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SchizophreniaPhase 3NCT00236353

Evaluation of the Efficacy and Safety of Risperidone Injections Given Once a Month to Adults With Schizophrenia or Schizoaffective Disorder

A Phase 3 study testing risperidone in people with Schizophrenia and Psychotic Disorders, run by Janssen, LP.

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 assess the effectiveness and safety of long-acting risperidone given as a once monthly injection to adult patients with schizophrenia or schizoaffective disorder. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Schizophrenia, Psychotic Disorders
What is being tested?
risperidone
How many people
86 participants
Where
No sites listed yet
Study dates
May 2002to 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

  • Diagnosis of schizophrenia or schizoaffective disorder
  • stable with respect to disease symptoms and other medical conditions
  • stable on antipsychotic therapy with oral risperidone 2 to 6 milligrams per day for 8 weeks before study
  • if female, using birth control.

Who cannot join

  • Hospitalized within 8 weeks of beginning the study
  • at risk to self or others
  • presence of liver or kidney damage
  • use of oral antipsychotic drugs other than risperidone within the past 8 weeks, of injected antipsychotics within the past 6 months, of long-acting risperidone in an earlier study, of investigational drugs within the past 30 days, or of electroconvulsive therapy within the past 12 months
  • pregnant or breast-feeding
  • if female, not using birth control
  • abusing drugs or alcohol.

About this study

Official title: An Open-label Study of the Efficacy and Safety of RISPERDAL Long-acting Microspheres (RISPERDAL CONSTA) Administered Once Monthly in Adults With Schizophrenia or Schizoaffective Disorder

The purpose of this study is to assess the effectiveness and safety of long-acting risperidone given as a once monthly injection to adult patients with schizophrenia or schizoaffective disorder.

Read the detailed description

Risperidone, taken by mouth on a daily basis, has been an effective treatment for schizophrenia and schizoaffective disorder. Risperidone is also available in a long-acting injectable form so that patients can take their medicine by bi-weekly injections. This study will assess the effectiveness and safety of long-acting risperidone injection given once a month instead of every two weeks (based on previous studies with dosing every 2 weeks). During the four-week lead-in phase, patients will receive one 50-milligram injection every two weeks for two doses. Patients continue to take their prescribed dose of risperidone tablets (from 2 to 6 milligrams per day) for the first 14 days. After the first month, patients will receive one 50-milligram injection once a month for 48 weeks. This dose can be increased to 75 milligrams if patient meets relapse criteria, and is willing to stay in the trial. Patients will be asked questions to help determine how well the monthly injections are working. Laboratory tests (including drug levels), physical examinations and adverse event reporting will be performed to determine the safety of the monthly injections. Risperidone oral tablets, 2 to 6 milligrams per day, for first 2 weeks; long-acting risperidone intramuscular injections, 50 mg in 2 milliliters of liquid, every 2 weeks for 1 month, then injections once a month for 48 weeks. Monthly injection dose may be increased to 75 mg in 2-mL if needed.

Being tested
risperidone
Keywords
schizophrenia, schizoaffective disorder, long-acting risperidone, intramuscular injection
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. Effectiveness measured by incidence of symptom reoccurrence (relapse) in 1 year.

Secondary outcomes (1)
  1. Effectiveness assessed by the Clinical Global Impression Scale, Positive and Negative Syndrome Scale; safety scales are for: Extrapyramidal Symptom Rating, Abnormal Involuntary Movement, and Dickson-Glazer Sexual Functioning Inventory, and adverse events

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 startMay 2002
  3. 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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00236353
Sponsor's protocol ID
CR002830
Status last verified
Mar 2011
First submitted
7 Oct 2005
Last updated
17 May 2011
Results posted
No

Publications

  • Uchida H, Mamo DC, Kapur S, Labelle A, Shammi C, Mannaert EJ, Mann SW, Remington G. Monthly administration of long-acting injectable risperidone and striatal dopamine D2 receptor occupancy for the management of schizophrenia. J Clin Psychiatry. 2008 Aug;69(8):1281-6. doi: 10.4088/jcp.v69n0811.

    PubMed 18642974

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 Janssen, LP.

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 7 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 17 May 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?

Effectiveness measured by incidence of symptom reoccurrence (relapse) in 1 year.. 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 NCT00236353, 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 17 May 2011.

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