Evaluate the Safety and Tolerability

This study is a first-in-human clinical trial of CMS-D008 conducted in Chinese healthy and overweight or obese adult participants, consisting of three parts: Part-1 Single Ascending Dose (SAD) study (hereinafter referred to as Part-1 SAD study), Part-2 Multiple Ascending Dose (MAD) study (hereinafter referred to as Part-2 MAD study), and Part-3 expansion study. The study aims to evaluate the safety, tolerability, pharmacokinetic (PK), pharmacodynamic (PD) characteristics, and immunogenicity of single and multiple subcutaneous injections of CMS-D008 injection in Chinese healthy and overweight or obese adult participants.