A Phase I, Randomized, Single-blind, Placebo-controlled Study to Assess the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of AZD4954 Following Single and Multiple Ascending Dose Administration to Healthy Participants With or Without Elevated Lp(a) Levels, and Participants With Dyslipidemia

This is a first time in human, placebo-controlled, single and multiple ascending dose (SAD and MAD) study in healthy male and female participants (Part A) or healthy participants with elevated Lp(a) levels (≥ 30 mg/dL) and participants with dyslipidemia with elevated Lp(a) levels (≥ 70 mg/dL) and low-density lipoprotein cholesterol (LDL-C) ≥ 70 mg/dL and \< 190 mg/dL (Part B). The study consists of 2 parts: Part A (SAD) and Part B (MAD). Part A of the study will consist of Part A1 and Part A2, comprising: * A Screening Period of maximum 28 days. * Admission to study site (Day -1). * A Treat…