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Galiz Research | Hialeah, FL

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

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Karuna Therapeutics

Status and phase

Enrolling
Phase 3

Conditions

Psychosis Associated With Alzheimer's Disease

Treatments

Drug: Placebo
Drug: KarXT

Study type

Interventional

Funder types

Industry

Identifiers

NCT06126224
CN012-0027
KAR-032

Details and patient eligibility

About

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.

Enrollment

400 estimated patients

Sex

All

Ages

55 to 90 years old

Volunteers

No Healthy Volunteers

Inclusion and exclusion criteria

Key Inclusion Criteria:

  1. Is a male or female aged 55 to 90 years, inclusive, at Screening.

  2. Can understand the nature of the trial and protocol requirements and provide informed consent or assent before any study assessments are performed.

  3. Meets clinical criteria for Possible AD or Probable AD.

  4. Living at the same home or residential assisted-living facility for a minimum of 6 weeks before Screening.

  5. Have an identified study partner who should have daily contact (approximately 10 hours a week or more).

  6. History of psychotic symptoms (meeting International Psychogeriatric Association criteria) (Cummings 2020) for at least 2 months prior to Screening.

  7. CGI-S scale with a score ≥ 4 at Screening and Baseline.

  8. AD subjects are required to have NPI-C: Hallucinations and Delusions (H+D) score of ≥ 6 AND meet at least 1 of the following criteria at Screening and Baseline:

    1. Moderate to severe delusions, defined as NPI-C: Delusions domain score of ≥ 2 on 2 of the 8 items OR
    2. Moderate to severe hallucinations, defined as NPI-C: Hallucinations domain score of ≥ 2 on 2 of the 7 items
  9. MMSE score of 8 to 22, inclusive, at Screening.

Key Exclusion Criteria:

  1. Psychotic symptoms that are primarily attributable to a condition other than the AD causing the dementia.
  2. History of major depressive episode with psychotic features during the 12 months prior to Screening.
  3. History of bipolar disorder, schizophrenia, or schizoaffective disorder.
  4. Significant or severe medical conditions including pulmonary, hepatic, renal, hematologic, gastrointestinal, endocrine, immunologic, dermatologic, neurologic, cardiovascular, or oncologic disease or any other condition 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.
  5. History or high risk of urinary retention, gastric retention, or narrow-angle glaucoma as evaluated by the Investigator.
  6. Prior exposure to KarXT.
  7. History of hypersensitivity to KarXT excipients or trospium chloride.
  8. Experienced any significant adverse events (AEs) due to trospium.
  9. Participation in another clinical study in which the subject received an experimental or investigational drug within 3 months before Screening or has participated in more than 2 clinical studies in the 12 months prior to Screening.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

400 participants in 2 patient groups, including a placebo group

KarXT
Experimental group
Description:
Xanomeline and Trospium Chloride Capsules
Treatment:
Drug: KarXT
Placebo
Placebo Comparator group
Description:
Placebo Capsules
Treatment:
Drug: Placebo

Trial contacts and locations

153

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Central trial contact

First line of the email MUST contain the NCT# and Site #.; BMS Clinical Trials Contact Center www.BMSClinicalTrials.com

Data sourced from clinicaltrials.gov

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