A Randomized, Double-blind, Placebo-controlled Phase 3 Clinical Study to Evaluate the Efficacy and Safety of HST101 in Chinese Patients with Hypercholesterolemia
This randomized study is to assess LDL-C reductions at Week 12 with monthly (Q4W \[≤31 days\]) dosing of HST101 (lerodalcibep) 300 mg administered subcutaneously (SC) compared to placebo in patients with atherosclerotic cardiovascular disease (ASCVD) or very-high/high risk for ASCVD including Heterozygous familial hypercholesterolemia (HeFH) on a stable diet and oral LDL-C lowering drug therapy, followed by 36-week open-label treatment with subsequent 4-week follow-up for total 52-week long-term safety and efficacy evaluation.
• Provision of written and signed informed consent form prior to any study-specific procedure;
• Male or female participants ≥18 years of age at the screening visit;
• Body weight ≥ 40 kg and body mass index (BMI) ≥18 and ≤35 kg/m2;
• On a stable diet and lipid-lowering oral drugs (such as statins, ezetimibe or Hybutimibe, omega-3 compounds, fenofibrate, nicotinic acid, etc.) for at least 4 weeks prior to the first drug administration
• LDL-C≥1.8 mmol/L (70 mg/dL) and TG≤4.52 mmol/L (400 mg/dL) at screening for ASCVD patients or those at very (ultra)-high risk for ASCVD, including patients with HeFH; LDL-C ≥ 2.6 mmol/L (100 mg/dL) and TG ≤ 4.52 mmol/L (400 mg/dL) at screening for patients at high-risk for ASCVD including patients with HeFH;
• Patients on a PCSK9 mAb at a dose of 75 mg, 140 mg, or 150 mg Q2W must undergo a washout period of ≥6 weeks after the last dose; for those on 300 mg or 420 mg Q4W, the washout period is ≥10 weeks following last dose;
• Female of childbearing potential must have a negative pregnancy test at the last screening visit and consent to use highly effective contraceptives during the trial and 3 months after the last dose of investigational drug.