- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02661191
Vitamin D Deficiency and Asthma Exacerbation (AVD)
Effect of Vitamin D Repletion on Asthma Exacerbation
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
The first phase of the study consisted of a cross-sectional examination of a cohort of 119 asthmatic patients, who had at least one year regular follow-up in our respiratory clinic, and were not receiving any vitamin D supplementation.
In the second phase patients with vitamin D deficiency (25-OH D values below 20 ng/ml), were recruited in a one year longitudinal study, during which they received vitamin D supplementation. The study started and ended in late autumn-winter season when, at our latitude, sun exposure is lowest. Symptoms, spirometry and number of exacerbations were recorded during both study phases.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- All the consecutive patients with bronchial asthma of any severity, who presented for a scheduled visit at our Respiratory Clinic during the period October 2012-March 2013 and who had at least one year regular follow-up every three months
Exclusion Criteria:
- Acute exacerbation in the last month and treatment with vitamins and dietary supplements in the last year.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: N / A
- Modèle interventionnel: Affectation à un seul groupe
- Masquage: Aucun (étiquette ouverte)
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Autre: asthma severity and disease exacerbation
intramuscular cholecalciferol 100,000 IU, followed by oral cholecalciferol 5000 IU weekly plus 400 IU daily for one year
|
Inhaled corticosteroids and long-acting beta-agonists, salbutamol
Autres noms:
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Relationship between serum 25-hydroxide (OH) vitamin D level and asthma exacerbations (number/year= unscheduled visits for worsening symptoms, increase in therapy)
Délai: one year
|
119 consecutive asthmatic patients underwent serum vitamin D (25-OHD) and lung function assessment.
Their medical records were retrospectively reviewed, to gain information on disease exacerbations during the 12 months preceding study entry.
The relationship between baseline 25-OH vitamin D and number of exacerbation was investigated
|
one year
|
|
Effect of vitamin D supplementation in patients with 25-OH vitamin D < 20 ng/ml on asthma exacerbations (number/year= unscheduled visits for worsening symptoms, increase in therapy)
Délai: One year
|
55 asthmatic patients with 25-OH vitamin D below 20 ng/ml underwent supplementation with cholecalciferol for one year (intramuscular 100,000 IU, followed by oral 5000 IU weekly plus 400 IU daily for one year).
Number of exacerbations were recorded during the year of supplementation and compared with the data recorded during vitamin D deficiency
|
One year
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Relationship between serum 25-OH vitamin D level and airway obstruction (evaluated by spirometry: one second forced expiratory volume, FEV1 l/sec, vital capacity (VC) and FEV1/VC%)
Délai: one year
|
119 consecutive asthmatic patients underwent serum vitamin D (25-OHD, ng/ml) and lung function assessment.
Their medical records were retrospectively reviewed, to gain information on lung function tests (forced expiratory volume in 1 second, FEV1, and vital capacity, VC) during the 12 months preceding study entry.
The relationship between baseline 25-OH vitamin D and airway obstruction (FEV1 and FEV1/VC%) was investigated
|
one year
|
|
Effect of vitamin D supplementation in patients with 25-OH vitamin D < 20 ng/ml on airway obstruction ( FEV1 l/sec, FEV1/VC%)
Délai: one year
|
55 asthmatic patients with 25-OH vitamin D below 20 ng/ml underwent supplementation with cholecalciferol for one year (intramuscular 100,000 IU, followed by oral 5000 IU weekly plus 400 IU daily for one year).
Lung function tests (FEV1, VC and FEV1/VC%) were recorded during the year of supplementation and compared with the data recorded during vitamin D deficiency
|
one year
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chaise d'étude: Caterina B Bucca, MD, Dept. Medical Science, University of Turin
Publications et liens utiles
Publications générales
- Malinovschi A, Masoero M, Bellocchia M, Ciuffreda A, Solidoro P, Mattei A, Mercante L, Heffler E, Rolla G, Bucca C. Severe vitamin D deficiency is associated with frequent exacerbations and hospitalization in COPD patients. Respir Res. 2014 Dec 13;15(1):131. doi: 10.1186/s12931-014-0131-0.
- Masoero M, Bellocchia M, Ciuffreda A, Ricciardolo FL, Rolla G, Bucca C. Laryngeal spasm mimicking asthma and vitamin d deficiency. Allergy Asthma Immunol Res. 2014 May;6(3):267-9. doi: 10.4168/aair.2014.6.3.267. Epub 2014 Jan 14.
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 (Estimation)
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
- Maladies du système immunitaire
- Maladies pulmonaires
- Hypersensibilité immédiate
- Attributs de la maladie
- Maladies bronchiques
- Troubles nutritionnels
- Avitaminose
- Maladies de carence
- Malnutrition
- Maladies pulmonaires obstructives
- Hypersensibilité respiratoire
- Hypersensibilité
- Évolution de la maladie
- Carence en vitamine D
- Asthme
- 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
- ASTHMAVITD
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
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