Clinical trials: Vitamin D Deficiency
X Linked Hypophosphatemic Rickets
Growth Hormone Treatment in Children With Hypophosphatemic Rickets
This study evaluates the effect on height of a two year treatment with growth hormone in 19 children with X linked hypophosphatemic rickets.
- Trial name
- GH-XLH (NCT02720770)
- Testing
- norditropine simplex
- Volunteers
- 19 people
- Sponsor
- Bicetre Hospital
Vitamin d Deficiency
Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health
This intervention study will address the impact of vitamin D fortified milk and vitamin D supplements on the growth, levels of vitamin D, insulin-like growth factor 1, growth hormone, academic attention, respiratory infections…
- Trial name
- BSS (NCT00886379)
- Testing
- Mongolian milk without vitamin D, Mongolian milk with vitamin D, UHT milk
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Hypophosphatasia (HPP)
Safety and Efficacy Study of Asfotase Alfa in Severely Affected Infants With Hypophosphatasia (HPP)
This clinical trial studies the safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP.
- Trial name
- NCT00744042
- Testing
- asfotase alfa
- Where
- 10 sites in United States, Canada and 2 more
- Volunteers
- 11 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Vitamin D Deficiency, Cystic Fibrosis
Efficacy of Intensive Cholecalciferol Monitoring and Supplementation on Serum vitD Levels in Pediatric Patients With CF
Cystic fibrosis (CF) is an autosomal recessive disease caused by alterations in the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR) gene, characterized by multisystemic alterations, mainly in the lung, intestine…
- Conditions
- Vitamin D Deficiency, Cystic Fibrosis, Bone Density, Low, Inflammation Chronic
- Trial name
- NCT05276960
- Testing
- Cholecalciferol Pill
- Where
- Mexico
- Volunteers
- 40 people
- Sponsor
- Hospital Infantil de Mexico Federico Gomez
Vitamin D Deficiency
Personalized Vitamin D Supplementation in European and African Americans
The proposed study is a randomized, double-blind, controlled, multi-center clinical trial of six months of daily oral vitamin D3 (cholecalciferol).
- Trial name
- NCT02362269
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Vitamin D Deficiency
Evaluation of Vitamin D Requirements During Pregnancy
The purpose of this study is to determine the effectiveness of vitamin D supplementation during pregnancy starting at the beginning of the second trimester.
- Trial name
- NCT00292591
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 501 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Asthma, Vitamin D Resistant Rickets
Assessment Of Vitamin D Role In The Pathogenesis Of Asthma In Vitamin D Resistent Patients
Research Title: Evaluation of airway reactivity, allergy and inflammatory mediators in exhaled breath condensate in vitamin D resistant rickets.
- Trial name
- NCT01578824
- Testing
- Methacholine Challenge Test
- Where
- Israel
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
Atopic Dermatitis, Vitamin D Deficiency
Vitamin D Deficiency and Atopic Dermatitis
Atopic dermatitis is a chronic skin disease characterized by a defective skin barrier, inflammation, and increased propensity for skin infections.
- Trial name
- NCT01337635
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Medical College of Wisconsin
End Stage Renal Disease, Hyperparathyroidism, Secondary
Mineral and Bone Disorders Outcomes in Stage 5D of Chronic Kidney Disease
The MBD-5D is a prospective observational study with a case-cohort and a cohort design. Eligible patients are receiving hemodialysis and have secondary hyperparathyroidism.
- Trial name
- MBD-5D (NCT00995163)
- Where
- Japan
- Volunteers
- 8,020 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Vitamin D Deficiency
Effect of Vitamin D Supplementation on Health of Low Birth Weight Infants
The purpose of this study is to determine whether a weekly supplement of vitamin D to low birth weight term infants will reduce their mortality and hospital admissions and improve their immunity.
- Trial name
- DIVIDS (NCT00415402)
- Testing
- Vitamin D3
- Where
- India
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- Delhi University
Vitamin D Deficiency
Vitamin D and HIV-Cardiovascular Disease in Children and Young Adults
The relationship of Vitamin D levels in children and young adults to atherosclerosis.
