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SchizophreniaPhase 3NCT00216476

A Study of Relapse Prevention and the Effectiveness of Long-acting Injectable Risperidone and Quetiapine Tablets in the Treatment of Patients With Schizophrenia or Schizoaffective Disorder

A Phase 3 study testing Aripiprazole, Risperidone Long Acting Injectable (LAI) and Quetiapine in people with Schizophrenia and Psychotic Disorders, run by Janssen-Cilag International NV at 96 sites in 24 countries.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to investigate whether a long-acting injectable formulation of risperidone provides better effectiveness over 2 years, as measured by the time to relapse, compared with quetiapine tablets in a routine psychiatric care setting. Aripiprazole will be investigated in a descriptive manner. 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?
Aripiprazole, Risperidone Long Acting Injectable (LAI) and Quetiapine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
753 participants
Where
96 sitesin 24 countries
Study dates
Oct 2004to Nov 2007
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 the Diagnostic and Statistical Manual of Mental Diseases, 4th edition (DSM-IV)
  • Patients currently treated with oral risperidone, olanzapine or a conventional neuroleptic monotherapy at doses not exceeding 6 mg risperdal, 20 mg olanzapine, or a conversion dose of 10 mg haloperidol for oral conventional agents
  • Patients who are stable (judged clinically stable by the investigator and on a stable dose of medication for 4 weeks or longer) but not optimally treated (non-satisfactory treatment regarding symptoms or adverse events)

Who cannot join

  • Diagnosis other than schizophrenia or schizoaffective disorder by DSM-IV Axis I criteria
  • Patients being treated with antipsychotic agents other than oral risperidone, olanzapine or conventional oral neuroleptic agents
  • Patients with known hypersensitivity to oral risperidone, quetiapine, aripiprazole, or who are known non-responders to oral risperidone, quetiapine, aripiprazole or to previous treatment with at least 2 antipsychotic agents
  • Patients treated with mood stabilizers or antidepressants who are not on stable dose for at least 3 months before study initiation
  • Pregnant or nursing females, or those lacking adequate contraception

Trial locations and contacts

96 sites in 24 countries.

96 sites in 24 countries

France10 sites
  • Study site

    Bron

  • Study site

    Brumath

  • Study site

    Créteil

  • Study site

    Dieppe

  • Study site

    Hénin-Beaumont

  • Study site

    Mont-Saint-Martin

  • Study site

    Poitiers

  • Study site

    Reims

  • Study site

    Roubaix

  • Study site

    Toulouse

Other trials in France

Germany10 sites
  • Study site

    Augsburg

  • Study site

    Berlin

  • Study site

    Bochum

  • Study site

    Duisburg

  • Study site

    Düsseldorf

  • Study site

    Karlstadt am Main

  • Study site

    Krefeld

  • Study site

    München

  • Study site

    Oranienburg

  • Study site

    Stralsund

Other trials in Germany

Czechia9 sites
  • Study site

    Brno

  • Study site

    Lnáře

  • Study site

    Opava

  • Study site

    Pardubice

  • Study site

    Plzen Czechia

  • Study site

    Prague

  • Study site

    Praha 2 N/A

  • Study site

    Uherský Brod

  • Study site

    Ústí nad Labem

Other trials in Czechia

Hungary6 sites
  • Study site

    Budapest

  • Study site

    Gyõr

  • Study site

    Gyula

  • Study site

    Kistarcsa

  • Study site

    Szeged

  • Study site

    Vác

Other trials in Hungary

Lithuania5 sites
  • Study site

    Alytus

  • Study site

    Kaunas

  • Study site

    Klaipėda

  • Study site

    Šiauliai

  • Study site

    Vilnius

Other trials in Lithuania

United Kingdom5 sites
  • Study site

    Barnet

  • Study site

    Barnsley

  • Study site

    Hull

  • Study site

    Llantrissant

  • Study site

    Swansea

Other trials in United Kingdom

Croatia4 sites
  • Study site

    Osijek

  • Study site

    Rijeka

  • Study site

    Split

  • Study site

    Zagreb

Other trials in Croatia

Ireland4 sites
  • Study site

    Cork

  • Study site

    Dublin

  • Study site

    Kerry

  • Study site

    Sligo

Other trials in Ireland

Poland4 sites
  • Study site

    Choroszcz

  • Study site

    Gdynia Na

  • Study site

    Poznan

  • Study site

    Warsaw

Other trials in Poland

Spain4 sites
  • Study site

    Madrid

  • Study site

    Oviedo (Asturias)

  • Study site

    Seville

  • Study site

    Valencia

Other trials in Spain

Turkey (Türkiye)4 sites
  • Study site

    Ankara Turkey

  • Study site

    Bakirkoy/Istanbul N/A

  • Study site

    Istanbul

  • Study site

    Izmir

Other trials in Turkey (Türkiye)

