A Study to Assess Efficacy and Safety of KarXT for the Treatment of Psychosis Associated With Alzheimer's Disease (ADEPT-2)

NCT06126224 · Status: RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 500

Last updated 2026-05-11

No results posted yet for this study

Summary

This is a Phase 3, randomized, double-blind, placebo-controlled, parallel group study to evaluate the safety and efficacy of KarXT in male and female subjects who are aged 55 to 90 years and have mild to severe Alzheimer's Disease (AD) with moderate to severe psychosis related to AD.

The primary objective of the study is to evaluate the efficacy of KarXT compared with placebo in the treatment of subjects with psychosis associated with AD as measured by the Neuropsychiatric Inventory-Clinician (NPI-C): Hallucinations and Delusions (H+D) score.

Conditions

  • Psychosis Associated With Alzheimer's Disease

Interventions

DRUG

KarXT

KarXT 20/2 mg (total daily dose \[TDD\] 60/6 mg) KarXT 30/3 mg (TDD 90/9 mg) KarXT 40/4 mg (TDD 120/12 mg) KarXT 50/5 mg (TDD 150/15 mg) KarXT 66.7/6.67 mg (TDD 200/20 mg)

DRUG

Placebo

Placebo capsules

Sponsors & Collaborators

  • Karuna Therapeutics, Inc., a Bristol Myers Squibb company

    lead INDUSTRY

Principal Investigators

  • Bristol-Myers Squibb · Bristol-Myers Squibb

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
55 Years
Max Age
90 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2023-08-28
Primary Completion
2026-12-09
Completion
2026-12-09
FDA Drug
Yes

Countries

  • United States
  • Belgium
  • Canada
  • Chile
  • China
  • Greece
  • Hungary
  • Mexico
  • Peru
  • Poland
  • South Korea
  • Switzerland
  • Turkey (Türkiye)
  • United Kingdom

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06126224 on ClinicalTrials.gov