A Study to Assess Learning Performance in Patients With Schizophrenia and Young and Elderly Healthy Volunteers

Janssen (J&J Innovative Medicine)

Status and phase

Completed

Early Phase 1

Conditions

Schizophrenia

Treatments

Behavioral: Cognitive Test Battery 2

Behavioral: Cognitive Test Battery 1

Study type

Interventional

Funder types

Industry

Identifiers

NCT01788436

NOCOMPOUNDEDI0004 (Other Identifier)

CR100911

Details and patient eligibility

About

The purpose of this study is to measure and contrast implicit and explicit learning performance in patients with schizophrenia relative to young and elderly healthy volunteers.

Full description

This is an exploratory study involving schizophrenic patients (Group 1) and young and elderly healthy volunteers (Group 2 and 3 respectively). No investigational medicinal product will be administered. For all participants enrolled (Group 1 to 3) the study will consist of an eligibility screening examination (from Day -21 up to and including Day 1) and 3 cognitive assessment days. Cognitive assessments will be made on 2 subsequent days (Days 1 and 2) which are separated by overnight sleep. In addition, a session will be performed on Day 7. Completion of the cognitive test batteries can occur at any time during the day provided that the completion time is comparable on all test days. For each participant, the maximal study duration will not exceed 4 weeks.

Enrollment

51 patients

Sex

All

Ages

18 to 85 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Group 1 (patients with schizophrenia):
Be a man or woman between 18 and 55 years of age, inclusive
Has a known history of schizophrenia of at least 12 months by the referring psychiatrist
Receives stable antipsychotic drug therapy (maximally 2) for at least 6 weeks prior to screening
Medically stable on the basis of clinical judgment by the investigator
Group 2 (young healthy volunteers): be a healthy man or woman between 18 and 55 years of age, inclusive
Group 3 (elderly healthy volunteers): be a healthy man or woman between 65 and 85 years of age, inclusive
All participants (Group 1 to 3) must be capable of completing the cognitive test battery

Exclusion criteria

Receives treatment with benzodiazepines, tricyclic antidepressant or anticholinergics
Has a positive urine screen for drugs of abuse or alcohol breath test
Has a recent history (within previous 6 months) of alcohol or drug abuse
Has psychological and/or emotional problems, which would render the informed consent invalid, or limit the ability of the participant to comply with the study requirements
Has any condition that, in the opinion of the investigator, would compromise the wellbeing of the participant or the study or prevent the participant from meeting or performing study requirements
Group 1 only: a diagnosis of substance dependence within 3 months prior to screening evaluation (patient with a positive drug screen at screening may be included provided use does not lead to a diagnosis of substance dependence and patient consents to abstain from illegal drugs at any time during the study)