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Comparison of Cognitive Functions of Schizophrenic Patients Treated With Sertindole Versus Risperidone

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2009 by Sheba Medical Center.
Recruitment status was:  Recruiting
Information provided by:
Sheba Medical Center Identifier:
First received: May 30, 2007
Last updated: March 24, 2009
Last verified: March 2009

In this study we intend to compare the effect of Sertindole to that of Risperidone on cognitive impairment in schizophrenia.

Hypothesis: Sertindole will be as effective as Risperidone for treating cognitive impairment in schizophrenia and with fewer side effects.

Condition Intervention Phase
Drug: Sertindole
Drug: Risperidone
Phase 4

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Comparison of Cognitive Functions of Schizophrenic Patients Treated With Sertindole Versus Risperidone

Resource links provided by NLM:

Further study details as provided by Sheba Medical Center:

Primary Outcome Measures:
  • cognitive functioning [ Time Frame: 24 weeks ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Discontinuation due to all causes, symptomatology and adverse events. [ Time Frame: 24 weeks ] [ Designated as safety issue: No ]

Estimated Enrollment: 60
Study Start Date: October 2008
Estimated Primary Completion Date: October 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Sertindole Drug: Sertindole
Oral (tablets), 16-24 mg QD (once a day) for 12 weeks.
Other Name: Serdolect
Active Comparator: Risperidone Drug: Risperidone
Oral (tablets), 4-8 mg QD (once a day) for 12 weeks.
Other Names:
  • Rispond
  • Risperdal
  • Risperidex

  Hide Detailed Description

Detailed Description:


In this proposal we intend to compare the effect of Sertindole to that of Risperidone on cognitive impairment in schizophrenia.


Sertindole will be as effective as Risperidone for treating cognitive impairment in schizophrenia and with fewer side effects.

Study Drugs:

Risperidone is an "atypical" antipsychotic drug, being used widely all over the world. In Israel, Risperidone has been the first line drug for schizophrenia at the past decade. This drug was shown to be efficacious with bearable side effects. The side effects include: tiredness, dizziness, muscle dystonia, increased appetite and weight, dry mouth, constipation, tremor, orthostatic hypotension.

Sertindole is another "atypical" antipsychotic drug. The drug has been approved by the Israeli Ministry of Health. Sertindole was initially marketed in Britain on 1996. It was taken off the market, following several reports of cardiovascular deaths suspected to be caused by the drug (i.e. prolongation of the QT-interval in the ECG, suspected to cause ventricular arrhythmias). After renewing research, investigating more then 10000 patients for several years, the drug was found to be as safe as other antipsychotics. On 2002, the European union decided to put the Sertindole to the market.

Common Sertindole side effects are: dizziness, parasthesias, edema, orthostatic hypotension, nasal congestion, dyspnea, dry mouth, decreased semen volume, increased weight, prolongation of QT-interval in ECG.

Subjects and methods:

Overview: We propose to perform a multi-center, randomized, parallel-group, open-label study administering Sertindole or Risperidone to patients with schizophrenia, N=60. The primary outcome measure will be cognitive functioning. Secondary outcome measures will be discontinuation due to all causes, symptomatology and adverse events.

Procedure and Instruments:


Sixty male and female subjects will be recruited from patients treated in the inpatient and outpatient units in the Department of Psychiatry of the Sheba Medical Center, the Beer-Yaakov Mental Health Center and the Kfar Shaul Mental Health Center. Before inclusion into the study, patients will receive a careful medical workup, including complete medical history, physical examination; routine blood chemistry and blood count, EKG and urinalysis.

Inclusion and exclusion criteria will be based on the SmPCs of both compounds.


The doses of study medication used will be based on the doses currently recommended by the manufacturers: Sertindole: 16-20 mg/day (in exceptional cases subjects will receive 24 mg/day, based on the clinical reasoning) or Risperidone 4-8 mg/day.


