Exploratory Study of the Effects of Peptide PMS-001 on Long-Delay Recall in Patients With Moderate to Severe Dementia

This is a single-center, randomized, double-blind, placebo-controlled study. Patients will be randomly assigned to either the peptide intervention group (with dose escalation at 15mg, 30mg, 60mg, and 75mg) or the placebo control group. After learning and training, participants will receive an injection of PMS-001. The efficacy and safety of the intervention will be assessed at 1 hour, 1 day, 3 days, and 1 week post-intervention. This study aims to evaluate the effects of PMS-001 on improving long-delay recall in patients with moderate to severe dementia, as well as its safety profile.