Austria3 sites
  • Study site

    Hall in Tirol

  • Study site

    Linz

  • Study site

    Neunkirchen

Other trials in Austria

Bulgaria3 sites
  • Study site

    Pleven

  • Study site

    Sofia

  • Study site

    Sofia Sofia

Other trials in Bulgaria

Estonia3 sites
  • Study site

    Pÿrnu N/A

  • Study site

    Tallinn

  • Study site

    Tartu

Other trials in Estonia

Israel3 sites
  • Study site

    Jerusalem

  • Study site

    Ramat Gan

  • Study site

    Tel Aviv

Other trials in Israel

Romania3 sites
  • Study site

    Bucharest

  • Study site

    Craiova

  • Study site

    Iași

Other trials in Romania

Slovenia3 sites
  • Study site

    Begunje na Gorenjskem

  • Study site

    Ljubljana

  • Study site

    Ormoz

Other trials in Slovenia

Denmark2 sites
  • Study site

    Middelfart

  • Study site

    Vordingborg

Other trials in Denmark

Greece2 sites
  • Study site

    Heraklion -Crete

  • Study site

    Thessalonikis

Other trials in Greece

Latvia2 sites
  • Study site

    Jelgava

  • Study site

    Riga

Other trials in Latvia

Portugal2 sites
  • Study site

    Coimbra

  • Study site

    Porto

Other trials in Portugal

Slovakia2 sites
  • Study site

    Košice

  • Study site

    Zvolen

Other trials in Slovakia

Sweden2 sites
  • Study site

    Gothenburg

  • Study site

    Trollhättan

Other trials in Sweden

Saudi Arabia1 site
  • Study site

    Khobar

Other trials in Saudi Arabia

About this study

Official title: CONSTATRE: Risperdal Consta Trial Of Relapse Prevention And Effectiveness

The purpose of this study is to investigate whether a long-acting injectable formulation of risperidone provides better effectiveness over 2 years, as measured by the time to relapse, compared with quetiapine tablets in a routine psychiatric care setting. Aripiprazole will be investigated in a descriptive manner.

Read the detailed description

Although many schizophrenia patients currently take oral antipsychotic medications, it is estimated that up to 75% of them have difficulty adhering to the daily oral regimen. Long-acting injectable formulations may eliminate the need for daily medication and enhance patient compliance with the treatment regimen. This is an open-label (all people involved know the identity of the intervention), randomized (study drug assigned by chance) study of a formulation of risperidone (coated microspheres) injected into the muscle at 2 week intervals over 104 weeks in stable patients with schizophrenia or schizoaffective disorder, who are being treated with oral risperidone, olanzapine, or other conventional antipsychotic agents. A comparator group will receive tablets of quetiapine to be taken 2 or 3 times daily, depending on the optimal dosage. In countries where aripiprazole is available, aripiprazole was also included in a descriptive manner. Reasons for switching symptomatically stable patients from their current antipsychotic treatment include insufficient effectiveness of the medication on symptoms, adverse events, or a patient's request. The principal measure of effectiveness of the drug is the time to relapse. Assessments of effectiveness also include: Positive and Negative Syndrome Scale (PANSS), which measures the symptoms of schizophrenia; overall severity of illness measured by the Clinical Global Impression subscale (CGI-S); patient's condition measured by the Clinical Global Impression condition subscale (CGI-C); quality of life assessed by the SF-12 survey. Safety evaluations include incidence of adverse events, Extrapyramidal Symptoms Rating Scale (ESRS), clinical laboratory tests (biochemistry, haematology, and urinalysis), and vital signs (pulse, blood pressure). The study hypothesis is that treatment with long-acting risperidone injected intramuscularly every 2 weeks provides better effectiveness than quetiapine, as measured by time to relapse, in patients with schizophrenia or schizoaffective disorder. Risperidone injections 25mg biweekly for 104 weeks, increasing or decreasing (increments of 12.5mg) at investigator's discretion. Risperidone tablets (2mg daily for 2 days) for patients starting on risperidone. Quetiapine and Aripiprazole used according to package insert.

Being tested
Aripiprazole, Risperidone Long Acting Injectable (LAI), Quetiapine
Keywords
Schizophrenia, relapse prevention, Antipsychotic agents, Long-acting risperidone, Quetiapine, Aripiprazole
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.

  • AripiprazoleDrug

    10-30 mg oral once daily for 104 weeks

  • Risperidone Long Acting Injectable (LAI)Drug

    25 mg injection every 2 weeks until week 104. Dosage may be increased or decreased in steps of 12.5 mg. Additional oral risperidone can be administered as required until a dose increase becomes effective.

