- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT02661191
Vitamin D Deficiency and Asthma Exacerbation (AVD)
Effect of Vitamin D Repletion on Asthma Exacerbation
연구 개요
상세 설명
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.
연구 유형
등록 (실제)
단계
- 해당 없음
참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
설명
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.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 해당 없음
- 중재 모델: 단일 그룹 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
|
다른: 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
다른 이름들:
|
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
Relationship between serum 25-hydroxide (OH) vitamin D level and asthma exacerbations (number/year= unscheduled visits for worsening symptoms, increase in therapy)
기간: 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)
기간: 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
|
2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
|
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%)
기간: 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%)
기간: 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
|
공동 작업자 및 조사자
수사관
- 연구 의자: Caterina B Bucca, MD, Dept. Medical Science, University of Turin
간행물 및 유용한 링크
일반 간행물
- 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.
연구 기록 날짜
연구 주요 날짜
연구 시작
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (추정)
연구 기록 업데이트
마지막 업데이트 게시됨 (추정)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
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