A Study of XW003 in Obese Participants With Obstructive Sleep Apnea But Not Receive Positive Airway Pressure Therapy

Inclusion Criteria: 1. Body mass index (BMI) ≥ 28.0 kg/m2; 2. The results of PSG meet the diagnosis criteria of OSA and with an AHI ≥15 at screening; 3. Participants must not have used PAP for at least 4 weeks prior to screening and not use PAP during the study; 4. Have a history of at least 1 self-reported unsuccessful dietary effort to lose body weight. Exclusion Criteria: 1. History of endocrine disorders which have significant impact on body weight; 2. Diagnosis of diabetes (except gestational diabetes), ketoacidosis or hypertonic state/coma; 3. HbA1c ≥6.5% at screening; 4. Fasting blood glucose ≥7.0 mmol/L or 2-hour blood glucose ≥11.1 mmol/L after oral glucose tolerance test (OGTT) at screening; participants with FBG ≥6.1 mmol/L but \<7.0 mmol/L require OGTT; 5. Have diagnosis of Cheyne Stokes Respiration, or diagnosis of Central or Mixed Sleep Apnea with % of mixed or central apneas/hypopneas ≥50%; 6. Respiratory and neuromuscular diseases that could interfere with the results of the trial; 7. Diagnosis of Obesity Hypoventilation Syndrome or daytime hypercapnia; 8. Change of body weight \>5% within 3 months prior to screening (self-reported); 9. Have a prior or planned surgical treatment for obesity (except liposuction or abdominoplasty if performed more than 1 year prior to screening); 10. Have received any medication for body weight loss and blood glucose lowering or medication that could lead to significant body weight increase, within 3 months prior to screening.