Clinical trials: Vitamin Deficiencies
Vitamin D Deficiency
The Pharmacokinetics of a Single Large Dose of Vitamin D3
When people eat a meal, some, but not all of the calcium in that meal is absorbed, that is, moved into the bloodstream. When the skin is exposed to sunlight during summer months, Vitamin D is made there and then modified into…
- Trial name
- Stoss (NCT00473239)
- Testing
- cholecalciferol.
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Creighton University
Lung Diseases, Interstitial, Vitamin D Deficiency
Vitamin D Deficiency and Effect of Its Supplementation on Interstitial Lung Diseases(ILD).
This study evaluates serum level of Vitamin D in Interstitial Lung Diseases in patients with Interstitial Lung Diseases other than connective tissue diseases associated-Interstitial Lung Diseases and effects of its…
- Trial name
- ILD (NCT04100226)
- Testing
- Vitamin D3 (1.25 (OH)2 cholecalciferol)
- Where
- Egypt
- Volunteers
- 104 people
- Sponsor
- Cairo University
Vitamin A Deficiency
Impact of Consumption of Orange-fleshed Sweet Potatoes on the Vitamin A Status of Bangladeshi Women of Reproductive Age
The primary purpose of this study is to determine whether daily consumption of orange-fleshed sweet potatoes increases the vitamin A status of Bangladeshi women of reproductive age.
- Trial name
- NCT00453648
- Testing
- White-fleshed sweet potatoes, Orange-fleshed sweet potatoes (boiled), Orange-fleshed sweet potatoes (fried)
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- University of California, Davis
Vitamin D Deficiency, Sarcopenia
The Effectiveness of Vitamin D Supplementation in Patients With End-stage Knee Osteoarthritis
Osteoarthritis (OA) knee is one of the commonest chronic degenerative conditions. It causes disability in elderlies due to pain and stiffness.
- Conditions
- Vitamin D Deficiency, Sarcopenia, Knee Osteoarthritis
- Trial name
- NCT05981534
- Testing
- Vitamin D
- Where
- Hong Kong
- Volunteers
- 56 people
- Sponsor
- Chinese University of Hong Kong
Obesity and Overweight, Nutritional Deficiency
Nutritional Health and Satisfaction After Bariatric Surgery: a Five-Year Retrospective Study
A retrospective study analyzing long-term outcomes of metabolic bariatric surgery (MBS) with a focus on weight loss, nutritional deficiencies, and patient satisfaction over a five-year follow-up.
- Conditions
- Obesity and Overweight, Nutritional Deficiency, Bariatric Surgery
- Trial name
- NCT06664580
- Testing
- Metabolic Bariatric Surgery Procedures
- Volunteers
- 249 people
- Sponsor
- San Raffaele Telematic University
Vitamin B 12 Deficiency
Cobalamin Supplementation During Infancy; Effect on B-vitamin Status, Growth and Psychomotor Development
Adequate levels of vitamin B12 (cobalamin) is necessary for normal growth and development in infants. We have earlier investigated cobalamin status in healthy children and we observed metabolic evidence of impaired cobalamin…
- Trial name
- NCT00479479
- Testing
- Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
- Where
- Norway
- Volunteers
- 107 people, healthy volunteers welcome
- Sponsor
- Haukeland University Hospital
Vitamin d Deficiency
Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health
This intervention study will address the impact of vitamin D fortified milk and vitamin D supplements on the growth, levels of vitamin D, insulin-like growth factor 1, growth hormone, academic attention, respiratory infections…
- Trial name
- BSS (NCT00886379)
- Testing
- Mongolian milk without vitamin D, Mongolian milk with vitamin D, UHT milk
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Thyroid, PD-1
Correlation Vitamin D Level to Endocrine Autoimmune Toxicity Due to Immune Checkpoint Inhibitors
The purpose of this research study is to see if the amount of vitamin D in ones blood makes it more or less likely to develop thyroid gland toxicity when being treated with immunotherapy that blocks the activity of proteins…
- Conditions
- Thyroid, PD-1, Cancer
- Trial name
- NCT04615988
- Testing
- blood draw and questionnaire completion, questionnaire completion, blood collection
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Icahn School of Medicine at Mount Sinai
Vitamin D Deficiency, Parkinson Disease
12 Weeks Vitamin D Supplementation and Physical Activity in PD Patients With DBS
Parkinson's disease (PD) is the second most frequently appearing neurodegenerative disease. It is a progressive disease of the central nervous system (CNS) and affects around 1% of people over 60 years old.
- Trial name
- NCT04768023
- Testing
- Juvit D3
- Where
- Poland
- Volunteers
- 50 people
- Sponsor
- Medical University of Gdansk
Secondary Hyperparathyroidism, Chronic Kidney Disease
The Effect of Diuretics on Mineral and Bone Disorder in Chronic Kidney Disease Patients
Chronic kidney disease (CKD) patients often have associated systemic hypertension due to volume retention, as one of the mechanisms, therefore the use of diuretics is widespread in this population.
