- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT01182909
Environmental and Genetic Determinants of Nasopharyngeal Carcinoma (NPC)
Far Eastern Memorial Hospital
Nasopharyngeal carcinoma (NPC) is one of the most common malignant tumors in southern China and Southeast Asia. While infection with Epstein-Barr Virus (EBV) is believed to be necessary for the development of NPC, non-viral environmental factors have also been implicated to increase the risk of NPC including consumption of salted fish and other nitrosamine containing preserved foods, formaldehyde and wood dust exposure, and cigarette smoking. In addition to environmental factors, it is widely accepted that genetic susceptibility also plays an important role in the pathogenesis of NPC. Polymorphisms in genes involved in nitrosamine metabolism and DNA repair have been suggested to be associated with NPC risk, and various chromosomal regions linked to NPC development have been reported. These associations highlight the role of both environmental and genomic components in the etiology of NPC.
There is a longstanding history of international collaborative studies to elucidate the role of environmental and genetic factors associated with NPC between investigators in Taiwan and the USA. A case-control study (375 cases; 327 controls) was conducted in the early 1990s, and a large multiplex family study that was completed in 2006 (358 families; 3,216 individuals). Results from these studies have provided some of the most comprehensive epidemiological evidence regarding factors linked to NPC development to date.
As a next logical step, the opportunity now exists to undertake a genome-wide association study of NPC in Taiwan with carefully collected environmental exposure data to systematically examine environmental and genetic factors associated with NPC, and to evaluate gene-gene and gene-environment interactions. The investigators propose a case-control study of 2000 NPC cases (both retrospective [n=800] and prospective [n=1,200]) and 2,000 age-gender-matched hospital controls in northern Taiwan. The study objectives are to: 1) evaluate putative environmental exposures and NPC; 2) assess the effect of genetic factors, including both single nucleotide polymorphism and copy number variation through analysis of both main effect and gene-gene interaction; 3) investigate gene-environment interactions by testing for interactions between significant genome-wide genetic variations and EBV and other identified environmental risk factors; and 4) examine the natural history of EBV infection.
Descripción general del estudio
Estado
Condiciones
Tipo de estudio
Inscripción (Anticipado)
Contactos y Ubicaciones
Ubicaciones de estudio
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Taipei, Taiwán
- Reclutamiento
- Far Eastern Memorial Hospital
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Contacto:
- Liao Li-Jen
- Número de teléfono: 2124 (02)8966-7000
- Correo electrónico: deniro@mail2000.com.tw
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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:
- Patients diagnosed with NPC
Exclusion Criteria:
- Case group and control group younger than 18 age. Control group, the reasons for hospitalization for the EB virus-related disease
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Modelos observacionales: Control de caso
- Perspectivas temporales: Transversal
Colaboradores e Investigadores
Patrocinador
Colaboradores
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Anticipado)
Finalización del estudio (Anticipado)
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 (Estimar)
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
- Neoplasias por tipo histológico
- Neoplasias
- Neoplasias por sitio
- Neoplasias Glandulares y Epiteliales
- Neoplasias faríngeas
- Neoplasias Otorrinolaringológicas
- Neoplasias de Cabeza y Cuello
- Enfermedades Nasofaríngeas
- Enfermedades faríngeas
- Enfermedades Estomatognáticas
- Enfermedades Otorrinolaringológicas
- Neoplasias Nasofaríngeas
- Carcinoma
- El carcinoma nasofaríngeo
Otros números de identificación del estudio
- 099046-F
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