Search clinical trials for: 25-hydroxyvitamin D- 25(OH) D

Total 497478 results

University of Nebraska

Terminated

Effect of Vitamin D Supplementation on Balance in CKD

Renal Insufficiency, Chronic | Kidney Failure, Chronic

United States
David Travis Thomas

Completed

Vitamin D and Muscle Metabolic Function

Healthy

United States
University of Alexandria

Completed

The Effect of Vitamin D Supplementation on Disease Activity Markers in Systemic Lupus Erythematosus (SLE)

Systemic Lupus Erythematosus

Egypt
Clalit Health Services

Completed

Vitamin D Status in Males in Jerusalem Area and Its Correlation to Parathyroid Hormone (PTH) Level and Bone Mineral Density

Vitamin D Deficiency | Secondary Hyperparathyroidism | Osteomalacia

Israel
Hospices Civils de Lyon

Completed

Vitamin D Status in Children With Sickle Cell Disease Living in Lyon, France (EVADDREP)

Vitamin D Deficiency | Sickle Cell Disease

France
Sheffield Teaching Hospitals NHS Foundation Trust
National Osteoporosis Society

Completed

Change in Free 25(OH)D After High Dose in Vitamin D Deficient Postmenopausal Women

Vitamin D Deficiency | Osteoporosis

United Kingdom
Cornell University

Active, not recruiting

Bioavailability of Vitamin D(25(OH)D) and Omega-3 Fatty Acid (DHA) Enhanced Chicken

Nutrition, Healthy

United States
Hospices Civils de Lyon

Recruiting

Burosumab and 1-25 (OH) Vitamin D on Human Osteoblasts (HYPO-BLASTES)

Craniosynostoses

France
Hospices Civils de Lyon

Completed

Burosumab and 1-25 (OH) Vitamin D on Human Osteoclasts (HYPO-CLASTE)

Hypophosphatemic Rickets

France
The Cleveland Clinic
Brentwood Foundation

Completed

Vitamin D Raising and Maintaining Blood Serum 25(OH)D3 Levels (VitD)

Vitamin D Deficiency
Louisiana State University Health Sciences Center...

Completed

Optimization of Blood Levels of 25(OH)-Vitamin D in African Americans

Vitamin D Deficiency

United States
University Hospital, Clermont-Ferrand
Centre de Recherche en Nutrition Humaine Rhone-Alpe; Centre de Recherche en... and other collaborators

Unknown

Sleep Apnea Syndrome and Vitamin D

Obstructive Sleep Apnea-hypopnea Syndrome

France
Margitta Worm

Completed

Immunologic Action of a Single Dose Cholecalciferol (ViDImmun)

Vitamin D Deficiency

Germany
Intermountain Health Care, Inc.

Completed

Acute Effect of Systemic Stress on Measured Blood Concentrations of 25 (OH) Vitamin D (ASSESS-D)

Cardiovascular Disease | Vitamin D Deficiency

United States
Nantes University Hospital

Withdrawn

Impact of Vitamine D Status on in Vitro Fertilization Outcomes (DFIV)

Infertility
University of California, San Francisco

Completed

Optimizing Vitamin D in the Elderly

Deficiency of Vitamin D3

United States
National Institute of Allergy and Infectious Diseases...
Autoimmunity Centers of Excellence

Terminated

Vitamin D3 Treatment in Pediatric Systemic Lupus Erythematosus

Systemic Lupus Erythematosus

United States
Dr. Sami Ulus Children's Hospital

Completed

Cord Blood 25(oh)-Vitamin D Level in Preterm Infants and Associated Morbidities

Respiratory Distress Syndrome

Turkey
Kanuni Sultan Suleyman Training and Research Hospital

Completed

Vitamin D Levels And Myoma Uteri

Vitamin D Deficiency | Myoma;Uterus | Polycystic Ovary

Turkey
King Faisal Specialist Hospital & Research Center

Completed

Is Vitamin D2 Treatment-associated Decrease in 25(OH)D3 Level a Reciprocal Phenomena?

Vitamin D Deficiency | 25-Hydroxyvitamin D Concentration

Saudi Arabia
University of California, Los Angeles
National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)

Completed

Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function

Vitamin D Deficiency

United States
Kantonsspital Baselland Bruderholz

Completed

Effect of Vitamin D Supplementation on Blood Pressure and HbA1c Levels in Patients With T2D

Diabetes Mellitus Type 2

Switzerland
University Hospital, Lille

Withdrawn

Impact of Zinc and Vitamin D3 Supplementation on the Survival of Aged Patients Infected With COVID-19 (ZnD3-CoVici)

SARS-CoV 2
Creighton University
Procter and Gamble

Completed

The Pharmacokinetics of a Single Large Dose of Vitamin D3 (Stoss)

Vitamin D Deficiency

United States
University of Reading

Unknown

Effect of vitaminD3 or 25(OH)D3 Fortified Dairy on Vitmain D Status and CVD Risk Markers

Cardiovascular Diseases | Hypovitaminosis D

United Kingdom
University of Toronto
Ryerson University; George Brown College

Completed

Mozzarella Cheese Vitamin D and Bioavailability

Change in Serum 25 Hydroxyvitamin D Levels

Canada
CHU de Quebec-Universite Laval
Khlôros Technology; Anne-Sophie Morisset

Completed

Comparison of Changes in Serum 25(OH)D Concentrations Following Vitamin D Supplementation With Chewable Tablets Versus Pills

