Clinical trials: Vitamin Deficiencies
Vitamin D Deficiency, Respiratory Tract Infections
Vitamin D Supplementation for the Prevention of Acute Respiratory Infections: a RCT in Young Finnish Men
Vitamin D intervention effects on the prevention of acute respiratory tract infections among Young Finnish Men
- Trial name
- NCT05014048
- Testing
- Vitamin D3
- Where
- Finland
- Volunteers
- 231 people, healthy volunteers welcome
- Sponsor
- Tampere University
Cardiovascular Diseases, Vitamin D Deficiency
The Effect of Vitamin D Statues on Endothelial Function
In the United States, cardiovascular disease causes over one-third of all deaths and vitamin D deficiency is an epidemic. An increasing body of data suggests that low vitamin D status adversely impacts the cardiovascular system.
- Trial name
- CVD Cookie (NCT01049048)
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Vitamin D Deficiency
Sunlight Exposures Effect on Serum Vitamin D Levels
When people eat a meal, some, but not all of the calcium in that meal is absorbed, that is, moved into the bloodstream. When the skin is exposed to sunlight during summer months, Vitamin D is made there and then modified into…
- Trial name
- NCT00473317
- Testing
- Sun Exposure
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Creighton University
Lower Urinary Tract Symptoms, Vitamin D Deficiency
Uroflowmetry Results and Vitamin D Levels
The investigators aimed to evaluate the relationship between LUTS and vitamin D with uroflowmetry parameters in female patients. They found no relation between vitamin D levels and LUTS in respect to uroflowmetry.
- Conditions
- Lower Urinary Tract Symptoms, Vitamin D Deficiency, Calcium Deficiency
- Trial name
- NCT04405141
- Volunteers
- 186 people
- Sponsor
- Umraniye Education and Research Hospital
Vitamin D Deficiency, Pre-Eclampsia
Vitamin D in Pregnancy
Danish pregnant women are recommended ad daily vitamin D supplement of 10 µg. Despite the fact that 9 out of 10 women take vitamin D supplements, more than 40% of pregnant women are vitamin D deficient, putting them at an…
- Conditions
- Vitamin D Deficiency, Pre-Eclampsia, Fetal Growth Retardation, Gestational Diabetes
- Trial name
- GRAVITD (NCT04291313)
- Testing
- Vitamin D3 (90µg), Vitamin D3 (10µg)
- Where
- 2 sites in Denmark
- Volunteers
- 2,000 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Nephrolithiasis, Urolithiasis
Vitamin D Repletion in Stone Formers With Hypercalciuria
Vitamin D plays a critical role in maintaining bone health, as well as preventing cardiovascular disease, cancer, and various autoimmune diseases, such as diabetes.
- Conditions
- Nephrolithiasis, Urolithiasis, Idiopathic Hypercalciuria, Vitamin D Deficiency
- Trial name
- NCT01295879
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- New York Presbyterian Hospital
Vitamin D Deficiency, Osteoporosis
Does Vitamin D Alter Bone's Response to Vibration?
Fractures in children are common and the incidence is increasing. They are more common in children who have small, narrow and weak bones.
- Trial name
- NCT02743559
- Testing
- Mechanical Stimulation using whole body vibration
- Where
- United Kingdom
- Sponsor
- Sheffield Children's NHS Foundation Trust
Cancer Breast, Hypovitaminosis D
Influence of Preoperative Vitamin D Level on Postoperative Pain in Breast Cancer Surgery Patients
Vitamin D deficiency is a general problem that vigorously affects human health . Breast cancer is the most frequently diagnosed life-threatening cancer in women and the leading cause of cancer death among women.Vitamin D…
- Trial name
- NCT06551688
- Testing
- Serum 25(OH)D level
- Where
- Egypt
- Volunteers
- 184 people
- Sponsor
- Fayoum University
Vitamin D Deficiency
Effect of Vitamin D3 and Omega-3FA on Leptin and HbA1C With Vitamin D Deficiency
The Combined effect of Vitamin D3 and Omega-3 supplements on serum leptin and Glycated hemoglobin (Hb A1C) levels in Jordanian people with vitamin D deficiency.
- Trial name
- NCT03735303
- Testing
- VD3 group, omega 3 FA group, VD3 and omega- 3FA group
- Where
- Jordan
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
Heart Failure, Iron-deficiency
Beneficial Effects of Vitamin D Combined With Oral Iron Supplementation in Patients With Chronic Heart Failure and Iron Deficiency
The goal of this randomized, controlled, open-label, interventional study is to evaluate whether, in patients with heart failure (HF) and iron deficiency (ID), the administration of vitamin D in combination with sucrosomial iron…
- Conditions
- Heart Failure, Iron-deficiency, Heart Failure, Systolic, Heart Failure NYHA Class II
- Trial name
- VICTORID-HF (NCT05702970)
- Testing
- Sucrosomial iron, Vitamin D, Ferric Carboxymaltose 50 MG/ML
- Volunteers
- 258 people
- Sponsor
- University of Padova
Sickle Cell Disease, Vitamin D Deficiency
High Dose Vitamin D Supplementation in Children With Sickle Cell Disease
Suboptimal vitamin D status is well reported in sickle cell disease (SCD) patients and associated with a negative impact on health-related quality of life (HRQL).
