Clinical trials: Vitamin D Substitution
RENAL INSUFFICIENCY, CHRONIC, Hyperparathyroidism, Secondary
Evaluation of Colecalciferol Substitution in Dialysis Patients
The purpose of this study is to determine the effect of a colecalciferol substitution in dialysis patients on bone metabolism and immune system
- Trial name
- NCT00397475
- Testing
- Colecalciferol
- Where
- Germany
- Volunteers
- 50 people
- Sponsor
- University Hospital, Saarland
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
Chronic Heart Failure, Vitamin D Adverse Reaction
Vitamine D Treatment in Chronic Heart Failure
The investigators hypothesized that in vitamin D deficiency the 25-OH-D3 vitamin substitution improve the heart function in chronic heart failure.
- Trial name
- NCT01535196
- Testing
- Vigantol oil and MCT oil
- Where
- 2 sites in Hungary
- Volunteers
- 8 people
- Sponsor
- Semmelweis University
Obesity
Duration of Vitamin D Stores After Prolonged Vitamin D Substitution
Ingested or skin produced vitamin D is either hydroxylated in the liver to 25-hydroxyvitamin D (25(OH)D), metabolized and excreted in the urine, or stored in adipose and other tissues.
- Trial name
- NCT01729013
- Where
- Norway
- Volunteers
- 78 people, healthy volunteers welcome
- Sponsor
- University of Tromso
CD20+ Aggressive B-Cell Lymphoma
OPTIMAL>60 / DR. CHOP, Improvement of Therapy of Elderly Patients with CD20+ DLBCL Using Rituximab Optimized and Liposomal Vincristine
The purpose of this study is to improve the outcome of elderly patients with CD20-Aggressive B-Cell Lymphoma and to reduce the toxicity of standard used Immuno-Chemotherapy by using an optimised schedule of the monoclonal…
- Trial name
- OPTIMAL>60 (NCT01478542)
- Testing
- Conventional Vincristine, Liposomal Vincristine, Ricover-scheme rituximab
- Where
- 127 sites in Germany
- Volunteers
- 1,152 people
- Sponsor
- Universität des Saarlandes
Chronic Pancreatitis
The Effect of Vitamin D Substitution on the Development of Chronic Pancreatitis
Acute pancreatitis (AP) may develop to chronic pancreatitis (CP). In Finland, the ethiology is alcohol in about 80% of the cases.
- Trial name
- NCT02965898
- Testing
- Vitamin D 100ug, Vitamin D 10ug
- Where
- Finland
- Volunteers
- 260 people
- Sponsor
- Tampere University Hospital
Chronic Lymphoid Leukemia
The Effect of 25-OH-Vitamin-D3 Substitution in Patients With Malignant and Immune-hematologic Diseases
Recent data have shown that the inadequate vitamin D status plays a role in the manifestation of the haematologic tumors and serum vitamin D level has a prognostic role also as it determines the tumor mortality.
- Trial name
- D-HEM (NCT01518959)
- Testing
- Cholecalciferol, oleum neutralicum
- Where
- Hungary
- Volunteers
- 31 people
- Sponsor
- Semmelweis University
Primary Immune Deficiency Disorder
Study of Vitamin D3 Substitution to Patients With Primary Immunodeficiency
Hypothesis: Cholecalciferol (vitamin D3) prevent respiratory tract infections in patients with primary immunodeficiency.
- Trial name
- VITAPID (NCT01131858)
- Testing
- Vigantol
- Where
- Sweden
- Volunteers
- 140 people
- Sponsor
- Karolinska University Hospital
Chronic Pancreatitis, Malabsorption Syndromes
Vitamin D Substitution for Patients With Chronic Pancreatitis and Malabsorption
Purpose: The overall objective of this study is to learn more about the disease chronic pancreatitis and thus contribute to better treatments.
- Trial name
- NCT01141998
- Testing
- Calcium, Dietary, Cholecalciferol, UVB
- Where
- Denmark
- Volunteers
- 27 people
- Sponsor
- Hvidovre University Hospital
Vitamin D Substitution
Oral Nano Vitamin D Supplementation Efficacy in Inflammatory Bowel Disease
The purpose of this study is to compare efficacy of the suplementation using the conventional oral and oral nano form of the calciferol.
- Trial name
- NCT05733117
- Testing
- Vitamin D
- Where
- 2 sites in Czechia
- Volunteers
- 120 people
- Sponsor
- Tomas Bata Hospital, Czech Republic
Kidney Transplantation, Vitamin D Deficiency
Vitamin D3 Substitution in Vitamin D Deficient Kidney Transplant Recipients
The purpose of the study is to evaluate the effects of Cholecalciferol (Vitamin D3) substitution on the posttransplant outcome (glomerular filtration rate as well as serum creatinine levels, number of acute rejection episodes…
- Conditions
- Kidney Transplantation, Vitamin D Deficiency, Renal Osteodystrophy
- Trial name
- VITA-D (NCT00752401)
- Testing
- Cholecalciferol
- Where
- Austria
- Volunteers
- 200 people
- Sponsor
- Medical University of Vienna
Vitamin D Deficiency
Oral Vitamin D Substitution Weekly or Monthly and Adherence
Vitamin D deficiency (defined as 25(OH)-vitamin D serum level <50 nmol/l) is cured with supplementation by mouth. National guidelines recommend the administration of 800 IU cholecalciferol daily for an effective treatment…
- Trial name
- NCT03141593
- Testing
- Vitamin D: liquid form, start weekly, Vitamin D: liquid form, start monthly, Vitamin D: solid form, start weekly
- Where
- Switzerland
- Volunteers
- 97 people
- Sponsor
- University Hospital, Basel, Switzerland
Vitamin D Substitution
Vitamin D Substitution During Winter Time
The purpose of this study is to confirm anticipated substitution dose of the vitamin D for sustained blood level during winter time in patients with inflammatory bowel diseases (IBD)
- Trial name
- NCT02958501
- Testing
- Colecalciferol
- Where
- Czechia
- Volunteers
- 176 people
- Sponsor
- Faculty Hospital Kralovske Vinohrady