Clinical trials: D Vitamin Deficiency Patients
Chronic Kidney Disease, Renal Osteodystrophy
Serum Sclerostin Levels, Cardiovascular Parameters and Carpal Tunnel Syndrome in Maintenance Hemodialysis Patients
Sclerostin, the product of the SOST gene, located on chromosome 17, locus q11.2 in humans, was originally believed to be a non-classical Bone morphogenetic protein (BMP) antagonist.Sclerostin was recently identified as a…
- Conditions
- Chronic Kidney Disease, Renal Osteodystrophy, Left Ventricular Hypertrophy
- Trial name
- NCT01382966
- Where
- Turkey (Türkiye)
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- RFM Renal Treatment Services
Diabetes Mellitus, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Hemoglobin A1c
This is a prospective, randomized, non-blinded interventional study that will investigate the effect of a vitamin D supplement on HbA1c in patients with uncontrolled type 2 diabetes mellitus (DM) and vitamin D deficiency.
- Trial name
- NCT01354262
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 150 people
- Sponsor
- Ascension Health
Inflammatory Bowel Diseases, Vitamin D Deficiency
Vitamin D Repletion and Maintenance in IBD: How Much and How Often
Inflammatory bowel disease (IBD), which includes ulcerative colitis (UC) and Crohn's disease (CD), are chronic relapsing inflammatory conditions of the gastrointestinal tract.
- Trial name
- NCT03053414
- Testing
- Vitamin D (ergocalciferol and/ or cholecalciferol)
- Where
- United States
- Sponsor
- Cedars-Sinai Medical Center
Vitamin D Deficiency, Periodontitis
25-Hydroxyvitamin D Levels in Patients With Periodontitis (Stage III)
Periodontitis; is an inflammatory disease of tissues characterized by bone destruction around the teeth. Vitamin D plays an important role in several inflammatory diseases by promoting the expression of inflammatory cytokines…
- Trial name
- NCT05343273
- Testing
- taking a blood sample
- Where
- Turkey (Türkiye)
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Ataturk University
Vitamin D Deficiency
Interventional Trial of Vitamin D Deficiency in the Patients of General Departments
The purpose of the study is to examine the vitamin D state of elder patients in therapeutic departments and to compere the treatment during the hospitalization with the out-patient treatment.
- Trial name
- NCT00640237
- Testing
- Alpha-D3
- Where
- Israel
- Volunteers
- 300 people
- Sponsor
- Rambam Health Care Campus
Hypophosphatasia (HPP)
A Retrospective Study of the Natural History of Patients With Severe Perinatal and Infantile Hypophosphatasia (HPP)
This study aims to characterize the natural history of patients with severe perinatal or infantile onset HPP.
- Trial name
- NCT01419028
- Where
- 12 sites in United States, Australia and 5 more
- Volunteers
- 48 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Polycystic Ovary Syndrome, Vitamin D Deficiency/Insufficiency
The Effect of Calcium and Vitamin D Supplements on Metabolic and Hormonal Disturbances in Polycystic Ovary Syndrome Patients
The aim of this study is to investigate the safety and metabolic-hormonal efficiency of supplementation vitamin D deficient/insufficient PCOS women with (calcium +vitamin D + metformin) for 8 weeks compared to (placebo+…
- Trial name
- NCT03792984
- Testing
- Vitamin D3, Calcium Carbonate, Metformin
- Where
- 2 sites in Syria
- Volunteers
- 40 people
- Sponsor
- Damascus University
COVID-19, Vitamin D Deficiency
Investigating the Role of Vitamin D in the Morbidity of COVID-19 Patients
The 2019 novel coronavirus disease (COVID-2019) pandemic is an enormous health issue of worldwide scale. Prevention and/or treatment with a widely-available and already-licensed product such as vitamin D (cholecalciferol) could…
- Trial name
- NCT04386044
- Where
- United Kingdom
- Volunteers
- 986 people
- Sponsor
- Tameside General Hospital
Infertility
Vitamin D Deficiency and Ovarian Reserve Among Infertile Patients
The role of vitamin D deficiency in female reproduction remains controversial. Early retrospective studies were inconsistent regarding the effect of serum 25-OH vitamin D levels on pregnancy rates in women undergoing in vitro…
- Trial name
- NCT01999608
- Where
- Belgium
- Volunteers
- 283 people
- Sponsor
- Universitair Ziekenhuis Brussel
HIV Seropositive
Study of Vitamin D Supplementation to Male HIV Sero-positive Patients
The investigators want to investigate if HIV sero-positive males benefit from vitamin D supplementation. The study runs in 16 weeks and the participants are treated with one of three placebo controlled regimes (tablets): 1.
