Clinical trials: Deficiency, Vitamin D
Covid19, Vitamin D Deficiency
High Dose Vitamin-D Substitution in Patients With COVID-19: a Randomized Controlled, Multi Center Study
The world is currently facing a pandemic with the coronavirus (SARS-CoV-2) which leads to the disease of COVID-19. Risk factors for a poor outcome of COVID-19 have so far been identified as older age and co-morbidity including…
- Conditions
- Covid19, Vitamin D Deficiency, Corona Virus Infection, ARDS
- Trial name
- VitCov (NCT04525820)
- Testing
- Single high dose vitamin D, Treatment as usual vitamin D
- Where
- 2 sites in Switzerland
- Volunteers
- 80 people
- Sponsor
- Prof. Dr. Jörg Leuppi
Osteoporosis, Aging
Vitamin D Supplementation in Older Women
The purpose of this study is to examine the effects of several doses of vitamin D on hormones related to bone, calcium absorption, bone density and muscle strength.
- Trial name
- VIDOS (NCT00472823)
- Testing
- Vitamin D3, Calcium Citrate (Citracal)
- Where
- United States
- Volunteers
- 273 people
- Sponsor
- Creighton University
Vitamin D Deficiency, Nutritional Deficiency
Mothers' Own Milk Optimization for Preterm Infants Project (MoMO PIP) Pilot Study
The overall goal of this study is to assess maternal vitamin D status along with diet, and milk composition, and in turn, to evaluate if infant vitamin D status can be improved with increased maternal supplementation and diet…
- Trial name
- MoMO PIP (NCT04629534)
- Testing
- High dose Cholecalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Medical University of South Carolina
Vitamin D Deficiency
Vitamin Deficiency in Immigrants, a Treatment Study
The purpose of this study is to determine the efficacy of different doses of vitamin D in persons, immigrated to Sweden from Middle East or Africa, with decreased S vitamin D.
- Trial name
- VIDI2 (NCT01419119)
- Testing
- Cholecalciferol high dose at Vitamin D deficiency, Cholecalciferol median dose at Vitamin D insufficiency, Cholecalciferol low dose at Vitamin D deficiency
- Where
- Sweden
- Volunteers
- 160 people
- Sponsor
- Umeå University
Muscle Weakness, Vitamin D Deficiency
Vitamin D and Physical Performance Before and After Intervention and Birth Outcome in Pregnant Somali and Swedish Women
Somali migrant women, often in veiled clothing, living in a town in mid Sweden on the 60:th parallel were observed to be weak and to have a waddling gate.
- Trial name
- NCT02922803
- Testing
- 1 combination tablet of Vitamin D3/calcium per day, 2 combination tablets of Vitamin D3/calcium per day
- Where
- Sweden
- Volunteers
- 123 people, healthy volunteers welcome
- Sponsor
- Uppsala University
Vitamin D Deficiency
Vitamin D Deficiency and Placental Calcification in Low-risk Obstetric Population - Are They Related?
Maternal vitamin D deficiency has been suggested to influence fetal and neonatal health. The role of placenta in vitamin D regulation is known but alteration of Vitamin D levels at placental pathologies is unknown.
- Trial name
- NCT02190396
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zekai Tahir Burak Women's Health Research and Education Hospital
Breast Cancer
Vitamin D Supplementation to Correct the Vitamin D Deficiency for Breast Cancer
An open clinical trial not randomized, multicentric. This study search to evaluate vitamin D supplementation efficacy at high dose (UVEDOSE, colecalciferol, oral solution at 100 000 UI) of vitamin D on day 1 of each cycles for…
- Trial name
- OPTIVIT (NCT04091178)
- Testing
- VITAMIN D
- Where
- France
- Volunteers
- 57 people
- Sponsor
- Institut du Cancer de Montpellier - Val d'Aurelle
Vitamin D Deficiency
Effect of Vitamin D3 and Omega-3FA on Estradiol
The effect of vitamin D3 and omega-3 Fatty acids on estradiol levels.
- Trial name
- NCT03333564
- Testing
- VD3, Omega3-FA, VD3 and Omega-3FA
- Volunteers
- 116 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
Inflammatory Bowel Disease, Crohn Disease
High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Biologic Therapy
The investigators will be administering oral high dose interval vitamin D, concurrently when participants are receiving biologic therapy for their inflammatory bowel disease.
- Conditions
- Inflammatory Bowel Disease, Crohn Disease, Ulcerative Colitis, Vitamin D Deficiency
- Trial name
- NCT04331639
- Testing
- vitamin D3
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Boston Children's Hospital
Vitamin D Deficiency, Pre-Eclampsia
Vitamin D Level and Its Relation to Pre-eclampsia and Eclampsia
To compare 25(OH)D level in patients with pre-eclampsia, eclampsia and normotensive pregnant women as well as to study the prevalence of Vitamin D deficiency among the 3 groups.
