Clinical trials: Vitamin Deficiencies
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency
This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT01651000
- Testing
- CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
- Where
- United States
- Volunteers
- 213 people
- Sponsor
- OPKO IP Holdings II, Inc.
Vitamin d Deficiency
Therapeutic Benefit of Preoperative Supplemental Vitamin D in Patients Undergoing Major Surgical Procedures.
Vitamin D (Vitamin D) deficiency is very common. We recently showed that 97% of 204 patients admitted to Truman Medical Center were Vitamin D deficient (<30 ng/ml).
- Trial name
- NCT02138591
- Testing
- Blood draw pre-operatively, Blood draw post-operative Day 1, Blood draw post-operative Day 2
- Where
- United States
- Sponsor
- University of Missouri, Kansas City
Hypovitaminosis D, Spinal Disease
Analysis of Hypovitaminosis D and Osteopenia/Osteoporosis in Spinal Disease Patients Who Underwent a Spinal Fusion at Illinois Neurological Institute, Peoria, IL., a Retrospective Review From November 1, 2012 to October 31, 2014 and Prospective Pilot From July 1, 2015-June 30, 2016
The purpose of this study is to determine if there is correlation between Vitamin D deficiency and spinal disease/spinal fusion surgery.
- Conditions
- Hypovitaminosis D, Spinal Disease, Osteoporosis
- Trial name
- NCT02534714
- Where
- United States
- Volunteers
- 460 people
- Sponsor
- OSF Healthcare System
Congenital Heart Disease, Thiamine Deficiency
The Role of Thiamine After Transcatheter Closure in Children With Left-to-Right Shunt Congenital Heart Disease
Currently, research on the effect of thiamine administration during transcatheter closure on the structure and function of the left ventricle by examining levels of matrix metalloproteinase-9 and tissue inhibitor of…
- Conditions
- Congenital Heart Disease, Thiamine Deficiency, Patent Ductus Arteriosus, Ventricular Septal Defect
- Trial name
- NCT06298344
- Testing
- Thiamine
- Where
- Indonesia
- Volunteers
- 86 people
- Sponsor
- Universitas Sumatera Utara
Vitamin D Deficiency, Stress Fracture
Vitamin D3 Supplementation and Stress Fracture Occurrence in High-Risk Collegiate Athletes
The main objective of this study is to find a correlation between vitamin D deficiency and stress fracture occurrences in athletes who participate in high-risk activities.
- Conditions
- Vitamin D Deficiency, Stress Fracture, Athletic Injuries, Orthopedic Disorder
- Trial name
- NCT03395171
- Testing
- Cholecalciferol (Vitamin D3)
- Volunteers
- 118 people, healthy volunteers welcome
- Sponsor
- Prisma Health-Midlands
Chronic Kidney Failure, Chronic Kidney Disease-Mineral and Bone Disorder
Mineral Bone Disorder in Dialysis
This study was conducted with 167 dialysis patients at Erciyes University Faculty of Medicine, Department of Internal Medicine, Department of Nephrology, and Dialysis Unit, with the approval of the Ethics Committee of Erciyes…
- Conditions
- Chronic Kidney Failure, Chronic Kidney Disease-Mineral and Bone Disorder, Dialysis, Hemodialysis
- Trial name
- MBDialysis (NCT07212972)
- Testing
- Hemodialysis or peritoneal Dialysis
- Where
- Turkey (Türkiye)
- Volunteers
- 167 people
- Sponsor
- Çanakkale Onsekiz Mart University
Extreme Prematurity, Anemia of Prematurity
Folic Acid Supplementation to Reduce Anemia in Extremely Preterm Infants
Anemia of Prematurity (AOP) is very common in extremely preterm infants and often leads to blood transfusions. Folic acid, essential for growth and DNA synthesis, is deficient in premature infants.
- Trial name
- FASCINATE (NCT06220461)
- Testing
- Folic acid
- Where
- Canada
- Volunteers
- 90 people
- Sponsor
- University of Calgary
Obesity, Pediatric, Obesity, Childhood
Efficacy of Vitamin D Supplementation in Obese Children
Vitamin D deficiency is common in the general population in the United States, but is more common in overweight and obese children.
- Conditions
- Obesity, Pediatric, Obesity, Childhood, Obesity, Morbid, Vitamin D Deficiency
- Trial name
- NCT02956408
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- Columbia University
Vitamin d Deficiency
Peripheral Immunological Effects of High-dose Vitamin D Treatment in Healthy Subjects
Vitamin D deficiency is associated with the risk of developing MS. Vitamin D treatment has therefore been tested as a background treatment for this pathology, with a seemingly modest clinical effect.
- Trial name
- VDSS (NCT05654818)
- Testing
- Vitamin D
- Where
- France
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de Nīmes
Vitamin D Deficiency
Effects of Vitamin D and Calcium Supplementation on Health and Well-being of Vitamin D Deficient UAE Citizens
The trial plan to determine whether a daily capsule containing vitamin D(3) (2000 IU), calcium (600 mg), both, or a placebo for 6 months in UAE citizens with evidence of vitamin D deficiency will lead to a clinical benefit.
