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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 oppdatert 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.

Studieoversikt

Status

Fullført

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

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.

Studietype

Intervensjonell

Registrering (Faktiske)

353

Fase

  • Fase 4

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 65 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

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

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Paliperidon Extended Release (ER)
Legemiddel: 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.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Percentage of Responders as Per Clinical Global Impression - Improvement (CGI-I) Scale
Tidsramme: 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

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Change From Baseline in Clinical Global Impression - Severity (CGI-S) Score at Week 12
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Johnson & Johnson Taiwan Ltd

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. mai 2008

Primær fullføring (Faktiske)

1. april 2009

Studiet fullført (Faktiske)

1. april 2009

Datoer for studieregistrering

Først innsendt

12. april 2012

Først innsendt som oppfylte QC-kriteriene

12. april 2012

Først lagt ut (Anslag)

13. april 2012

Oppdateringer av studieposter

Sist oppdatering lagt ut (Anslag)

14. januar 2014

Siste oppdatering sendt inn som oppfylte QC-kriteriene

25. november 2013

Sist bekreftet

1. november 2013

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • CR015664
  • R076477SCH4034 (Annen identifikator: Johnson & Johnson Taiwan Ltd)
  • PAL-TWN-MA2 (Johnson & Johnson Taiwan Ltd)

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