if this trial is right for you.