Clinical trials: Deficiency, Vitamin D
Vitamin D Deficiency
Reference Interval of Vitamin D of Coastal Fishermen in Cox's Bazar District of Bangladesh
Lack of adequate sun exposure due to urbanization is prone to hypovitaminosis D. Vitamin D (25-hydroxyvitamin D) deficiency is now a major health concern in the western world.
- Trial name
- NCT04986319
- Testing
- Serum vitamin D assay
- Where
- 2 sites in Bangladesh
- Volunteers
- 556 people, healthy volunteers welcome
- Sponsor
- Bangladesh Institute of Research and Rehabilitation in Diabetes, Endocrine and Metabolic Disorders
Rendu Osler Disease
Calcium-phosphate Complications Induced by IV Iron Supplementation in Patients With Rendu-Osler Disease
Hypophosphatemia induced by treatments with injectable iron is a frequent side effect already reported during marketing. Situations of osteomalacia secondary to these hypophosphatemias are rarer and reported in the form of case…
- Trial name
- OS-LERETRO (NCT05544669)
- Where
- France
- Volunteers
- 220 people
- Sponsor
- University Hospital, Strasbourg, France
Acute Myeloid Leukemia, Vitamin D Deficiency
Vitamin D Effect on A Disintegrin-like And Metalloprotease Thrombospondin1 Motif 13& Interleukin 6 in Leukemia
A Disintegrin-like And Metalloprotease with Thrombospondin type 1 motif 13 (ADAMTS13) deficiency was incriminated in poor prognosis, high probability of serious complications and mortality in acute myeloid leukemia (AML)…
- Conditions
- Acute Myeloid Leukemia, Vitamin D Deficiency, ADAMTS13, Interleukin 6
- Trial name
- NCT05149339
- Testing
- Cholecalciferol 2800 I.U. ml oral drops
- Where
- Egypt
- Volunteers
- 38 people, healthy volunteers welcome
- Sponsor
- Zagazig University
Secondary Hyperparathyroidism, Chronic Kidney Disease
Vitamin D Deficiency in Chronic Kidney Disease (CKD) Patients
This is an open label, single center, randomized, active comparator controlled study, comparing the effects of vitamin D replacement using oral ergocalciferol versus paricalcitol on parathyroid hormone (PTH) levels in patients…
- Trial name
- NCT00958451
- Testing
- Paricalcitol, Ergocalciferol
- Where
- United States
- Volunteers
- 80 people
- Sponsor
- Salem Veterans Affairs Medical Center
Hypovitaminosis D
Vitamin D Status and the Adequacy of Vitamin D Intake in Early Preterm Infants
Vitamin D is an essential nutrient. Deficiency of vitamin D is widespread. The prevalence of vitamin D deficiency in early preterm infants is unknown.
- Trial name
- NCT01793402
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Vitamin D Deficiency
Prognostic Value of Vitamin D Levels in Egyptian Females With Breast Cancer
In our study; we aim to analyze the correlation between pre-treatment serum vitamin D (VD) levels and breast cancer prognostic features in newly diagnosed breast cancer patients presenting to our department.
- Trial name
- NCT03594214
- Testing
- serum vitamin d level measured by ELISA kit
- Where
- Egypt
- Volunteers
- 222 people
- Sponsor
- Assiut University
Hyperparathyroidism; Secondary, Renal
Efficacy and Safety of Cinacalcet in Ca, P and iPTH Levels in Patients With Mild, Moderate and Severe SHPT
1. To evaluate achievement ratio of iPTH,Calcium and phosphorus after taking Cinacalcet HCL in hemodialysis subjects with mild, moderate and severe SHPT; 2.
- Trial name
- ACTIVE (NCT03123406)
- Testing
- Cinacalcet HCl
- Where
- China
- Volunteers
- 750 people
- Sponsor
- Kyowa Kirin China Pharmaceutical Co., Ltd.
Arterial Dysfunction, Chronic Kidney Disease
Vitamin D and Arterial Function in Patients With Chronic Kidney Disease
The purpose of this study is to determine whether nutritional (cholecalciferol) or active vitamin D (calcitriol) supplementation improves vascular endothelial function in patients with stage IIIB and IV chronic kidney disease…
- Trial name
- NCT01384539
- Testing
- Cholecalciferol, Calcitriol
- Where
- United States
- Volunteers
- 128 people
- Sponsor
- University of Colorado, Denver
Ckd-Mbd
Relationship Between Cardiopulmonary Exercise Testing and Ca-P in Chronic Kidney Disease (CKD)
Reductions in exercise capacity associated with exercise intolerance augment cardiovascular disease risk and predict mortality in chronic kidney disease.
