Clinical trials: Vitamin Deficiencies
Vitamin A Deficiency, Maternal Mortality
Trial of the Impact of Vitamin A on Maternal Mortality
Main objectives: To evaluate the impact of weekly vitamin A supplementation (VAS) to women of reproductive age (15-45 years) on maternal mortality in rural Ghana, and to compare this with the impact on overall mortality.
- Conditions
- Vitamin A Deficiency, Maternal Mortality, Maternal Morbidity
- Trial name
- ObaapaVitA (NCT00211341)
- Testing
- Vitamin A
- Where
- Ghana
- Volunteers
- 100,000 people, healthy volunteers welcome
- Sponsor
- London School of Hygiene and Tropical Medicine
Osteoporosis, Renal Osteodystrophy
The Effects of 12-months of Denosumab on Bone Density in Prevalent Kidney Transplant Recipients
This is a Phase 2 Multi-Center Clinical Trial (safety and effectiveness trial) in 60 patients (40 denosumab; 20 placebo) who have had a kidney transplant for 12-months or longer with more than 30% of kidney function.
- Conditions
- Osteoporosis, Renal Osteodystrophy, Kidney Transplant; Complications
- Trial name
- ProliaKTx (NCT03960554)
- Testing
- Denosumab Inj 60 mg/ml
- Where
- 3 sites in United States
- Volunteers
- 8 people
- Sponsor
- Thomas Nickolas, MD MS
Vitamin D Deficiency
Vitamin D and Mortality: an Individual Participant Data Meta-analysis of Standardized 25-hydroxyvitamin D
Vitamin D deficiency is a risk factor for mortality but existing data are limited by missing standardization of laboratory methods for 25-hydroxyvitamin D (25[OH]D).
- Trial name
- NCT02438488
- Where
- Austria
- Volunteers
- 26,916 people, healthy volunteers welcome
- Sponsor
- Medical University of Graz
Vitamin D Deficiency
Vitamin D and Health Status of British African-Caribbean Women
Vitamin D deficiency remains a global public health issue (Wilson 2017). In the United Kingdom (UK). There is a lack of research looking at vitamin D status of the British African-Caribbean population.
- Trial name
- NCT04179370
- Testing
- N/A - no intervention. Observational study.
- Where
- United Kingdom
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- University of Surrey
Vitamin D Deficiency, Hypertension
Vitamin D Deficiency in Patients With Hypertension
This study will evaluate the effects of Vitamin D replacement and the effects of an approved medication for hypertension, aliskiren (Tekturna), in patients with high blood pressure who have low levels of vitamin D in their blood.
- Trial name
- NCT00974922
- Testing
- Aliskiren, Cholecalciferol
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- UConn Health
Nutrient Deficiency, Age-Related Immunodeficiency
Milk Biofortification Promotes Health Benefits in Institutionalized Elderly
The project aims to study the effects of inclusion of sunflower oil, vitamin E and selenium in the diet of dairy cows on milk composition and the influence of modified milk on nutrition and health of elderly.
- Conditions
- Nutrient Deficiency, Age-Related Immunodeficiency, Vitamin E Deficiency, Selenium Deficiency
- Trial name
- NCT02980094
- Testing
- Milk Antioxidant group(A), Milk Oil group(O), Milk Antioxidant and oil(AO)
- Where
- Brazil
- Volunteers
- 132 people, healthy volunteers welcome
- Sponsor
- Eduardo Ferriolli
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
Osteopenia, Bone Metabolism Disorders
Effects of Aerobic Versus Resistance Training on Bone Metabolism in Stage 3-4 Chronic Kidney Disease
This randomized controlled trial investigates the comparative effects of aerobic versus resistance training on bone mineral density (BMD) and bone metabolism markers in patients with stage 3 or 4 chronic kidney disease (CKD).
- Conditions
- Osteopenia, Bone Metabolism Disorders, Chronic Kidney Disease (Stage 3-4), Mineral and Bone Disorder (CKD-MBD)
- Trial name
- CKD-BONE-EX (NCT07133256)
- Testing
- Resistance Exercise, Aerobic Training
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Sinai University
Nutritional Rickets, Bone Turnover Rate Disorder
Effectiveness of Vitamin C Supplementation in Treatment of Rickets
Effectiveness of therapeutic dose of vitamin C in infants and children with nutritional rickets as an adjuvant therapy with vitamin D and calcium The study is two armed Randomized Control Trial, to validate the role of Vit C…
- Trial name
- NCT05310760
- Testing
- Vit C
- Where
- Egypt
- Volunteers
- 88 people
- Sponsor
- Cairo University
Type 1 Diabetes, Vitamin D Deficiency/Insufficiency
The Effects of Vitamin D on Glycemic Control and Proinflammatory Markers in Adolescents With T1DM
The investigators are conducting a prospective cross-over study to evaluate the effects of vitamin D supplementation on diabetes control and the pro-inflammatory markers involved in microvascular complications in adolescents with…
- Trial name
- NCT01697228
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Children's Hospital Los Angeles
Vitamin D Deficiency
Impact of Vitamin D Status on Bones in Breastfed Infants
Vitamin D deficiency is widespread and linked to decreased bone mineral content. Little data exists regarding the vitamin D status and the relationship of 25-hydroxyvitamin D (25-OHD) status to functional bone health outcomes in…
- Trial name
- NCT00697294
- Testing
- Tri-Vi-Sol
- Where
- 3 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Renal Osteodystrophy
Cholecalciferol Versus Doxercalciferol in the Treatment of Secondary Hyperparathyroidism in Chronic Kidney Disease
The majority of patients with moderate to severe chronic kidney disease (CKD) (stages 3 and 4) develop secondary hyperparathyroidism (2°HPT), but the optimal therapy to control hyperparathyroidism in this group is unknown.
