A Study to Evaluate Flexible Dose of Paliperidone Extended Release (ER) and Clinical Response in Participants With Schizophrenia

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Johnson & Johnson Taiwan Ltd
ClinicalTrials.gov Identifier:
NCT01577160
First received: April 12, 2012
Last updated: November 25, 2013
Last verified: November 2013
  Purpose

The purpose of this study is to evaluate the effectiveness of paliperidone ER for the treatment of schizophrenia (psychiatric disorder with symptoms of emotional instability, detachment from reality, often with delusions and hallucinations, and withdrawal into the self) participants.


Condition Intervention Phase
Schizophrenia
Drug: Paliperidone ER
Phase 4

Study Type: Interventional
Study Design: Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: An Open Label, Prospective, Non-Comparative Study to Evaluate Flexible Dose of Paliperidone ER and Clinical Response in the Treatment of Subjects With Schizophrenia

Resource links provided by NLM:


Further study details as provided by Johnson & Johnson Taiwan Ltd:

Primary Outcome Measures:
  • Percentage of Responders as Per Clinical Global Impression - Improvement (CGI-I) Scale [ Time Frame: Week 12 ] [ Designated as safety issue: No ]
    The CGI-I is a 7-point scale that requires the clinician to assess how much the participant's illness has improved or worsened relative to a baseline state at the beginning of the intervention and rated as: 1=very much improved; 2=much improved; 3=minimally improved; 4=no change; 5=minimally worse; 6=much worse; 7=very much worse. Responders were defined as participants evaluated as "1: very much improved" or "2: much improved" on the CGI-I scale at Week 12.


Secondary Outcome Measures:
  • Change From Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    The CGI-S rating scale is a 7 point global assessment that measures the clinician's impression of the severity of illness exhibited by a participant. A rating of 1 is equivalent to "Normal, not at all ill" and a rating of 7 is equivalent to "Among the most extremely ill participants". Higher scores indicate worsening.

  • Number of Participants With Clinical Global Impression - Improvement (CGI-I) Score [ Time Frame: Week 12 ] [ Designated as safety issue: No ]
    The CGI-I is a 7-point scale that requires the clinician to assess how much the participant's illness has improved or worsened relative to a baseline state at the beginning of the intervention and rated as: 1=very much improved; 2=much improved; 3=minimally improved; 4=no change; 5=minimally worse; 6=much worse; 7=very much worse.

  • Change From Baseline in Personal and Social Performance (PSP) Score at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    The PSP is 100-point validated clinician-rated scale that assesses degree of difficulty in 4 areas of functioning: socially useful activities, personal and social relationships, self-care, disturbing and aggressive behaviors rated on 6-point scale (1=absent to 6=very severe).Total transformed score from 1 to 100 is generated from raw score based on clinical interpretation of scores generated in 4 areas of functioning, with higher transformed score indicating better function. Total score is divided into 3 levels: 71-100 (mild difficulty); 31-70 (marked difficulty) and 1-30 (severe difficulty).

  • Change From Baseline in Drug Attitude Inventory (DAI-10) Score at Week 12 [ Time Frame: Baseline, Week 12 ] [ Designated as safety issue: No ]
    The DAI-10 is a 10-item questionnaire to assess 1) subjective experience of drug and 2) attitudes and beliefs toward neuroleptics which may influence compliance in schizophrenia participants. It is the binary scale assessing the participant's subjective response (SR). A 'compliant' response is scored as +1; a dysphoric response is scored as -1. A positive sum of items indicates a positive SR; a negative sum of scores indicates a negative SR (non-compliant). The final score is the grand total of the positive and negative points. Total score ranges from (-) 10 to (+) 10, higher score indicates positive SR (compliant) and lower score indicates negative SR (non-compliant).


Enrollment: 353
Study Start Date: May 2008
Study Completion Date: April 2009
Primary Completion Date: April 2009 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Paliperidone Extended Release (ER) Drug: Paliperidone ER
Participants will receive paliperidone ER 6 milligram (mg) orally once daily up to Week 12. Dose adjustment will be done at Week 2, 4 and 8 as per investigator's discretion based upon participant's CGI-I score.

Detailed Description:

This is a multi-center (when more than one hospital or medical school team work on a medical research study), open-label (all people know the identity of the intervention), prospective (study following participants forward in time), non-comparative study. The total study duration will be 12 weeks for each participant and will include following visits: Screening, Week 2, 4, 8, and 12 (end of treatment or early withdrawal). The effectiveness of paliperidone ER will be evaluated at Week 12 by the proportion of responders who are evaluated as "very much improved" or "much improved" on the Clinical Global Impression improvement (CGI-I) Scale. Participants' safety will also be monitored throughout the study.

  Eligibility

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

Inclusion Criteria:

  • Participants who are diagnosed with schizophrenia (according to Diagnostic and Statistical Manual of Mental Disorders [Edition 4] criteria)
  • Participants with Clinical Global Impression-Severity (CGI-S) score greater than or equal to 4 points (moderately ill) at Screening
  • Childbearing potential women who consented to the consistent use of the acceptable contraception (oral contraceptive, contraceptive injection, intrauterine device, double barrier method and contraceptive patch)
  • Participants who are capable of and willing to fill out the questionnaire for themselves
  • Participants who are compliant with self-medication or can receive consistent help or support

Exclusion Criteria:

  • Participants with the past history of neuroleptic malignant syndrome (high fever, rigid muscles, shaking, confusion, sweating more than usual, increased heart rate or blood pressure, or muscle pain or weakness)
  • Participants with allergy or hypersensitivity to risperidone or paliperidone
  • Participants who have taken clozapine, or have been exposed to the study drug within one month before screening
  • Participants who have been treated with the long acting antipsychotic injection within 28 days
  • Participants with significant risk including suicide or aggressive behavior
  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 ClinicalTrials.gov identifier: NCT01577160

Sponsors and Collaborators
Johnson & Johnson Taiwan Ltd
Investigators
Study Director: Johnson & Johnson Taiwan Ltd Clinical Trial Johnson & Johnson Taiwan Ltd
  More Information

No publications provided

Responsible Party: Johnson & Johnson Taiwan Ltd
ClinicalTrials.gov Identifier: NCT01577160     History of Changes
Other Study ID Numbers: CR015664, R076477SCH4034, PAL-TWN-MA2
Study First Received: April 12, 2012
Results First Received: November 25, 2013
Last Updated: November 25, 2013
Health Authority: Taiwan : Food and Drug Administration

Keywords provided by Johnson & Johnson Taiwan Ltd:
Schizophrenia
Paliperidone Extended Release (ER)

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 September 14, 2014