A Study of the Efficacy and Safety of Efsubaglutide Alfa in Overweight or Obesity Patients

This study will look at the adverse events and the change in participants' body weight from the start of the study to the end. Weight loss in participants taking Efsubaglutide Alfa will be compared to weight loss in participants taking placebo.

Inclusion criteria

• Fully understood the study, signed the informed consent.
• Male or female patients aged from 18 to 75 years at the time of signing informed consent.
• Body mass index (BMI) greater than or equal to 28 kg/sqm or greater than or equal to 24 kg/sqm with the presence of at least one of the following weight-related comorbidities: prediabetic state, hypertension, dyslipidemia, non-alcoholic steatohepatitis (NASH), obstructive sleep apnea or cardiovascular disease.
• A self-reported change in body weight less than 5% within 90 days before screening irrespective.

Exclusion criteria

• Glycated hemoglobin (HbA1c) greater than or equal to 6.5%, or previously diagnosed with type 1 diabetes or type 2 diabetes.
• Have history of clinically significant abnormal gastric emptying, severe chronic gastrointestinal diseases, long-term use of medications that directly affect gastrointestinal peristalsis, or gastrointestinal surgery within 6 months prior to screening, and deemed unsuitable for participation by the investigator.
• Have history of hyperthyroidism or hypothyroidism, or a thyroid-stimulating hormone (TSH) level below the lower limit or above 1.5 times the upper limit of the normal range.
• Calcitonin greater than or equal to 50 ng/L, or have history of medullary thyroid carcinoma, multiple endocrine neoplasia (MEN) type 2A or 2B syndrome, or a related family history.
• Any other condition that, in the judgment of the researchers, may affect the patient's ability to provide informed consent or comply with the trial protocol.