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

25 november 2013 uppdaterad av: Johnson & Johnson Taiwan Ltd

An Open Label, Prospective, Non-Comparative Study to Evaluate Flexible Dose of Paliperidone ER and Clinical Response in the Treatment of Subjects With Schizophrenia

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.

Studieöversikt

Status

Avslutad

Betingelser

Intervention / Behandling

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Faktisk)

353

Fas

  • Fas 4

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år till 65 år (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Beskrivning

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

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: N/A
  • Interventionsmodell: Enskild gruppuppgift
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: Paliperidon Extended Release (ER)
Läkemedel: 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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Percentage of Responders as Per Clinical Global Impression - Improvement (CGI-I) Scale
Tidsram: Week 12
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.
Week 12

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Change From Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 12
Tidsram: Baseline, Week 12
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.
Baseline, Week 12
Number of Participants With Clinical Global Impression - Improvement (CGI-I) Score
Tidsram: Week 12
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.
Week 12
Change From Baseline in Personal and Social Performance (PSP) Score at Week 12
Tidsram: Baseline, Week 12
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).
Baseline, Week 12
Change From Baseline in Drug Attitude Inventory (DAI-10) Score at Week 12
Tidsram: Baseline, Week 12
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).
Baseline, Week 12

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Johnson & Johnson Taiwan Ltd

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart

1 maj 2008

Primärt slutförande (Faktisk)

1 april 2009

Avslutad studie (Faktisk)

1 april 2009

Studieregistreringsdatum

Först inskickad

12 april 2012

Först inskickad som uppfyllde QC-kriterierna

12 april 2012

Första postat (Uppskatta)

13 april 2012

Uppdateringar av studier

Senaste uppdatering publicerad (Uppskatta)

14 januari 2014

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

25 november 2013

Senast verifierad

1 november 2013

Mer information

Termer relaterade till denna studie

Nyckelord

Ytterligare relevanta MeSH-villkor

Andra studie-ID-nummer

  • CR015664
  • R076477SCH4034 (Annan identifierare: Johnson & Johnson Taiwan Ltd)
  • PAL-TWN-MA2 (Johnson & Johnson Taiwan Ltd)

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