- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT01996891
Asthma (and Dietary) Inflammation Reduction (AIR)
Effects of an Anti-Inflammatory Diet on Pulmonary Function in Pediatric Asthma
Visão geral do estudo
Descrição detalhada
Asthma, an inflammatory disease of the airway mucosa, is highly correlated with obesity and nutritional intake in multiple cross-sectional studies. Limited interventional data in adults with asthma, relying on behavioral modification, have reported that asthma control significantly improves with caloric restriction and diets enriched with antioxidants, and may improve with increasing omega-3 fatty acid content. A comprehensive diet harnessing anti-inflammatory properties of multiple foods may have synergistic effects on bronchial inflammation and pulmonary function, yet this possibility remains largely untested, especially in children.
We propose a randomized, controlled cross-over trial, with 6-week treatment arms, in pediatric patients with moderate to severe asthma. The experimental diet will focus on reducing glycemic load, and increasing fiber, fruits, vegetables, legumes and food-based omega-3 fatty acid content. The comparison diet will be each participant's habitual diet. Both diets will be isocaloric and weight maintaining, to isolate the effects of the dietary composition from the known beneficial effects of weight loss. In addition, the home delivery of prepared meals will alleviate the variable and incomplete adherence commonly observed in behavioral studies.
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Massachusetts
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Boston, Massachusetts, Estados Unidos, 02115
- Boston Children's Hospital
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Age 10-21 years
- Clinical diagnosis of moderate or severe persistent asthma
- Currently prescribed inhaled corticosteroids for asthma with anticipated stable dosing regimen for the duration of the study
- Admission to Boston Children's Hospital for clinical asthma exacerbation
- Medical clearance from primary care provider
- Willingness to comply with study diet
Exclusion Criteria:
- Body mass index (BMI) < 3rd centile (age- and gender- adjusted normative range from Center for Disease Control)
- Known eating disorder
- Celiac disease
- Any food allergy
- Any other major illness as assessed by medical history or the following screening tests:
- Alanine aminotransferase (ALT) > twice upper limit of normal for age
- Creatinine > 1.0 mg/dL for age 10-18 years; > 1.2 mg/dL for females > 18 years; or > 1.4 mg/dL for males > 18 years)
- Random glucose > 200 mg/dL
- Hemoglobin < 11 g/dL for males age 10-18 years; < 11. g/dL for females age 10-18 years; <11.4 g/dL for males >18 years; or <10.9 g/dL for females age > 18 years
- Use of systemic steroids for indication other than asthma
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição cruzada
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
---|---|
Outro: Anti-Inflammatory Diet First
For the first 6 weeks, subjects will receive the anti-inflammatory diet.
For the second 6 weeks, subjects will consume their habitual diet.
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The anti-inflammatory diet will focus on reducing glycemic load, and increasing fiber, fruits, vegetables, legumes and food-based omega-3 fatty acid content.
|
Outro: Anti-Inflammatory Diet Second
For the first 6 weeks, subjects will consume their habitual diet.
For the second 6 weeks, subjects will receive the anti-inflammatory diet.
|
The anti-inflammatory diet will focus on reducing glycemic load, and increasing fiber, fruits, vegetables, legumes and food-based omega-3 fatty acid content.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
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Forced expiratory volume in one second (FEV1)
Prazo: End of 6-week intervention
|
End of 6-week intervention
|
Medidas de resultados secundários
Medida de resultado |
Prazo |
---|---|
Forced vital capacity (FVC)
Prazo: End of 6-week intervention
|
End of 6-week intervention
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Forced expiratory flow 25-75% (FEF25-75)
Prazo: End of 6-week intervention
|
End of 6-week intervention
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Fraction of exhaled nitric oxide (FeNO)
Prazo: End of 6-week intervention
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End of 6-week intervention
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Asthma Control Questionnaire (ACQ)
Prazo: End of 6-week intervention
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End of 6-week intervention
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Asthma Control Test (ACT)
Prazo: End of 6-week intervention
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End of 6-week intervention
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Pediatric Asthma-Related Quality of Life Questionnaire
Prazo: End of 6-week intervention
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End of 6-week intervention
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Asthma medication use
Prazo: End of 6-week intervention
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End of 6-week intervention
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Serum inflammatory markers, including C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), tissue necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6), plasminogen activator inhibitor-1 (PAI-1)
Prazo: End of 6-week intervention
|
End of 6-week intervention
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Asthma-related inflammatory markers, including eosinophilic cationic protein (ECP), monocyte chemoattractant protein (MCP-1)
Prazo: End of 6-week intervention
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End of 6-week intervention
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Measures of insulin sensitivity, including fasting glucose, fasting insulin and adiponectin
Prazo: End of 6-week intervention
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End of 6-week intervention
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Intestinal Microbiome Composition, including 16S sequencing and fecal short chain fatty acid levels
Prazo: End of 6-week intervention
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End of 6-week intervention
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Serologic markers of nutritional status, including vitamin D
Prazo: End of 6-week intervention
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End of 6-week intervention
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: David Ludwig, MD, PhD, Boston Children's Hospital
- Diretor de estudo: Bridget Hron, MD, Boston Children's Hospital
- Diretor de estudo: Cara Ebbeling, PhD, Boston Children's Hospital
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Real)
Conclusão do estudo (Real)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
- 00006708
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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