Usability Study of the Commercial Auto-injector Device and the New Auto-injector Device (SYDNEY) in Patients With High or Very High CV Risk With Hypercholesterolemia Not Adequately Controlled With Their Lipid-Modifying Therapy

Primary Objective: To collect real-use (usability) data assessing the robustness and user interaction of the new alirocumab auto-injector device (which is referred to as SYDNEY), in unsupervised settings. Secondary Objective: Device-related: * To collect real-use (usability) data assessing the robustness and user interaction of SYDNEY and the current alirocumab auto-injector device (which is referred to as AI) in supervised settings. Pharmacokinetics: * To compare alirocumab pharmacokinetics (PK) administered using SYDNEY and AI. * To evaluate alirocumab PK administered using SYDNEY. Anti-drug antibodies: * To evaluate the development of anti-drug (alirocumab) antibodies (ADA). Efficacy/pharmacodynamics: * To compare the percent and absolute change in low-density lipoprotein cholesterol (LDL-C) using SYDNEY and AI. * To evaluate the percent and absolute change in LDL-C using SYDNEY. Safety: * To evaluate the safety and tolerability of alirocumab using both SYDNEY and AI.