NCT01490567

Brief Summary

The objective of the study was to study the effects of donepezil on cognition in patients with schizophrenia. The investigators conducted a 12-week, double-blind, placebo-controlled trial of donepezil as adjunctive treatment to antipsychotic drugs on patients with schizophrenia.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
80

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Jun 2011

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
unknown

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

Study Start

First participant enrolled

June 1, 2011

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

November 9, 2011

Completed
1 month until next milestone

First Posted

Study publicly available on registry

December 13, 2011

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2012

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2012

Completed
Last Updated

December 13, 2011

Status Verified

December 1, 2011

Enrollment Period

1 year

First QC Date

November 9, 2011

Last Update Submit

December 9, 2011

Conditions

Keywords

Impaired Cognition Schizophrenia

Outcome Measures

Primary Outcomes (1)

  • Mean Change From Baseline in the Composite Score From the Cognition Assessment Battery After 12 Weeks of Treatment

    12 weeks

Secondary Outcomes (1)

  • Mean Change From Baseline in Cognition Assessment scores After 12 Weeks of Treatment

    12 weeks

Study Arms (2)

placebo

PLACEBO COMPARATOR

Subjects will be given with a dose of 5mg/day placebo. All drugs will be administered orally.

Drug: placebo

donepezil

ACTIVE COMPARATOR

Subjects will be given with a dose of 5 mg/day donepezil. All drugs will be administered orally.

Drug: Donepezil

Interventions

5 mg/day

Also known as: Donepezil hydrochloride
donepezil

placebo 5mg/d

placebo

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • DSM-IV diagnosis of schizophrenia as determined by the Structured Clinical Interview for DSM-IV Axis I Disorders-Clinician Version;
  • Between 18 and 40 years of age;
  • Duration of the illness must be longer than 2 year;
  • Patient's current antipsychotic medication regimen must be stable;
  • Must be in a stable living arrangement;

You may not qualify if:

  • Patient has mental retardation or severe organic brain syndromes;
  • Treatment with Electroconvulsive Therapy (ECT) within 6 months prior to screening;
  • Has suicidal attempts or ideation or violent behavior within the last 12 months;
  • Patient has a history of alcohol/drug dependence;

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

the Second Xiangya Hospital of Central South University

Changsha, Hunan, 410011, China

RECRUITING

MeSH Terms

Conditions

Cognition DisordersSchizophrenia

Interventions

Donepezil

Condition Hierarchy (Ancestors)

Neurocognitive DisordersMental DisordersSchizophrenia Spectrum and Other Psychotic Disorders

Intervention Hierarchy (Ancestors)

IndansIndenesPolycyclic Aromatic HydrocarbonsHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsOrganic ChemicalsPiperidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsPolycyclic Compounds

Study Officials

  • Xiaofeng Guo, doctor

    Second Xiangya Hospital of Central South University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 9, 2011

First Posted

December 13, 2011

Study Start

June 1, 2011

Primary Completion

June 1, 2012

Study Completion

June 1, 2012

Last Updated

December 13, 2011

Record last verified: 2011-12

Locations