This study will investigate the efficacy, safety, and tolerability of VK2809 in lowering LDL-C and liver fat content in patients with primary hypercholesterolemia and fatty liver disease. The primary efficacy endpoint is percent change from baseline LDL-C at the end of the treatment period (Week 12). Secondary endpoints include effects on liver fat content and other liver and lipid markers, as well as effects on safety and tolerability, and pharmacokinetic (PK) measurements.