This is a prospective, randomized, open-label, parallel-controlled clinical trial to evaluate the efficacy and safety of targeted IL-17A inhibition with secukinumab on cardiovascular and renal endpoints in 100 patients with cardiorenal metabolic syndrome and atherosclerotic cardiovascular disease (ASCVD). Eligible subjects will be randomized 1:1 to receive either secukinumab 75 mg subcutaneous injection every 4 weeks for a total of 12 weeks plus standard guideline-directed medical therapy, or standard medical therapy alone. The primary endpoint is the time to first occurrence of 3-point major adverse cardiovascular events (MACE, including cardiovascular death, non-fatal myocardial infarction, or non-fatal stroke) over a 2-year follow-up period. Key indicators include estimated glomerular filtration rate (eGFR) and urine albumin-to-creatinine ratio (UACR) for renal outcome assessment.