- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02198638
Effect of Influenza Vaccination of Healthcare Workers (HCW) on the Risk of Influenza in Patients Hospitalized in Short Stays Units
Influenza Vaccination of HCW and Hospital Acquired Influenza in Patients
Hospital acquired influenza is associated with significant morbidity and mortality in hospitalized patients notably elderly patients. Vaccination of HCW is recommended to prevent influenza transmission in healthcare setting.
Outbreaks of hospital acquired influenza were reported in stays with high vaccine coverage in patients (higher than 85%). It is necessary to underline that an adequate vaccine cover in the elderly population will not necessarily result in a total control of the incidence. Consequently, the prevention of influenza outbreaks in this vulnerable population must also include the reduction of the exposure to the influenza viruses, in particular thanks to the vaccination of HCW.
A pilote case-control study, implemented in Edouard Herriot hospital (at Lyon University hospitals), indicates that a shielding effect of more than 35% of vaccinated HCW on hospital acquired influenza among patients (Bénet et al.; BMC Infectious Diseases 2012). The results suggest a protective effect but investigations, carried out on a more important sample are needed to validate the benefit of HCW vaccination.
The aim of this prospective multicentric cohort study is to estimate incidence of influenza among hospitalized patients according to % of influenza vaccination of HCW in short stay units.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
-
Lyon, Frankrike, 69003
- Hospices civils de Lyon - Hôpital Edouard Herriot
-
Saint Etienne, Frankrike, 42055
- Centre Hospitalier Universitaire - Saint Etienne
-
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- All adults patients and healthcare workers of the participating units
- With Influenza Like Illness
Exclusion Criteria:
- Patients aged < 18 years
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
---|---|
Övrig: Patients or healthcare workers
|
A nasal swab was performed by a research assistant and influenza virus infection was confirmed by enzyme-linked immunosorbent assay and reverse transcription-polymerase chain reaction on viral cultures
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Incidence of influenza among hospitalized patients according to % of influenza vaccination of HCW in short stay units
Tidsram: After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
Study participation was proposed to each patient who presented ILI (influenza like illness) at admission or during hospitalization.
ILI was defined as fever >37.8°C or cough or sore throat.
Vaccination against influenza during the ILI season was collected by oral interview.
After the interview, a nasal swab was performed by a research assistant and influenza virus infection was confirmed by enzyme-linked immunosorbent assay and reverse transcription-polymerase chain reaction on viral cultures.
|
After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
---|---|---|
Estimation of influenza vaccine failure according to serotyping of viral strains
Tidsram: After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
strains of confirmed influenza virus were analysed by reverse transcription-polymerase chain reaction on viral cultures.
|
After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
Does incidence of community influenza influence hospital acquired influenza infections
Tidsram: After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
comparison of results observed during the 2 seasons
|
After 16 months (2 influenza seasons: from 15 December 2013 to 15 April 2014 and from 15 December 2014 to 15 April 2015)
|
Samarbetspartners och utredare
Sponsor
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 2013.814
- 2012-A01503-40 (Annan identifierare: (N°ID-RCB) France: Agence Nationale de Sécurité du Médicament et des produits de santé)
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