  • QuetiapineDrug

    Oral tablets are titrated from 50 mg daily to 300-400 mg daily in first 4 days. Subsequently treatment is maintained for 104 weeks and dosage can be adjusted with increments or decrements of 25 to 50 mg.

Study groups in NCT00216476
Study groupRoleWhat they receive
001ExperimentalRisperidone Long Acting Injectable (LAI) 25 mg injection every 2 weeks until week 104. Dosage may be increased or decreased in steps of 12.5 mg. Additional oral risperidone can be administered as required until a dose increase becomes effective.
Receives: Drug: Risperidone Long Acting Injectable (LAI)
002Active comparatorQuetiapine Oral tablets are titrated from 50 mg daily to 300-400 mg daily in first 4 days. Subsequently treatment is maintained for 104 weeks and dosage can be adjusted with increments or decrements of 25 to 50 mg.
Receives: Drug: Quetiapine
003OtherAripiprazole 10-30 mg oral once daily for 104 weeks
Receives: Drug: Aripiprazole

What is being measured

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

  1. Mean Relapse Free Period(Risperidone LAI Versus Quetiapine)

    Relapse was defined as meeting any of the predefined criteria (adapted from Csernansky et al., 2002) on 2 consecutive evaluations during treatment, 3 to 5 days apart. The relapse rate in each treatment arm was estimated using the Kaplan-Meier method.

    Measured: Assessed at each visit from the moment the subject was randomized to a treatment arm (baseline visit) until the end of treatment (Week 104 or earlier)

Secondary outcomes (4)
  1. Mean Relapse Free Period (Exploratory/Aripiprazole)

    As for risperidone and quetiapine, relapse was defined as meeting any of the predefined criteria (adapted from Csernansky et al., 2002) on 2 consecutive evaluations during treatment, 3 to 5 days apart. Since aripiprazole was new on the market at the time the study was conducted, this aripiprazole analysis was exploratory.

    Measured: Assessed at each visit from the moment the subject was randomized to a treatment arm (baseline visit) until the end of treatment (Week 104 or earlier)

  2. Change From Baseline to Endpoint in Total Positive and Negative Syndrome Scale (PANSS) Score

    The neuropsychiatric symptoms of schizophrenia were assessed by means of the 30-item PANSS scale. The PANSS scale provides a total score (sum of the scores of all 30 items) and scores for 3 subscales, i.e., the positive subscale (7 items), the negative subscale (7 items), and the general psychopathology subscale (16 items).

    Each item of the scale is to be scored on a scale of 1 (absent) to 7 (extreme).

    Measured: Assessed at each visit from the moment the subject was randomized to a treatment arm (baseline visit) until the end of treatment (Week 104 or earlier)

  3. Change From Baseline to Endpoint in Clinical Global Impression Scale (CGI) Score

    The 7-point CGI scale of Severity (CGI-S) was used to assess the severity of a subject's psychotic condition (0= normal, not at all ill, 1= borderline, etc. and 6= among the most extremely ill subjects).

    Measured: Assessed at each visit from the moment the subject was randomized to a treatment arm (baseline visit) until the end of treatment (Month 24 or earlier)

  4. Change From Baseline to Endpoint in Short-Form Health Survey 12 (SF-12) Scores

    Quality of life was assessed by means of the 12-item SF-12® survey. Two parameters, i.e., PCS (physical component summary) and MCS (mental component summary) were calculated. Both components scores range from 0 to 100 with higher scores indicating better QOL.

    Measured: Assessed at the moment the subject was randomized to a treatment arm (baseline visit) and after 1, 3, 6, 12, 18, and 24 months of treatment

Timeline

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

  1. First posted22 Sep 2005 (estimated)
  2. Study startOct 2004
  3. Primary completionNov 2007
  4. Study completionNov 2007

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
753 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00216476
Sponsor's protocol ID
CR002269
Status last verified
Mar 2014
First submitted
13 Sep 2005
Last updated
16 Apr 2014
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Aripiprazole, Risperidone Long Acting Injectable (LAI) and Quetiapine in people with Schizophrenia and Psychotic Disorders, run by Janssen-Cilag International NV at 96 sites in 24 countries.

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 3 inclusion and 5 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 16 Apr 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 96 sites in France, Germany, Czechia, Hungary, Lithuania and 19 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Yes. Results are posted in the registry (first posted 10 Aug 2010). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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 Relapse Free Period(Risperidone LAI Versus Quetiapine) (time frame: Assessed at each visit from the moment the subject was randomized to a treatment arm (baseline visit) until the end of treatment (Week 104 or earlier)). 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 16 Apr 2014.

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