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An Efficacy and Safety Study of One Dosage of Paliperidone Extended Release (ER) in Treating Patients With Schizophrenia

21 maggio 2014 aggiornato da: Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

A Randomized, Double-Blind, Placebo- and Active-Controlled, Parallel-Group Study to Evaluate the Efficacy and Safety of a Fixed Dosage of 1.5 mg/Day of Paliperidone Extended Release (ER) in the Treatment of Subjects With Schizophrenia

The purpose of this study is to assess the efficacy and safety of 1.5 mg/day dose of paliperidone Extended Release (ER) as compared with placebo when used to treat patients with schizophrenia.

Panoramica dello studio

Stato

Completato

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Currently, treatment of acute symptoms in schizophrenia is less than ideal, up to one-third of patients with schizophrenia do not respond to current treatments, and poor drug tolerability can decrease a patient's ability to remain on treatment. Paliperidone ER doses in the range of 3 mg/day to 12 mg/day have been approved for the treatment of patients with schizophrenia. A lower dosage form of paliperidone ER be efficacious and may reduce the risk of certain adverse effects. This study will evaluate the efficacy of 1 fixed (ie, it does not change during the study) dosage of paliperidone ER (1.5 mg/day) compared with placebo. One fixed dosage of paliperidone ER (6.0 mg/day) will be given to some patients as an active (it has already been shown to have efficacy) control. This is a multicenter, double-blind (neither the patient nor the study-site personnel know which treatment the patient is receiving), randomized (patients are assigned to a treatment group by chance), placebo-controlled (some patients will receive placebo and no active drug), parallel-group (patients in all groups follow the same study design) study in adults who were diagnosed with schizophrenia at least 1 year before screening and who are experiencing an acute episode. The study starts with an up-to-5-day screening phase to find out if the patient is eligible for the study. The screening phase includes a 3- to 5-day washout (the medication dosage is tapered down and finally stopped) of any medications that are being taken by a patient but that are not allowed during the study. A 6-week double-blind treatment phase follows and finishes with an end-of-study visit. A post-study visit to collect additional safety data will be scheduled for 1 week after a patient receives his or her last dose of study drug. The length of the entire study is about 8 weeks. Patients who withdraw from the study before completing the double-blind treatment phase will complete the end-of-study visit procedures at the time they withdraw and the post-study visit 1 week after receiving their last dose of study drug. For all patients leaving the study, the investigator will make every effort to see that they receive adequate continuity of care. At baseline (the visit just before a patient takes the first dose of study drug), all patients will be randomly assigned to 1 of the 3 possible treatment groups to receive paliperidone ER 1.5 mg/day, paliperidone ER 6 mg/day, or placebo once daily for 6 weeks. Patients must be voluntary inpatients at the time of randomization, and they must remain in the hospital for a minimum of 8 days. Efficacy will be measured using the following rating scales: the Positive and Negative Syndrome Scale (PANSS), the Clinical Global Impression-Severity (CGI-S), the Personal and Social Performance Scale (PSP), and the Medical Outcomes Study Short Form Health Survey-36 (MOS SF-36). Safety will be evaluated using physical examinations, ECGs, clinical laboratory testing (hematology, serum chemistry, and urinalysis), testings for pregnancy, and monitoring for adverse events including extrapyramidal symptoms (EPS) using the Abnormal Involuntary Movement Scale (AIMS), Barnes Akathisia Rating Scale (BARS), and Simpson-Angus Rating Scale (SAS). The study hypothesis is that Paliperidone ER at 1.5 mg per day will be effective in the treatment of schizophrenia as measured by the change in total PANSS score between baseline and endpoint in comparison with placebo. Oral paliperidone ER 1.5 mg or 6.0 mg tablets or matching oral placebo tablets taken once daily in the morning for 6 weeks.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

201

Fase

  • Fase 4

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

  • India
      • Calicut, India
      • Hyderabad, India
      • Mumbai, India
      • Pune, India
      • Varanasi, India
  • Stati Uniti
    • California
      • Cerritos, California, Stati Uniti
      • Torrance, California, Stati Uniti
    • District of Columbia
      • Washington, District of Columbia, Stati Uniti
    • Florida
      • Bradenton, Florida, Stati Uniti
      • Leesburg, Florida, Stati Uniti
    • Georgia
      • Atlanta, Georgia, Stati Uniti
    • Maryland
      • Rockville, Maryland, Stati Uniti
    • New Jersey
      • Nutley, New Jersey, Stati Uniti
    • New York
      • Cedarhurst, New York, Stati Uniti
      • Hollis, New York, Stati Uniti
    • Oklahoma
      • Moore, Oklahoma, Stati Uniti
    • Texas
      • Austin, Texas, Stati Uniti
  • Taiwan
      • Hualien, Taiwan
      • Tainan, Taiwan
      • Taipei, Taiwan

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

18 anni e precedenti (Adulto, Adulto più anziano)

Accetta volontari sani

No

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  • Diagnosed with schizophrenia according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) (295.10, 295.20, 295.30, 295.60, 295.90) at least 1 year before screening
  • Experiencing an acute episode with a total PANSS score at screening of between 70 and 120
  • Are otherwise physically healthy
  • Agree to at least 8 days of voluntary hospitalization.

