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ACP-204 in Adults With Alzheimer's Disease Psychosis Open Label Extension Study

A 52-Week, Open-Label Extension Study of ACP-204 in Adults With Alzheimer's Disease Psychosis

Status
Enrolling by invitation
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06194799
Enrollment
752
Registered
2024-01-08
Start date
2024-04-23
Completion date
2029-05-01
Last updated
2026-08-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alzheimer's Disease Psychosis

Keywords

Alzheimer's Disease Psychosis, Hallucinations, Delusions

Brief summary

This 52-week, open-label extension study is to evaluate the long-term safety and tolerability of ACP-204 in subjects with ADP.

Interventions

ACP-204 30 mg given once daily, as capsule OR ACP-204 60 mg given once daily, as capsule

Sponsors

ACADIA Pharmaceuticals Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
55 Years to 95 Years
Healthy volunteers
No

Inclusion criteria

* Subject has successfully completed ACP-204-006 study * Male or female (age 55 to 95 years old): female must be of non-childbearing potential, male must take appropriate contraceptive method if partner has childbearing potential * Subject has a designated study partner/caregiver * Subjects are able to complete all study visits with a study partner/caregiver * Signed inform consent form with a caregiver or legal representative

Exclusion criteria

* Requires treatment with a medication prohibited by the protocol * Is in hospice and receiving end-of-life palliative care, or has become bedridden * Unstable clinically significant medical condition other than AD * Any medical condition that in the opinion of the investigator may affect safety or ability to complete the study Additional inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Treatment-emergent adverse events52 WeeksNumber of Subjects With Adverse Events (AEs), Discontinuations Due to AEs and Serious AEs (SAEs) over 52 weeks of treatment. The Safety population consists of all subjects who received at least one dose of study drug in this study.

Secondary

MeasureTime frame
Clinical Global Impression-Improvement in the ADP context (CGI-I-ADP) score52 Weeks

Countries

Brazil, Bulgaria, Chile, Czechia, France, Italy, Mexico, Serbia, South Korea, Spain, Taiwan, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 6, 2026