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SchizophreniaPhase 3NCT00712686

Comparative Study of Aripiprazole and Olanzapine in the Treatment of Patients With Acute Schizophrenia

A Phase 3 study testing Aripiprazole and Olanzapine in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc..

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to compare the efficacy and tolerability of aripiprazole to olanzapine over 26 weeks for the treatment of schizophrenia Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Schizophrenia
What is being tested?
Aripiprazole and Olanzapine
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
690 participants
Where
No sites listed yet
Study dates
Jun 2000to Dec 2003
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with DSM-IV diagnosis of schizophrenia patients in acute relapse
  • Treated as outpatients for at least one continuous 3-month period during the past 12 months
  • PANSS total score ≥60
  • Previously responsive to neuroleptics (other than clozapine)
  • Able to give informed consent and comprehend and satisfactorily comply with the protocol requirements

Who cannot join

  • An Axis I (DSM-IV) diagnosis of schizoaffective disorder
  • A clinical picture and/or history that was consistent with: (a) Delirium, dementia, amnestic or other cognitive disorders; (b) Bipolar disorder; (c)personality disorder
  • Nonresponsive to prior olanzapine therapy
  • Likely to require prohibited concomitant therapy
  • DSM-IV criteria for any significant substance abuse within the past three months, including addiction to cocaine or alcohol
  • Known to be allergic or hypersensitive to study drugs
Show all 10Show fewer
  • Represented a significant risk of committing suicide based on history or mental status exam
  • Unstable thyroid pathology and treatment within the past six months
  • A history or evidence of a medical condition that would expose the patient to an undue risk
  • Clinically significant abnormal laboratory test results (including urine drug screen), vital sign, or ECG findings

About this study

Official title: A Multicenter, Double-Blind, Randomized, Comparative Study of Aripiprazole and Olanzapine in the Treatment of Patients With Acute Schizophrenia

The purpose of this study is to compare the efficacy and tolerability of aripiprazole to olanzapine over 26 weeks for the treatment of schizophrenia

Conditions
Schizophrenia
Medical subject headings
Schizophrenia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AripiprazoleDrug

    Also called Abilify

    Tablets, Oral, 15-30 mg, once daily, 140 weeks

  • OlanzapineDrug

    Capsule, Oral, 10-20 mg, once daily, 140 weeks

Study groups in NCT00712686
Study groupRoleWhat they receive
A1Active comparatorNot described
Receives: Drug: Aripiprazole
B1Active comparatorNot described
Receives: Drug: Olanzapine

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The mean change in the PANSS Total Score

    Measured: from baseline to Week 6

  2. The percentage of patients showing significant weight gain (a≥ 7% increase)

    Measured: from baseline to Week 26

Secondary outcomes (9)
  1. Change from baseline on the CGI-S Score

    Measured: at the end of study

  2. Change from baseline on PANSS Total Score

    Measured: at the end of study

  3. Change from baseline on PANSS-Positive Scale Total Score

    Measured: at the end of study

  4. Change from baseline on PANSS-Negative Scale Total Score

    Measured: at the end of study

  5. Mean change from baseline in PANSS-derived Brief Psychiatric Rating Scale (BPRS) Core Score

    Measured: at the end of study

  6. Mean CGI-I Score

    Measured: at the end of study

  7. Percentage of responders (≥ 30% decrease in PANSS Total Score, or score of 1 or 2 on CGI-I)

    Measured: at the end of study

  8. Change from baseline on the MADRS

    Measured: at the end of study

  9. Safety and tolerability

    Measured: at the end of study

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted10 Jul 2008 (estimated)
  2. Study startJun 2000
  3. Primary completionDec 2003
  4. Study completionDec 2003

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
690 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00712686
Sponsor's protocol ID
CN138-003
Status last verified
Jun 2010
First submitted
8 Jul 2008
Last updated
8 Nov 2013
Results posted
No
Data monitoring committee
No

Publications

  • Fleischhacker WW, McQuade RD, Marcus RN, Archibald D, Swanink R, Carson WH. A double-blind, randomized comparative study of aripiprazole and olanzapine in patients with schizophrenia. Biol Psychiatry. 2009 Mar 15;65(6):510-7. doi: 10.1016/j.biopsych.2008.07.033. Epub 2008 Nov 4.

    PubMed 18986646

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Aripiprazole and Olanzapine in people with Schizophrenia, run by Otsuka Pharmaceutical Development & Commercialization, Inc..

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Nov 2013. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The mean change in the PANSS Total Score (time frame: from baseline to Week 6). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00712686, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Nov 2013.

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