Heterozygous Familial Hypercholesterolemia Hefh

This study is designed to learn if enlicitide decanoate is safe and effective to treat children and adolescents with heterozygous familial hypercholesterolemia (HeFH) and high amounts of low-density lipoprotein cholesterol (LDL-C) in the blood. The goals of this study are to learn about the safety of enlicitide and if children tolerate it, what happens to enlicitide in a child's body over time, and if enlicitide works to lower cholesterol levels in children more than a placebo.

This multicenter, non-randomized interventional study aims to assess coronary artery disease progression over 5 years in patients with genetically confirmed heterozygous familial hypercholesterolemia (HeFH), using coronary computed tomography angiography (CCTA). The primary endpoint is the visual evaluation of coronary stenosis using CAD-RADS v2.0, identifying changes between baseline (2018-2022) and study inclusion. The study will enroll 300 patients (100 protected, 200 non-protected) from La Pitié-Salpêtrière hospital and Saint Antoine Hospital (Paris). Participation lasts up to one week. Total study duration is 2 years, with extended follow-up through routine care data over 10 years.

This is a single-arm, open-label, multicenter, ascending dose Phase 1 trial that will enroll participants 18 to 75 years of age with dyslipidemias that are refractory to available treatments.

Heterozygous Familial Hypercholesterolemia (HeFH) is an autosomal dominant disorder characterized by markedly elevated low-density lipoprotein cholesterol (LDL-C) and increased risk of atherosclerotic cardiovascular disease (ASCVD). This trial aims to evaluate the SYH2053 Injection in patients with HeFH.

The goal of this clinical trial is to identify different types of Familial Hypercholesterolemia (FH) in infants and newborns. Participants will: * undergo a cheek swab for genetic testing (parents only) * have 5 blood samples collected Participants can expect to be in the trial for 2 years.

This Phase III clinical trial aims to assess the efficacy and safety of QLC7401 Treatment in adults with Heterozygous Familial Hypercholesterolemia on a stable lipid-lowering therapy. Participants will be randomly assigned to receive subcutaneous injections of either QLC7401 or a placebo according to the study schedule.