A Study of CX11 Tablets in Patients With Type 2 Diabetes Mellitus

Inclusion Criteria Participants who meet all of the following criteria will be eligible to participate in this study: * Adults aged 18 to 75. * Diagnosis of type 2 diabetes for at least 6 months. * HbA1c between 7.0% and 10.5%. * Body mass index (BMI) between 23 and 50 kg/m². * Body weight stable for the past 3 months before joining. * Stable dose of metformin, with or without a stable dose of an SGLT2 inhibitor, for at least 3 months. * Individuals who could become pregnant or could father a child must be willing and able to use highly effective birth control. Exclusion Criteria Participants who meet any of the following criteria will be excluded from this study: * Type 1 diabetes or a history of diabetic ketoacidosis. * Use of any GLP-1 receptor agonist within the past 6 months, or any prior exposure to CX11. * Use of insulin to control blood sugar within the past 12 months. * More than one episode of severe low blood sugar, with awareness of hypoglycemia symptoms. * Cardiovascular or cerebrovascular conditions within the past 6 months: * Heart attack, coronary angioplasty, or bypass surgery (diagnostic angiography allowed). * Valvular heart disease or prior heart valve repair surgery. * Unstable angina. * Transient ischemic attack (TIA) or stroke. * Decompensated heart failure (NYHA Class III or IV). * ECG abnormalities indicating significant safety risk, such as supraventricular tachycardia, torsades de pointes, second- or third-degree AV block, myocardial infarction, QTcF \> 450 ms in males or \> 470 ms in females, PR interval \> 220 ms. * Poorly controlled hypertension at screening: systolic ≥ 180 mmHg or diastolic ≥ 100 mmHg. * Pancreatic or gallbladder conditions: * Acute or chronic pancreatitis. * Symptomatic gallbladder disease. * Pancreatic injury or risk factors that increase pancreatitis risk. * Thyroid conditions: * Poorly controlled abnormal thyroid function on a stable dose before screening. * Clinically significant abnormal thyroid test results at screening. * Personal or first-degree family history of medullary thyroid carcinoma or multiple endocrine neoplasia (MEN) type 2A or 2B. * Cancer history: * Malignancy within the past 5 years, regardless of recurrence or metastasis. Exceptions: localized basal cell skin cancer, low-risk prostate cancer, cervical carcinoma in situ, or high-grade prostatic intraepithelial neoplasia. * Gastrointestinal conditions or treatments that may affect drug absorption: * Abnormal gastric emptying (e.g., gastric outlet obstruction). * Severe chronic gastrointestinal disease, including active ulcer within 6 months. * Crohn's disease, ulcerative colitis, or other inflammatory bowel diseases. * Prior gastrointestinal surgery (except polypectomy and appendectomy). * Long-term use of drugs that directly affect gastrointestinal motility (e.g., mosapride, cisapride). * Liver disease: * Active liver disease other than nonalcoholic fatty liver. * Chronic active hepatitis B or C. * Primary biliary cirrhosis. * Eye disease: * Uncontrolled or potentially unstable diabetic retinopathy or maculopathy. * Abnormal lab results at screening: * eGFR \< 60 mL/min/1.73 m² (CKD-EPI). * ALT or AST \> 2.5 × upper limit of normal (ULN). * Total bilirubin \> 1.5 × ULN (except known Gilbert's syndrome). * Serum amylase or lipase \> 1.5 × ULN. * Fasting triglycerides \> 5.7 mmol/L. * TSH \> 1.5 × ULN. * Calcitonin ≥ 20 ng/L. * Hemoglobin \< 110 g/L (male) or \< 100 g/L (female).