- Conditions
- Sickle Cell Disease, Vitamin D Deficiency, Health Related Quality of Life, Hand Grip Strength
- Trial name
- NCT06274203
- Testing
- Vitamin D3
- Where
- Egypt
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Zagazig University
Vitamin D Deficiency
Effects of Vitamin D Insufficiency in Man
We would like to determine if vitamin D insufficiency exists in different ethnic groups, if it has an effect on bone mass and muscle function, if it has an impact on the function of the cells of the immune system, and if the…
- Trial name
- NCT01848236
- Testing
- Vitamin D2, Vitamin D3
- Where
- United States
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- University of California, Los Angeles
Alopecia Areata, Alopecia Totalis
The Epidemiology, Management and Comorbidities in Alopecia Areata in Czech Republic
The study series consists of three studies with the aim to assess the incidence, prevalence, risk factors, comorbidities and management of patients with alopecia areata in Czech Republic based on the patients and registry of a…
- Conditions
- Alopecia Areata, Alopecia Totalis, Alopecia Universalis, Alopecia Areata (& Ophiasis)
- Trial name
- NCT05098600
- Testing
- Exposure of interest
- Where
- Czechia
- Volunteers
- 123 people
- Sponsor
- Faculty Hospital Kralovske Vinohrady
Vitamin D Deficiency
Effect of Vitamin D-biofortified Eggs on Wintertime Serum 25-hydroxyvitamin D in Adults: Randomized Controlled Trial
While there have been a considerable number of studies on the impact of additional vitamin D in the diets of hens on the resulting egg vitamin D content, the effect of consumption of such vitamin D-enhanced eggs on vitamin D…
- Trial name
- EnhanceDeggs (NCT02678364)
- Testing
- Control eggs, Vitamin D3 eggs, 25-Hydroxyvitamin D3 eggs
- Where
- Ireland
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- University College Cork
Development, Iron Deficiency
Zinc, Iron, Vitamin A and Psychosocial Care for Child Growth and Development
Many Indonesian infants are already iron deficient before they reach the age of six months, which also determines the high prevalence of anemia among under-five children.
- Conditions
- Development, Iron Deficiency, Zinc Deficiency
- Trial name
- NCT02319499
- Testing
- Zinc Alone, Iron and Zinc, Iron, Zinc and Vitamin A
- Where
- Indonesia
- Volunteers
- 800 people, healthy volunteers welcome
- Sponsor
- Universitas Indonesia
Hypovitaminosis D
Cholecalciferol Supplementation for Sepsis in the ICU
Sepsis in a clinical entity that occurs in patients with serious infections. Though the severity of illness may vary, every year, approximately 1.6 million Americans are treated for sepsis.
- Trial name
- CSI (NCT01896544)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Massachusetts General Hospital
Obesity, Vitamin D Deficiency
Impact of Maternal Body Weight on Vitamin D Status During Pregnancy
Research shows high levels of vitamin D deficiency in pregnant women in Northern Ireland. Body composition is a determinant of vitamin D status.
- Trial name
- MO-VITD (NCT02713009)
- Testing
- Pregnancy multi-vitamin (including 10μg vitamin D3), 10μg vitamin D3
- Where
- United Kingdom
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of Ulster
Peri Implant Mucositis, Peri Implant Bone Loss
Local and Systemic Inflammatory Bone Alterations Related to Dental Implant Survival.
Introduction: Dental implants offer a durable, aesthetic, and functional option for tooth replacement. However, they are not immune to failure.
- Conditions
- Peri Implant Mucositis, Peri Implant Bone Loss, Peri Implantitis, Calcium Deficiency
- Trial name
- NCT07766707
- Where
- Spain
- Volunteers
- 192 people
- Sponsor
- University of Barcelona
Vitamin D Deficiency
The Efficacy and the Safety of Vitamin D3 30,000 IU for Loading Dose Schedules
Treatment: A: Slower Loading Group (SLD): 30.000 IU cholecalciferol once weekly for ten weeks, followed by 30.000 IU cholecalciferol every two weeks for four weeks.
- Trial name
- NCT04476511
- Testing
- Cholecalciferol
- Where
- 7 sites in Hungary
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Semmelweis University
Vitamin D Deficiency, Obesity
D-tecting Disease - From Exposure to Vitamin D During Critical Periods of Life
Vitamin D deficiency is common among otherwise healthy pregnant women and may have consequences for them as well as the early development and long-term health of their children.
- Conditions
- Vitamin D Deficiency, Obesity, Diabetes Mellitus, Pre-Eclampsia
- Trial name
- D-tect (NCT03330301)
- Testing
- D-tect
- Where
- Denmark
- Volunteers
- 222,776 people
- Sponsor
- Bispebjerg Hospital