A Phase Ia/Ib, First-in-human (FIH) Study for Safety, Tolerability, Pharmacokinetics (PK), and Clinical Activity Evaluation of ADEL-Y01

This is a Phase Ia/Ib, two-part, randomized, placebo-controlled, double-blinded, first in human(FIH) study to evaluate the safety, tolerability, PK, and PD of ADEL-Y01 in healthy participants in Part 1 and participants with MCI due to AD and mild AD in Part 2. The study includes 2 parts: Part 1 (single ascending dose \[SAD\] and Part 2 (multiple ascending dose \[MAD\]).