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Study of Olanzapine vs. Aripiprazole in the Treatment of Schizophrenia

A Randomized Double-Blind Study of Olanzapine Versus Aripiprazole in the Treatment of Schizophrenia

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00088049
Enrollment
560
Registered
2004-07-21
Start date
2003-10-31
Completion date
2007-07-31
Last updated
2007-07-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Schizophrenia

Brief summary

The purpose of the protocol is to evaluate the efficacy of olanzapine compared with Aripiprazole in patients with schizophrenia.

Interventions

DRUGOlanzapine
DRUGAripiprazole

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Male or female inpatient or outpatients, ages 18-65

Exclusion criteria

* Participation in a clinical trial of another drug including olanzapine or aripiprazole within 30 days prior to study entry (visit 1). * Treatment with clozapine within the past 12 months. * Have known uncorrected narrow-angle glaucoma. * Have a diagnosis of Parkinson's disease, dementia or related disorder

Design outcomes

Primary

MeasureTime frame
To determine the long-term effectiveness and tolerability as measured by time to all-cause treatment discontinuation of olanzapine and aripiprazole relative to each other in patients with schizophrenia during 28 weeks of double-blind therapy

Secondary

MeasureTime frame
improvement in psychopathology of schizophrenia as measured by PANSS change
change in CGI-S and PGI-I scores
level of activation as measured by PANSS change
depressive symptoms as measured by MADRS score
response rates
time to failure to maintain response
quality of life as measured by the SWN-S and SF-36
To assess olanzapine versus aripiprazole in the following:
sexual functioning as measured by the GISF
health resource utilization and resource utilization costs
hospitalization time
treatment emergent adverse events
EPS as measured by the Simpson-Angus, Barnes, and AIMS
laboratory values
vital signs
cognitive functioning as measured by the MOS

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 3, 2026