A Phase I, Randomized, Single-blind, Placebo-controlled, 2-Part Study to Assess the Safety, Tolerability, and Pharmacokinetics of AZD4916 Following Single- and Multiple-ascending-dose Administration to Healthy Adult Volunteers (Including Japanese and Chinese Healthy Volunteers)

Main Inclusion Criteria: * Healthy male and female participants with suitable veins for cannulation or repeated venipuncture. * All females must have negative pregnancy test and females of childbearing potential must not be lactating and must agree to use an approved method of highly effective contraception. * Have a Body Mass Index between 18 and 30 kg/m2 inclusive and weigh at least 45 kg at Screening. * Part 2, Japanese participants only: Japanese participants must have been born in Japan, have 2 Japanese biological parents and 4 Japanese grandparents (as confirmed by the interview), and m…