Vitamin D Deficiency

Canada
University of the Punjab

Not yet recruiting

Effect of Vitamin D Supplementation on Allostatic Load and Chronic Stress Along Line of Control in Azad Jammu Kashmir

Mental Health Issue

Pakistan
University of Ulster
Queen Margaret University, Nutrition and Biological Sciences, Musselburgh... and other collaborators

Recruiting

Vitamin D in School Children (DVinCHI)

Musculoskeletal Diseases | Vitamin D Deficiency | Cognitive Delay, Mild

United Kingdom
Aimin Zhao

Recruiting

The Cohort Study of the Correlation Between Serum 25(OH)D Level and Pregnancy Outcome

Vitamin D Deficiency | Pregnancy Related | Recurrent Miscarriage

China
Fatih Sultan Mehmet Training and Research Hospital

Completed

The Relationship Between Vitamin D Levels, Inflammatory Parameters and Disease Severity of COVID-19 Infection

Covid19 | Vitamin D Deficiency

Turkey
University of Minnesota

Completed

Vitamin D Levels Following Topical Application of Vitamin D Ointment (VITD-001)

Vitamin D Deficiency

United States
Research Institute of Epidemiology, Microbiology...

Active, not recruiting

Serum 25(OH) Vitamin D and Total Serum Immunoglobulin E Levels in Patients With Pityriasis Alba

Pityriasis Alba

Uzbekistan
Rajavithi Hospital

Completed

Pregnancy Outcome and Vitamin D Level Among Vitamin D Supplementation During Pregnancy

Pregnancy Outcome Among Vitamin D Supplementation During Pregnancy

Thailand
Kırıkkale University

Completed

Diabetes Mellitus and Periodontitis and Vitamin D Supplementation

Diabetes Mellitus Type 2 With Periodontal Disease

Turkey
Instituto Nacional de Salud Publica, Mexico
DSM Nutritional Products, Inc.

Completed

Vitamin D3-enhanced Eggs in Preschool Children (VD3-egg)

Vitamin D Deficiency | 25-Hydroxyvitamin D3 Deficiency, Selective

Mexico
DSM Nutritional Products, Inc.

Completed

Dose Finding Study in Physically Frail Elderly to Measure 25(OH) Vitamin D Levels After Supplementation With Hy.D Calcifediol 25 SD/S and Vitamin D3 (D-DOSE)

Frail Elderly | Pre-frail Elderly

Netherlands
Creighton University

Withdrawn

The Variability of 25-hydroxyvitamin D Response From Crystalline 25-hydroxyvitamin D3

Vitamin D Deficiency

United States
Pauls Stradins Clinical University Hospital

Completed

The Effects of a Sublingual Sprayable Microemulsion of Vitamin D on Inflammatory Markers in COVID-19 Patients

COVID-19 | Vitamin D Deficiency

Latvia
University Hospital, Basel, Switzerland

Completed

Influence of Kidney Performance and Magnesium on Formation of (OH)2-vitamin D3

Hydroxylase Deficiency
Universitas Sumatera Utara

Completed

Soy, Catfish, Anchovy, and Rice Supplementation Increases 25(OH)D Serum Levels in Tuberculosis Patients With Complications

Tuberculosis

Indonesia
University of Zurich

Completed

Serum 25-OH Vitamin D Modulation by Sunbed Use According to EU Guideline EN 60335-2-27

Skin Toxicity

Switzerland
PepsiCo Global R&D

Completed

Physiological and Dietary Characteristics of Boys and Girls High School Basketball Players

Bone Health

United States
King Faisal Specialist Hospital & Research Center

Withdrawn

Magnitude of Changes in 25 OH Vitamin D3 Levels After Vitamin D3 Supplementation

Vitamin D Deficiency

Saudi Arabia
Fatih Sultan Mehmet Training and Research Hospital

Active, not recruiting

Relationship Between Vitamin D and Vitamin B12 Levels and Neuropathic Pain in Lipedema

Vitamin D Deficiency | Lipedema | B12 Deficiency Vitamin

Turkey
Instituto Nacional de Salud Publica, Mexico
DSM Nutritional Products, Inc.

Completed

Effect of Vitamin D3 Supplementation in Children From 12 to 30 Months of Age.

Vitamin D Deficiency | 25-Hydroxyvitamin D3 Deficiency, Selective

Mexico
Creighton University

Completed

Vitamin D Binding Protein (Gc) Allele Variation Effects Response to Vitamin D Treatment (Gc)

Vitamin D Status

United States
Lichen Yang

Completed

Vitamin D of Chinese Children and Adolescents

Vitamin D Deficiency

China
Semmelweis University

Terminated

The Effect of 25-OH-Vitamin-D3 Substitution in Patients With Malignant and Immune-hematologic Diseases (D-HEM)

Chronic Lymphoid Leukemia

Hungary
Sahlgrenska University Hospital, Sweden

Completed

Study of Vitamin D3 Supplementation in Patients With Chronic Kidney Disease (VitaD-CKD1)

Vitamin D Deficiency | Insulin Resistance | Chronic Kidney Disease

Sweden

Search clinical trials for: 25-hydroxyvitamin D- 25(OH) D

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