Pneumococcal Conjugate Vaccine (PCV) in HIV- Infected Children
The Immunogenicity and Safety of Pneumococcal Conjugate Vaccine in Human Immunodeficiency Virus - Infected Children
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
S. pneumoniae is an important cause of severe invasive bacterial disease in human immunodeficiency disease (HIV) infected children. The incidence of pneumococcal bacteremia cases requiring hospitalization among Thai children aged < 5 years had a range of 10.6-28.9 cases per 100,000 persons.[1]
Children infected with HIV have a markedly increased risk for pneumococcal infection compared with those who are not HIV-infected. HIV-infected children had rates of invasive pneumococcal disease (IPD) that were 2.8 and 12.6 times the rate among HIV-negative children aged <5 and <3 years, respectively. Incidence of IPD is 6.1 cases/100 patient-years among HIV-infected children through age 7 years [2]
Recent important strategy in prevention of invasive pneumococcal disease (IPD) is an implementation of pneumococcal conjugate vaccine (PCV), which can induce immunity starting from 2 months of age. In a small study of 5-valent PCV among children < 2 years of age, serotype-specific IgG antibodies (ELISA) response after 3 doses was found to be immunogenic among both groups.[3] The Pediatric AIDS Clinical Trials Group Study 292 show that the immunologic responses to 7- valent PCV were similar for all serotypes among asymptomatic and symptomatic HIV - infected children.[4] The study of quantitative and qualitative antibody responses to 9 - valent PCV in HIV-infected children in South Africa shows similar quantitative antibody responses but poorer qualitative antibody responses to the pneumococcal conjugate vaccine when compared to HIV-negative children.[5].
In Thailand, 7 - valent PCV (Prevnar® ) was available in 2003. It is recommended for young children and highly recommended for high risk children such as HIV-infected children, congenital heart disease or premature infants. However, one of the major obstacles for large scale implementation is cost issue. There is no previous study about immunogenicity, safety or efficacy of 7 - valent PCV in HIV -infected Thai children, the objective of this study is to assess the safety and immunogenicity of a 7 - valent PCV vaccine among HIV - infected compared with HIV - exposed children.
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
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Bangkok, Tailandia, 10330
- HIV-NAT, The Thai Red Cross AIDS Research Center
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Bangkok, Tailandia, 10330
- Pediatric infectious diseases section, King Chulalongkorn Memorial hospital
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
HIV - infected children
- HIV infected individuals
- Age between 2 months to 9 years
- Signed written informed consent
HIV - exposed negative children
- Maternal HIV infection, documented prior to delivery.
- Age between 2 months to 9 years
- Signed written informed consent
Exclusion Criteria:
- Active opportunistic infection
- History of hypersensitivity to pneumococcal conjugate vaccine or diphtheria toxoid
- Using oral steroid or immunosuppressive drugs
- Received pneumococcal conjugate vaccine, or pnuemococal polysaccharide vaccine
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Prevención
- Asignación: No aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Otro: 1
Receive valent pneumococcal conjugated vaccine in HIV - infected children
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Dosage: 0.5 ml per dose Administration: intramuscular injection Location: left deltoid area x 1 injection Frequency: depend on first dose of vaccination.
If 2-6 months of age, vaccination at month 0, 2, and 4. If 7-23 months of age, vaccination at month 0 and 2. If 2-9 years of age, vaccination at month 0. If patient is HIV positive, vacciation months 0 and 2 if age is 2-9 years.
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Otro: 2
Receive valent pneumococcal conjugated vaccine in HIV negative children
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Dosage: 0.5 ml per dose Administration: intramuscular injection Location: left deltoid area x 1 injection Frequency: depend on first dose of vaccination.
If 2-6 months of age, vaccination at month 0, 2, and 4. If 7-23 months of age, vaccination at month 0 and 2. If 2-9 years of age, vaccination at month 0. If patient is HIV positive, vacciation months 0 and 2 if age is 2-9 years.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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immunogenicity
Periodo de tiempo: 28 days
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Proportion of children with PCV serotype - specific IgG antibody at 28 days after completion of primary series of vaccination.
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28 days
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Safety
Periodo de tiempo: 28 days
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Number of adverse events after PCV administration
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28 days
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compare serotype
Periodo de tiempo: 28 days
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Compare proportion of PCV serotype - specific IgG antibody in HIV - infected children by baseline clinical staging, CD4 and viral load.
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28 days
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Colaboradores e Investigadores
Colaboradores
Investigadores
- Investigador principal: Chitsanu Pancharoen, MD, Pediatric infectious diseases unit, Chulalongkorn University
Publicaciones y enlaces útiles
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
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 (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Otros números de identificación del estudio
- HIV-NAT 135
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