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

21 de maio de 2014 atualizado por: 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.

Visão geral do estudo

Status

Concluído

Condições

Intervenção / Tratamento

Descrição detalhada

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 de estudo

Intervencional

Inscrição (Real)

201

Estágio

  • Fase 4

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

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

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos e mais velhos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

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.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Quadruplicar

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: 001
Paliperidona ER 1,5 mg comprimido uma vez ao dia por 6 semanas
Medicamento: Paliperidona ER
Comprimido de 1,5 mg uma vez por dia durante 6 semanas
Medicamento: Paliperidone ER
6 mg tablet once daily for 6 weeks
Comparador Ativo: 002
Paliperidone ER 6 mg tablet once daily for 6 weeks
Medicamento: Paliperidona ER
Comprimido de 1,5 mg uma vez por dia durante 6 semanas
Medicamento: Paliperidone ER
6 mg tablet once daily for 6 weeks
Comparador de Placebo: 003
Placebo Once daily for 6 weeks
Medicamento: Placebo
Uma vez por dia durante 6 semanas

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
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).
Prazo: 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

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
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
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

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

Publicações e links úteis

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Links úteis

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo

1 de setembro de 2007

Conclusão Primária (Real)

1 de novembro de 2008

Conclusão do estudo (Real)

1 de novembro de 2008

Datas de inscrição no estudo

Enviado pela primeira vez

30 de agosto de 2007

Enviado pela primeira vez que atendeu aos critérios de CQ

30 de agosto de 2007

Primeira postagem (Estimativa)

3 de setembro de 2007

Atualizações de registro de estudo

Última Atualização Postada (Estimativa)

4 de junho de 2014

Última atualização enviada que atendeu aos critérios de controle de qualidade

21 de maio de 2014

Última verificação

1 de maio de 2014

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • CR013771
  • R076477SCH4012

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

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