The study addresses the limitations of current Alzheimer's treatments, particularly donepezil and xanomeline, which cause significant gastrointestinal side effects leading to poor patient compliance.
Researchers tested donepezil, xanomeline, and a new drug called PQCA in rhesus macaques to evaluate their effects on cognition and side effects.
Results showed that while donepezil and xanomeline caused GI issues at low doses, PQCA showed no such side effects, suggesting it could be a more tolerable and effective option for improving cognitive symptoms in Alzheimer's patients.