- Trial name
- NCT00285467
- Testing
- doxercalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 55 people
- Sponsor
- Indiana University
Vitamin D Deficiency, 25-Hydroxyvitamin D3 Deficiency, Selective
Effect of Vitamin D3 Supplementation in Children From 12 to 30 Months of Age.
Background Vitamin D (VD) is essential for calcium absorption, bone health and growth in children. In a national representative sample authors found mean serum concentration of 25-Hydroxi-Vitamin-D (25-OH-D) of 59 nmol/L, in…
- Trial name
- NCT03544671
- Testing
- Vitamin D
- Where
- Mexico
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Instituto Nacional de Salud Publica, Mexico
X-linked Hypophosphatemia
Open Label Study of KRN23 on Osteomalacia in Adults With X-linked Hypophosphatemia (XLH)
The primary objective of this study is to establish the effect of KRN23 treatment on improvement in XLH-associated osteomalacia as determined by osteoid volume (osteoid volume/bone volume, OV/BV).
- Trial name
- NCT02537431
- Testing
- burosumab
- Where
- 14 sites in United States, Canada and 4 more
- Volunteers
- 14 people
- Sponsor
- Kyowa Kirin, Inc.
Healthy
Study Comparing Two Isoforms of Vitamin D Supplements for Infants
There are two different types of vitamin D - vitamin D3 (animal source) and vitamin D2 (plant source). Almost all the usual vitamin D preparations for infants available in Canadian pharmacies contain vitamin D3 which may not be…
- Trial name
- NCT01190137
- Testing
- Cholecalciferol (D3) or ergocalciferol (D2)
- Where
- Canada
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- McGill University
Kidney Diseases, Dialysis; Complications
PRevEnting FracturEs in REnal Disease - 1
PREFERRED-1 is a pilot study designed to determine the feasibility of a large randomized, pragmatic, open-label, comparative-effectiveness trial of denosumab for the prevention of fragility fractures in people receiving…
- Conditions
- Kidney Diseases, Dialysis; Complications, Fragility Fracture, Chronic Kidney Disease-Mineral and Bone Disorder
- Trial name
- PREFERRED-1 (NCT05096195)
- Testing
- Denosumab 60 mg/ml, Calcium and vitamin D prophylaxis, Monitoring of post-injection calcium and phosphate
- Where
- 6 sites in Canada
- Volunteers
- 60 people
- Sponsor
- Western University, Canada
Healthy, Vitamin D Deficiency
Vitamin D Deficiency in Adolescent Girls
Fibroblast growth factor 23 (FGF23) is a newly discovered hormone which regulates phosphate and vitamin D levels. In this study, we are looking at what the normal levels of FGF23 are in adolescent girls and how these levels vary…
- Trial name
- NCT01180946
- Testing
- ergocalciferol
- Where
- United States
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Vitamin D Deficiency
Effect of Vitamin D3 and Omega-3FA on Leptin and HbA1C With Vitamin D Deficiency
The Combined effect of Vitamin D3 and Omega-3 supplements on serum leptin and Glycated hemoglobin (Hb A1C) levels in Jordanian people with vitamin D deficiency.
- Trial name
- NCT03735303
- Testing
- VD3 group, omega 3 FA group, VD3 and omega- 3FA group
- Where
- Jordan
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
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
Vitamin D Deficiency
Assessment of Vitamin D Supplementation and Immune Function
Hypothesis: Volunteers with vitamin D insufficiency (serum 25(OH)D 25-50 nmol/L) given intermediate or high dose vitamin D supplements (2,000 or 5,000 IU per day) will have increased production of anti-bacterial peptides and…
- Trial name
- FL-82 (NCT01399151)
- Testing
- Vitamin D - Treatment 1, Vitamin D - Treatment 2, Vitamin D - Treatment 3
- Where
- United States
- Volunteers
- 23 people, healthy volunteers welcome
- Sponsor
- USDA, Western Human Nutrition Research Center
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