Search clinical trials for: Vitamin D Level

Total 17596 results

Ghamra Military Hospital
Al-Azhar University

Completed

Vitamin D Levels in Women With Polycystic Ovary Syndrome

Polycystic Ovary Syndrome

Egypt
Abha International Private Hospital
Mansoura University

Completed

Impact of Vitamin D on Acute Ischemic Stroke Prognosis (IVASTO)

Ischemic Stroke

Egypt, Switzerland
Children's Hospital of Fudan University
Minhang Maternal and Children Health Care Hospital

Completed

Maternal Key Nutritional Factors and Offspring's Atopic Dermatitis (MKNFOAD) (MKNFOAD)

Atopic Dermatitis

China
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 Mexicano del Seguro Social

Completed

Vitamin D Deficit in Women With Uterine Fibroids

Vitamin D Deficiency | Leiomyoma | Fibroid Uterus

Mexico
University Women's Hospital Tübingen

Unknown

Plasma Concentrations of Calcium, Phosphate, FGF23, Klotho, 25 (OH) D3 and 1,25 (OH) 2D3 From Patients Who Wants to Have Children

Infertility, Female

Germany
Khon Kaen University

Not yet recruiting

Association of Vitamin D Level and Its Receptor With Endometriosis

Endometriosis

Thailand
Assiut University

Unknown

Role of Vitamin D in Androgenetic Alopecia

Alopecia, Androgenetic
University of Sao Paulo
Fundação de Amparo à Pesquisa do Estado de São Paulo

Completed

Evaluation of the Association Between Osteoporosis and Postural Balance in Postmenopausal Women

Postural Balance
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
Jordan University of Science and Technology

Completed

Prevalence of Vitamin D Deficiency in Pregnant Women and Their Fetus in North Jordan

Vitamin D Deficiency

Jordan
Assiut University

Active, not recruiting

Prognostic Value of Vitamin D Levels in Egyptian Females With Breast Cancer

Vitamin D Deficiency

Egypt
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
Odense University Hospital
Pfizer; University of Southern Denmark; Region of Southern Denmark; Odense Patient... and other collaborators

Completed

Vitamin D and Cardiovascular Events in Rheumatoid Arthritis

Cardiovascular Disease | Rheumatoid Arthritis
Bursa City Hospital

Unknown

Do Vitamin D Levels Really Correlated With Disease Severity in COVID-19 Patients? (COVIDVIT)

COVID

Turkey
Kanuni Sultan Suleyman Training and Research Hospital

Completed

Comparison of Maternal and Neonatal Vitamin D Levels in Term Neonates With and Without Early Onset Sepsis

Vitamin D Deficiency

Turkey
Assiut University

Unknown

Serum and Semen Vitamin D Level With Semen Parameters

Vitamin D Deficiency

Egypt
Dr. S R Thanthulage

Terminated

Vitamin D Levels In Patients Who Has Normal to Grade 2 Knee Arthroscopy Changes

Knee Pain

United Kingdom
Hillel Yaffe Medical Center

Unknown

The Impact of Vitamin D Deficiency on Hypocalcaemia Following Total Thyroidectomy

Vitamin D Deficiency | Hypocalcemia
Cumhuriyet University

Recruiting

Vitamin D Level and Pain Type in Coccygodynia

Vitamin D Deficiency | Neuropathic Pain | Nociceptive Pain | Coccyx Disorder

Turkey
Mansoura University

Completed

Serum Levels of Vitamin D and IL8 in Patients With Periodontitis

Periodontal Diseases

Egypt
Kanuni Sultan Suleyman Training and Research Hospital
Ayşegül Bestel; İbrahim Polat; Merve Aldıkaçtıoğlu Talmaç

Completed

Evaluation of the Relationship Between Zinc Vitamin D and b12 Levels in the Covid-19 Positive Pregnant Women

Vitamin D Deficiency | COVID | Zinc Deficiency

Turkey
National Cancer Institute, Naples
Unity Health Toronto; University of Catania

Active, not recruiting

Diet, Exercise and Vitamin D in Breast Cancer Recurrence (DEDiCa)

Breast Cancer

Italy
Ain Shams University

Recruiting

Vitamin D and Serum Calcium Level Insufficiency and Early Dental Implant Failure

Vitamin D Deficiency | Dental Implant Failure Nos

Egypt
Abant Izzet Baysal University

Completed

Electrophysiological Findings in Fibromyalgia Patients

Fibromyalgia

Turkey
Ain Shams University

Completed

Correlation Between Vitamin D Serum Level and Early Implant Failure (EDIF)

Endosseous Dental Implant Failure

Egypt
Azienda Ospedaliera Specializzata in Gastroenterologia...

