Impact of Rotavirus Vaccine Introduction for South Australian Children
15 november 2011 uppdaterad av: Associate Professor Helen Marshall
An Observational, Cross-sectional, Cohort Study to Assess the Impact of the Rotavirus Vaccine Introduction on Severe Gastroenteritis in South Australian Children
This project aims to assess the impact of rotavirus vaccine introduction on severe gastroenteritis in South Australian children. Prevalence of rotavirus coded hospitalisations and all-cause gastroenteritis hospitalisations will be compared for a two year period prior to introduction of the vaccine and a two year period following introduction of the vaccine. Severity of rotavirus coded admissions during the periods will also be assessed.
Hypotheses:
- Introduction of the rotavirus vaccine will result in an 80% reduction in hospitalisations for rotavirus positive gastroenteritis (ICD code A0.80) in children less than two years of age.
- Introduction of rotavirus vaccine will result in an 80% reduction in Paediatric Emergency presentations for rotavirus positive gastroenteritis in children under two years of age.
- Introduction of the rotavirus vaccine will result in a 50% reduction in hospitalisations for all cause gastroenteritis (ICD codes A0.00-A0.90) in children less than two years of age.
- Introduction of the rotavirus vaccine will result in a 50% reduction in Paediatric Emergency presentations for all cause gastroenteritis in children less than two years of age.
- Introduction of rotavirus vaccine will result in a reduction in hospitalisation and Paediatric Emergency presentations in children aged four and five years with rotavirus positive gastroenteritis (unvaccinated cohort).
- There will be no difference in severity of disease as scored by the Vesikari and/or clark severity score prior to and post introduction of rotavirus vaccine
Studieöversikt
Status
Okänd
Detaljerad beskrivning
This project aims to assess vaccine effectiveness in the field following introduction of the rotavirus vaccine in South Australian children.
It is important to confirm the benefits of the vaccine post licensure to ensure the best health care options for children.
Between July 2007 - June 2008 at the Women's and Children's Hospital, there were approximately 2000 gastroenteritis patient samples analysed, with approximately 200 of these confirmed as rotavirus positive (10%).
The current vaccines available in Australia (Rotarix® and RotaTeq® ) are licensed for administration in infants up to six months of age as safety data is not yet available for older children.
It is therefore important to determine whether vaccination according to the current Australian Standard Vaccination Schedule can also demonstrate a positive change (less disease and less severe disease) in the burden of rotavirus disease in older unvaccinated children.
Studietyp
Observationell
Inskrivning (Förväntat)
1200
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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South Australia
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North Adelaide, South Australia, Australien, 5006
- Women's and Children's Hospital
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
Inte äldre än 6 år (Barn)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Testmetod
Icke-sannolikhetsprov
Studera befolkning
males and females aged 0-less than 6 years of age admitted to SA hospital with ICD10-AM separation codes consistent with rotaviral infection or gastroenteritis of any cause.
- for severity component, admissions to the Women's and Children's Hospital will be examined.
Beskrivning
Inclusion Criteria:
- males and females aged 0-less than 6 years of age admitted to SA hospital with ICD10-AM separation codes consistent with rotaviral infection or gastroenteritis of any cause.
- for severity component, only admissions to the Women's and Children's Hospital will be examined
Exclusion Criteria:
- nosocomial rotaviral infections (defined as onset >48 hours post admission date) will be reported separately in the severity analysis
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
Kohorter och interventioner
Grupp / Kohort |
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Pre- rotavirus vaccination introduction
Children aged 0-less than 6 years of age admitted to hospital in South Australia with ICD10-AM separation codes consistent with rotaviral infection or gastroenteritis of any cause during the period 01May2005-30Apr2007 (pre vaccine introduction)
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post rotavirus vaccine introduction
Children aged 0-less than 6 years of age admitted to hospital in South Australia with ICD10-AM separation codes consistent with rotaviral infection or gastroenteritis of any cause during the period 01May2009-30Apr2011 (post vaccine introduction)
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Tidsram |
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Change in prevalence of rotavirus coded hospital admissions before and after introduction of rotavirus vaccination
Tidsram: 2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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Sekundära resultatmått
Resultatmått |
Tidsram |
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Change in prevalence of all-cause gastroenteritis coded hospital admissions before and after rotavirus vaccination introduction
Tidsram: 2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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Change in proportion of admissions scored as severe (scored by severity index) for rotavirus coded hospital admissions before and after introduction of rotavirus vaccination
Tidsram: 2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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2 years prior to vaccine introduction (01May2005-30Apr2007) and 2 years post vaccine introduction (01May2009-30Apr2011)
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Samarbetspartners
Utredare
- Huvudutredare: Helen S Marshall, MBBS MD MPH, Women's and Children's Health Network
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
1 maj 2009
Primärt slutförande (Förväntat)
1 december 2011
Avslutad studie (Förväntat)
1 december 2011
Studieregistreringsdatum
Först inskickad
9 november 2011
Först inskickad som uppfyllde QC-kriterierna
15 november 2011
Första postat (Uppskatta)
16 november 2011
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
16 november 2011
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
15 november 2011
Senast verifierad
1 november 2011
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 38070 (Registeridentifierare: DAIDS-ES Registry Number)
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