Clinical trials: Vitamin D
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
Anterior Cruciate Ligament Injuries, Quadriceps Muscle Atrophy
Vitamin D to Improve Quadricep Muscle Strength
Quadriceps muscle strength is one of the key determinants for patients to fulfill the Return-to-Play (RTP) criteria after an anterior cruciate ligament reconstruction (ACLR), in which the muscle size is directly linked to muscle…
- Conditions
- Anterior Cruciate Ligament Injuries, Quadriceps Muscle Atrophy, Anterior Cruciate Ligament Rupture, Anterior Cruciate Ligament Tear
- Trial name
- NCT05174611
- Testing
- Vitamin D3
- Where
- Hong Kong
- Volunteers
- 60 people
- Sponsor
- Chinese University of Hong Kong
Panic Disorder
α-N-acetylgalactosaminidase Levels in Panic Disorder
This prospective observational cohort study investigated serum α-N-acetylgalactosaminidase levels in drug-naïve patients with Panic Disorder (PD) at baseline and after six weeks of follow-up and compared them with healthy…
- Trial name
- NCT07424911
- Testing
- No intervention was assigned as part of the research protocol.
- Where
- Turkey (Türkiye)
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Elazığ Mental Health and Diseases Hospital
Cholestatic Liver Disease, Chronic Liver Disease (CLD)
Vitamin D2 vs Vitamin D2 Plus Calcitriol in Cholestatic Children With Vitamin D Deficiency
The goal of this clinical trial is to learn whether adding calcitriol to vitamin D2 can improve vitamin D deficiency in children with cholestasis and chronic liver disease.
- Conditions
- Cholestatic Liver Disease, Chronic Liver Disease (CLD), Vitamin D Deficiency, Children
- Trial name
- VITD-CHOL (NCT07670611)
- Testing
- Vitamin D2, Calcitriol
- Where
- Thailand
- Volunteers
- 54 people
- Sponsor
- Chulalongkorn University
Chronic Kidney Diseases, Osteodystrophy
Effect of Allopurinol on Markers of Mineral and Bone Metabolism
Hyperuricemia is a common condition in patients with chronic kidney disease (CKD) in the glomerular filtration rate. Recently, it has been suggested that uric acid is related to a mineral and bone disease of CKD (CKD-MBD) since…
- Conditions
- Chronic Kidney Diseases, Osteodystrophy, Uric Acid Concentration, Serum, Quantitative Trait Locus 7
- Trial name
- NCT05601271
- Testing
- Allopurinol
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- University of Sao Paulo General Hospital
Ulcerative Colitis, Crohn's Disease
Multimodal Approach in IBD Patients
The investigators intend to assess the role of several biomarkers in the prediction of relapse in IBD. Clinical, laboratory and endoscopic data will be gathered and a predictive score will be derived in order to assess the…
- Conditions
- Ulcerative Colitis, Crohn's Disease, Nonalcoholic Fatty Liver Disease (NAFLD), Vitamin D Deficiency
- Trial name
- MAID (NCT01705522)
- Where
- Romania
- Volunteers
- 50 people
- Sponsor
- Clinical Hospital Colentina
Bed Sores
Evaluating the Impact of Vitamin D Supplementation on Healing Bed Sores in ICU.
To study the value of vitamin D supplementation on healing bed sores in ICU patients.
- Trial name
- NCT07813975
- Testing
- Enteral Vit-D 3 (cholecalciferol)
- Where
- Egypt
- Volunteers
- 50 people
- Sponsor
- Maha Salah
Type 2 Diabetes
The Effect of Vitamin D Supplementation on Glucose Metabolism in Non-Diabetic African American Adults
Type 2 diabetes is more common among African Americans than Caucasians. African Americans are also at a higher risk for lower levels of vitamin D compared to other ethnic groups.
