Phase 2, Efficacy and Safety Study of ACP-204 in Lewy Body Dementia Psychosis

NCT ID: NCT07029581

Last Updated: 2025-12-26

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

180 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-08-06

Study Completion Date

2028-03-31

Brief Summary

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Multicenter, randomized, 6-week, double-blind, placebo-controlled, parallel-group, Phase 2 study in subjects with LBDP.

Detailed Description

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Conditions

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Lewy Body Dementia Psychosis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Subjects will be randomized to one of 3 parallel arms i.e. ACP-204 at one of 2 dose levels (30 or 60 mg) or placebo
Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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ACP-204 30 mg

ACP-204 dose of 30 mg once daily

Group Type EXPERIMENTAL

ACP-204

Intervention Type DRUG

Provided as 1 capsule, to be taken orally once daily

ACP-204 60 mg

ACP-204 dose of 60 mg once daily

Group Type EXPERIMENTAL

ACP-204

Intervention Type DRUG

Provided as 1 capsule, to be taken orally once daily

Placebo

Placebo once daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Provided as 1 capsule, to be taken orally once daily

Interventions

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ACP-204

Provided as 1 capsule, to be taken orally once daily

Intervention Type DRUG

Placebo

Provided as 1 capsule, to be taken orally once daily

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Male or female ≥55 years to \<85 years of age at the Screening visit living in the community or, if permitted by local regulations, in an institutionalized setting
* Can provide written informed consent. If the subject is deemed not competent to provide informed consent, the following requirements for consent must be met:

1. The subject's LAR must provide written informed consent.
2. The subject must provide written (if capable) informed assent per local regulations.
* Meets either the clinical criteria for Parkinson's disease with dementia as defined by the Movement Disorder Society's Task Force or the revised clinical criteria for probable dementia with Lewy bodies (DLB) by consensus criteria (Fourth consensus report of the DLB Consortium).
* Meets the revised criteria for psychosis in major or mild neurocognitive disorder established by the International Psychogeriatrics Association

Exclusion Criteria

* Is in hospice, is receiving end-of-life palliative care, or is bedridden
* Has psychotic symptoms that are primarily attributable to delirium, substance abuse, or a medical or psychiatric condition (e.g. schizophrenia, bipolar disorder, delusional disorder) other than dementia
* Is actively suicidal at Visit 1 (Screening) or Visit 2 (Baseline)
* Has a history or current evidence of a serious and/or significant unstable cardiovascular, respiratory, endocrine, gastrointestinal, renal, hepatic, hematologic, immunologic, genitourinary, psychiatric or neurologic (including stroke, chronic seizures, or clinically significant head injury) abnormality or disease or other medical disorder, including cancer or malignancies that could interfere with subject's ability to complete the study or comply with study procedures
* Has other clinically significant CNS abnormalities that are most likely contributing to the dementia or findings on MRI or CT
Minimum Eligible Age

55 Years

Maximum Eligible Age

84 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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ACADIA Pharmaceuticals Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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ATP Clinical Research Inc.

Irvine, California, United States

Site Status RECRUITING

Humanity Clinical Research, Corp

Aventura, Florida, United States

Site Status RECRUITING

Parkinson's Disease and Movement Disorders Center of Boca Raton

Boca Raton, Florida, United States

Site Status RECRUITING

K2 Medical Research Winter Garden LLC

Clermont, Florida, United States

Site Status RECRUITING

K2 Summit Research

Lady Lake, Florida, United States

Site Status RECRUITING

Neurology Associates, P. A.

Maitland, Florida, United States

Site Status RECRUITING

Homestead Associates in Research Inc

Miami, Florida, United States

Site Status RECRUITING

Premier Clinical Research Institute, Inc.

Miami, Florida, United States

Site Status RECRUITING

Advanced Clinical Research Network, Corp

Miami, Florida, United States

Site Status RECRUITING

MediClear Medical & Research Center, Inc.

Miami, Florida, United States

Site Status RECRUITING

Health Synergy Clinical Research, LLC

West Palm Beach, Florida, United States

Site Status RECRUITING

Hawaii Pacific Neuroscience

Honolulu, Hawaii, United States

Site Status RECRUITING

University of Kansas Medical Center Research Institute Inc.

Kansas City, Kansas, United States

Site Status RECRUITING

Parkinson's Disease and Movement Disorders Center of Boca Raton d/b/a Parkinson's Research Center of America-Long Island

Commack, New York, United States

Site Status RECRUITING

The Ohio State University, Energy Advancement and Innovation Center

Columbus, Ohio, United States

Site Status RECRUITING

The Movement Disorder Clinic of Oklahoma

Tulsa, Oklahoma, United States

Site Status RECRUITING

Abington Neurological Associates, LTD

Abington, Pennsylvania, United States

Site Status SUSPENDED

Horizon Clinical Research Group

Cypress, Texas, United States

Site Status RECRUITING

The University of Texas Health Science Center San Antonio

San Antonio, Texas, United States

Site Status RECRUITING

R and H Clinical Research

Stafford, Texas, United States

Site Status RECRUITING

Virginia Commonwealth University (a public institution of higher education)

Richmond, Virginia, United States

Site Status RECRUITING

Ambulatory for Individual Practice for Specialized Medical Care in Psychiatry - Dr Ivo Natsov

Cherven Bryag, , Bulgaria

Site Status RECRUITING

UMHAT Sv Georgi EAD

Plovdiv, , Bulgaria

Site Status RECRUITING

Medical Center SV.Naum

Sofia, , Bulgaria

Site Status RECRUITING

DCC Mladost M- Varna, OOD

Varna, , Bulgaria

Site Status RECRUITING

NEUROHK s.r.o. Poliklinika Chocen a.s.

Choceň, , Czechia

Site Status RECRUITING

Vestra Clinics s.r.o

Rychnov nad Kněžnou, , Czechia

Site Status RECRUITING

Countries

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United States Bulgaria Czechia

Central Contacts

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Kristin Kidd

Role: CONTACT

Phone: 434-841-3162

Email: [email protected]

Becky Howell

Role: CONTACT

Phone: 848-702-1886

Email: [email protected]

Other Identifiers

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2025-521710-25-00

Identifier Type: CTIS

Identifier Source: secondary_id

ACP-204-012

Identifier Type: -

Identifier Source: org_study_id