- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT01625793
Inflammation, Stress & Social Behavior: Using Ecological Assessments & Model Systems to Enhance Relevance to Health Outcomes
18 de julho de 2013 atualizado por: University of Arizona
Inflammation, Stress and Social Behavior: Using Ecological Assessments and Model Systems to Enhance Relevance to Health Outcomes
The current study has been designed to identify behavioral and physiological mechanisms through which positive social connectivity (PCS) and negative social processes (NSP) interact with psychosocial stress to promote resilience in the context of illness.
The investigators model inflammation (a central element of all disease states) through the use of treatment with interferon (IFN)-alpha, which provides a standardized regimen of chronic cytokine exposure known to produce profound behavioral disturbances, including depression, fatigue and sickness, in a high percentage of individuals.
To objectively assess social processes, the current project will employ the Electronically Activated Recorder (EAR), which periodically and unobtrusively records snippets of ambient sounds in people's momentary environments.
To objectively assess behavioral and physiological responses to psychosocial stress the current project will employ the Trier Social Stress Test (TSST), a standardized laboratory stressor known to reliably activate behavioral, neuroendocrine and inflammatory responses.
These novel methodologies and model systems will be employed to test the hypotheses that (a) pre-existing affiliative and prosocial behavior will promote resilience in the context of chronic inflammation and that (b) -conversely-chronic inflammation will reduce affiliative and prosocial behavior via effects on stress reactivity, neuroendocrine function and sleep.
Finally, it will explore (c) the potential mediating role of stress physiology.
To test these hypotheses, 110 subjects with chronic hepatitis C virus infection will be randomized to receive treatment with pegylated IFN-alpha plus ribavirin or to postpone treatment for 6 weeks: 55 subjects at University of Arizona and 55 subjects at Emory University.
Prior to randomization and 6 weeks later all subjects will be evaluated with the EAR and sleep actigraphy in their home environments and will undergo TSST and 14 hour diurnal neuroendocrine and immune measurement.
Visão geral do estudo
Tipo de estudo
Intervencional
Estágio
- Não aplicável
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
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Arizona
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Tucson, Arizona, Estados Unidos, 85724
- University of Arizona
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Georgia
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Atlanta, Georgia, Estados Unidos
- Emory University
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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
21 anos a 65 anos (Adulto, Adulto mais velho)
Aceita Voluntários Saudáveis
Não
Gêneros Elegíveis para o Estudo
Tudo
Descrição
Inclusion Criteria:
- Age 21-65 years including males, females and minorities
- Ability to speak and read remedial English
- Serum positive for either anti-HCV antibodies or HCV-RNA positive by PCR
- Compensated liver disease with the following minimum hematologic and biochemical criteria: hemoglobin ≥13 g/dl for males; ≥12 g/dl for females, white blood cell count > 3,000/mm3, neutrophil count >1,5000/mm3, platelets > 100,000/mm3, prothrombin time ≤ 2 seconds prolonged compared to control, or equivalent INR ratio, albumin stable and within normal limits, serum creatinine within normal limits, thyroid-stimulating hormone within normal limits, direct bilirubin ≤ 0.3 mg/dl or within 20% of upper limit of normal (ULN) for local laboratory, indirect bilirubin ≤ 0.8 mg/dl or within 20% of ULN for local laboratory, fasting blood sugar ≤ 115 mg/dl or within 20% of ULN for non-diabetic patients
- Negative pregnancy test for women of childbearing potential, and confirmation and documentation that adequate contraception or monogamous relationship with a male partner who has had a vasectomy during the treatment period and for 6 months after discontinuation of therapy
- Not breastfeeding
- Documentation and confirmation of adequate contraception in sexually active males
- Free from all psychotropic medications for 14 days prior to baseline visit (8 weeks for fluoxetine)
Exclusion Criteria:
- Evidence of untreated or poorly controlled endocrine, cardiovascular, hematological, renal, or neurological disease
- Evidence of decompensated liver disease (such as a history or presence of ascites, bleeding varices, spontaneous encephalopathy)
- History of narcolepsy, PLMS or sleep apnea (or documented during the adaptation night)
- History of CNS trauma or active seizure disorder requiring medication
- Any cause for liver disease other than chronic hepatitis C, such as co-infection with hepatitis B virus and/or human immunodeficiency virus, hemochromatosis, or Wilson's diseases
- Prior treatment with ribavirin or other antiviral or immunomodulatory drugs, including corticosteroids within 6 months of entry into protocol
- Chronic use of agents known to affect monoamine metabolism/function (and hence potentially affect the TSST), including, but not limited to, alpha- and beta-receptor agonists and antagonists, methylphenidate hydrochloride, dextroamphetamine, midodrine hydrochloride, theophylline, ephedrine, systemic antifungal azoles, sumatriptan succinate
- Psychotropic medications within 14 days prior to baseline visit (8 weeks for fluoxetine)
- Clinical gout
- Hypersensitivity to alpha interferon or ribavirin
- Hemoglobinopathies (e.g. thalassemia)
- A positive pregnancy test
- Organ transplants
- A score of <24 on the Mini Mental Status Exam (MMSE)
- Active, effective treatment of depression with an antidepressant within the past six months
- Actively meet criteria for major depression within the past six months
- Meet criteria for schizophrenia or bipolar disorder (mania) past or present
- Active abuse of alcohol or illicit/prescription drugs within the past year any other condition which in the opinion of the investigator would make the patient unsuitable for enrollment, or could interfere with participating in or completing the protocol
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: Ciência básica
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Comparador Ativo: HCV Interferon-alpha group
Subjects receiving treatment with interferon (IFN)-alpha for chronic hepatitis C virus infection.