- Trial name
- AVIS (NCT01141192)
- Testing
- vitamin D3, cholecalciferol, Inactive comparator
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- Augusta University
Osteoporosis, Secondary Hyperparathyroidism
Calcium and Vitamin D Malnutrition in Elderly Women
This study is designed to test whether calcium supplementation alone or calcium plus vitamin D reduces the incidence of fractures, reduces high parathyroid secretory activity, and halts bone loss in a population-based sample of…
- Trial name
- NCT00352170
- Testing
- calcium supplementation, calcium and vitamin D3 supplementation
- Volunteers
- 1,180 people, healthy volunteers welcome
- Sponsor
- Creighton University
Stable COPD Patients
Effect of Vitamin D3 on Lung Function and Exercise Tolerance in COPD Patients
Background: Chronic Obstructive Pulmonary Disease (COPD) is a major cause of morbidity and mortality throughout the world which is a preventable as well as treatable disease.
- Trial name
- NCT03781895
- Testing
- Cholecalciferol
- Where
- Bangladesh
- Volunteers
- 48 people
- Sponsor
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
Primary Hypercholesterolemia
Efficacy Study of Vitamin D and Statins to Treat Hypercholesterolemia
The investigators planned to research the effect of vitamin D supplementation as an adjuvant therapy for patients with hypercholesterolemia.
- Trial name
- NCT02009787
- Testing
- vitamin D3 tablets
- Where
- China
- Volunteers
- 56 people
- Sponsor
- Shi Yang
Recurrent Pityriasis Versicolor
Vitamin D Level in Recurrent PV
Serum Samples will be taken from patients with recurrent Pityriasis Versicolor for the evaluation of vitamin D level.
- Trial name
- NCT05067699
- Testing
- Human 25-Hydroxyvitamin D3 (HVD3) ELISA Kit (96 well)
- Where
- Egypt
- Volunteers
- 200 people
- Sponsor
- Kasr El Aini Hospital
Systemic Inflammatory Response Syndrome, Sepsis
Impact of Vitamin D Supplementation on Hepcidin Levels and Transfusion Requirements in Surgical and Septic Patients
Acute inflammation induced by surgery and sepsis is complicated by the development of iron-restricted anemia due to the up-regulation of hepcidin.
- Conditions
- Systemic Inflammatory Response Syndrome, Sepsis, Surgical Injuries
- Trial name
- DEHEPTRA (NCT03001687)
- Testing
- enteral supplementation with vitamin D, blood collection 3mL
- Where
- Romania
- Volunteers
- 40 people
- Sponsor
- Iuliu Hatieganu University of Medicine and Pharmacy
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
Vitamin D Deficiency
Study Vitamin D in Healthy Individuals
To obtain sufficient specimens and correlating clinical data from a well-controlled prospective clinical trial collecting specimens from healthy subjects t on vitamin D assays, and to establish a collection of specimens that will…
- Trial name
- NCT02250625
- Where
- United States
- Volunteers
- 482 people, healthy volunteers welcome
- Sponsor
- Fujirebio Diagnostics, Inc.
Major Depression, Vitamin D Deficiency
Effects of Vitamin D Supplementation on Depression and Inflammatory Markers
The current study is designed as a prospective partially randomized patient preference (PRPP) trial and recruit psychiatric outpatients or inpatients.
- Trial name
- NCT04898725
- Testing
- Vitamin D3
- Where
- Taiwan
- Volunteers
- 142 people
- Sponsor
- Mackay Memorial Hospital
Renal Osteodystrophy
Low Magnitude Mechanical Stimuli Effects on Bone Structure in ESRD
The proposed 6 month pilot and feasibility randomized trial will evaluate LMMS as an anabolic stimulus to bone in 30 adults on maintenance hemodialysis.
- Trial name
- NCT00364234
- Testing
- Low magnitude mechanical stimuli
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Benign Paroxysmal Positional Vertigo
Serum Levels of Otolin-1 and Vitamin D in Pre- and Post-treatments of BPPV
BPPV is the most common cause of vertigo. The pathophysiology of BPPV has not been cleared, several studies show that symptoms are caused by the displacement of otoconia from the macula of the utricle into the semicircular…
- Trial name
- NCT05446506
- Where
- Thailand
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Chiang Mai University
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
Vitamin D Deficiency, Sarcopenia
Impact of Vitamin D on 25-hydroxyvitamin D Levels and Physical Function
This one-year study will test the hypothesis that supplementation with vitamin D will improve lower extremity muscle performance in older men and women with vitamin D insufficiency.
- Trial name
- NCT02293187
- Testing
- vitamin D3
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Tufts University
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