Clinical trials: Vitamin D
Colorectal Cancer, Polyps
Vitamin D/Calcium Polyp Prevention Study
Extensive experimental and observational data suggest that intake of calcium and of vitamin D exert protective effects on colorectal neoplasia.
- Conditions
- Colorectal Cancer, Polyps, Adenomas
- Trial name
- NCT00153816
- Testing
- Calcium Carbonate, Vitamin D3
- Where
- 11 sites in United States, Puerto Rico
- Volunteers
- 2,813 people
- Sponsor
- Dartmouth-Hitchcock Medical Center
Wheezing, Allergy
Wheezing in Black Preterm Infants: Impact of Vitamin D Supplementation Strategy
The goal of this study is to identify a vitamin D supplementation strategy that best promotes the lung, immune, and overall health of black infants born preterm (28-36 weeks gestational age).
- Trial name
- D-Wheeze (NCT01601847)
- Testing
- Cholecalciferol
- Where
- 5 sites in United States
- Volunteers
- 300 people
- Sponsor
- Case Western Reserve University
Healthy Participants
Influenza Virus Vaccine Plus Vitamin A and D Supplements for Prevention of Respiratory Virus Infections in Children
Children are particularly vulnerable to respiratory virus infections, especially influenza. Vitamin A \& D deficiencies are associated with vulnerability to infectious diseases of the respiratory tract.
- Trial name
- NCT02649192
- Testing
- Influenza virus vaccine, Vitamins A and D
- Where
- United States
- Volunteers
- 87 people, healthy volunteers welcome
- Sponsor
- St. Jude Children's Research Hospital
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
Vitamin D Deficiency
Vitamin D Supplementation Requirement in Obese Subjects
Vitamin D deficiency is common in obese patients. Most of vitamin D supplementation studies were done with non-obese subjects. This study looks at vitamin D supplementation requirements in obese patients as compared to non-obese…
- Trial name
- NCT00996866
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Winthrop University Hospital
Breast Cancer
Vitamin D Supplementation in Women With DCIS and/or LCIS
The purpose of this study is to determine the safety and usefulness of oral Vitamin D supplementation in subjects with in situ carcinoma.
- Trial name
- NCT02936999
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 8 people
- Sponsor
- Inova Health Care Services
Obesity, Vitamin D Deficiency
Vitamin D and Vascular Health in Children
In this study, we will test the central hypothesis that enhancement of vitamin D status in obese and overweight children will improve their vascular health and their cardiovascular disease (CVD) and metabolic syndrome risk…
- Trial name
- NCT01797302
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 225 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
Verruca Viral
A Comparative Study to Assess Efficacy of Intralesional MMR Vaccine and Intralesional Vitamin D3 in Treatment of Warts
Common warts are papulonodular epidermal lesions caused by human papillomavirus (HPV) usually by the strains 1, 2, 4, 27 or 57. Cutaneous warts occur in 7% to 10% of the general population, with a maximum incidence between 12 and…
- Trial name
- MMR (NCT04428359)
- Testing
- Measles-Mumps-Rubella Vaccine, Vit D
- Where
- Nepal
- Volunteers
- 66 people
- Sponsor
- B.P. Koirala Institute of Health Sciences
Diabetes Mellitus, Type 1
GAD-Alum (Diamyd) Administered Into Lymph Nodes in Combination With Vitamin D in Type 1 Diabetes (DIAGNODE-1)
The objectives of the main study is to: Evaluate the safety of giving GAD-Alum (Glutamic acid decarboxylase) (Diamyd) directly into lymph glands in combination with an oral vitamin D regimen Evaluate how the above mentioned…
- Trial name
- DIAGNODE (NCT02352974)
- Testing
- GAD-Alum, Vitamin D
- Where
- Sweden
- Volunteers
- 12 people
- Sponsor
- Johnny Ludvigsson
Warts
Intralesional Vitamin D Injection for Treatment of Common Warts
Researchers are trying to find out if injecting Vitamin D into a wart is an effective treatment.