- Trial name
- NCT03082742
- Testing
- Hydrochlorothiazide, Furosemide
- Where
- Brazil
- Volunteers
- 52 people
- Sponsor
- University of Sao Paulo General Hospital
Micronutrient Deficiencies
This Randomized Trial Aims to Investigate the Efficacy of Balanced Nutritional Tablets-Comprehensive Multivitamin and Mineral Supplements- in Preventing Micronutrient Deficiencies Among Patients Utilizing GLP-1 RAs for Weight Loss in Comparison to a Placebo Control
Glucagon-like peptide-1 receptor agonists (GLP-1 RAs), including Ozempic (semaglutide) and Saxenda (liraglutide), are gaining traction in treating obesity and its associated diseases due to their capacity to facilitate…
- Trial name
- NCT06981936
- Testing
- Balance Tablet
- Where
- Egypt
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- General Committee of Teaching Hospitals and Institutes, Egypt
Choline Deficiency, Anxiety
The Associations Between Dietary Choline, Genetics and Anxiety/Depression
The associations between dietary choline, genetics and anxiety/depression
- Conditions
- Choline Deficiency, Anxiety, Depression
- Trial name
- NCT04036552
- Where
- United Kingdom
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- St Mary's University College
Vitamin D Deficiency, Primary Open-angle Glaucoma
Comparison of Vitamin D Status and Vitamin D Receptor Polymorphisms in Patients With High Myopia and Primary Open-angle Glaucoma
Vitamin D deficiency is known to be significantly associated with high myopia. This study investigated the vitamin D status in patients with high myopia and primary open-angle glaucoma, in order to understand the relationship…
- Conditions
- Vitamin D Deficiency, Primary Open-angle Glaucoma, High Myopia, Vitamin D Receptor Polymorphisms
- Trial name
- NCT03021629
- Testing
- Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by an enzyme-linked immuno-absorbent assay
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Lv Yingjuan
Vitamin D Deficiency
Effects of Different Vitamin D3 Formulations in Vitamin D-Deficient Adults
This randomized controlled superiority pilot trial will evaluate the efficacy of two vitamin D3 formulations administered over eight weeks in adults with subclinical or clinical vitamin D deficiency.
- Trial name
- AMORPH-D (NCT07317830)
- Testing
- Experimental 1 (powdered supplement), Experimental 2 (oily supplement)
- Where
- Serbia
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Center for Health Sciences, Serbia
Hypocalcemia, Hypoparathyroidism
Vitamin D Levels and Postoperative Hypocalcemia After Total Thyroidectomy
Hypocalcemia is one of the most frequent complications of total thyroidectomy, a procedure used for benign as well as malignant conditions of the thyroid gland. Postoperative hypocalcemia is usually caused by hypoparathyroidism.
- Conditions
- Hypocalcemia, Hypoparathyroidism, Vitamin D Deficiency, Thyroidectomy
- Trial name
- NCT01039714
- Where
- Greece
- Volunteers
- 200 people
- Sponsor
- Aristotle University Of Thessaloniki
Osteoporosis
The Relationship Between the Residual Renal Function and Osteoporosis Treatment
The relationship between osteoporosis drugs and kidney damage is unclear. In this study, we plan to reveal relationship between osteoporosis drugs and kidney damage.
- Trial name
- NCT02304887
- Testing
- Bis, SERM Teriparatide, Denosumab
- Where
- Japan
- Volunteers
- 1,000 people
- Sponsor
- Toshihiko Kono
Vitamin D Deficiency, Crohn Disease
the Effect of Vitamin D in Crohn's Disease
To evaluate the efficacy and safety of 12-week goal-directed therapy in the treatment of refractory inflammatory patients, and to initially explore treatment options.
- Trial name
- NCT04134065
- Testing
- Vitamin D
- Volunteers
- 30 people
- Sponsor
- Nanjing University School of Medicine
Aphthous Stomatitis
Prevention of Recurrent Aphthous Stomatitis Using Vitamins
The purpose of this research study is to find out if taking a multivitamin daily can affect the number of canker sores that people get and how long they last.
- Trial name
- NCT00527306
- Testing
- multivitamin
- Where
- United States
- Volunteers
- 160 people
- Sponsor
- UConn Health
Vitamin B 12 Deficiency
Cobalamin Status in Young Children With Developmental Delay
During fetal life and infancy, an adequate cobalamin status is important for normal growth and central nervous system development.
- Trial name
- NCT00710138
- Testing
- Hydroxycobalamin (Vitamin B12 Depot, Nycomed Pharma)
- Where
- Norway
- Volunteers
- 100 people
- Sponsor
- Haukeland University Hospital
Gynaecological Disease, Vitamin D Deficiency
Association Between Vitamin D and the Risk of Uterine Fibroids
The aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could reduce the risk of uterine fibroids in reproductive stage women.
- Conditions
- Gynaecological Disease, Vitamin D Deficiency, Uterine Fibroids
- Trial name
- ABVDATROUF (NCT03586947)
- Testing
- Vitamin D3 400 UNT Oral Capsule
- Where
- China
- Volunteers
- 1,160 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University