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RecruitingPsychosis Associated With Alzheimer's Disease

Open-Label Extension Study to Assess the Long-Term Safety and Tolerability of KarXT in Subjects With Psychosis Associated With Alzheimer's Disease (ADEPT-3)

Eligible age

55–90 yrs

Accepts

All genders

Locations

24 states

Healthy volunteers

No

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About this study

This is a Phase 3 global, multicenter, 52-week, open-label extension (OLE) rollover study for subjects completing study CN012-0026, CN012-0027 or CN012-0056. Subjects (randomized or non-randomized) who complete the 38-week CN012-0026 study, 14-week CN012-0027 study or 14-week CN012-0056 study will be eligible to enroll in CN012-0028. The primary objective of the study is to assess the long-term safety and tolerability of KarXT in subjects with psychosis associated with Alzheimer's Disease.

Sponsor: Karuna Therapeutics, Inc., a Bristol Myers Squibb company

You may qualify if…

  • Must have completed study KAR-031 (CN012-0026), KAR-032(CN012-0027), or CN012-0056. This Inclusion criterion is not applicable for Protocol Amendment 07 or later versions.
  • Can understand the nature of the study and protocol requirements and provide a signed informed consent (IC) form before any study assessments are performed. If the subject is deemed not competent to provide IC, both the following requirements for consent must be met:
  • 1. The subject's legally acceptable representative (LAR) must provide IC
  • 2. The subject must provide informed assent
  • Must have stable living environment. At entry into this study, or any time during the study, if a subject needs to relocate from home, a residential assisted-living facility, or other stable location to a nursing home facility, the Sponsor/Medical Monitor must approve the subject's participation in the study.

You may not qualify if…

  • Significant or severe medical conditions that, in the opinion of the Investigator, could jeopardize the safety of the subject, ability to complete or comply with the study procedures or validity of the study results.
  • Clinically significant abnormalities, including any finding(s) from the ECG, laboratory tests, physical examination, or vital signs, at the EOT visit of Study KAR-031 (Visit 19), Study KAR-032 (Visit 12), Study CN012-0056 (Visit 12) that the Investigator, in consultation with the Medical Monitor, are considered to jeopardize the safety of the subject.
  • Subjects participating in another investigational drug or device study or planning on participating in another clinical study during the duration of KAR-033.
  • Other protocol-defined Inclusion/Exclusion criteria apply.

Where it's recruiting

Alabama

Homewood

Arizona

Chandler · Gilbert · Phoenix · Scottsdale

California

Anaheim · Chino · Costa Mesa · Encino

Colorado

Colorado Springs

Connecticut

Farmington · Stamford

Florida

Atlantis · Boca Raton · Bonita Springs · Bradenton

Georgia

Atlanta · Decatur

Illinois

Berwyn · Elgin

Louisiana

Marrero

Massachusetts

Belmont · Boston · North Dartmouth · Springfield

Michigan

Bloomfield Township · Rochester Hills

Source: ClinicalTrials.gov · NCT05980949 · last updated 2026-07-06

Open-Label Extension Study to Assess the Long-Term Safety and Tolerabi · TrialPath