Clinical trials: Vitamin Deficiencies
Hypovitaminosis D, Osteoporosis, Postmenopausal
Effect of Vitamin D and Denosumab on Bone Remodelling in Women With Postmenopausal Osteoporosis
Denosumab is a monoclonal antibody against RANKL ligand, which is used as an alternative treatment for osteoporosis in patients who have a poor response to first-line antiresorptive therapy.
- Conditions
- Hypovitaminosis D, Osteoporosis, Postmenopausal, Menopause
- Trial name
- NCT05372224
- Testing
- Cholecalciferol
- Where
- Mexico
- Volunteers
- 55 people
- Sponsor
- Hospital Regional 1o de Octubre
Ovarian Cancer, Breast Cancer
A Study of Serum Folate Levels in Patients Treated With Olaparib
This is a study investigating folate deficiency (lack of folic acid in the blood) in patients who take the drug olaparib to treat their advanced ovarian or breast cancer.
- Conditions
- Ovarian Cancer, Breast Cancer, Folic Acid Deficiency
- Trial name
- NCT04024254
- Testing
- Folic Acid Tablet
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Rush University Medical Center
Vitamin D Deficiency, Sarcopenia
Vitamin D Deficiency and Body Composition in the Patients With Hemophilia
Hemophilia is associated with osteoporosis and increased prevalence of low bone mineral density (BMD). Many clinical risk factors have been reported, such as hemophilic arthropathy, reduced physical activity, decreased sun…
- Conditions
- Vitamin D Deficiency, Sarcopenia, Osteoporosis, Body Composition
- Trial name
- NCT05517070
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Tsung-Ying Li
Vitamin B6 Deficiency
Vitamin B6 Effects for Women Taking Birth Control Pills
Chronically inadequate B6 nutritional status is associated with aberrant one-carbon (1C) metabolism and health. Plasma pyridoxal phosphate (PLP) >30 nmol/L often has been considered to be the cutoff indicative of nutritional…
- Trial name
- NCT01128244
- Testing
- Vitamin B6, Infusion of labeled serine, methionine and leucine
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- University of Florida
Vitamin B-12 Deficiency, Achlorhydria
Cobalamin Absorption From Fortified Food
To determine B12 bioavailability from 14C-B12 fortified bread in healthy subjects and in subjects with proton pump inhibitor induced achlorhydria.
- Trial name
- FL-72 (NCT01399164)
- Testing
- 14C-B12 fortified bread
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
Liver Transplant; Complications, Vitamin D Deficiency
Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period
The study population is patients with liver cirrhosis undergoing liver transplantation; In this study, the sample will be selected from cirrhosis patients undergoing liver transplantation in Taleghani (Tehran), Imam Khomeini…
- Trial name
- NCT05568836
- Testing
- vitamin D supplementation, control
- Volunteers
- 42 people
- Sponsor
- National Nutrition and Food Technology Institute
Diabetic Foot Ulcer, Vitamin D Deficiency
High-Dose Vitamin D3 for Diabetic Foot Ulcer Healing: Randomized Controlled Trial
This randomized, double-blind, placebo-controlled clinical trial aims to evaluate the effectiveness of high-dose vitamin D3 supplementation in improving diabetic foot ulcer (DFU) healing.
- Conditions
- Diabetic Foot Ulcer, Vitamin D Deficiency, Wound Healing Disorder
- Trial name
- DFU (NCT07139964)
- Testing
- Vitamin D3
- Where
- Indonesia
- Volunteers
- 24 people
- Sponsor
- Universitas Sriwijaya
Hypocalcemia
Vitamin D Deficiency and Postoperative Hypocalcemia
Hypocalcemia is a frequent adverse event after thyroidectomy. It is usually related to hypoparathyroidism, but preoperative hypocalcemia, hypomagnesemia or vitamin D deficiency contributes to it.
- Trial name
- NCT01632514
- Testing
- Cholecalciferol
- Where
- Brazil
- Volunteers
- 90 people
- Sponsor
- University of Sao Paulo General Hospital
Vitamin D Deficiency, Leiomyoma
Correlation Between Serum Vitamin D3 and Incidence of Uterine Leiomyoma
The aim of the current study is to evaluate the association between low serum vitamin D level and incidence of uterine leiomyoma in Egyptian women as the research hypothesis that low serum vitamin D is considered a risk factor…
- Trial name
- NCT05151393
- Testing
- Measuring vitamin D3 level
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Acute Respiratory Distress Syndrome, Vitamin D Deficiency
Vitamin D to Improve Outcomes by Leveraging Early Treatment
Vitamin D deficiency is a common, potentially reversible contributor to morbidity and mortality among critically ill patients. We conducted a randomized, double-blind, placebo-controlled, phase 3 trial of early vitamin D3…
- Conditions
- Acute Respiratory Distress Syndrome, Vitamin D Deficiency, Critical Illness
- Trial name
- VIOLET (NCT03096314)
- Testing
- Vitamin D3
- Where
- 47 sites in United States
- Volunteers
- 1,358 people
- Sponsor
- Massachusetts General Hospital
Chronic Kidney Diseases
SOP's for CKD-MBD-Biomarkers
CKD-MBD (Chronic Kidney Disease - Mineral and Bone Disorder) is an extensive disease and includes dysfunction of the mineral metabolism, the bone metabolism and cardiovascular diseases in the context of renal insufficiency.
