SchizophreniaPhase 3NCT00249132
A Study of the Effectiveness and Safety of Risperidone Compared With Haloperidol and Placebo in Patients With Chronic Schizophrenia
A Phase 3 study testing risperidone in people with Schizophrenia and Psychotic Disorders, run by Janssen, LP.
Trial summary
The purpose of the study is to evaluate the effectiveness and safety of different doses of risperidone (an antipsychotic medication) compared with placebo and with a fixed 20 mg/day dose of a standard antipsychotic, haloperidol, in patients with chronic schizophrenia. 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
- 523 participants
- Where
- No sites listed yet
- Study dates
- Start not givento Jul 1991
- 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 diagnosis of chronic schizophrenic disorder, according to the Diagnostic and Statistical Manual of Mental Diseases, 3rd edition (DSM-III-R) criteria and are inpatients at the beginning of study
- total score on the PANSS (Positive and Negative Syndrome Scale for Schizophrenia) rating scale at study entry of >=60 and <=120
- females of childbearing age must demonstrate adequate birth control measures and have a negative pregnancy test before study entry.
Who cannot join
- Patients with mental disorders other than chronic schizophrenic disorder
- patients with clinically significant organic or neurological diseases
- patients with epilepsy
- history of alcohol or drug abuse history within the 6 months before study entry.
About this study
Official title: Risperidone Versus Haloperidol Versus Placebo in the Treatment of Chronic Schizophrenia
The purpose of the study is to evaluate the effectiveness and safety of different doses of risperidone (an antipsychotic medication) compared with placebo and with a fixed 20 mg/day dose of a standard antipsychotic, haloperidol, in patients with chronic schizophrenia.
Read the detailed description
Chronic schizophrenia is a longer-term condition that is characterized by a lack of drive, underactivity and slowness, and social withdrawal. As with the acute form of schizophrenia, delusions and hallucinations are common. This is a randomized, double-blind, parallel-group study to evaluate the effectiveness and safety of four dosages of risperidone (2, 6, 10 or 16 mg/day) compared with placebo and with a fixed 20 mg/day dose of a standard antipsychotic, haloperidol in patients with chronic schizophrenia who are in-patients at the beginning of the study.
The study is composed of two phases: a 1-week period, in which patients receive placebo and all current medication for schizophrenia treatment is stopped, followed by a double-blind treatment phase. The doses of study drug are increased progressively during the first week of the double-blind period and then remain constant for the next 7 weeks. The primary measures of effectiveness are the percentage of patients showing clinical improvement (reduction of >=20% from baseline) on the Positive and Negative Syndrome Scale for Schizophrenia (PANSS) and the total PANSS score, from baseline to end of double-blind treatment. The PANSS is a rating scale that measures the symptoms of schizophrenia. Safety evaluations include the incidence of adverse events, results of clinical laboratory tests (hematology, biochemistry, and urinalysis), plasma levels of risperidone, measurements of vital signs and body weight, physical examination and electrocardiogram (ECG) findings, neurological examinations, and the Extrapyramidal Symptoms Rating Scale (ESRS), a scale used to measure effects of antipsychotic medications on motor functions of the patient. The study hypothesis is that risperidone is more effective than placebo, as measured by clinical improvement on PANSS and the average total score for PANSS, in patients with chronic schizophrenia. Risperidone tablets, taken orally, starting with 1 mg twice daily, gradually increasing dose in Week 1 (except for 1 mg twice daily group), then 1, 3, 5, or 8 mg twice daily, continuing for 7 weeks. Haloperidol tablets, starting 1 mg twice daily and increasing to 10 mg twice daily (Week 1), continuing 10 mg twice daily for 7 weeks.
- Conditions
- Schizophrenia, Psychotic Disorders
- Being tested
- risperidone
- Keywords
- chronic schizophrenia, psychotic disorder, risperidone, antipsychotic agents
- 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.
risperidoneDrug
What is being measured
The primary outcome is the main question the study is designed to answer.
Percent of patients showing clinical improvement, defined as a >=20% reduction in the total PANSS score from baseline to end of double-blind treatment, and the mean change from baseline to end of double-blind treatment in total PANSS score.
Secondary outcomes (1)
Mean PANSS Positive Subscale Score; Mean PANSS Negative Subscale Score; mean PANSS General Psychopathology Subscale Score; CGI severity; CGI overall change from baseline; safety evaluations conducted throughout the study.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Nov 2005 (estimated)
- Study completionJul 1991
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for SchizophreniaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Enrolment
- 523 participants (actual)
Sponsor and investigators
- Lead sponsor
- Janssen, LP
- Sponsor type
- Industry (pharma, biotech, devices)
- Investigators
- Janssen, LP Clinical Trial, Study director, Janssen, LP
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00249132
- Sponsor's protocol ID
- CR006067
- Status last verified
- Feb 2011
- First submitted
- 4 Nov 2005
- Last updated
- 11 Feb 2011
- Results posted
- No
Publications
Marder SR, Meibach RC. Risperidone in the treatment of schizophrenia. Am J Psychiatry. 1994 Jun;151(6):825-35. doi: 10.1176/ajp.151.6.825.
PubMed 7514366Chouinard G, Jones B, Remington G, Bloom D, Addington D, MacEwan GW, Labelle A, Beauclair L, Arnott W. A Canadian multicenter placebo-controlled study of fixed doses of risperidone and haloperidol in the treatment of chronic schizophrenic patients. J Clin Psychopharmacol. 1993 Feb;13(1):25-40.
