Clinical trials: Vitamin D Insufficiency
Anemia of Chronic Kidney Disease
Vitamin D as a Modifier of Serum Hepcidin in Children With Chronic Kidney Disease
This research is being done to study the effectiveness of vitamin D (cholecalciferol) to modify hepcidin levels in children with chronic kidney disease (CKD). Anemia is a common problem in children with CKD.
- Trial name
- D-fense (NCT01532349)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 34 people
- Sponsor
- Johns Hopkins University
Critically Ill, Acute Kidney Injury
Activated Vitamin D for the Prevention and Treatment of Acute Kidney Injury
The purpose of this study is to assess the efficacy of calcifediol (25-hydroxyvitamin D) and calcitriol (1,25-dihydroxyvitamin D) in preventing and reducing the severity of acute kidney injury (AKI) in critically ill patients.
- Trial name
- ACTIVATE-AKI (NCT02962102)
- Testing
- Calcifediol, Calcitriol
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- David Leaf
Chronic Kidney Disease, End Stage Renal Disease
ADVANCE: Study to Evaluate Cinacalcet Plus Low Dose Vitamin D on Vascular Calcification in Subjects With Chronic Kidney Disease Receiving Hemodialysis
The purpose of this study is to evaluate whether cinacalcet + low dose vitamin D attenuates the progression of vascular calcification over one year, compared with a treatment regimen that includes flexible vitamin D dosing in the…
- Conditions
- Chronic Kidney Disease, End Stage Renal Disease, Coronary Artery Calcification, Vascular Calcification
- Trial name
- NCT00379899
- Testing
- cinacalcet
- Volunteers
- 360 people
- Sponsor
- Amgen
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
End-Stage Renal Disease
Role of Extrarenal 1-Alpha-Hydroxylase in Patients With End Stage Renal Disease
The goal of this study is to evaluate the role of nutritional Vitamin D deficiency as a potential contributor to the morbidity witnessed in patients with end-stage renal disease
- Trial name
- NCT00677534
- Testing
- Cholecalciferol
- Volunteers
- 7 people
- Sponsor
- University of Kansas
Cardiorenal Syndrome, Chronic Allograft Nephropathy
Paricalcitol Versus Calcitriol for the Management of Renocardiac Syndrome in Renal Transplant Patients
We hypothesize that paricalcitol and calcitriol in dose-dependent manner are effective for the management of chronic allograft dysfunction (CAD), protection and repair of kidney and heart, management of chronic renocardiac…
- Trial name
- NCT01265615
- Testing
- Paricalcitol, Calcitriol, Cholecalciferol
- Where
- 2 sites in Netherlands, Russia
- Volunteers
- 109 people
- Sponsor
- Ural State Medical University
Asthma
Vitamin D and Severe Asthma Exacerbations
This study of vitamin D is designed to assess both the safety and efficacy of potential doses (2,000 IU/day and 4,000 IU/day) in raising a vitamin D level to a normal range in a short period of time (e.g.
- Trial name
- SAVED-P (NCT01921894)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- University of Pittsburgh
Chronic Kidney Disease (CKD), End-stage Renal Disease (ESRD)
Impact of Vitamin D Therapies on Chronic Kidney Disease
This investigation will consist of a prospective study utilizing two separate populations of patients with 25(OH)D deficiency, one population with chronic kidney disease (CKD) and one with normal renal function.
- Trial name
- NCT01222234
- Testing
- Cholecalciferol - CKD, Calcitriol - CKD, Cholecalciferol - non-CKD
- Where
- United States
- Volunteers
- 56 people
- Sponsor
- University of Kansas Medical Center
Secondary Hyperparathyroidism, Chronic Kidney Disease
Paricalcitol Versus Calcitriol for Efficacy and Safety in Stage 3/4 Chronic Kidney Disease (CKD) With Secondary Hyperparathyroidism (SHPT)
Secondary Hyperparathyroidism (SHPT) occurs in many patients with kidney disease and leads to bone disease. Active forms of vitamin D, calcitriol and paricalcitol, treat SHPT, but may have different effects on blood calcium.
