Masupirdine for the Treatment of Agitation in Dementia of the Alzheimer's Type

Inclusion Criteria: * Has a diagnosis of dementia of the Alzheimer's type according to the National Institute on Aging-Alzheimer's Association (NIA-AA) criteria. * Has confirmed agitation using the IPA Consensus Provisional Definition of Agitation in Cognitive Disorders. * Has a score between 8 and 24 (both inclusive) on Mini-Mental State Examination (MMSE). Exclusion Criteria: * Participants with dementia predominantly of the non-Alzheimer's type (e.g., vascular dementia, parkinson's disease, lewy body disease, frontotemporal dementia) * Has symptoms of agitation that are not secondary to Alzheimer's disease (eg, pain, other psychiatric disorder, or delirium due to a metabolic disorder, systemic infection, or substance-induced). * Participant (or caregiver) is deemed otherwise ineligible for participation in this study in the investigator's judgement.