PubMed 7683702Marder SR, Davis JM, Chouinard G. The effects of risperidone on the five dimensions of schizophrenia derived by factor analysis: combined results of the North American trials. J Clin Psychiatry. 1997 Dec;58(12):538-46. doi: 10.4088/jcp.v58n1205.
PubMed 9448657
Study at a glance
From the registry record, last updated by the sponsor on 11 Feb 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Risperidone Versus Haloperidol Versus Placebo in the Treatment of Chronic Schizophrenia
- ClinicalTrials.gov ID
- NCT00249132
- Acronym / sponsor ID
- CR006067
- Conditions
- Schizophrenia, Psychotic Disorders
- Keywords
- chronic schizophrenia, psychotic disorder, risperidone, antipsychotic agents
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 523 participants (actual)
- Lead sponsor
- Janssen, LPIndustry (pharma, biotech, devices)
- Study completion
- Jul 1991 (actual)
- First posted
- 7 Nov 2005 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose of the study is to evaluate the effectiveness and safety of different doses of risperidone (an antipsychotic medication) compared with placebo and with a fixed 20 mg/day dose of a standard antipsychotic, haloperidol, in patients with chronic schizophrenia.
Detailed description
Chronic schizophrenia is a longer-term condition that is characterized by a lack of drive, underactivity and slowness, and social withdrawal. As with the acute form of schizophrenia, delusions and hallucinations are common. This is a randomized, double-blind, parallel-group study to evaluate the effectiveness and safety of four dosages of risperidone (2, 6, 10 or 16 mg/day) compared with placebo and with a fixed 20 mg/day dose of a standard antipsychotic, haloperidol in patients with chronic schizophrenia who are in-patients at the beginning of the study.
The study is composed of two phases: a 1-week period, in which patients receive placebo and all current medication for schizophrenia treatment is stopped, followed by a double-blind treatment phase. The doses of study drug are increased progressively during the first week of the double-blind period and then remain constant for the next 7 weeks. The primary measures of effectiveness are the percentage of patients showing clinical improvement (reduction of >=20% from baseline) on the Positive and Negative Syndrome Scale for Schizophrenia (PANSS) and the total PANSS score, from baseline to end of double-blind treatment. The PANSS is a rating scale that measures the symptoms of schizophrenia. Safety evaluations include the incidence of adverse events, results of clinical laboratory tests (hematology, biochemistry, and urinalysis), plasma levels of risperidone, measurements of vital signs and body weight, physical examination and electrocardiogram (ECG) findings, neurological examinations, and the Extrapyramidal Symptoms Rating Scale (ESRS), a scale used to measure effects of antipsychotic medications on motor functions of the patient. The study hypothesis is that risperidone is more effective than placebo, as measured by clinical improvement on PANSS and the average total score for PANSS, in patients with chronic schizophrenia. Risperidone tablets, taken orally, starting with 1 mg twice daily, gradually increasing dose in Week 1 (except for 1 mg twice daily group), then 1, 3, 5, or 8 mg twice daily, continuing for 7 weeks. Haloperidol tablets, starting 1 mg twice daily and increasing to 10 mg twice daily (Week 1), continuing 10 mg twice daily for 7 weeks.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Patients with diagnosis of chronic schizophrenic disorder, according to the Diagnostic and Statistical Manual of Mental Diseases, 3rd edition (DSM-III-R) criteria and are inpatients at the beginning of study
- total score on the PANSS (Positive and Negative Syndrome Scale for Schizophrenia) rating scale at study entry of >=60 and <=120
- females of childbearing age must demonstrate adequate birth control measures and have a negative pregnancy test before study entry.
Key exclusion criteria (4 listed)
- Patients with mental disorders other than chronic schizophrenic disorder
- patients with clinically significant organic or neurological diseases
- patients with epilepsy
- history of alcohol or drug abuse history within the 6 months before study entry.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| risperidone | Drug | – |
Primary outcome
Percent of patients showing clinical improvement, defined as a >=20% reduction in the total PANSS score from baseline to end of double-blind treatment, and the mean change from baseline to end of double-blind treatment in total PANSS score.
1 secondary outcome
Mean PANSS Positive Subscale Score; Mean PANSS Negative Subscale Score; mean PANSS General Psychopathology Subscale Score; CGI severity; CGI overall change from baseline; safety evaluations conducted throughout the study.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 11 Feb 2011.
- Results publication: PubMed 7514366Marder SR, Meibach RC. Risperidone in the treatment of schizophrenia. Am J Psychiatry. 1994 Jun;151(6):825-35. doi: 10.1176/ajp.151.6.825.
- Results publication: PubMed 7683702Chouinard G, Jones B, Remington G, Bloom D, Addington D, MacEwan GW, Labelle A, Beauclair L, Arnott W. A Canadian multicenter placebo-controlled study of fixed doses of risperidone and haloperidol in the treatment of chronic schizophrenic patients. J Clin Psychopharmacol. 1993 Feb;13(1):25-40.
- Results publication: PubMed 9448657Marder SR, Davis JM, Chouinard G. The effects of risperidone on the five dimensions of schizophrenia derived by factor analysis: combined results of the North American trials. J Clin Psychiatry. 1997 Dec;58(12):538-46. doi: 10.4088/jcp.v58n1205.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Janssen, LP Clinical Trial study director
Janssen, LP
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 3 inclusion and 4 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 11 Feb 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?
Percent of patients showing clinical improvement, defined as a >=20% reduction in the total PANSS score from baseline to end of double-blind treatment, and the mean change from baseline to end of double-blind treatment in total PANSS score.. 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 NCT00249132, which also lists 3 linked publications.
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 11 Feb 2011.