Duration of randomized, open-label treatment will be 12 weeks. Following this phase, an additional 12 week phase with Sertindole will be offered to subjects who were previously randomized to the Risperidone arm.. As per IRB requirements, patients responding to Sertindole will be eligible to receive Sertindole as compassionate care(in accordance wit MOH requirements for compassionate care)

Assessment instruments:

  • the following assessment scales will be administered before randomization, after 12 weeks of randomized treatment, and , if applicable, following 12 weeks of with Sertindole Positive symptoms will be assessed by PANSS (Positive and Negative Syndrome Scale)
  • Negative symptoms will be assessed by SANS (Scale of the Assessment of Negative Symptoms)
  • Cognitive functioning will be assessed using MATRICS (Measurement And Treatment Research to Improve Cognition in Schizophrenia).
  • Movement disorders will be assessed by the Simpson Angus Scale and AIMS (Abnormal Involuntary Movement Scale) scales
  • Blood levels of glucose, triglycerides and cholesterol
  • Weight, height, and vital signs will be measured and recorded
  • ECG

Tests which are language-sensitive have been standardized and will be in assessed in Hebrew. Assessment will be made by a rater who is blinded to the treatment.

Concomitant Medications:

Patients receiving mood-stabilizers, anti-depressants, sedatives and hypnotics will be allowed to participate in the study only if they are on a stable dose of these medications for 2 weeks before entering the trial. After randomization, changes in the doses of concomitant medications will be recorded and analyzed at the end of the study.


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Genders Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients suffering from Schizophrenia (DSM IV).
  • Failure of at least one previous antipsychotic for intolerance.
  • Psychotic symptoms that are not secondary to a general medical condition or substance abuse.
  • Ages between 18-65 years old.
  • Patients receiving other psychotropic medications (anti-depressants, mood stabilizers, sedatives, hypnotics) must be on a stable dose for at least 2 weeks before entering the trial.
  • Able to understand and sign an informed consent form.

Exclusion Criteria:

  • Patients suffering from psychotic disorders caused by a general medical condition.
  • Patients having high suicidal risk, as measured by score of 2 or more in CDSS - Calgary Depression Scale for Schizophrenia.
  • Patients suffering from an unstable clinically significant medical condition (endocrine, nutritional, hepatic, urinary).
  • Significant cardiovascular illness, and/or QT prolongation at screening (more then 450 msec for male or 470 msec for female).
  • Patients suffering from a malignancy or neuro-degenerative illness (e.g. Parkinsons' Disease)
  • Patients suffering from organic brain disorders, including epilepsy and mental retardation.
  • Patients suffering from a clinically significant mood disorder.
  • Pregnancy.
  • History of drug or alcohol dependence within the last year.
  • Previous documented non-response to Risperidone.
  • Patients using medicinal products that are contraindicated with sertindole and/or Risperidone.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00480844

Department of Psychiatry of the Sheba Medical Center
Ramat Gan, Tel Hashomer, Israel, 52621
Beer-Yaakov Mental Health Center
Beer-Yaakov, Israel, 70350
Kfar Shaul Mental Health Center
Jerusalem, Israel, 91060
Sponsors and Collaborators
Sheba Medical Center
Principal Investigator: Mark Weiser, Dr Shaba Medical Center, Tel-Aviv University Sackler School of Medicine
  More Information

Responsible Party: Prof. Mark Weiser, Sheba Medical Center Identifier: NCT00480844     History of Changes
Other Study ID Numbers: SHEBA-07-4639-JL-CTIL 
Study First Received: May 30, 2007
Last Updated: March 24, 2009
Health Authority: Israel: Israeli Health Ministry Pharmaceutical Administration

Keywords provided by Sheba Medical Center:
cognitive impairment

Additional relevant MeSH terms:
Schizophrenia Spectrum and Other Psychotic Disorders
Mental Disorders
Serotonin Antagonists
Serotonin Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Psychotropic Drugs
Dopamine Antagonists
Dopamine Agents processed this record on January 14, 2017