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Hepatitis C patients who are eligible to receive IFN-alpha treatment and enrolled in this study will be treated with pegylated IFN-alfa-2b or pegylated IFN-alfa-2a plus ribavirin at a dose of 800-1,400 mg/d as determined by the treating gastroenterologist.
All medication administration is for purely clinical indications as dictated by treating physicians.
Any and all diagnostic or treatment issues related to potential treatment with IFN-alpha will be conducted by treating clinicians.
Subjects will be randomized to start their clinical (non-research) treatment following completion of baseline assessments or to delay the start of their clinical (non-research) treatment by 7 weeks.
Outros nomes:
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Comparador de Placebo: HCV Control Group
Subjects delaying the start of treatment with interferon (IFN)-alpha for chronic hepatitis C virus infection by 7 weeks.
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Hepatitis C patients who are eligible to receive IFN-alpha treatment and enrolled in this study will be treated with pegylated IFN-alfa-2b or pegylated IFN-alfa-2a plus ribavirin at a dose of 800-1,400 mg/d as determined by the treating gastroenterologist.
All medication administration is for purely clinical indications as dictated by treating physicians.
Any and all diagnostic or treatment issues related to potential treatment with IFN-alpha will be conducted by treating clinicians.
Subjects will be randomized to start their clinical (non-research) treatment following completion of baseline assessments or to delay the start of their clinical (non-research) treatment by 7 weeks.
Outros nomes:
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
|---|---|
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Percent time laughing
Prazo: 7 weeks
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7 weeks
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Percent time expressing empathy for others
Prazo: 7 weeks
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7 weeks
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Percent of time spent in substantive conversations
Prazo: 7 weeks
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7 weeks
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Percent of time spent alone
Prazo: 7 weeks
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7 weeks
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Medidas de resultados secundários
Medida de resultado |
Prazo |
|---|---|
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Cortisol concentrations in blood in response to stress test
Prazo: 7 weeks
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7 weeks
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Interleukin (IL)-6 concentrations in the blood in response to stress test
Prazo: 7 weeks
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7 weeks
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Diurnal plasma concentrations of interleukin-6 and tumor necrosis factor-alpha type II receptors in response to a stress test
Prazo: 7 weeks
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7 weeks
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Diurnal plasma concentrations of inflamcortisol in response to a stress test
Prazo: 7 weeks
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7 weeks
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Wake time after sleep onset measured by actigraphy
Prazo: 7 weeks
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7 weeks
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Sleep latency by measured by actigraphy
Prazo: 7 weeks
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7 weeks
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Total sleep time by actigraphy
Prazo: 7 weeks
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7 weeks
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Sleep efficiency by actigraphy
Prazo: 7 weeks
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7 weeks
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Structured Interview Guide for the Hamilton Depression Scale and Inventory of Depressive Symptomatology (SIGH-IDS)
Prazo: 7 weeks
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7 weeks
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Colaboradores e Investigadores
É aqui que você encontrará pessoas e organizações envolvidas com este estudo.
Patrocinador
Investigadores
- Investigador principal: Charles L. Raison, MD, University of Arizona
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 junho de 2012
Conclusão Primária (Real)
1 de julho de 2013
Conclusão do estudo (Real)
1 de julho de 2013
Datas de inscrição no estudo
Enviado pela primeira vez
11 de junho de 2012
Enviado pela primeira vez que atendeu aos critérios de CQ
19 de junho de 2012
Primeira postagem (Estimativa)
21 de junho de 2012
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
22 de julho de 2013
Última atualização enviada que atendeu aos critérios de controle de qualidade
18 de julho de 2013
Última verificação
1 de julho de 2013
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Doenças do aparelho digestivo
- Processos Patológicos
- Infecções por vírus de RNA
- Doenças Virais
- Infecções
- Infecções transmitidas pelo sangue
- Doenças Transmissíveis
- Doenças do Fígado
- Infecções por Flaviviridae
- Hepatite, Viral, Humana
- Inflamação
- Hepatite
- Hepatite C
- Efeitos Fisiológicos das Drogas
- Agentes Anti-Infecciosos
- Antivirais
- Agentes Antineoplásicos
- Fatores imunológicos
- Interferons
- Interferon-alfa
Outros números de identificação do estudo
- 12-0166-02
- 5R01AT007297-03 (Concessão/Contrato do NIH dos EUA)
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 .