Exclusion Criteria:

  • Active comorbid DSM-IV axis I diagnosis other than schizophrenia (nicotine and caffeine dependence are not exclusionary)
  • Treatment with antidepressants (unless a subject has been on a stable dosage for at least 3 months before baseline) other than monoamine oxidase inhibitors
  • DSM-IV diagnosis of substance dependence within 6 months before screening evaluation (nicotine and caffeine dependence are not exclusionary)
  • Any medical condition that could potentially alter the absorption, metabolism, or excretion of the study medication, such as Crohn's disease, liver disease, or renal disease
  • Relevant history of any significant or unstable cardiovascular, respiratory, neurologic (including seizures or significant cerebrovascular), renal, hepatic, endocrine, or immunologic disease.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Quadruplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 001
Paliperidone ER 1,5 mg compressa una volta al giorno per 6 settimane
Droga: Paliperidone E.R
Compressa da 1,5 mg una volta al giorno per 6 settimane
Droga: Paliperidone ER
6 mg tablet once daily for 6 weeks
Comparatore attivo: 002
Paliperidone ER 6 mg tablet once daily for 6 weeks
Droga: Paliperidone E.R
Compressa da 1,5 mg una volta al giorno per 6 settimane
Droga: Paliperidone ER
6 mg tablet once daily for 6 weeks
Comparatore placebo: 003
Placebo Once daily for 6 weeks
Droga: Placebo
Una volta al giorno per 6 settimane

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change From Baseline in PANSS Total Score at the End of the Double-blind Treatment Phase (Week 6 or the Last Assessment Obtained After the Baseline Assessment).
Lasso di tempo: Baseline, 6 weeks
The Positive and Negative Syndrome Scale (PANSS) is a tool used by psychiatrists to measure the symptoms of psychosis experienced by a patient with schizophrenia. It includes 30 items that produce a total score ranging from a minimum of 30 (indicating least severe symptoms of illness) to a maximum of 120 (indicating most severe symptoms of illness). A negative change in score from baseline to end point indicates improvement in the symptoms of illness.
Baseline, 6 weeks

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change From Baseline to the End of the Double-blind Treatment Phase (Week 6 or the Last Assessment Obtained After the Baseline Assessment) in CGI-S
Lasso di tempo: Baseline, 6 weeks
The Clinical Global Impression-Severity (CGI-S) rating scale is used by psychiatrists to rate the severity of a patient's psychotic condition on a 7-point scale ranging from 1 (not ill) to 7 (extremely severe). The scale permits a global evaluation of the patient's condition at a given time.
Baseline, 6 weeks
Change From Baseline to End Point (Week 6 or the Last Assessment After the Baseline Assessment) in PSP Score
Lasso di tempo: Baseline, 6 weeks
The Personal and Social Performance (PSP) scale assesses the degree of difficulty (ranging from i [absent] to vi [very severe]) a patient exhibits over a 1-month period in socially useful activities, personal and social relationships, self care, and disturbing and aggressive behavior. The overall score ranges from 1 to 100. Patients with scores of 71 to 100 have a mild degree of difficulty; patients with scores from 31 to 70 have various degrees of disability; and patients with scores of 30 or less function so poorly as to require intensive supervision.
Baseline, 6 weeks
Change From Baseline to End Point (Week 6 or the Last Assessment After the Baseline Assessment) in MOS SF-36 Physical Component Summary Scale Score
Lasso di tempo: Baseline, 6 weeks
The Medical Outcomes Study Short Form Health Survey-36 (MOS SF-36) is a measure of patient-reported health status. It is a 36-item questionnaire measuring 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health). Each domain score ranges from 0 (worst) to 100 (best), with higher scores reflecting better health-related functional status. Two summary scale scores are computed based on weighted combinations of the 8 subscale scores: the Physical Component Summary and the Mental Component Summary.
Baseline, 6 weeks
Change From Baseline to End Point (Week 6 or the Last Assessment After the Baseline Assessment) in MOS SF-36 Mental Component Summary Scale Score
Lasso di tempo: Baseline, 6 weeks
The MOS SF-36 is a measure of patient-reported health status. It is a 36-item questionnaire measuring 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional, and mental health). Each domain score ranges from 0 (worst) to 100 (best), with higher scores reflecting better health-related functional status. Two summary scale scores are computed based on weighted combinations of the 8 domain scores: the Physical Component Summary and the Mental Component Summary.
Baseline, 6 weeks

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Johnson & Johnson Pharmaceutical Research & Development, L.L.C.

Pubblicazioni e link utili

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Collegamenti utili

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio

1 settembre 2007

Completamento primario (Effettivo)

1 novembre 2008

Completamento dello studio (Effettivo)

1 novembre 2008

Date di iscrizione allo studio

Primo inviato

30 agosto 2007

Primo inviato che soddisfa i criteri di controllo qualità

30 agosto 2007

Primo Inserito (Stima)

3 settembre 2007

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Stima)

4 giugno 2014

Ultimo aggiornamento inviato che soddisfa i criteri QC

21 maggio 2014

Ultimo verificato

1 maggio 2014

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • CR013771
  • R076477SCH4012

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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