A Study to Evaluate Safety and Efficacy of KarXT + KarX-EC as a Treatment for Psychosis Associated With Alzheimer's Disease (ADEPT-5)

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age55-90
SponsorBristol-Myers Squibb

About this trial

The purpose of this study is to evaluate KarXT + KarX-EC as a treatment for psychosis associated with Alzheimer's disease.

Eligibility criteria

Qualifiers

Participants must be 55 to 90 years of age, inclusive, at the time of Screening (Visit 1).

Participants must be diagnosed with Alzheimer's disease in accordance with the 2024 revised criteria for diagnosis and staging of Alzheimer's Disease: Alzheimer's Association Workgroup.

Participants must have a magnetic resonance imaging (MRI) or computed tomography (CT) scan of the brain (completed within the past 5 years) taken during or subsequent to the onset of dementia to rule out other central nervous system (CNS) disease that could account for the dementia syndrome, eg, major stroke, neoplasm, subdural hematoma.

Participants must have a history of psychotic symptoms (meeting International Psychogeriatric Association criteria) for at least 2 months prior to Screening (Visit 1) (participants may or may not have symptoms of agitation).

Disqualifiers

Participants must not have psychotic symptoms that are primarily attributable to a condition other than the AD causing the dementia, eg, schizophrenia, schizoaffective disorder, delusional disorder, or mood disorder with psychotic features.

Participants must not have history of major depressive episode with psychotic features during the 12 months prior to Screening, or history of bipolar disorder, schizophrenia, or schizoaffective disorder.

Participants must not have certain safety concerns, including certain laboratory test irregularities.

Other protocol-defined Inclusion/Exclusion criteria apply.

Trial design

Treatments tested in this trial

  • KarXT
  • KarX-EC
  • KarXT + KarX-EC Arm Matching Placebo

Treatment groups

325 Participants
are divided into 2 treatment groups

Locations

22
Australia
Local Institution - 00202113, Macquarie ParkNew South Wales, Australia
Local Institution - 00526009, NedlandsWestern Australia, Australia
Canada
Local Institution - 0054M6J1H4, TorontoOntario, Canada
Local Institution - 0027L1N 5S9, WhitbyOntario, Canada

Sponsors and collaborators

Bristol-Myers Squibb

Lead sponsor