Quantity & quality of bowel movements (e.g., change in/increased frequency over baseline): solid, soft, or liquid diarrhea; dark or bloody stools; or stools that float
Fever
Abdominal pain or cramping
Increased fatigue
Upset stomach, nausea, or vomiting
Bloating/increased gas
Decreased appetite or food aversions
Serum chemistry/hematology abnormalities
Infectious vs immune-related adverse event causation
Peritoneal signs of bowel perforation (i.e., pain, tenderness, bloating)