Clinical trials: Cholecalciferol
Healthy
Study Comparing Two Vitamin D Supplements for Infants: Liquid Versus D-Strips
Vitamin D supplementation (400 IU/d) is recommended for all breastfed infants in Canada. Such recommendation is grounded in the fact that the prevalence of rickets in Canada is higher than desirable, likely due to low…
- Trial name
- NCT00846677
- Testing
- Vitamin D, cholecalciferol
- Where
- Canada
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- McGill University
Hypovitaminosis D
Vitamin D Supplementation in Younger Women
That on average it will require a vitamin D dose of 1700IU/day to increase the serum 25hydroxyvitamin D level from 20 to 30ng/ml in young Caucasian women and a dose of 1860 to 2480 IU/day in African American
- Trial name
- VITADAS (NCT00662844)
- Testing
- vitamin D3
- Volunteers
- 198 people, healthy volunteers welcome
- Sponsor
- Creighton University
Muscle Function, Muscle Soreness
Vitamin D2, Muscle Damage, NASCAR Pitcrew
Hypothesis: Six weeks of supplementation with vitamin D (4000 IU/day) using Dole's Vitamin D Portobello Mushroom Powder will increase winter serum vitamin D levels, and improve muscle function and strength, and innate immunity…
- Conditions
- Muscle Function, Muscle Soreness, Vitamin D Status
- Trial name
- NCT01825616
- Testing
- Vitamin D2 mushroom powder
- Where
- 3 sites in United States
- Volunteers
- 33 people, healthy volunteers welcome
- Sponsor
- Appalachian State University
Colon Cancer
NIMA-Colon Cancer Study
The goal of this study is to evaluate the effects of nutritional supplementation and physical activity interventions on recovery, muscle strength, nutritional status, inflammation, and metabolic health in adults with colon cancer…
- Trial name
- NIMA (NCT07534852)
- Testing
- Standard hypercaloric-hyperproteic nutritional supplementation, HMB-enriched hypercaloric-hyperproteic nutritional supplementation with vitamin D and calcium, Supervised exercise program
- Where
- Spain
- Volunteers
- 120 people
- Sponsor
- Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud
Vitamin D Deficiency, Stem Cell Transplant Complications
A Randomized Phase IV Control Trial of Single High Dose Oral Vitamin D3 in Pediatric Patients Undergoing HSCT
Research has suggested that children with sufficient vitamin D levels undergoing hematopoietic stem cell transplant (HSCT) have improved outcomes, including lower incidences of infection and graft-versus-host disease (GVHD), as…
- Conditions
- Vitamin D Deficiency, Stem Cell Transplant Complications, Pediatric Cancer, Blood Disorder
- Trial name
- NCT03176849
- Testing
- Vitamin D3, Standard Vitamin D3 Supplementation
- Where
- United States
- Volunteers
- 49 people
- Sponsor
- Phoenix Children's Hospital
Systemic Lupus Erythematosus, SLE
Vitamin D3 in Systemic Lupus Erythematosus
The purpose of this study is to explore the impact of vitamin D3 on the expression of alpha interferon (IFN alpha) expression in systemic lupus erythematosus (SLE) patients with vitamin D deficiency.
- Conditions
- Systemic Lupus Erythematosus, SLE, Lupus
- Trial name
- NCT00710021
- Testing
- Vitamin D3
- Where
- 8 sites in United States
- Volunteers
- 57 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Immune Thrombocytopenia
Use of Vitamin D as An Adjuvant Treatment in Children With Chronic Idiopathic Thrombocytopenic Purpura
Immune thrombocytopenia is an autoimmune disease in which platelets are targeted by the host immune system. Platelet depletion occurs when autoantibodies targeting glycoproteins (αIIb-β3 and GPIb) found on the surface of…
- Trial name
- MansouraU (NCT06073925)
- Testing
- VIT D
- Volunteers
- 30 people
- Sponsor
- Mansoura University
Hypovitaminosis D
The Effectiveness of a Weight-dependent Algorithm for Dosing Vitamin D.
Vitamin D is essential for calcium absorption and bone growth, brain development, and immune system function. Vitamin D is produced by the body in response to natural sunlight.
- Trial name
- NCT07876843
- Testing
- Vitamin D3, Calcium, and Vitamin C
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Atlantic Health System
Coronary Calcification, Endstage Renal Disease
Vitamin D and Carboxy PTH Fragments in Coronary Calcification
Arterial calcification within the coronaries and other vessels is greatly accelerated among patients with chronic or end-stage kidney disease.
- Conditions
- Coronary Calcification, Endstage Renal Disease, Parathyroid Hormone
- Trial name
- NCT00502268
- Testing
- Doxercalciferol administration, Doxercalciferol administered by 1-84-7-84
- Where
- United States
- Sponsor
- Southeast Renal Research Institute
Fractures, Osteoporosis
Effectiveness of an Educational Program in the Prevention of Osteoporosis and Fractures
The study will elucidate the effectiveness of an educational program in the prevention of osteoporosis and fractures. A random sample of the female population in Southern Finland (Uusimaa region) within the age group of 60-70…
- Trial name
- NCT00589615
- Testing
- multidisciplinary osteoporosis prevention educational program
- Where
- Finland
- Volunteers
- 2,181 people, healthy volunteers welcome
- Sponsor
- University of Helsinki
Primary Osteoporosis
Vitamin D Status and Multi-Omics Profiles in Primary Osteoporosis
This observational study aims to explore the relationships between vitamin D status and genomic, proteomic, and metabolomic profiles in patients with primary osteoporosis.