- Trial name
- NCT02708368
- Testing
- blood withdrawal
- Where
- 2 sites in Germany
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- RWTH Aachen University
Stevens-Johnson Syndrome, Drug Reaction With Eosinophilia and Systemic Symptom
Vitamin D Levels in Non-immediate Drug Hypersensitivity Case-control Study
Serum vitamin D levels in drug-induced non-immediate reactions
- Conditions
- Stevens-Johnson Syndrome, Drug Reaction With Eosinophilia and Systemic Symptom, Maculopapular Exanthem, Vitamin D Deficiency
- Trial name
- NCT06263140
- Where
- Thailand
- Volunteers
- 120 people
- Sponsor
- Chulalongkorn University
Polycystic Ovary Syndrome, Healthy
Vitamin D Treatment, Pharmacogenetics and Glucose Metabolism
Background: Polycystic ovary syndrome (PCOS) is as common as 5-10% of all women in Austria. PCOS women frequently present with metabolic disturbances, hyperandrogenism and infertility. New therapy concepts are warranted.
- Conditions
- Polycystic Ovary Syndrome, Healthy, Vitamin D Deficiency
- Trial name
- NCT01721915
- Testing
- Vitamin D supplementation
- Where
- Austria
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Myoma;Uterus, Vitamin D Deficiency
Vitamin D Levels And Myoma Uteri
Women with at least one uterine leiomyoma and polycystic ovary syndrome over 10 mm and women with normal ultrasonographic findings were included in the study.
- Conditions
- Myoma;Uterus, Vitamin D Deficiency, Polycystic Ovary
- Trial name
- NCT03871868
- Where
- Turkey (Türkiye)
- Volunteers
- 300 people
- Sponsor
- Kanuni Sultan Suleyman Training and Research Hospital
Crohn Disease, Vitamin D Deficiency
Can Vitamin D Supplementation in People With Crohn's Disease Improve Symptoms as an Adjunct Therapy?
There are around 115,000 people in the United Kingdom suffering with Crohn's Disease (CD). CD can cause inflammation and ulcers to develop anywhere within the gut.
- Trial name
- D-CODE (NCT03718182)
- Testing
- Cholecalciferol
- Where
- United Kingdom
- Volunteers
- 50 people
- Sponsor
- University Hospital Birmingham NHS Foundation Trust
Type 2 Diabetes, Vitamin B12 Deficiency
Effect of Vitamin B12 Supplementation on Glycaemic Control in Uncontrolled Hyperhomocysteinemic Type 2 Diabetic Patients
Increased plasma homocysteine level is associated with macroangiopathy and nephropathy in type 2 diabetes. Also increased levels of serum homocysteine are associated with microalbuminuria which is associated with increased…
- Conditions
- Type 2 Diabetes, Vitamin B12 Deficiency, Hyperhomocysteinemia
- Trial name
- NCT02540642
- Testing
- METHYLCOBALAMIN 500 micrograms
- Where
- India
- Volunteers
- 38 people
- Sponsor
- Smt. Kashibai Navale Medical College and General Hospital
Vitamin D Deficiency, Metabolic Syndrome
Bioavailability and Biological Effects of Vitamin D2 Contained in Mushroom
The purpose of this study is to compare the safety and efficacy of two different amounts of vitamin D2 (600 or 4000 International Units/day) provided by mushrooms added to one of the daily meals versus same doses of vitamin D3…
- Conditions
- Vitamin D Deficiency, Metabolic Syndrome, Prediabetes
- Trial name
- NCT01488734
- Testing
- Mushroom with 600 IU vitamin D2, Mushroom with 4000 IU Vitamin D2, 600 IU Vitamin D3 and untreated mushroom
- Where
- United States
- Volunteers
- 47 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Hypophosphatemic Rickets, Growth Disorders
Effects of GH on Body Proportions and Final Height in X-Linked Hypophosphatemic Rickets
X-linked hypophosphatemic rickets (XLH) is characterized by rickets, disproportionate short stature, impaired renal phosphate reabsorption and vitamin D metabolism.
- Conditions
- Hypophosphatemic Rickets, Growth Disorders, Somatropin Therapy
- Trial name
- NCT00473187
- Testing
- somatropin
- Where
- Germany
- Sponsor
- University of Rostock
Visual Snow Syndrome, Migraine
Investigating Brain Function in People With and Without Visual Snow Syndrome Using Adaptation to Visual Stimuli
The goal of this study is to learn more about the brain pathways and activity involved in creating Visual Snow Syndrome (VSS). The main questions it aims to answer are: Does VSS arise from spontaneous activity in brain pathways?…
- Conditions
- Visual Snow Syndrome, Migraine, Healthy
- Trial name
- VPVSS (NCT06961864)
- Testing
- Visual Adaptation, Assessments and Questionnaires, Functional Magnetic Resonance Imaging (fMRI)
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Vitamin B-12 Deficiency
THE B-BABIES STUDY: An Observational Study of Group B Vitamins in Preterm Infants
Infancy may be associated with a risk of micronutrient depletion due to the high demands of rapid growth. This is particularly true when preterm birth occurs, as the period before term exhibits the highest rate of bodily growth…
- Trial name
- B-BABIES (NCT07163962)
- Where
- United Kingdom
- Volunteers
- 40 people
- Sponsor
- Norfolk and Norwich University Hospitals NHS Foundation Trust
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