- Trial name
- NCT02662491
- Testing
- Vitamin D and calcium, Vitamin D, Calcium
- Where
- United Arab Emirates
- Volunteers
- 545 people, healthy volunteers welcome
- Sponsor
- United Arab Emirates University
FGF23-related Hypophosphataemic Rickets and Osteomalacia
Post Marketing Surveillance Study to Observe Safety and Effectiveness of CRYSVITA® in S. Korean Patients
The objective of this post-marketing surveillance (PMS) study is to assess the safety and effectiveness of CRYSVITA injection 10, 20, and 30mg, equivalent to in routine clinical settings
- Trial name
- NCT06202027
- Testing
- FGF23-related hypophosphataemic rickets and osteomalacia
- Where
- 13 sites in South Korea
- Volunteers
- 100 people
- Sponsor
- Kyowa Kirin Korea Co., Ltd.
Hip Fracture, Vitamin D Deficiency
The Effect of Supplementation of Vitamin D Deficiency in Older People With Acute Hip Fracture:
This study will be done to evaluate the effect of load dose of vitamin D compared to the dose of usual clinical practice, in improving mobility and reducing disability in older people following a hip fracture.
- Trial name
- VITAMINA_D (NCT03213886)
- Testing
- Calcifediol (Vitamin D)
- Where
- Spain
- Volunteers
- 50 people
- Sponsor
- Leonor Cuadra Llopart
Vitamin D Deficiency
The 'Hidden' Biological Impact of Vitamin D Deficiency: a Biomarker Study; Part 2
The investigators major aims are to: determine the vitamin D status of a group of young, apparently healthy adults in Hong Kong; examine inter-relationships between vitamin D status and biomarkers of DNA damage and repair…
- Trial name
- NCT02451787
- Testing
- Vitamin D
- Where
- Hong Kong
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- The Hong Kong Polytechnic University
Vitamin D Deficiency
Environmental Influences on Vitamin D Status
Vitamin D deficiency is a common problem. The principal source of vitamin D for humans is solar exposure, with cutaneous synthesis of vitamin D by photoconversion of 7-dehydrocholesterol in the skin to pre-vitamin D3.
- Trial name
- Alaska/Hawaii (NCT00780247)
- Where
- United States
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Creighton University
Diabetic Nephropathies, Hyperhomocysteinemia
The Effect of Folic Acid Administration in the Progression of Microalbuminuria
The development of diabetic nephropathy has been linked to several genetic polymorphisms, including those related with homocysteine metabolism such as the methylenetetrahydrofolate reductase (MTHFR)and the…
- Trial name
- NCT00737126
- Testing
- Folic acid
- Where
- Mexico
- Volunteers
- 40 people
- Sponsor
- Hospital Universitario Dr. Jose E. Gonzalez
Hypovitaminosis D
A Study on Oral Vitamin D Megadoses
The purpose of this study is to determine if infrequent administration of oral vitamin D megadoses is effective treatment to maintain serum 25-hydroxyvitamin D(3) above target levels of 50-75 nmol/L.
- Trial name
- NCT01067898
- Testing
- vitamin D3 (cholecalciferol), olive oil, calcium carbonate
- Where
- Finland
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Helsinki University Central Hospital
Weight Gain, Anemia, Iron Deficiency
Egg Intervention During Pregnancy in Indonesia
The study consists of two arms: 1) intervention group using eggs as supplementary food given from 2nd trimester of pregnancy to birth, and 2) observational group of pregnant mothers.
- Conditions
- Weight Gain, Anemia, Iron Deficiency, Birth Weight, Birth Length
- Trial name
- PRECODE (NCT04694235)
- Testing
- Egg intervention
- Where
- Indonesia
- Volunteers
- 702 people, healthy volunteers welcome
- Sponsor
- SEAMEO Regional Centre for Food and Nutrition
Protein Malnutrition, Vitamin Deficiency
Evaluation of Protein Intake and Micronutrient Supplementation After Bariatric Surgery
Obesity is a chronic disease in which accumulation of excess body fat can result in impaired health. In cases of severe obesity, weight loss surgery can be necessary as a treatment.
- Conditions
- Protein Malnutrition, Vitamin Deficiency, Mineral Deficiency, Trace Element Deficiency
- Trial name
- BOP (NCT04587076)
- Where
- Germany
- Volunteers
- 38 people
- Sponsor
- University Medicine Greifswald
Vitamin B6 Deficiency
Vitamin B6 Dependence of One-Carbon Metabolism
Marginal vitamin B6 deficiency, which occurs commonly worldwide, leads to a cellular deficiency of the coenzyme pyridoxal phosphate (PLP).
- Trial name
- NCT00877812
- Testing
- Arm 1 glycine and leucine, Arm 2 Intervention of Serine and methionine infusion
- Where
- United States
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Florida
Vitamin A Deficiency, Vitamin A Toxicity
Liver and Bone Retinol Levels in Guatemalan Adolescents and Adults
Guatemala has enforced mandatory fortification of sugar with vitamin A (VA) since June 1974 and has led to a highly successful reduction in VA deficiency and associated disease. However, Ribaya-Mercado et al.
- Conditions
- Vitamin A Deficiency, Vitamin A Toxicity, Hypervitaminosis A
- Trial name
- GVAS (NCT04438200)
- Where
- 5 sites in Guatemala, United Kingdom
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Newcastle University
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