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- Ensayo clínico NCT01102738
Defining the Intestinal Microbiota in Premature Neonates
The Microbiota of the Premature Neonatal Gastrointestinal Tract: Its Development and Relation to Necrotizing Enterocolitis and Bloodstream Infection
Descripción general del estudio
Estado
Descripción detallada
Highly premature infants are susceptible to serious infections such as necrotizing enterocolitis (NEC) and late-onset blood stream infections (BSIs).
NEC is a poorly understood, potentially life-threatening bowel disorder. It is thought that bacteria proliferating abnormally in the bowel may play an important part in its cause, but no single pathogen has yet been identified.
BSIs are commonly caused by gut bacteria. As the highly premature gut is fragile and has increased permeability, poor motility and decreased immune defences, localised inflammation caused by abnormal bacterial growth may allow 'bystander' microbes to translocate through the gut into the blood stream leading to systemic infection.
In a small proportion of infants who develop NEC, surgery will be required as part of treatment of the condition. In these infants the investigators will seek consent to collect a small part of the diseased bowel which has been removed. Similar analysis will be performed on these samples. The analysis of the tissue samples will give us an indication of how well the faeces act as a proxy for the intestinal microbiota.
In this ecological study of the evolution of the intestinal microbiota in preterm infants, by comparing samples from babies who develop NEC or late-onset BSI with those of well babies the investigators will be able to look for differences characteristic of the conditions. This information will help aid design of prevention or treatment strategies.
Tipo de estudio
Inscripción (Actual)
Contactos y Ubicaciones
Ubicaciones de estudio
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London, Reino Unido, W21PG
- Imperial College London
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London, Reino Unido
- Queen Charlotte's and Chelsea Hospital - NICU
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London, Reino Unido
- St. Mary's Hospital - Winnicott Baby Unit
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Método de muestreo
Población de estudio
Descripción
Inclusion Criteria:
- All premature babies born at less than 32 completed weeks gestation who are admitted to an Imperial College NHS Healthcare Trust Neonatal Intensive Care Unit (St. Mary's Hospital or Queen Charlotte's & Chelsea Hospital), and whose parents/guardians have given their consent will be eligible to enter the study.
Exclusion Criteria:
- All babies born at more than 32 completed weeks gestation will be excluded from the study.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
Cohortes e Intervenciones
Grupo / Cohorte |
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Premature babies (<32 weeks)
All premature babies born at less than 32 completed weeks gestation who are admitted to an Imperial College NHS Healthcare Trust Neonatal Intensive Care Unit (St.
Mary's Hospital or Queen Charlotte's & Chelsea Hospital), and whose parents/guardians have given their consent will be eligible to enter the study.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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The Composition of Bacteria Present, Established by Ultra-deep RNA Gene Sequencing, in Pre-morbid Faecal Samples From Neonates With Necrotizing Enterocolitis and Late-onset Bacterial Sepsis.
Periodo de tiempo: Maximum of 6 months - serial samples collected from each infant (maximum admission duration 6 months), recruitment opened for 24 months.
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Faecal samples were analysed using 16S rRNA gene sequencing to determine the bacterial content present in faecal samples collected from pre term infants prior to the onset of necrotising enterocolitis. Bacteria were identified and relative proportions reported for each faecal sample analysed. |
Maximum of 6 months - serial samples collected from each infant (maximum admission duration 6 months), recruitment opened for 24 months.
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Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: J Simon Kroll, MA BM FRCP, Imperial College London
Publicaciones y enlaces útiles
Publicaciones Generales
- Shaw AG, Cornwell E, Sim K, Thrower H, Scott H, Brown JCS, Dixon RA, Kroll JS. Dynamics of toxigenic Clostridium perfringens colonisation in a cohort of prematurely born neonatal infants. BMC Pediatr. 2020 Feb 18;20(1):75. doi: 10.1186/s12887-020-1976-7.
- Sim K, Shaw AG, Randell P, Cox MJ, McClure ZE, Li MS, Haddad M, Langford PR, Cookson WO, Moffatt MF, Kroll JS. Dysbiosis anticipating necrotizing enterocolitis in very premature infants. Clin Infect Dis. 2015 Feb 1;60(3):389-97. doi: 10.1093/cid/ciu822. Epub 2014 Oct 23. Erratum In: Clin Infect Dis. 2015 Jun 15;60(12):1879.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Enfermedades del Sistema Digestivo
- Procesos Patológicos
- Síndrome de Respuesta Inflamatoria Sistémica
- Inflamación
- Enfermedades Gastrointestinales
- Gastroenteritis
- Enfermedades intestinales
- Complicaciones del embarazo
- Complicaciones obstétricas del parto
- Trabajo de parto prematuro, obstétrico
- Septicemia
- Infecciones
- Nacimiento prematuro
- Enterocolitis
- Enterocolitis Necrotizante
Otros números de identificación del estudio
- CR01542
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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Ensayos clínicos sobre Enterocolitis necrotizante
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University Hospitals of Derby and Burton NHS Foundation...University of NottinghamReclutamientoEnterocolitis Necrotizante NeonatalReino Unido
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Gorm GreisenTerminadoComplicaciones | NEC - Enterocolitis necrotizanteDinamarca
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Mednax Center for Research, Education, Quality...Phoenix Children's Hospital; Banner University Medical CenterTerminadoNutrición parenteral total | Enterocolitis necrotizante del recién nacidoEstados Unidos
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Medical University of WarsawAún no reclutandoEnterocolitis necrotizantePolonia
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The University of Hong KongReclutamientoAnastomosis primaria versus enterostomía en el tratamiento quirúrgico de la enterocolitis necrosanteEnterocolitis necrotizanteHong Kong
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Ain Shams UniversityTerminado
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Marmara UniversityDesconocido
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Maastricht University Medical CenterDesconocido
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Odense University HospitalTerminadoEnterocolitis necrotizanteDinamarca
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Boston Children's HospitalYale University; Elizabeth Glaser Pediatric AIDS Foundation; Glaser Pediatric Research...DesconocidoEnterocolitis necrotizanteEstados Unidos