Utility of CD64 and TLR2 Assays to Diagnose Acute Pulmonary Exacerbations in Cystic Fibrosis
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Tipo de estudio
Tipo de estudio
Inscripción (Actual)
Inscripción
Contactos y Ubicaciones
Ubicaciones de estudio
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Colorado
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Denver, Colorado, Estados Unidos, 80206
- National Jewish Health
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- Documented diagnosis of CF.
- Age 18 years old or greater.
- Presentation at baseline health OR at the start of treatment for a pulmonary exacerbation of CF.
- Ability to perform reproducible Pulmonary Function Tests
- Ability to produce sputum.
- Willingness to complete a health-related quality of life questionnaire
- Willingness to comply with study procedure and provide written consent.
Exclusion Criteria:
• Presence of a condition or abnormality that, in the opinion of the Principal Investigator (PI), would compromise the safety of the patient or the quality of the data.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Modelos observacionales: Grupo
- Perspectivas temporales: Futuro
Número de grupos/cohortes
Cohortes e Intervenciones
Grupo / CohorteGrupo / Cohorte |
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Acute Pulmonary Exacerbation (APE)
Those subjects presenting with APE will be treated with at least two pathogen specific I.V. antibiotics, as dictated by their treating physician and compliant with standard guidelines for care of an APE.
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Baseline Health
Those subjects presenting at baseline health will be identified by their treating physician as such and will not be starting on any treatments for APE.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Difference in neutrophil CD64 expression
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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The primary outcome measure is the difference in expression of neutrophil CD64 as measured by flow cytometry from circulating blood between the two groups (APE and baseline).
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Difference in CD4+ T cell TLR2 expression
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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The primary outcome measure is the difference in expression of CD4+ T cell TLR2 as measured by flow cytometry from circulating blood between the two groups (APE and baseline).
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Difference in GILT expression
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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The primary outcome measure is the difference in expression of GILT as measured by flow cytometry from circulating blood between the two groups (APE and baseline).
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Correlation of primary outcome measurements with lung function tests
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with changes in FEV1 as measured by spirometry.
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Correlation of primary outcome measurements with C-Reactive Protein
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with differences in C-Reactive Protein (CRP)
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Correlation of primary outcome measurements with total white blood cell counts
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with differences in total white blood cell counts (WBC).
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Correlation of primary outcome measurements with sputum inflammatory markers
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with differences in sputum inflammatory markers as measured by sputum neutrophil counts and neutrophil elastase expression.
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Correlation of primary outcome measurements with phagocytosis
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with differences in the percentage of phagocytosis by isolated neutrophils.
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Correlation of primary outcome measurements with quality of life questionnaire score
Periodo de tiempo: Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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A secondary outcome measure is the correlation of the differences in expression of neutrophil CD64, CD4+ T cell TLR2, and GILT with differences in patient reported health related quality of life scores as measured by the Cystic Fibrosis Questionnaire-Revised (CFQ-R).
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Within 24 hours of initiation of IV antibiotic treatment for CF pulmonary exacerbation or at Baseline health
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Inicio del estudio
Finalización primaria (Actual)
Finalización primaria
Finalización del estudio (Actual)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- 14BGF-10
Plan de datos de participantes individuales (IPD)
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Información sobre medicamentos y dispositivos, documentos del estudio
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