A Study to Evaluate Different Administration Conditions and the Food Effect of MWN109 Tablets in Chinese Participants

Inclusion Criteria: 1. Male or female participants aged 18 to 50 years, inclusive, at the time of signing the informed consent form. 2. Body mass index (BMI) = weight (kg) / height squared (m²): 19.0 kg/m² ≤ BMI \< 30.0 kg/m², with a body weight ≥ 55 kg for males or ≥ 50 kg for females. Exclusion Criteria: 1. History of severe drug allergy (especially known or suspected allergy to any component or excipient of MWN109 tablets), severe atopic allergic disease/history (e.g., asthma, urticaria, eczematous dermatitis), or a severe allergic constitution. 2. History of acute or chronic pancreatitis, symptomatic gallbladder disease, pancreatic injury, or other high-risk factors that may lead to pancreatitis. 3. History or family history of medullary thyroid carcinoma or multiple endocrine neoplasia syndrome type 2; history of thyroid insufficiency or abnormal thyroid hormone levels. 4. Gastrointestinal diseases at present or at screening that may increase participant risk, such as abnormal gastric emptying (e.g., gastroparesis, pyloric stenosis, pyloric obstruction), severe chronic gastrointestinal diseases (e.g., history of intestinal obstruction, active ulcer within 6 months), previous gastric resection surgery, or gastrointestinal clinical symptoms or signs at screening (e.g., diarrhea, constipation, nausea, vomiting, irregular bowel movements, or alternating diarrhea and constipation) (diarrhea is defined as watery stools and/or ≥ 3 bowel movements per day; constipation is defined as the inability to achieve a bowel movement at least every other day). 5. History of any of the following cardiac diseases within 6 months prior to screening: decompensated cardiac insufficiency (New York Heart Association \[NYHA\] class III or IV); unstable angina, myocardial infarction, coronary artery bypass grafting, or coronary stent implantation. 6. Hemorrhagic or ischemic stroke within 6 months prior to screening, if judged by the investigator to be unsuitable for participation in this clinical trial. 7. Severe hypoglycemia or recurrent symptomatic hypoglycemia (≥ 2 episodes within 6 months) within 6 months prior to screening (e.g., anxiety, dizziness, sweating, tremor, hunger, and poor concentration). 8. Any laboratory finding at screening meeting any of the following criteria: 1. glycated hemoglobin (HbA1c) ≥ 6.5%, or fasting blood glucose (GLU) \> 6.1 mmol/L or \< 3.9 mmol/L. 2. alanine aminotransferase (ALT), aspartate aminotransferase (AST), or total bilirubin (TBIL) \> 1.5 times the upper limit of normal (ULN). 3. serum creatinine (CR) \> 1.1 times ULN, or estimated glomerular filtration rate (eGFR) \< 80 mL/min/1.73 m2 (CKD-EPI formula), or urine protein (PRO) positive (1+) or above. 4. serum uric acid (UA) \> 540 μmol/L. 5. serum calcitonin (PCT) ≥ 35 ng/L. 6. thyroid-stimulating hormone (TSH) \> 6.0 mIU/L or below the lower limit of normal (LLN). 7. fasting triglycerides (TG) ≥ 3.42 mmol/L. 8. amylase (AMY) \> 1.5 times ULN. 9. hemoglobin (HGB) \< 100 g/L (female) or \< 110 g/L (male). 10. positive for hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV-Ab), human immunodeficiency virus antibody (HIV-Ab), or Treponema pallidum antibody (TPAb). 11. 12-lead electrocardiogram (ECG) showing heart rate \< 50 beats/min or \> 90 beats/min, second- or third-degree atrioventricular block, long QT syndrome, or QTcF \> 470 ms (female) or \> 450 ms (male), or other ECG abnormalities judged by the investigator to require drug intervention. 12. positive urine drug abuse screening. 13. positive alcohol breath test. 9. Participation in any drug or medical device clinical trial and receipt of investigational drug or medical device intervention within 3 months prior to screening. 10. Use of any prescription or over-the-counter medication (including chemical drugs, vitamins, herbal medicines, etc.) within 2 weeks prior to dosing. 11. Smoking more than 10 cigarettes per day (including nicotine replacement products) within 3 months prior to screening, or inability to refrain from smoking during the confinement period. 12. Regular alcohol consumption within 3 months prior to screening, i.e., average weekly alcohol intake greater than 14 units of alcohol (1 unit = 17.7 mL of ethanol, i.e., 1 unit = 357 mL of beer with 5% alcohol, or 43 mL of liquor with 40% alcohol, or 147 mL of wine with 12% alcohol), or inability to abstain from alcohol during the trial.