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Search / Trial NCT06159673

ACP-204 in Adults With Alzheimer's Disease Psychosis

Launched by ACADIA PHARMACEUTICALS INC. · Nov 27, 2023

Trial Information

Current as of June 28, 2025

Recruiting

Keywords

Alzheimer's Disease Psychosis Hallucinations Delusions

ClinConnect Summary

This clinical trial is studying a new medication called ACP-204 for adults with Alzheimer's Disease Psychosis (ADP), which involves experiencing confusion or delusions related to Alzheimer's disease. The trial will be conducted at multiple locations and includes three parts. The first part will test two different doses of ACP-204 (30 mg and 60 mg) to see how effective they are compared to a placebo (a pill with no active medication). If the first part shows promising results, the next two parts will further confirm the effectiveness of the doses.

To be eligible for the trial, participants need to be between 55 and 95 years old and must have a diagnosis of Alzheimer's disease with psychotic symptoms lasting at least two months. They also need to have a reliable caregiver to assist them throughout the study. Participants will go through a screening period, followed by six weeks of treatment, and then a safety follow-up to monitor their health. The trial is currently recruiting participants, and those interested should reach out to learn more about joining the study.

Gender

ALL

Eligibility criteria

  • Inclusion Criteria:
  • Is male or female and ≥55 and ≤95 years of age living in the community or in an institutionalized setting
  • Meets clinical criteria for possible or probable AD based on the 2011 National Institute on Aging-Alzheimer Association (NIA-AA) criteria
  • Meets the revised criteria for psychosis in major or mild neurocognitive disorder established by the International Psychogeriatrics Association (IPA)
  • Has either blood-based biomarker or documented evidence (e.g. positron emission tomography, cerebrospinal fluid biomarker) indicating amyloid plaque deposition and neuropathologic change consistent with AD
  • Has a prior magnetic resonance imaging or computed tomography scan of the brain that is consistent with the diagnosis of AD
  • Meets revised criteria for psychosis in major or mild neurocognitive disorder as per International Psychogeriatrics Association
  • MMSE score ≥6 and ≤24
  • Psychotic symptoms for at least 2 months
  • Lives in a stable place of residence and there are no plans to change living arrangements
  • Has a designated study partner/caregiver
  • Able to complete all study visits with a study partner/caregiver
  • Must be on a stable dose of cholinesterase inhibitor or memantine, if applicable
  • 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
  • Requires skilled nursing care
  • Psychotic symptoms that are primarily attributable to delirium, substance abuse, or a medical or psychiatric condition other than dementia
  • Known history of cerebral amyloid angiopathy, epilepsy, central nervous system neoplasm, or unexplained syncope
  • Atrial fibrillation
  • Symptomatic orthostatic hypotension
  • Protocol-defined exclusionary clinical laboratory findings
  • Treatment with anti-tau therapy or donanemab within 2 months prior to Screening
  • Additional inclusion/exclusion criteria apply. Subjects will be evaluated at screening to ensure that all criteria for study participation are met.

About Acadia Pharmaceuticals Inc.

Acadia Pharmaceuticals Inc. is a biopharmaceutical company dedicated to the development and commercialization of innovative therapies for central nervous system (CNS) disorders. With a strong focus on advancing treatments for conditions such as Parkinson's disease psychosis, schizophrenia, and other neurodegenerative diseases, Acadia leverages cutting-edge science and clinical expertise to address unmet medical needs. The company's commitment to rigorous research and patient-centric approaches aims to improve the quality of life for individuals affected by complex neurological conditions, positioning Acadia as a leader in the CNS therapeutic area.