Unknown

Vitamine d Dosage and Constipation

Vitamine d Dosage in Slow Transit Time Constipation

Italy
Ain Shams University

Not yet recruiting

Correlation Between Serum Vitamin D3 and Incidence of Uterine Leiomyoma

Vitamin D Deficiency | Leiomyoma
The Cleveland Clinic

Completed

Vitamin D Replacement in Nonalcoholic Fatty Liver Disease

Nonalcoholic Fatty Liver

United States
Centre Hospitalier Departemental Vendee

Completed

Monocentric Randomized Study, Assessing the Interests of the Determination of Vitamin D in Prison Population. (Vitamine D)

Male Prisoner

France
Lv Yingjuan

Completed

Associations of Vitamin D Deficiency and Vitamin D Receptor Polymorphisms With the Risk of Primary Open-angle Glaucoma

Vitamin D Deficiency | Primary Open- Angle Glaucoma

China
Assiut University

Unknown

Vitamin D Level and Risk of Infections in Cirrhotic Patients

Liver Cirrhosis | Vitamin D Deficiency | Infection

Egypt
Klinikum Emden

Completed

Vitamine D in Post-COVID Patients (VD-PCS)

Post COVID

Germany
Sohag University

Completed

Assessment of Serum Levels of Vitamin D, Vitamin B12 and Folic Acid Among Patients With Lifelong Premature Ejaculation and Non-responding to Dapoxetine Treatment. (PE)

Vitamin D, Vitamin B12 and Folic Acid Among Patients With Premature Ejaculation

Egypt
University of Trieste

Completed

Hypovitaminosis D and "Metabolic" Inflammatory Status in Patients With Obesity (ViDO)

Obesity | Hypovitaminosis D

Italy
Mansoura University

Completed

Impact of Vitamin D Level and Supplement on SLE Patients During COVID-19 Pandemic

Covid19

Egypt
Kathy Prelack, PhD, RD

Terminated

Bone Mineral Density, Body Composition and Growth Following Severe Burn Injury

Malnutrition | Growth | Burn

United States
Fundación Pública Andaluza para la gestión de la...

Completed

Immunomodulatory Effect of Vitamin D in Allogenic Post-transplant (Alovita-1)

Hematopoietic Stem Cell Transplantation

Spain
Instituto Nacional de Enfermedades Respiratorias

Unknown

Effect of Vitamin D as Adjunctive Therapy in Patients With Pulmonary Evolution Tuberculosis (VitaminD)

Pulmonary Tuberculosis

Mexico
Pfizer

Terminated

Randomized Study Of Exercise And Vitamin D In Frail Elderly Subjects

Elderly, Frail

United States
Umeå University
Region Skane

Completed

Comparing Different Amounts of Vitamin D Supplementation to Preschool Children Living in Northern and Southern Sweden (Dvisum)

Vitamin D Deficiency

Sweden
University of Aarhus

Not yet recruiting

Next-generation Effects of Vitamin D Supplementation in Pregnancy

Immune System Diseases | Growth | Child Development | Vitamin D Supplementation
Maíra F Pessoa

Unknown

Evaluation of Cardiac Variability After a Vitamine D Protocol and Whole Body Vibration

Aging | Copd

Brazil
National Institute of Nutrition and Seafood Research...
Haukeland University Hospital

Completed

Dietary Intake of Salmon and Bone Health

Osteoporosis

Norway
Gazi University

Completed

Effects of Smoking and Vitamin D3 on the Levels of Human Cathelicidin Peptide LL-37

Periodontitis
University of Tromso
Public Dental Service Competence Center of Northern Norway

Not yet recruiting

Randomized Clinical Trial (RCT) on the Effect of Vitamin D Supplement Prior to Non-surgical Periodontal Therapy: a Feasibility Trial

Inflammation | Periodontitis | Periodontal Diseases | Vitamin D | Periodontal Inflammation | Inflammation Gum

Norway
National Nutrition and Food Technology Institute

Completed

Vitamin D Supplementation in Physical Performance

Healthy | Athletes

Iran, Islamic Republic of
Shanghai General Hospital, Shanghai Jiao Tong University...

Unknown

The Impact of Vitamin D Supplementation on Glucose Metabolism in Chinese Women With Former Gestational Diabetes Mellitus

Gestational Diabetes Mellitus

China
Hadassah Medical Organization
Hebrew University of Jerusalem

Completed

Nutritional Deficiencies Preventive Treatment Prior to Laparoscopic Sleeve Gastrectomy (LSG)

Vitamin D Deficiency | Disorder of Bone Density and Structure, Unspecified

Israel
Christian Pagnoux

Completed

PRagmatic Analysis of Vitamin D in ANCA-Associated Vasculitis (PRAVDA)

Microscopic Polyangiitis | Granulomatosis With Polyangiitis | Eosinophilic Granulomatosis With Polyangiitis | ANCA-associated Vasculitis

Canada

Search clinical trials for: Vitamin D Level

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Papua New Guinea

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations