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SchizophreniaPhase 3NCT00236457

A Study Comparing the Efficacy of Long-acting Injectable Risperidone and Olanzapine Tablets in the Treatment of Patients With Schizophrenia or Schizoaffective Disorder

A Phase 3 study testing risperidone in people with Schizophrenia and Psychotic Disorders, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

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 document both short-term, as well as long-term efficacy and safety of a long-acting injectable formulation of risperidone, in comparison with olanzapine for the treatment of patients with schizophrenia or schizoaffective disorder. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Schizophrenia, Psychotic Disorders
What is being tested?
risperidone
How many people
629 participants
Where
No sites listed yet
Study dates
Nov 2000to Dec 2002
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis of schizophrenia or schizoaffective disorder according to criteria of Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DMS IV)
  • Positive and Negative Syndrome Scale (PANSS) total score =>50, indicating at least a minimum level of mental and behavioral disorders
  • Recent hospitalization or an episode of psychosis requiring medical intervention
  • Body Mass Index (BMI) <=40 (BMI >=30 indicates obesity)

Who cannot join

  • Diagnosis of DMS IV Axis I condition other than schizophrenia or schizoaffective disorder
  • History of neuroleptic malignant syndrome, a rare psychotropic-drug reaction, which may be characterized by confusion, reduced consciousness, high fever or pronounced muscle stiffness
  • Past treatment with clozapine
  • Pregnant or nursing females, or those lacking adequate contraception
  • Known sensitivity or unresponsiveness to risperidone or olanzapine
  • Treatment with a long-acting injectable antipsychotic drug near the time of the trial start

About this study

Official title: Randomized, Multi-center, Open Label Trial Comparing Risperidone Depot (Microspheres) and Olanzapine Tablets in Patients With Schizophrenia or Schizoaffective Disorder

The purpose of this study is to document both short-term, as well as long-term efficacy and safety of a long-acting injectable formulation of risperidone, in comparison with olanzapine for the treatment of patients with schizophrenia or schizoaffective disorder.

Read the detailed description

Many schizophrenia patients currently take oral antipsychotic medications daily, but long-acting injectable formulations may eliminate this need for the daily medication. This is an open-label study of a flexible does of a long-acting formulation of risperidone injected into the muscle at 2 week intervals over 12 months in patients with schizophrenia or schizoaffective disorder. A comparator group will receive daily tablets of olanzapine, a psychotropic agent available for the treatment of schizophrenia and schizoaffective disorders. This is a two-part trial. Patients will be titrated to the most effective dose of trial medication during the first 13 weeks and analyzed for short-term efficacy and safety of treatment at Week 13. Patients will be then assessed for maintenance of efficacy, safety, and resource use at Week 52 (second part of study). Efficacy assessments include the Structured Clinical Interview - Positive and Negative Syndrome Scale (SCI-PANSS), overall severity of illness measured by the Clinical Global Impression (CGI) scale, and quality of life assessed by Wisconsin Quality of Life Index (W-QOLI). Safety evaluations include incidence of adverse events, Simpson and Angus Rating Scale for extrapyramidal symptoms, physical examinations, clinical laboratory tests (biochemistry, haematology, and urinalysis), and electrocardiograms (ECGs). The primary study hypothesis is that treatment with long-acting risperidone injected intramuscularly every 2 weeks is not inferior to treatment with daily olanzapine in terms of short-term efficacy and is well tolerated by patients with schizophrenia or schizoaffective disorder. Risperidone injections (25mg or 50mg) every 2 weeks for 12 months. Investigator may decrease or increase dosages (max 50mg) or supplement risperidone injections with risperidone tablets (4mg/day max.). Control group receives olanzapine tablets (5mg) daily, adjusted as necessary (max 20mg).

Being tested
risperidone
Keywords
Schizophrenia, Intramuscular injection, Antipsychotic agents, Long-acting risperidone, Olanzapine
Medical subject headings
Schizophrenia, Psychotic Disorders

What participants receive

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

What is being measured

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

  1. Mean change from baseline to Week 13 for total score using the Structured Clinical Interview- Positive and Negative Syndrome Scale (SCI-PANSS)

Secondary outcomes (1)
  1. Change from baseline through each visit and at study end (Week 53) for SCI-PANSS total score, SCI-PANSS subscales, Clinical Global Impression (CGI) and Wisconsin Quality of Life Index (W-QOLI). Safety evaluations throughout the study.

Timeline

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

  1. First posted12 Oct 2005 (estimated)
  2. Study startNov 2000
  3. Study completionDec 2002

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
None (open label)
Enrolment
629 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00236457
Sponsor's protocol ID
CR002026
Status last verified
Nov 2010
First submitted
7 Oct 2005
Last updated
8 Jun 2011
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing risperidone in people with Schizophrenia and Psychotic Disorders, run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C..

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 4 inclusion and 6 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 Jun 2011. 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?

Mean change from baseline to Week 13 for total score using the Structured Clinical Interview- Positive and Negative Syndrome Scale (SCI-PANSS). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Jun 2011.

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Clinical Trial NCT00236457 | AzTrials