- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02617771
Impact of Vitamin D Supplementation on Recurrent Respiratory Infections in Paediatric Primary Care.
Impact of Vitamin D Supplementation on Recurrent Respiratory Infections in Paediatric
Up to date, some clinical trial have evaluated the efficacy and safety of Vitamin D supplementation in children with RRI, with no conclusive information.
Therefore, the investigators designed a prospective, single-blind, clinical trial to evaluate whether oral supplementation with vitamin D from October to April reduces the global health burden of recurrent respiratory tract infections in a primary care setting.
The primary outcome was evaluated if Vitamin D supplementation during autumn and winter can reduce the number of respiratory tract infections in children diagnosed with recurrent respiratory tract infections the seasons before.
Secondary objectives was the assessment of Vitamin D supplementation benefits on global socioeconomic burden of recurrent respiratory tract infections in a primary care setting, according to number of visits to the primary care paediatrician and use of antibiotics due to respiratory tract infections.
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
The University study personnel randomly allocated patients to receive, from October to March, a Vitamin D oral supplementation (400 UI/die up to 12 month or 600 UI/die beyond 1 year) or not.
Randomization was performed using a free web-based service that offers random assignment; patients were randomized considering gender and age class (up to 12 months; beyond 1 years). The primary care practitioner was blinded regarding the study group allocation.
Inclusion criteria were: a) patients diagnosed the seasons before with: ≥ 6 respiratory infections per annum OR ≥ 1 respiratory infections per month involving the upper airways from September to April OR ≥ 3 respiratory infections per annum involving the lower airways. b) patients with no findings suggestive of an immunodeficiency on history and physical examination.
From the recruitment, parents recorded number and type of diagnosed respiratory tract infections, number of ambulatory visits, use of antibiotics and duration of symptoms in a structured diary.
Upper Respiratory Tract Infections (URTIs) comprehends diagnosis of acute otitis media, acute rhinosinusitis and acute pharyngotonsillitis. Lower Respiratory Tract Infections (LRTIs) comprehend diagnosis of bronchiolitis and pneumonia.
All parents had a close telephone contact to help them in the diary compilation. Adverse events related to the protocol were monitored. Missing data were recovered through the information system of the primary care practitioner.
Quantitative data were expressed as mean and standard deviation. To compare the mean between the two groups, Student's t-test for unpaired was used. The frequency of each visits to the pediatricians and use of antibiotics in the two group was calculated and expressed as a percentage. The χ² test was used to compare the percentages between the two groups. For all tests, P-values <0.05 were considered significant.
Since Italian National Health System covers all costs for pediatrician visits and antibiotics, cost assessment was made analysing the costs regarding the frequency of each parameters in treated and nontreated group. We considered as direct cost National Health System: Medical examination (20,66 euros for each examination, as provided by the Italian Ministry of Health) and use of Antibiotics (the cost was as in the list of the National Drug Authority).
Type d'étude
Inscription (Réel)
Phase
- Phase 4
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- patients diagnosed the seasons before with: ≥ 6 respiratory infections per annum
- ≥ 1 respiratory infections per month involving the upper airways from September to April
- ≥ 3 respiratory infections per annum involving the lower airways
Exclusion Criteria:
- patients with findings suggestive of an immunodeficiency on history and physical examination
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: La prévention
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Seul
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
---|---|
Aucune intervention: Contrôler
|
|
Comparateur actif: Vit D
Vitamin D oral supplementation (400 UI/die up to 12 month or 600 UI/die beyond 1 year) from October to March
|
from October to March, a Vitamin D oral supplementation (400 UI/die up to 12 month or 600 UI/die beyond 1 year
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Number of recurrent respiratory tract infections for each months of study
Délai: From October 1, 2014, and March 31, 2015, up to 6 months
|
reduction of the number of respiratory tract infections in children diagnosed with recurrent respiratory tract infections the seasons before
|
From October 1, 2014, and March 31, 2015, up to 6 months
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Cost assessment in euros according to antibiotics, paediatric visits and vitamin D supplementation
Délai: From October 1, 2014, and March 31, 2015, up to 6 months
|
Secondary objectives was the assessment of Vitamin D supplementation benefits on global socioeconomic burden of recurrent respiratory tract infections in a primary care setting, according to number of visits to the primary care paediatrician and use of antibiotics due to respiratory tract infections.
|
From October 1, 2014, and March 31, 2015, up to 6 months
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Maria Elisabetta Baldassarre, MD, University of Bari
Publications et liens utiles
Publications générales
- de Sa Del Fiol F, Barberato-Filho S, Lopes LC, de Cassia Bergamaschi C. Vitamin D and respiratory infections. J Infect Dev Ctries. 2015 Apr 15;9(4):355-61. doi: 10.3855/jidc.5711.
- Zittermann A, Gummert JF. Nonclassical vitamin D action. Nutrients. 2010 Apr;2(4):408-25. doi: 10.3390/nu2040408. Epub 2010 Mar 25.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Processus pathologiques
- Maladies des voies respiratoires
- Attributs de la maladie
- Infections
- Maladies transmissibles
- Récurrence
- Infections des voies respiratoires
- Effets physiologiques des médicaments
- Micronutriments
- Vitamines
- Agents de conservation de la densité osseuse
- Hormones et agents régulateurs du calcium
- Vitamine D
- Cholécalciférol
Autres numéros d'identification d'étude
- VITDBA1
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
Étudie un produit d'appareil réglementé par la FDA américaine
produit fabriqué et exporté des États-Unis.
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