•Diagnosis of type 1 diabetes, diabetes due to pancreatic injury, or specific types of diabetes due to other diseases (e.g., acromegaly or Cushing's syndrome).
•History of acute diabetic complications, such as ketoacidosis or hyperosmolar coma, within 6 months before screening.
•Presence of severe chronic diabetic complications (e.g., proliferative diabetic retinopathy, severe diabetic neuropathy, diabetic foot, etc.) within 6 months before screening, deemed by the investigator as unsuitable for participation.
•Allergic constitution (allergy to ≥2 types of drugs or foods) or keloid tendency, or clear history of drug allergy, or investigator suspects potential allergy to the investigational product or its components or similar drugs.
•Fasting plasma glucose <3.9 mmol/L at screening or before enrollment, and/or history of ≥2 episodes of severe hypoglycemia or recurrent symptomatic hypoglycemia within 6 months before screening.
•History or presence of Cushing's syndrome, polycystic ovary syndrome, or other hereditary endocrine diseases, or obesity secondary to factors such as hormones.
•Use of weight-control medications or weight-loss surgery within 3 months before screening, or weight fluctuation exceeding 5% within 3 months.
•Clinically significant abnormal TSH, FT3, or FT4 at screening, or previous diagnosis of thyroid dysfunction, deemed unsuitable by the investigator.
•Personal or family history of multiple endocrine neoplasia type 2; personal or family history of medullary thyroid carcinoma; or thyroid nodules classified as C-TIRADS category 4 or higher on ultrasound.
•History or presence of malignant tumors (except cured basal cell carcinoma or cervical carcinoma in situ).
•History of thrombotic diseases (e.g., deep vein thrombosis, pulmonary embolism, stroke), known bleeding diathesis or coagulation dysfunction, major thrombotic event within 6 months, or any coagulation parameter ≥1.5x ULN, or clinically significant abnormal coagulation function deemed unsuitable by the investigator.
•Long-term use (over 1 month) or current use of anticoagulants (e.g., warfarin, rivaroxaban, dabigatran) or antiplatelet drugs (e.g., aspirin, clopidogrel) before screening.
•Diagnosis of significant cardiovascular or cerebrovascular disease within 6 months before screening, including but not limited to acute stroke, transient ischemic attack (TIA), acute coronary syndrome, coronary heart disease, heart failure, arrhythmia requiring treatment, etc.
•History of gout or gout attack within 6 months before screening or before enrollment.
•Untreated or poorly controlled hypertension (systolic BP >160 mmHg and/or diastolic BP >100 mmHg) at screening or before enrollment. Patients on antihypertensive therapy must have a stable regimen and dose for 1 month. If BP criteria are not met at screening/enrollment, one re-test is allowed. Exclusion if both readings fail.
•Heart rate at rest (after at least 10 min) <50 bpm or >100 bpm at screening or before enrollment. One re-test is allowed. Exclusion if both readings fail.
•PR interval >210 ms and/or QRS complex duration >120 ms, and/or QTcF >450 ms at rest at screening or before enrollment. If criteria not met, repeat ECG twice on the same day; use the average of 3 measurements for judgment.
•History of clinically significant chronic or acute exacerbating respiratory diseases, including but not limited to asthma, COPD (excluding obstructive sleep apnea).
•History of severe gastrointestinal disease (e.g., active ulcer, gastroparesis, pyloric obstruction, inflammatory bowel disease) within 6 months before screening or before enrollment, or gastrointestinal surgery, or long-term use of drugs directly affecting GI motility due to chronic GI disease, deemed unsuitable by the investigator.
•Severe renal disease or estimated Glomerular Filtration Rate (eGFR) <60 mL/min/1.73m² (CKD-EPI formula) at screening or before enrollment.
•Serum amylase or lipase >3x Upper Limit of Normal (ULN) at screening or before enrollment, or history/known chronic pancreatitis, acute pancreatitis, pancreatic injury.
•History of cholelithiasis, acute or chronic cholecystitis (except those with no residual biliary stones post-treatment or post-cholecystectomy without sequelae, deemed eligible by the investigator).
•Severe dyslipidemia, with LDL-C ≥4.40 mmol/L or triglycerides (TG) ≥5.65 mmol/L at screening or before enrollment. If on lipid-lowering therapy, regimen and dose must be stable for 1 month.
•Clear history of psychiatric disorders (e.g., depression, schizophrenia, bipolar disorder) within 2 years before screening.
•Major surgery within 1 month before screening, or presence of severe infection or active inflammation.
•History of blood donation >400 mL, transfusion, or blood loss within 90 days before screening or before enrollment.
•Any of the following laboratory abnormalities at screening or before enrollment: 1. ALT or AST >2x ULN; 2. Total Bilirubin >1.5x ULN; 3. Calcitonin ≥35 pg/mL; 4. Hemoglobin <110 g/L (female) or <120 g/L (male); 5. Clinically significant abnormal platelet count; 6. Clinically significant abnormal white blood cell or neutrophil count;
•Use of any approved or unapproved weight-affecting drugs or products within 3 months before screening, including but not limited to orlistat, phentermine-topiramate, naltrexone-bupropion, systemic corticosteroids, antidepressants (SSRIs, SNRIs, tricyclics, tetracyclics), antipsychotics/sedatives (e.g., imipramine, amitriptyline, mirtazapine, paroxetine, phenelzine, chlorpromazine, thioridazine, clozapine, olanzapine, valproic acid, lithium), etc.
•Use of any DPP-4 inhibitor, or GLP-1, GIP, GCG receptor agonists, or FGF-21 within 6 months before screening.
•History of bariatric surgery (except liposuction/abdominoplasty >1 year prior).
•Participation in any drug or medical device clinical trial within 3 months before screening or before enrollment (except screen failures).
•Positive serology for HBsAg, anti-HCV antibody, anti-TP antibody, or anti-HIV antibody at screening.
•History of drug abuse and/or alcoholism (weekly alcohol intake >14 units) within 6 months before screening
•Positive urine drug screen or alcohol breath test at screening.
•Pregnant or lactating females, or subjects using oral contraceptives.
•Intolerance to venipuncture or history of needle syncope, blood-injury syncope.
•Any other physiological, psychological, or situational condition deemed by the investigator as unsuitable for trial participation.