- Conditions
- Vitamin D Deficiency, Pre-Eclampsia, Eclampsia, Antepartum
- Trial name
- NCT03882099
- Testing
- Determination of Vitamin D by ELISA
- Where
- Egypt
- Volunteers
- 500 people
- Sponsor
- Cairo University
Vitamin D Deficiency
The Effect of Vitamin D Supplementation on Cardiovascular Risk Factors
Six-hundred subjects with vitamin D deficiency will be randomized to vitamin D 3000 IU per day versus placebo for 4 months, with effects on cardiovascular risk factors as main endpoint
- Trial name
- D-COR (NCT02750293)
- Testing
- Cholecalciferol
- Where
- Norway
- Volunteers
- 411 people, healthy volunteers welcome
- Sponsor
- University of Tromso
Vitamin D Deficiency
Vitamin D Supplementation in Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE) is a systemic autoimmune disorder. It mainly involves the skin, the joints, the nervous system and the kidney and may be life threatening.
- Trial name
- VITALUP (NCT01413230)
- Testing
- cholecalciferol
- Where
- 3 sites in France
- Volunteers
- 20 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Autism
Influence of Vitamin D Deficiency on the Development of Autism
The investigators wish to study the effect of Vitamin D on the development of autism in children. The investigators will also investigate the environmental and genetic influences on the level of Vitamin D in children with autism.
- Trial name
- NCT02222311
- Testing
- Blood Samples
- Where
- Israel
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Vitamin D Deficiency
Genetic, Dietary and Environmental Influences on Vitamin D Metabolism
Determine differences in serum vitamin D metabolism by genetic ancestry.
- Trial name
- NCT02590614
- Testing
- 800 IU Vitamin D
- Where
- United States
- Volunteers
- 412 people, healthy volunteers welcome
- Sponsor
- Milton S. Hershey Medical Center
Connective Tissue Diseases
Connective Tissue Diseases and Vitamin D Deficiency
Connective tissue disease (CTD) covers all heterogeneous and broad immunological diseases. These immunological diseases are characterized by inflammation, tissue damage, and abnormal repair.
- Trial name
- NCT05065814
- Testing
- Systemic lupus erythematosus group, Systemic sclerosis group, Healthy control group
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Gazi University
Tibial Fractures, Vitamin D Deficiency
Vitamin D Supplementation and Tibia Fracture. Does it Improve Healing Rate?
This study evaluates the effect of Vitamin D3 supplementation in healing rate of tibia fractures in adult patients with low vitamin D.
- Conditions
- Tibial Fractures, Vitamin D Deficiency, Fracture Healing
- Trial name
- ViDco (NCT03232216)
- Testing
- Vitamin D3.
- Where
- Chile
- Volunteers
- 682 people, healthy volunteers welcome
- Sponsor
- Hospital del Trabajador de Santiago
AKI, CKD
Genetics in the Progression of Nephropathies
This study evaluates the role of genetic in the development and progression of different nephropaties with particular attention to: AKI CKD Hypertension ADPKD CKD-MBD Patients with decompensated heart failure undergoing either…
- Conditions
- AKI, CKD, Ckd-Mbd, CKD (Chronic Kidney Disease) Stage 5D
- Trial name
- NCT06416761
- Testing
- genetic polymorphisms
- Where
- Italy
- Volunteers
- 10,000 people
- Sponsor
- Ospedale San Raffaele
Vitamin D Deficiency
A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption
This study will examine whether the amount and type of fat, mono-unsaturated fat (MUFA) vs. poly-unsaturated fat (PUFA), in a meal affects the absorption of vitamin D, which is taken after that meal.
- Trial name
- MUFA/PUFA (NCT01508845)
- Testing
- cholecalciferol
- Where
- United States
- Volunteers
- 61 people, healthy volunteers welcome
- Sponsor
- Tufts University
VITAMIN D DEFICIENCY
An Evaluation of the Effect of Vitamin D Supplementation on the Cognitive Function of Older Subjects With Low Levels of This Vitamin
Background: Ageing is associated with an increased risk of cognitive decline and depression. Vitamin D plays an important role in many of the symptoms and conditions related to advanced age, including impaired balance, falls and…
- Trial name
- NCT02381600
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 1 people
- Sponsor
- Meir Medical Center
Diabetes Type 2, Diabetic Neuropathies
High vs Low Dose Vitamin D in Patients With Diabetic Peripheral Neuropathy
Aim. To assess the effect of different doses of vitamin D supplementation on peripheral neuropathy in patients with type 2 diabetes mellitus (T2DM).
- Conditions
- Diabetes Type 2, Diabetic Neuropathies, Vitamin D Deficiency
- Trial name
- NCT04377399
- Testing
- Vitamin D
- Where
- Russia
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
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