- Trial name
- OP-MultiOmics (NCT07296471)
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Dr. Li Chen
Postural Balance
Evaluation of the Association Between Osteoporosis and Postural Balance in Postmenopausal Women
The incidence of osteoporosis has been increasing, as have fractures resulting from falls.
- Trial name
- NCT02771834
- Testing
- Biomechanical analysis, Kiphosis analysis, Vitamin D level
- Volunteers
- 126 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo
Psoriasis
Study of Topical Calcitriol in Children With Psoriasis
OBJECTIVES: I. Determine the therapeutic efficacy and safety of topical calcitriol in children with psoriasis.
- Trial name
- NCT00006275
- Testing
- calcitriol
- Volunteers
- 20 people
- Sponsor
- National Center for Research Resources (NCRR)
Insulin Sensitivity, Flow-mediated Dilation
Vitamin D, Insulin Sensitivity, and Vascular Associations in Adolescents
The overall objectives of this study are to examine the relationships between circulating vitamin D, insulin sensitivity, and multiple indices of vascular function and to examine whether vitamin D deficiency in AA is responsible…
- Conditions
- Insulin Sensitivity, Flow-mediated Dilation, Arterial Stiffness
- Trial name
- DIVA (NCT01041365)
- Where
- United States
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Type 2 Diabetes
the Effect of Vitamin D on the Serum Thioredoxin, TBP-2, Thioredoxin Reductase, Gene Expression of TBP-2 in Patients With Type II Diabetes
The aim of this study is the comparision between the effects of vitamin D or placebo supplementation for 2 months in serum level of thioredoxin, TBP-2 and thioredoxin reductase activity in patients with type 2 diabetes
- Trial name
- NCT01876563
- Testing
- vitamin D
- Where
- 2 sites in Iran
- Volunteers
- 30 people
- Sponsor
- Tehran University of Medical Sciences
Osteoarthritis, Knee
VItamin D Effect on Osteoarthritis Study
Observational evidence suggests that vitamin D deficiency may have a role in the causes of osteoarthritis (OA) and there are biologically plausible mechanisms to explain this.
- Trial name
- VIDEO (NCT01176344)
- Testing
- Vitamin D
- Where
- 2 sites in Australia
- Volunteers
- 413 people
- Sponsor
- Menzies Institute for Medical Research
Psoriasis (PsO), Obesity & Overweight
Effects of Semaglutide on Clinical Outcomes and Metabolic Inflammation in Psoriasis
This study will evaluate the effects of oral semaglutide in combination with topical corticosteroid/calcipotriol on clinical outcomes and metabolic inflammation in patients with plaque psoriasis and overweight/obesity and/or type…
- Conditions
- Psoriasis (PsO), Obesity & Overweight, Diabetes Mellitus - Type 2
- Trial name
- SEMAPSO (NCT07401992)
- Testing
- Semaglutide (Rybelsus®)
- Where
- Mexico
- Volunteers
- 62 people
- Sponsor
- Hospital Universitario Dr. Jose E. Gonzalez
Frailty
FOCUS- Frailty Management Optimization Through EIP AHA Commitments and Utilization of Stakeholders Input
This intervention study is a part of the FOCUS (Frailty Management Optimization Through EIP AHA Commitments and Utilization of Stakeholders Input) project which purpose is to critically reduce the burden of frailty in Europe by…
- Trial name
- FOCUS-WMU (NCT03194412)
- Testing
- Diet /nutritional, Physical activity, Comprehensive therapy
- Where
- Poland
- Volunteers
- 210 people
- Sponsor
- Wroclaw Medical University
Healthy
Vitamin D Deficiency Epidemiological Research in Sichuan, China
Vitamin D insufficiency and deficiency is pandemic in the world.Sichuan Basin has a subtropical monsoon climate with China's lowest sunshine totals.
- Trial name
- NCT01457365
- Where
- China
- Volunteers
- 1,500 people, healthy volunteers welcome
- Sponsor
- West China Hospital
Osteoporosis, Postmenopausal
Effect of Laser Acupuncture on Forearm Bone Mineral Density and Wrist Pain in Osteoporotic Postmenopausal Women
Sixty-eight postmenopausal women diagnosed with osteoporosis aged between 50 and 60 years were randomly allocated to one of two equal sets. The drug treatment group received calcium and vitamin D3 supplement daily for 12 weeks.
- Trial name
- NCT05559619
- Testing
- Calcium carbonate, Vitamin D3, laser acupuncture therapy
- Where
- Egypt
- Volunteers
- 68 people
- Sponsor
- Cairo University
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