NCT01066481

Brief Summary

The purpose of this study is to demonstrate the safety and efficacy of PF-01913539 in the treatment of patients with mild-to-moderate Alzheimer's Disease. It is a 6-month study enrolling 651 patients in Japan, Hong Kong, Korea, and Republic of China. All patients completing the 6-month study will be eligible to receive PF-01913539 in an open-label extension trial (B1451031).

Trial Health

15
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Timeline
Completed

Started Apr 2010

Status
withdrawn

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 9, 2010

Completed
1 day until next milestone

First Posted

Study publicly available on registry

February 10, 2010

Completed
2 months until next milestone

Study Start

First participant enrolled

April 1, 2010

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2012

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2012

Completed
Last Updated

June 29, 2010

Status Verified

June 1, 2010

Enrollment Period

1.9 years

First QC Date

February 9, 2010

Last Update Submit

June 28, 2010

Conditions

Keywords

Alzheimer's diseaseclinical trialmemory lossinvestigational drugneurodegenerative diseasedementia

Outcome Measures

Primary Outcomes (2)

  • Mean change in the Alzheimer's Disease Assessment Scale Cognitive Subscale (ADAS-cog) score from baseline.

    26 weeks

  • Distribution of Clinician's Interview-Based Impression of Change plus Caregiver (CIBIC-plus) Input

    26 weeks

Secondary Outcomes (6)

  • Mean change in Alzheimer's Disease Cooperative Study - Activities of Daily Living (ADAS-ADL) score from baseline.

    12, 26 weeks

  • Mean change in Neuropsychiatric Inventory (NPI) score from baseline.

    12, 26 weeks

  • Mean change in Mini-Mental State Examination (MMSE) score from baseline.

    6, 12, 18, 26 weeks

  • Mean change in each item of Resource Utilization In Dementia(RUD) Lite from baseline.

    12, 26 weeks

  • Adverse events, physical examination, vital signs (blood pressure, temperature, and heart rate), 12-lead ECG, and laboratory tests (hematology, blood chemistry and urinalysis).

    12, 26 weeks

  • +1 more secondary outcomes

Study Arms (3)

PF-01913539 5 mg three times daily

EXPERIMENTAL

PF-01913539 5 mg three times daily for 6 months

Drug: PF-01913539 5 mg

PF-01913539 20 mg three times daily

EXPERIMENTAL

PF-01913539 20 mg three times daily for 6 months

Drug: PF-01913539 5 mg

Placebo

PLACEBO COMPARATOR

Placebo three times daily for 6 months

Drug: Placebo

Interventions

PF-01913539 5 mg three times daily for 6 months

PF-01913539 5 mg three times daily

Placebo three times daily for 6 months

Placebo

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Mild-to-Moderate Alzheimer's disease
  • MMSE score 10-24 inclusive

You may not qualify if:

  • Administration of anti-dementia drugs including cholinesterase-inhibitors or NMDA receptor antagonists within 90 days
  • Complication of other causes of dementia

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Links

MeSH Terms

Conditions

Alzheimer DiseaseDementiaMemory DisordersNeurodegenerative Diseases

Interventions

latrepirdine

Condition Hierarchy (Ancestors)

Brain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurocognitive DisordersMental DisordersNeurobehavioral ManifestationsNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY

Study Record Dates

First Submitted

February 9, 2010

First Posted

February 10, 2010

Study Start

April 1, 2010

Primary Completion

March 1, 2012

Study Completion

April 1, 2012

Last Updated

June 29, 2010

Record last verified: 2010-06