- Trial name
- NCT00990678
- Testing
- Rocaltrol, Vitamin D, Calcium
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Osteomalacia
Ga-DOTATATE PET for Phosphaturic Mesenchymal Tumors in Patients With Tumor Induced Osteomalacia
The researchers are trying to evaluate a newer imaging technique (Ga-DOTATATE PET/CT) to see if it is more sensitive to localize the source of the hormone, which has caused the low phosphate levels.
- Trial name
- NCT03736564
- Testing
- 68Ga-DOTATATE PET/CT
- Where
- United States
- Volunteers
- 18 people
- Sponsor
- Mayo Clinic
Vitamin D Deficiency, Hepatocellular Carcinoma
The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant List
The purpose of this study is to investigate the effect of two different doses of vitamin D3 (2000 IU vs. 4000 IU) on serum 25-hydroxyvitamin D (25OHD) levels in patients with hepatocellular carcinoma on the liver transplant list.
- Trial name
- NCT01575717
- Testing
- Vitamin D3 4000 IU, Vitamin D3 2000 IU
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- Andrea Branch
Chronic Kidney Disease Stage 5
Efficacy of Plant-protein Diets in Patients With Chronic Kidney Disease
The purpose of this study is to evaluate the efficacy of plant-protein diets for 12 weeks in patients with advanced chronic kidney disease.
- Trial name
- NCT05350098
- Testing
- Plant-protein Diets, Control Diets
- Where
- Japan
- Volunteers
- 40 people
- Sponsor
- Osaka University
Polycystic Ovary Syndrome, Vitamin D Deficiency
30000 IU Per Week Vitamin D Treatment in PCOS Patients
This is a human, II/b phase, multicentre, randomised, double blind, placebo-controlled study to assess the safety and the efficacy of a weekly administered dose of 30,000 IU vitamin D (colecalciferol) in deficient patients…
- Trial name
- NCT04840238
- Testing
- Cholecalciferol
- Where
- 8 sites in Hungary
- Volunteers
- 115 people
- Sponsor
- Semmelweis University
Depression, Chronic Liver Disease
Vitamin D Improves Depression in Liver Patients
This study evaluates the efficacy of vitamin D replacement therapy in reducing depressive symptoms in patients with chronic liver disease and vitamin D deficiency.
- Trial name
- CLDVitD (NCT02359266)
- Testing
- Vitamin D
- Where
- Germany
- Volunteers
- 111 people
- Sponsor
- Universität des Saarlandes
Anemia, Hemodialysis Complication
Cholecalciferol Supplementation in Hemodialysis Patients
This is prospective single-blind randomized study, in Ain Shams University hospital) in Egypt, to assess the impact of Cholecalciferol on Anemia status in regular hemodialysis outpatients
- Conditions
- Anemia, Hemodialysis Complication, Vitamin D Deficiency
- Trial name
- NCT05922696
- Testing
- Cholecalciferol
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Ain Shams University
Back Pain, Hypovitaminosis D
Vitamin D Treatment to Patients Suffering From Chronic Pain and Vitamin D Hypovitaminosis
The objective of this study is to check whether vitamin D will lead to a decrease in pain intensity compare to placebo, in patients suffering from chronic pain.
- Trial name
- NCT01023490
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 12 people
- Sponsor
- Tel-Aviv Sourasky Medical Center
Vitamin D Deficiency, Peripheral Neuropathy
Vit D and Peripheral Neuropathy in Taxane Naive Patients
To evaluate the efficacy of vit D supplement in cancer patients which receive taxane drugs with vit D deficiency and complaining from Peripheral neuropathy
- Trial name
- NCT05852496
- Testing
- Vitamin D
- Volunteers
- 60 people
- Sponsor
- Assiut University
Hypovitaminosis D
Vitamin D Status in Lower Extremity Joint Replacement Surgery Patients
In the United States, ~1 million elective hip or knee replacement surgeries are performed annually. With estimated surgical site infection (SSI) rates as high as 2.5%, this represents ~25,000 patients at risk of potentially…
- Trial name
- NCT01858051
- Testing
- Cholecalciferol
- Where
- United States
- Sponsor
- Massachusetts General Hospital
Morbid Obesity, Vitamin D Deficiency
Effect of a Monthly High Dose of Vitamin D3 on Bariatric Surgery Patients
Bariatric surgery patients tend to have malabsorption of many micronutrients such as B12, Iron and vitamin D postoperative. So in this study, a monthly high dose of vitamin D3 is giving to patients with their routine supplements…
- Trial name
- NCT02477956
- Testing
- vitamin D3 (Replesta), vitamin D
- Where
- United States
- Volunteers
- 31 people
- Sponsor
- Texas Tech University