Locations

Amherst, New York, United States

Zamora, , Spain

Taipei, , Taiwan

Paris, , France

Milano, , Italy

Toulouse, , France

Tainan, , Taiwan

Sevilla, , Spain

Rochester, New York, United States

Fresno, California, United States

Abington, Pennsylvania, United States

Miami, Florida, United States

Seoul, , Korea, Republic Of

Brno, , Czechia

Jung Gu, , Korea, Republic Of

Seoul, , Korea, Republic Of

Costa Mesa, California, United States

Toulouse Cedex 9, , France

Roma, , Italy

Centerville, Ohio, United States

Incheon, , Korea, Republic Of

Seoul, , Korea, Republic Of

Porto Alegre, , Brazil

Incheon, , Korea, Republic Of

Seoul, , Korea, Republic Of

Gangnam Gu, Seoul, Korea, Republic Of

Santiago, , Chile

Paris, , France

Kaohsiung City, , Taiwan

Belgrade, , Serbia

Kaohsiung, , Taiwan

Sofia, , Bulgaria

Beachwood, Ohio, United States

Seoul, , Korea, Republic Of

Seoul, , Korea, Republic Of

Pleven, , Bulgaria

Kragujevac, , Serbia

Miami, Florida, United States

Valjevo, , Serbia

Lincoln, Nebraska, United States

Praha 10, , Czechia

Anaheim, California, United States

Santiago, , Chile

Sofia, , Bulgaria

Brescia, , Italy

Antofagasta, , Chile

Webster, Texas, United States

New Taipei City, , Taiwan

Miami, Florida, United States

Passo Fundo, , Brazil

Seoul, , Korea, Republic Of

Miami, Florida, United States

São Paulo, , Brazil

Namdong Gu, , Korea, Republic Of

Taipei, , Taiwan

Incheon, Other, Korea, Republic Of

Miami Beach, Florida, United States

Garden Grove, California, United States

Stafford, Texas, United States

Stara Zagora, , Bulgaria

Miami, Florida, United States

West Palm Beach, Florida, United States

Miami, Florida, United States

Rio De Janeiro, , Brazil

Praha 6, , Czechia

Sofia, , Bulgaria

Houston, Texas, United States

Niš, , Serbia

Daytona Beach, Florida, United States

Tainan, , Taiwan

Elgin, Illinois, United States

Kardzhali, , Bulgaria

Miami, Florida, United States

Hialeah, Florida, United States

Bronx, New York, United States

Miami Lakes, Florida, United States

Hialeah, Florida, United States

Miami, Florida, United States

Houston, Texas, United States

Rochester Hills, Michigan, United States

Houston, Texas, United States

São Paulo, , Brazil

Cherven Bryag, , Bulgaria

Pazardzhik, , Bulgaria

Plovdiv, , Bulgaria

Sofia, , Bulgaria

Kladno, Czech Republic, Czechia

Praha, Czech Republic, Czechia

Lyon, , France

Isernia, , Italy

Salerno, , Italy

Kaohsiung City, , Taiwan

Choceň, , Czechia

São Paulo, , Brazil

Sofia, , Bulgaria

Praha 8, , Czechia

Rychnov Nad Kněžnou, , Czechia

Colmar, , France

Roma, , Italy

San Luis Potosí, , Mexico

Curitiba, , Brazil

Bron, , France

Vandœuvre Lès Nancy, , France

Kragujevac, , Serbia

Tours Cedex 9, , France

Tricase, , Italy

Belgrade, , Serbia

Novi Kneževac, , Serbia

Sombor, , Serbia

Kovin, , Serbia

Porto Alegre, , Brazil

Belgrade, , Serbia

Curitiba, , Brazil

Kragujevac, , Serbia

Roma, , Italy

Brasília, , Brazil

Torino, , Italy

Monterrey, N.L, Mexico

Coahuila, , Mexico

Estado De Mexico, , Mexico

Sinaloa, , Mexico

Santiago, , Chile

Houston, Texas, United States

Sao Bernardo Do Campo, , Brazil

Ciudad De Mexico, , Mexico

Pasadena, Texas, United States

Sinaloa, , Mexico

Miami Gardens, Florida, United States

Pasadena, Texas, United States

Patients applied

0 patients applied

Timeline

First submit

Trial launched

Trial updated

Estimated completion

Not reported