- Trial name
- NCT01410305
- Where
- 2 sites in United States
- Volunteers
- 290 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
HIV Infection
Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART
This is a 48 week randomized double-blind, placebo-controlled prospective cohort study of adolescents and young adults with HIV infection in the Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN) who are…
- Trial name
- NCT01751646
- Testing
- Vitamin D3 50,000 IU
- Where
- 17 sites in United States, Puerto Rico
- Volunteers
- 214 people
- Sponsor
- University of North Carolina, Chapel Hill
Acute Lymphoblastic Leukemia
Effect of Vitamin D Diffiency on Oral Mucosa in Patients Recieving Methotrexate Chemotherapy
it's a prospective study aiming to improve quality of life of patients with acute lymphoblastic leukemia suffering from oral mucositis, receiving courses of methotrexate chemotherapy , by measuring vitamin D in those patients…
- Trial name
- VitDandMTX (NCT04096846)
- Testing
- laboratory investigation
- Volunteers
- 100 people
- Sponsor
- Assiut University
Vitamin D Deficiency, Tuberculosis
Role of Vitamin D in Innate Immunity to Tuberculosis
The investigators proposed a pilot study preparatory to developing a randomized trial of vitamin D for the prevention of TB infection. The specific aims are presented below: 1.
- Trial name
- NCT01244204
- Testing
- Vitamin D
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Harvard School of Public Health (HSPH)
Vitamin D Deficiency
Vitamin D Status and Its Influencing Factors in Zhejiang Province: A Multicenter Cross-Sectional Study
Vitamin D deficiency is a global public health problem, with an estimated 1 billion people affected worldwide, and large-scale systematic data for Zhejiang Province remain scarce.
- Trial name
- NCT07866391
- Where
- 2 sites in China
- Volunteers
- 10,000 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Zhejiang University
Hypocalcemia, Hypovitaminosis D
Calcium and Vitamin D Intakes in Children
Calcium (Ca2+) and vitamin D (VitD) play an important role in child health. Aims. The investigators evaluated the daily intake of Ca2+ and VitD in healthy children; and the efficacy of Ca2+ and VitD supplementation.
- Trial name
- NCT01638494
- Testing
- Colecalcium supplement
- Volunteers
- 184 people
- Sponsor
- Federico II University
Asthma, Vitamin D Deficiency
Rapid vs Maintenance Vitamin D Supplementation in Deficient Children With Asthma to Prevent Exacerbations.
The role of vitamin D in respiratory health remains uncertain. Whether vitamin D reduces clinically important exacerbations of childhood asthma remains uncertain.
- Trial name
- NCT01395589
- Testing
- Vitamin D
- Where
- Qatar
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Hamad Medical Corporation
Obese, Vitamin D Deficiency
Roles of Vitamin D and HDL in Obese Children
This is a pilot study to determine the association between Vitamin D deficiency in obese children and low high density lipoprotein (HDL) and dysfunctional HDL.
- Conditions
- Obese, Vitamin D Deficiency, Low HDL
- Trial name
- NCT02135913
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 1 people
- Sponsor
- Xiang-An Li
Acute Respiratory Infections, Critical Illness in Children
Serum Vitamin D Status in Critically Ill Children With Acute Respiratory Infections
Acute respiratory infections (ARIs) are among the leading causes of hospitalization, morbidity, and mortality in children worldwide, particularly among critically ill patients admitted to pediatric intensive care units (PICUs).
- Conditions
- Acute Respiratory Infections, Critical Illness in Children, Vitamin D Deficiency, Pediatric Respiratory Infections
- Trial name
- VITD-ARI (NCT06547749)
- Testing
- Serum 25-Hydroxyvitamin D Assessment
- Where
- Egypt
- Volunteers
- 63 people
- Sponsor
- Assiut University
X-linked Hypophosphatemia (XLH)
Effective Dosing of Burosumab in XLH
X-linked hypophosphataemia (XLH) is a rare, hereditary condition. The genetic defect leads to low blood phosphate levels and vitamin D suppression. Phosphate is required for strong bones and teeth and to store energy in cells.
- Trial name
- NCT07183579
- Where
- United Kingdom
- Volunteers
- 120 people
- Sponsor
- University of Nottingham