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A Study of the Safety and Efficacy of Pimavanserin in Patients With Alzheimer's Disease Psychosis

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
ClinicalTrials.gov Identifier: NCT02035553
Recruitment Status : Completed
First Posted : January 14, 2014
Results First Posted : October 25, 2017
Last Update Posted : October 25, 2017
Information provided by (Responsible Party):
ACADIA Pharmaceuticals Inc.

Tracking Information
First Submitted Date  ICMJE January 13, 2014
First Posted Date  ICMJE January 14, 2014
Results First Submitted Date  ICMJE September 28, 2017
Results First Posted Date  ICMJE October 25, 2017
Last Update Posted Date October 25, 2017
Study Start Date  ICMJE November 2013
Actual Primary Completion Date September 28, 2016   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: September 28, 2017)
Antipsychotic Efficacy [ Time Frame: Day 43 ]
Change from Baseline to Day 43 in the Neuropsychiatric Inventory-Nursing Home Version (NPI-NH) psychosis score (Delusions [Domain A]+Hallucinations [Domain B]) in the Full Analysis Set (FAS). The NPI-NH is a questionnaire that quantifies behavioral changes in dementia in nursing home patients and evaluates 12 behavioral domains. For each of the 12 behavioral domains the Frequency (scale:1=occasionally to 4=very frequently) is multiplied by the Severity (scale:1=Mild to 3=Severe) to obtain a domain score (frequency x severity), The NPI-NH Psychosis Subscale consists of the two domains of Delusions and Hallucinations, calculated by adding the Individual domain scores, to yield a possible total score of 0 to 24. Lower scores correspond to less severity. A negative change score from baseline indicates improvement.
Original Primary Outcome Measures  ICMJE
 (submitted: January 13, 2014)
Efficacy will be assessed using the Neuropsychiatric Inventory - Nursing Home Version, the Cohen-Mansfield Agitation Inventory - Short Form, and the Alzheimer's Disease Cooperative Study - Clinical Global Impression of Change. [ Time Frame: 12 weeks ]
Change History
Current Secondary Outcome Measures  ICMJE Not Provided
Original Secondary Outcome Measures  ICMJE Not Provided
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
Descriptive Information
Brief Title  ICMJE A Study of the Safety and Efficacy of Pimavanserin in Patients With Alzheimer's Disease Psychosis
Official Title  ICMJE A Single Center, Double-Blind, Placebo-Controlled Study to Examine the Safety and Efficacy of Pimavanserin for the Treatment of Psychosis in Alzheimer's Disease
Brief Summary This study will evaluate the safety and efficacy of pimavanserin 40 mg compared to placebo in patients with Alzheimer's disease psychosis.
Detailed Description Not Provided
Study Type  ICMJE Interventional
Study Phase  ICMJE Phase 2
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Condition  ICMJE Alzheimer's Disease Psychosis
Intervention  ICMJE
  • Drug: Pimavanserin tartrate
    Pimavanserin tartrate, 40 mg (two 20 mg tablets), once daily by mouth (equivalent to 34 mg free base pimavanserin)
    Other Name: ACP-103
  • Drug: Placebo
    Placebo, two tablets, once daily by mouth
Study Arms  ICMJE
  • Placebo Comparator: Placebo
    Placebo, two tablets, once daily by mouth
    Intervention: Drug: Placebo
  • Experimental: Pimavanserin 40 mg
    Pimavanserin tartrate, 40 mg (two 20 mg tablets), once daily by mouth (equivalent to 34 mg free base pimavanserin)
    Intervention: Drug: Pimavanserin tartrate
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
Recruitment Information
Recruitment Status  ICMJE Completed
Actual Enrollment  ICMJE
 (submitted: July 29, 2016)
Original Estimated Enrollment  ICMJE
 (submitted: January 13, 2014)
Actual Study Completion Date  ICMJE October 27, 2016
Actual Primary Completion Date September 28, 2016   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE

Inclusion Criteria:

  • Patient must be 50 years of age or older with NINCDS-ADRDA defined possible or probable AD
  • Patient must have psychotic symptoms that developed after the diagnosis of AD was established. These symptoms must include visual and/or auditory hallucinations, and/or delusions
  • Patient must have been a nursing home resident for ≥ 4 weeks prior to randomization, not bedridden and expected to remain in the facility throughout the study
  • Patient must have actively experienced and verbally communicated psychotic symptoms during the month prior to the Screening visit and weekly during the previous 2 weeks prior to Baseline
  • If patient is on acetylcholinesterase inhibitor (AChEI) therapy and/or memantine, must be on stable doses for 3 months prior to the Baseline visit and during the study
  • Patient is willing and able to provide informed consent. If the subject is unable to provide written consent due to the severity of dementia, consent must be given by a legally authorized representative

Exclusion Criteria:

  • Patient has a history of significant psychotic disorders prior to or concomitantly with the diagnosis of Alzheimer's disease including, but not limited to, schizophrenia or bipolar disorder
  • Patient is unable to communicate verbally
  • Patient has current evidence of a serious and/or unstable cardiovascular, respiratory, gastrointestinal, renal, hematologic or other medical disorder, including cancer or malignancies, which would affect the patient's ability to participate in the study
  • Patient has had a myocardial infarction in the last six months
  • Patient has moderate to severe congestive heart failure
  • Patient has any surgery planned during the screening, treatment, or follow-up periods that could interfere with participation in the study per the protocol assessments

Patients will be evaluated at screening to ensure that all criteria for study participation are met. These evaluations will include specific measures of psychosis severity, delirium, dementia, cardiovascular condition, and pregnancy status. Patients may be excluded from the study based on these assessments (and specifically if it is determined that their baseline health and psychiatric condition do not meet all protocol-specified entry criteria).

Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 50 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE No
Contacts  ICMJE Contact information is only displayed when the study is recruiting subjects
Listed Location Countries  ICMJE United Kingdom
Removed Location Countries  
Administrative Information
NCT Number  ICMJE NCT02035553
Other Study ID Numbers  ICMJE ACP-103-019
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement  ICMJE Not Provided
Current Responsible Party ACADIA Pharmaceuticals Inc.
Original Responsible Party Same as current
Current Study Sponsor  ICMJE ACADIA Pharmaceuticals Inc.
Original Study Sponsor  ICMJE Same as current
Collaborators  ICMJE Not Provided
Investigators  ICMJE Not Provided
PRS Account ACADIA Pharmaceuticals Inc.
Verification Date September 2017

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP