Clinical trials: Deficiency, Vitamin D
Vitamin D Deficiency
The Role of Narrowband Ultraviolet B Exposure in the Maintenance of Vitamin D Levels During Winter
The investigators investigated the ability of narrowband ultraviolet B (nbUVB) treatment in the maintenance of vitamin D levels achieved during the summer in Finland.
- Trial name
- NCT02275650
- Testing
- nbUVB
- Where
- 2 sites in Finland
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Joint Authority for Päijät-Häme Social and Health Care
Vitamin D Deficiency, Vitamin D Insufficiency
Solius UV Light Source in Improving Serum Levels of 25-hydroxyvitamin D
This is a feasibility interventional study seeking to determine the safety and efficacy of the Solius Photobiologic System in increasing the serum levels of 25(OH)D in a vitamin D deficient/insufficient adult population.
- Trial name
- NCT04865432
- Testing
- UVB treatment
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Boston University
Deficiency, Vitamin D, Insulin Resistance
Vitamin D Supplementation and and Glycemic Indexes
Age affect insulin sensitivity and the metabolism, and vitamin D status was shown to have a correlation with markers of insulin resistance.
- Trial name
- NCT03478475
- Testing
- cholecalciferol (Euro-Pharm International, Canada)
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Université d'Auvergne
Polycystic Ovary Syndrome, Healthy
Vitamin D Treatment, Pharmacogenetics and Glucose Metabolism
Background: Polycystic ovary syndrome (PCOS) is as common as 5-10% of all women in Austria. PCOS women frequently present with metabolic disturbances, hyperandrogenism and infertility. New therapy concepts are warranted.
- Conditions
- Polycystic Ovary Syndrome, Healthy, Vitamin D Deficiency
- Trial name
- NCT01721915
- Testing
- Vitamin D supplementation
- Where
- Austria
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Iron Deficiency Anemia, Infectious Diseases
Efficacy Trial to Examine Efficacy of Multimicronutrient Home Supplementation in Infants
The objective of the program is to examine the efficacy of 6 month home micronutrient supplementation in Bedouin and Jewish children on improvements in nutritional status including measures of iron, ferritin, zinc and folic acid…
- Conditions
- Iron Deficiency Anemia, Infectious Diseases, Undernutrition
- Trial name
- NCT00276198
- Testing
- Sprinkles, Ferripel-3, Vitamins A&D drops
- Where
- Israel
- Volunteers
- 771 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Chronic Kidney Diseases, Hypertension
Integrated Diagnosis and Treatment of CKD on Outcomes
Objective: To establish a study cohort and follow up of patients with CKD in our hospital, and evaluate the status of integrated CKD diagnosis and treatment according to guidelines in the real world, as well as the clinical…
- Conditions
- Chronic Kidney Diseases, Hypertension, Hyperglycemia, Hyperlipidemias
- Trial name
- NCT05242055
- Testing
- Integrated diagnosis and treatment for CKD
- Where
- China
- Volunteers
- 1,000 people
- Sponsor
- Capital Medical University
Gestational Diabetes Mellitus
The Impact of Vitamin D Supplementation on Glucose Metabolism in Chinese Women With Former Gestational Diabetes Mellitus
Vitamin D deficiency are related to insulin resistance and impaired beta-cell function.It is reported that the level of vitamin D is lower during pregnancy and postpartum in the women with Gestational Diabetes Mellitus.
- Trial name
- NCT03138616
- Testing
- vitamin D
- Where
- China
- Volunteers
- 180 people
- Sponsor
- Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine
Depression, Postpartum Depression
Is Vitamin D Insufficiency and Deficiency Associated With Antepartum and Postpartum Depression?
Our primary aim is to evaluate whether Vitamin D deficiency causes depressive symptoms in antepartum and postpartum depression and whether early correction of Vitamin D deficiency improves these symptoms.
- Trial name
- NCT02272387
- Testing
- Vitamin D3 (Cholecalciferol)
- Where
- United States
- Volunteers
- 151 people, healthy volunteers welcome
- Sponsor
- St. Luke's-Roosevelt Hospital Center
Drug Resistant Epilepsy
Vitamine D in Drug Resistant Epilepsy
Almost all patients with epilepsy living in the region of Paris have vitamin D deficiency, which is severe in 1/3 of the cases. The impact of this deficiency on epilepsy is unknown, despite the suggested benefits of vitamin D…
- Trial name
- EPI-D (NCT03475225)
- Testing
- Cholecalciferol
- Where
- 2 sites in France
- Volunteers
- 88 people
- Sponsor
- Centre Hospitalier St Anne
Hypovitaminosis D, Osteoporosis, Postmenopausal
Effect of Vitamin D and Denosumab on Bone Remodelling in Women With Postmenopausal Osteoporosis
Denosumab is a monoclonal antibody against RANKL ligand, which is used as an alternative treatment for osteoporosis in patients who have a poor response to first-line antiresorptive therapy.