- Trial name
- PACE (NCT00823303)
- Testing
- Paricalcitol, Calcitriol
- Where
- 4 sites in United States
- Volunteers
- 110 people
- Sponsor
- Washington University School of Medicine
Renal Insufficiency, Chronic, Kidney Failure, Chronic
Effect of Vitamin D Supplementation on Balance in CKD
Patients with end-stage renal disease on dialysis (ESRD5D) are 4-5x more likely to suffer from a fracture. Fractures can occur spontaneously but typically occur after a fall.
- Trial name
- NCT03710161
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- University of Nebraska
End Stage Renal Disease
DIVINE: Dialysis Infection and Vitamin D In New England
Infection is the second-leading cause of death in individuals requiring dialysis treatment for kidney failure. New research suggests the high risk of infection may be due in part to low levels of vitamin D, which are extremely…
- Trial name
- NCT00892099
- Testing
- Ergocalciferol
- Where
- 3 sites in United States
- Volunteers
- 105 people
- Sponsor
- Massachusetts General Hospital
Vitamin D Deficiency, Vitamin D Insufficiency
Evaluating the Effect of SOLIUS UV Light Source in Improving Vitamin D Status
The aim of this study is to evaluate the safety and effectiveness of the SOLIUS System in improving serum levels of 25-hydroxyvitamin D in vitamin D deficient/ insufficient adults of various skin types.
- Trial name
- NCT04780776
- Testing
- UVB treatment
- Where
- United States
- Volunteers
- 69 people, healthy volunteers welcome
- Sponsor
- Boston University
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
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
Respiratory Failure
Vitamin D in Ventilated ICU Patients
The increasing rate of hospital-acquired infection and antibiotic resistance are major causes of prolonged ICU stay and death in hospitalized patients.
- Trial name
- R21 HL-110044 (NCT01372995)
- Testing
- Enteral Vitamin D3 50,000 IU, Enteral Vitamin D3 100,000IU, Inactive substance
- Where
- 2 sites in United States
- Volunteers
- 31 people
- Sponsor
- Emory University
Hemodialysis Patients, Vitamin D Insufficiency
Effect of Omega-3 Fatty Acid on Vitamin D Activation
Extra-renal sources of 1, 25-dihydroxyvitamin D can be increased to normal serum 1, 25-dihydroxyvitamin D levels in chronic kidney disease patients after administration of high dose 25-hydroxyvitamin D.
- Conditions
- Hemodialysis Patients, Vitamin D Insufficiency, Vitamin D Deficiency
- Trial name
- NCT01596842
- Testing
- Omega-3 fatty acid ethylester 90, Olive oil, cholecalciferol
- Where
- South Korea
- Volunteers
- 17 people
- Sponsor
- Dong-A University
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Extension Study of CTAP101-CL-3001 or CTAP101-CL-3002
This extension study of subjects previously enrolled in studies CTAP101-CL-3001 or CTAP101-CL-3002 allows long term evaluation of the safety and efficacy of CTAP101 Capsules in reducing elevated intact parathyroid hormone (iPTH)…
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT02282813
- Testing
- CTAP101 Capsules, Calcitriol, Doxercalciferol
- Volunteers
- 298 people
- Sponsor
- OPKO Health, Inc.
Chronic Renal Failure
Does Intravenous Iron Therapy Decrease Serum Phosphorous Levels?
Intravenous iron therapy is common and effective, with few side effects. Two formulations are used, venofer or iron sucrose and ferrlecit, or ferric gluconate.
- Trial name
- NCT02420119
- Testing
- non interventional
- Where
- Israel
- Volunteers
- 53 people
- Sponsor
- Frieda Wolf
Vitamin D Deficiency
Treatment of Vitamin D Insufficiency
The purpose of this study is to answer the following questions: Does vitamin D increase calcium absorption, bone mass and muscle mass and function in women past menopause who have mildly low vitamin D levels? Do these benefits…
- Trial name
- NCT00933244
- Testing
- High Dose Vitamin D3, Low Dose Vitamin D3
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Chronic Kidney Disease
Clearance of 25-hydroxyvitamin D3 During Vitamin D3 Supplementation
The goal of this study is to determine how 25(OH)D3 clearance is affected by vitamin D3 supplementation using a gold standard pharmacokinetic approach.
- Trial name
- CLEAR-PLUS (NCT03576716)
- Testing
- D6-25-hydroxyvitamin D3
- Where
- United States
- Volunteers
- 19 people
- Sponsor
- University of Washington