Randomized, Placebo-Controlled, Double-Blind, Phase 3b Study to Evaluate the Efficacy and Safety of Lerodalcibep in Children 6 to 17 Years, With Heterozygous FH

The goal of this clinical trial is to assess the LDL-Cholesterol reductions at Week 12 and Week 24 with monthly dosing of lerodalcibep (Lerochol) 300 mg administered subcutaneously by auto-injector (AI)/pre-filled pen (PFP) compared to placebo (dummy), in male and female pediatric patients 6 to 17 years of age, with inherited high cholesterol (HeFH) on a stable diet and maximally tolerated oral LDL C lowering drug therapy such as statins. The main question\[s\] it aims to answer are: How effective is Lerochol in reducing LDL cholesterol? How well is it tolerated and are there any safety concerns? Researchers will compare Lerochol to placebo (inert or dummy injection solution). Participants will visit the clinic every month for months and be asked to fast overnight, but allowed to drink water, before clinic visits. Undergo physical exams, height and weight measurements, answer questions, have blood drawn from a vein in their arm, have blood pressure measurements, EKC heart tests, and receive monthly injections lasting about 5 seconds in their arms or abdomen with an autoinjector.