Alzheimer's disease drug development pipeline: 2022 Introduction: Alzheimer's disease (AD) represents a global health crisis. Treatments are needed to prevent, delay the onset, slow the progression, improve cognition, and reduce behavioral disturbances of AD. We review the current clinical trials and drugs in development for the treatment of AD. Methods: We searched the governmental website clinicaltrials.gov where are all clinical trials conducted in the United States must be registered. We us...