- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02661191
Vitamin D Deficiency and Asthma Exacerbation (AVD)
Effect of Vitamin D Repletion on Asthma Exacerbation
Studieöversikt
Status
Betingelser
Intervention / Behandling
Detaljerad beskrivning
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.
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
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.
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: N/A
- Interventionsmodell: Enskild gruppuppgift
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
|
Övrig: 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
Andra namn:
|
Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Relationship between serum 25-hydroxide (OH) vitamin D level and asthma exacerbations (number/year= unscheduled visits for worsening symptoms, increase in therapy)
Tidsram: 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)
Tidsram: 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
|
Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
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%)
Tidsram: 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%)
Tidsram: 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
|
Samarbetspartners och utredare
Sponsor
Utredare
- Studiestol: Caterina B Bucca, MD, Dept. Medical Science, University of Turin
Publikationer och användbara länkar
Allmänna publikationer
- 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.
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
Nyckelord
Ytterligare relevanta MeSH-villkor
- Patologiska processer
- Luftvägssjukdomar
- Immunsystemets sjukdomar
- Lungsjukdomar
- Överkänslighet, Omedelbar
- Sjukdomsegenskaper
- Bronkialsjukdomar
- Näringsstörningar
- Avitaminos
- Bristsjukdomar
- Undernäring
- Lungsjukdomar, obstruktiv
- Respiratorisk överkänslighet
- Överkänslighet
- Sjukdomsprogression
- D-vitaminbrist
- Astma
- Läkemedels fysiologiska effekter
- Mikronäringsämnen
- Vitaminer
- Bendensitetsbevarande medel
- Kalciumreglerande hormoner och medel
- Vitamin D
- Kolekalciferol
Andra studie-ID-nummer
- ASTHMAVITD
Plan för individuella deltagardata (IPD)
Planerar du att dela individuella deltagardata (IPD)?
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