- Trial name
- NCT04013139
- Testing
- CPET
- Where
- Iran
- Volunteers
- 200 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Hypophosphatasia
Post-approval Clinical Study of Asfotase Alfa Treatment for Patients With Hypophosphatasia (HPP) in Japan
This is a multicenter study in Japan. Eleven sites which have already participated in the investigator-initiated clinical study (Early Access Program) will participate in this study.The objective of this study is to gain further…
- Trial name
- NCT02531867
- Testing
- Asfotase Alfa
- Volunteers
- 13 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Type 2 Diabetes Mellitus, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.
Type 2 diabetes (T2D) is an increasingly common and serious condition. Studies show that low vitamin D levels are associated with increased diabetes risk and that vitamin D may protect against diabetes by reducing chronic…
- Trial name
- EVIDENCE (NCT01726777)
- Testing
- Control, Vitamin D
- Where
- 3 sites in Canada
- Volunteers
- 71 people
- Sponsor
- University of Toronto
HIV Infections
Vitamin D Reabsorption in Adolescents and Young Adults With HIV Infection
The purpose of this study is to test the effects of Vitamin D on renal phosphate and bone loss, which are common in HIV infected adolescents and young adults being treated with tenofovir.
- Trial name
- NCT00490412
- Testing
- Vitamin D supplement
- Where
- 15 sites in United States, Puerto Rico
- Volunteers
- 207 people
- Sponsor
- University of North Carolina, Chapel Hill
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.
Vitamin D Deficiency
Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)
The investigators would like to evaluate the effect of serum 25-hydroxy vitamin D level on post-operative short-term functional outcomes after total hip arthroplasty (THA).
- Trial name
- NCT01397383
- Where
- United States
- Volunteers
- 219 people, healthy volunteers welcome
- Sponsor
- Hospital for Special Surgery, New York
Diabetes Mellitus Type 2, Vitamin D Deficiency
Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2
Background and Objectives : The presence of vitamin D deficiency in patients with type 2 diabetes mellitus (T2DM) is associated with an increased risk of cardiovascular disease (CVD).
- Trial name
- DIMENSION (NCT01741181)
- Testing
- Vitamin D supplementation
- Where
- Singapore
- Volunteers
- 64 people
- Sponsor
- Tan Tock Seng Hospital
Vitamin D Deficiency
Improving Functionality in Older People
The study will examine if overall functionality of older adults with Vitamin D insufficiency can be improved by optimal Vitamin D replacement over a period of approximately one year.
- Trial name
- NCT03611049
- Testing
- High dose Vitamin D3, Low dose Vitamin D3
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Texas Tech University Health Sciences Center
Liver Transplant Disorder, Vitamin D Deficiency
Vitamin D Levels in Liver Transplantation Recipients Prospective Observational Study
Interest in vitamin D has seen an unprecedented revival sparked by the finding that vitamin D has pleiotropic effects with an intriguing link to the critically ill patients.
- Trial name
- D-LIVER-X (NCT03234218)
- Where
- Italy
- Volunteers
- 68 people
- Sponsor
- The Mediterranean Institute for Transplantation and Advanced Specialized Therapies
Atopic Dermatitis, Vitamin D Deficiency
Vitamin D Deficiency and Atopic Dermatitis
Atopic dermatitis is a chronic skin disease characterized by a defective skin barrier, inflammation, and increased propensity for skin infections.
- Trial name
- NCT01337635
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Medical College of Wisconsin
Calcium and Vitamin D Deficiencies
Calcichew D3 Preference Study in Participants Eligible for Calcium and Vitamin D Supplementation.
The purpose of this study is to compare the preference of Calcichew D3 500/400 (containing 500 mg calcium and 400 IU of vitamin D) with Adcal-D3 600/400 (containing 600 mg of calcium and 400 IU of vitamin D) in Test Group 1, and…
- Trial name
- NCT02457247
- Testing
- Calcichew D3, Adcal-D3, Kalcipos-D
- Where
- 9 sites in Germany, United Kingdom
- Volunteers
- 276 people
- Sponsor
- Takeda
Myopathic Symptoms
Is Treatment of Vitamin D Deficiency Associated With Resolution of Statin-Induced Muscular Symptoms
Statins are a class of drugs that are highly effective at lowering cholesterol levels. However, compliance is often limited by symptoms of muscle pain.
- Trial name
- NCT01568255
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 11 people, healthy volunteers welcome
- Sponsor
- Cedars-Sinai Medical Center
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