A Study of Flexibly Dosed Paliperidone Extended Release Tablets in Patients With Schizophrenia

This study has been completed.
Sponsor:
Information provided by:
Xian-Janssen Pharmaceutical Ltd.
ClinicalTrials.gov Identifier:
NCT01541371
First received: February 23, 2012
Last updated: March 6, 2012
Last verified: March 2012
  Purpose

The purpose of this study is to evaluate efficacy of treatment with paliperidone extended-release (ER) tablets in patients with schizophrenia who were not satisfied with other antipsychotics (Olanzapine, Quetiapine and Risperidone) they had been taking. The safety and tolerability of paliperidone ER tablets will also be assessed.


Condition Intervention Phase
Schizophrenia
Drug: Paliperidone ER
Phase 3

Study Type: Interventional
Study Design: Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: Evaluation of Efficacy, Safety and Tolerability After Switching to Flexible Dosage of Paliperidone Extended Release Tablets in Treatment of Patients With Non-acute Phase of Schizophrenia in an Open-Label, Prospective Study

Resource links provided by NLM:


Further study details as provided by Xian-Janssen Pharmaceutical Ltd.:

Primary Outcome Measures:
  • Changes in Positive and Negative Symptom Scale (PANSS) total scores [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The PANSS consistes of a total scores (all 30 items) and scores in 3 subscales, positive subscale (7 items), negative subscale (7 items), general psychopathology subscale (16 items). Patients were to be rated in every scale rate from 1(absent) to 7 (extremely serious).


Secondary Outcome Measures:
  • Change in PANSS subscale scores [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The PANSS consistes of a total scores (all 30 items) and scores in 3 subscales, positive subscale (7 items), negative subscale (7 items), general psychopathology subscale (16 items). Patients were to be rated in every scale rate from 1(absent) to 7 (extremely serious).

  • Change in the Clinical Global Impressions (CGI) scale [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The CGI scale is a 7-point scale rating from 1(normal, not at all illness) to 7 (extremely ill). The CGI scales are commonly used measures of symptom severity, treatment response and the efficacy of treatments of patients.

  • Change in personal and social function by Personal and Social Performance (PSP) scale [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The PSP scale with its four sub dimensions was used to evaluate the severity of psychosocial functioning in patient within 1month, consisting of a) Socially useful activities; b) personal and social relationships; c) self-care; d) disturbing and aggressive behavior. The scores ranged from 1 to 100, the severity in every sub dimension was divided into 10 equivalent scores range (i, absent-vi, extremely). Score 71-100 indicated mild difficult; score 31-70 various degree of disability; Score≤30 extremely illness, so that intense care was needed.

  • Change in patient satisfaction with treatment [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The degrees of satisfaction with present treatment were assessed by a 5-point scale (very satisfied, satisfied, in general, dissatisfied, very dissatisfied).

  • Change in sleep quality and level of daytime sleepiness [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The quality of sleep and level of daytime sleepiness in patients were to be assessed, as determined by Visual Analogue scale.

  • Percentage of patients with a ≥20% reduction of PANSS total scores at endpoint from baseline [ Time Frame: Baseline and Week 12 ] [ Designated as safety issue: No ]
    The PANSS consistes of a total scores (all 30 items) and scores in 3 subscales, positive subscale (7 items), negative subscale (7 items), general psychopathology subscale (16 items). Patients were to be rated in every scale rate from 1(absent) to 7 (extremely serious).


Enrollment: 408
Study Start Date: July 2008
Study Completion Date: September 2009
Primary Completion Date: September 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Paliperidone ER Drug: Paliperidone ER
Type= exact number, unit= mg, number= 3, 6 or 9, form= tablet, route= oral use. Paliperidone ER tablet(s), with dose ranged from 3 mg to 12 mg once daily, for 12 weeks.

Detailed Description:

This was a 12-week study designed to determine the efficacy, tolerability and safety of flexible dosage of paliperidone extended-release (ER) tablets in treatment of patients with schizophrenia not satisfied with other prior antipsychotics. During the period of study, the dose of paliperidone ER tablets was adjusted in the range of 3mg-12mg/day, and investigator could select dose for patients by individual dose adjustment. Initial dose for paliperidone extended-release was 6mg/day.

  Eligibility

Ages Eligible for Study:   18 Years to 65 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Meet Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) diagnosis criteria of schizophrenia
  • Patient receiving full course of treatment (6-8 weeks) at correct dose (dose range recommended by the instruction) of Risperdal, Zyprexa or Seroquel before enrollment, was poorly controlled and had to change medication because of unsatisfying efficacy, tolerability or safety issues, or other reason
  • Patient in the non-acute phase during screening received treatment with any of above three antipsychotics within 4 weeks before enrollment and state of illness was relatively stable
  • Patient and his/her legal guardian could read, understand and sign informed consent (signed by both)

Exclusion Criteria:

  • Patient received treatment with Clozapine or Risperidone microspheres for injection (Hengde) within 3 months before screening
  • Patient received any typical long-acting antipsychotics within 1 month before screening
  • Patient had refractory schizophrenia (previous treatment with unsatisfied efficacy of two or more than two kinds of antipsychotics with different chemical structure after adequate dose and duration)
  • Patient had history of seizure except febrile convulsion
  • Patient received electric shock treatment within 1 month before screening
  • Patient meeting any additional exclusion criteria as specified in the study protocol
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT01541371

Sponsors and Collaborators
Xian-Janssen Pharmaceutical Ltd.
Investigators
Study Director: Xian-Janssen Pharmaceutical Ltd., China Clinical Trial Xian-Janssen Pharmaceutical Ltd.
  More Information

No publications provided

Responsible Party: VP CHINA R D AND SCIENTIFIC AFFAIRS, Xian-Janssen Pharmaceutical Ltd., China
ClinicalTrials.gov Identifier: NCT01541371     History of Changes
Other Study ID Numbers: CR016165, R076477-SCH-3035
Study First Received: February 23, 2012
Last Updated: March 6, 2012
Health Authority: China: Food and Drug Administration

Keywords provided by Xian-Janssen Pharmaceutical Ltd.:
Schizophrenia
Paliperidone extended-release tablets

Additional relevant MeSH terms:
Schizophrenia
Schizophrenia and Disorders with Psychotic Features
Mental Disorders
9-hydroxy-risperidone
Antipsychotic Agents
Tranquilizing Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Pharmacologic Actions
Central Nervous System Agents
Therapeutic Uses
Psychotropic Drugs

ClinicalTrials.gov processed this record on May 21, 2013