- Trial name
- NCT04278573
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 77 people
- Sponsor
- Stephen P. Merry
Breast Cancer, Lung Cancer
Zoledronate, Vitamin D, and Calcium With or Without Strontium 89 or Samarium 153 in Preventing or Delaying Bone Problems in Patients With Bone Metastases From Prostate Cancer, Lung Cancer, or Breast Cancer
RATIONALE: Zoledronate, vitamin D and calcium may prevent or delay bone pain and other symptoms caused by bone metastases. It is not yet known whether giving zoledronate together with vitamin D and calcium is more effective with…
- Conditions
- Breast Cancer, Lung Cancer, Metastatic Cancer, Pain
- Trial name
- NCT00365105
- Testing
- Calcium, Vitamin D, zoledronic acid
- Where
- 147 sites in United States
- Volunteers
- 261 people
- Sponsor
- Radiation Therapy Oncology Group
Risperidone-induced Hyperprolactinemia
Calcium and Vitamin D to Optimize Bone Mass in Boys With Risperidone-induced Hyperprolactinemia
The purpose of this study is to determine whether calcium and vitamin D supplementation, over a nine-month period, optimizes bone mineralization in boys with risperidone-induced hyperprolactinemia.
- Trial name
- NCT00799383
- Testing
- Calcium and Vitamin D
- Where
- United States
- Volunteers
- 47 people
- Sponsor
- Chadi A. Calarge
Cardiovascular Disease, Chronic Kidney Disease
Vascular Risk After Kidney Transplantation
Hypothesis: Nontraditional risk factors, such as inflammation, vitamin D deficiency, elevated PTH, insulin resistance, homocysteine, or uric acid, contribute to cardiovascular disease progression after kidney transplant.
- Conditions
- Cardiovascular Disease, Chronic Kidney Disease, Diabetes, Vitamin D Deficiency
- Trial name
- NCT00374595
- Where
- United States
- Volunteers
- 338 people
- Sponsor
- University of Nebraska
Obesity, Vitamin D Deficiency
Vitamin D Supplementation in Psychiatric Illnesses
Children and adolescents with psychiatric illnesses who are treated with medications called second generation antipsychotic agents (SGA) often gain excessive weight during their treatment with these medications.
- Conditions
- Obesity, Vitamin D Deficiency, Psychosis, Schizophrenia
- Trial name
- VDSS (NCT01004354)
- Testing
- Ergocalciferols
- Where
- United States
- Volunteers
- 12 people
- Sponsor
- University of Massachusetts, Worcester
Chronic Kidney Disease, Endothelial Dysfunction
Study of Protective Effects of Paricalcitol on Inner Layer of Vessels and Its Protective Effect on Inflammation
The study is about possible protective effects of paricalcitol (Zemplar) upon inflammation, blood pressure and kidney function. Kidney Inflammation occurs when white blood cells become abnormally stimulated and accumulate in the…
- Conditions
- Chronic Kidney Disease, Endothelial Dysfunction, Inflammation, Hypertension
- Trial name
- NCT00428246
- Testing
- paricalcitol
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Indiana University
Inflammatory Bowel Disease
Vitamin D Supplementation in Crohn's Patients
The purpose of this study is to determine the effect of vitamin D supplementation in Crohn's disease patients. Patients will be evaluated for increases in circulating vitamin D levels and effects on health benefits including…
- Trial name
- CTSA (NCT00742781)
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 21 people
- Sponsor
- Penn State University
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.
COVID-19
Randomized Proof-of-Concept Trial to Evaluate the Safety and Explore the Effectiveness of Resveratrol, a Plant Polyphenol, for COVID-19
Resveratrol is a plant polyphenol (that is sold commercially as a supplement) that might help fight coronavirus as well as help protect the body from the effects of disease (COVID-19) caused by the infection.
- Trial name
- NCT04400890
- Testing
- Resveratrol, Vitamin D3
- Where
- United States
- Volunteers
- 105 people
- Sponsor
- Marvin McCreary, MD
Healthy
Defining Vitamin D Insufficiency in School Age Children: A Randomized Placebo Controlled Trial of Vitamin D3
The study objective is to characterize the threshold levels of serum 25-hydroxyvitamin D for the definition of vitamin D insufficiency in 8-14 year old African American and Caucasian children.
- Trial name
- Vitamin D RCT (NCT00732758)
- Testing
- Vitamin D3 1000 IU
- Where
- United States
- Volunteers
- 157 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
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