- Conditions
- Hypovitaminosis D, Osteoporosis, Postmenopausal, Menopause
- Trial name
- NCT05372224
- Testing
- Cholecalciferol
- Where
- Mexico
- Volunteers
- 55 people
- Sponsor
- Hospital Regional 1o de Octubre
Vitamin D Deficiency, Peripheral Neuropathy
Vit D and Peripheral Neuropathy in Taxane Naive Patients
To evaluate the efficacy of vit D supplement in cancer patients which receive taxane drugs with vit D deficiency and complaining from Peripheral neuropathy
- Trial name
- NCT05852496
- Testing
- Vitamin D
- Volunteers
- 60 people
- Sponsor
- Assiut University
Other Preterm Infants, Vitamin D Deficiency
The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity
This trial objective is to assess whether doubling the daily intake of vitamin D improves serum vitamin D levels and serves as primary prevention of respiratory infections and asthma in premature infants.
- Conditions
- Other Preterm Infants, Vitamin D Deficiency, Bronchiolitis, Asthma
- Trial name
- NCT02404623
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Vitamin D Deficiency
Effects of Vitamin D Fortification on Vitamin D Metabolite Profiles and Status in Vitamin D Insufficient Individuals
This is a cross-sectional study designed to compare plasma/serum and urine vitamin D metabolite profiles of vitamin D sufficient and insufficient individuals. There are two phases of this study.
- Trial name
- VITD-2013 (NCT02422784)
- Testing
- Rooibos Iced-Tea (Control), Rooibos Tea - Vitamin D3, Rooibos Tea- Vitamin D3 & Calcium
- Where
- Canada
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Manitoba
Hypovitaminosis D
Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients
In the United States, ~1 million elective hip or knee replacement surgeries are performed annually. With estimated surgical site infection (SSI) rates as high as 2.5%, this represents ~25,000 patients at risk of potentially…
- Trial name
- NCT01858051
- Testing
- Cholecalciferol
- Where
- United States
- Sponsor
- Massachusetts General Hospital
Morbid Obesity, Vitamin D Deficiency
Effect of a Monthly High Dose of Vitamin D3 on Bariatric Surgery Patients
Bariatric surgery patients tend to have malabsorption of many micronutrients such as B12, Iron and vitamin D postoperative. So in this study, a monthly high dose of vitamin D3 is giving to patients with their routine supplements…
- Trial name
- NCT02477956
- Testing
- vitamin D3 (Replesta), vitamin D
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- Texas Tech University
Vitamin D Deficiency, Overweight
Vitamin D Supplement Study for Adolescents
The purpose of this study is to determine if 14-19 year old African American adolescents are able to take a daily vitamin D supplement daily for about 4 months and how well a daily dose of 400 IU or 2000 IU vitamin D supplement…
- Conditions
- Vitamin D Deficiency, Overweight, Obesity
- Trial name
- VIP (NCT00909454)
- Testing
- 2000 IU Vitamin D3 daily supplement, 400 IU Vitamin D3 supplement
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- Augusta University
Osteomalacia
Serum Prolidase Activity and the Role of Leptin in Osteomalacia
Evaluation of the change of serum Prolidase and Leptin values in the diagnosis and follow-up of osteomalacia and its clinical usability
- Trial name
- NCT05716750
- Testing
- Vitamin D
- Volunteers
- 38 people
- Sponsor
- TUĞBA ŞAHBAZ
Chronic Kidney Disease, End Stage Kidney Disease
Pathogenesis of Compromised Bone Quality and Mechanics in Chronic Kidney Disease
Kidney disease patients have a variety of bone disorders that result in bone loss and fractures. The mechanisms of these bone disorders are not clear but may be related to abnormal modification of a bone protein known as…
- Conditions
- Chronic Kidney Disease, End Stage Kidney Disease, Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy
- Trial name
- NCT03626246
- Testing
- Kidney disease
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Columbia University
Vitamin D Deficiency, Primary Open-angle Glaucoma
Comparison of Vitamin D Status and Vitamin D Receptor Polymorphisms in Patients With High Myopia and Primary Open-angle Glaucoma
Vitamin D deficiency is known to be significantly associated with high myopia. This study investigated the vitamin D status in patients with high myopia and primary open-angle glaucoma, in order to understand the relationship…
- Conditions
- Vitamin D Deficiency, Primary Open-angle Glaucoma, High Myopia, Vitamin D Receptor Polymorphisms
- Trial name
- NCT03021629
- Testing
- Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by an enzyme-linked immuno-absorbent assay
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Lv Yingjuan
Type 2 Diabetes Mellitus, Obesity
Vitamin D Status and Lipid Profile in Obese Adults With Type 2 Diabetes
This prospective, single-center, cross-sectional observational study aims to evaluate the association between serum 25-hydroxyvitamin D concentrations and lipid profile parameters among adults with obesity and established type 2…
- Conditions
- Type 2 Diabetes Mellitus, Obesity, Dyslipidemia, Vitamin D Deficiency
- Trial name
- VILD-T2D (NCT07729553)
- Volunteers
- 150 people
- Sponsor
- Sinai University
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