Clinical trials: Vitamin D Deficiency, completed
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Extension Study of CTAP101-CL-3001 or CTAP101-CL-3002
This extension study of subjects previously enrolled in studies CTAP101-CL-3001 or CTAP101-CL-3002 allows long term evaluation of the safety and efficacy of CTAP101 Capsules in reducing elevated intact parathyroid hormone (iPTH)…
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT02282813
- Testing
- CTAP101 Capsules, Calcitriol, Doxercalciferol
- Volunteers
- 298 people
- Sponsor
- OPKO Health, Inc.
Vitamin A Deficiency
Stopping Postpartum Vitamin A Supplementation: Missing Concealed Benefit
The purpose of this study is to evaluate the effect of post-partum maternal vitamin A supplementation on breast milk bioactive compounds and immune status, growth and morbidity of children in the first four months of life.
- Trial name
- NCT02043223
- Testing
- Vitamin A (<3-day postpartum), Vitamin A (6 wk postpartum), Vitamin A (<3-day and 6 wk postpartum)
- Where
- Bangladesh
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- International Centre for Diarrhoeal Disease Research, Bangladesh
Vitamin D Deficiency, Diabetes Mellitus
Vitamin D and HbA1c Levels in Diabetic Patients With CKD
The purpose of this study is to determine the association between serum 25-hydroxyvitamin D and HbA1c levels in diabetic patients with chronic kidney disease.
- Trial name
- NCT02906319
- Volunteers
- 100 people
- Sponsor
- Ng Yong Muh
Vitamin D Deficiency
Evaluation of Vitamin D Requirements During Pregnancy
The purpose of this study is to determine the effectiveness of vitamin D supplementation during pregnancy starting at the beginning of the second trimester.
- Trial name
- NCT00292591
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 501 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vitamin D Deficiency
Prevalence and Consequences of Vitamin D Deficiency in Pregnant Women in Switzerland
The purpose of this study is to determine the prevalence of vitamin D deficiency among the population of pregnant women receiving prenatal care and giving birth at the investigators' clinic.
- Trial name
- PCVDDPWS (NCT02904720)
- Where
- Switzerland
- Volunteers
- 1,199 people, healthy volunteers welcome
- Sponsor
- Insel Gruppe AG, University Hospital Bern
Epilepsy
Effect of Three Different Doses of Oral Cholecalciferol on 25-Hydroxyvitamin D Changes Among Epilepsy Patients With Hypovitaminosis D
To characterize the effect of three different doses of vitamin D3 supplementation on serum 25-hydroxyvitamin D (25(OH)D) changes in epilepsy patients receiving enzyme-inducing antiepileptic drugs (EIAEDs) versus patients…
- Trial name
- NCT02890823
- Testing
- Cholecalciferol
- Volunteers
- 210 people
- Sponsor
- Chulalongkorn University
Metabolic Syndrome
Metabolic Syndrome and Insulin Resistance at Allina
Vitamin D deficiency is widespread and appears to represent one easily and inexpensively modifiable risk factor for diabetes and cardiovascular disease.
- Trial name
- MISURA (NCT01545830)
- Testing
- vitamin D3 (cholecalciferol)
- Where
- United States
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Allina Health System
Vitamin D Deficiency
Effect of Vitamin D Oral Supplements on 25 OH Vitamin D Levels
Vitamin D deficiency is common world wide. 25 OH vitamin D level is the best indicator of vitamin D status. Vitamin D supplements are available as vitamin D2 or D3, in small daily or large weekly/monthly doses.
- Trial name
- NCT01170494
- Testing
- ergocalciferol 2000 IU orally, daily, ergocalciferol 25000 IU oraly every 2 weeks, ergocalciferol 50000 IU orally every 4 weeks
- Where
- Saudi Arabia
- Volunteers
- 279 people, healthy volunteers welcome
- Sponsor
- King Faisal Specialist Hospital & Research Center
Vitamin A Deficiency
Vitamin A Equivalence of the Provitamin A in Biofortified Bananas
The objective will be to quantify the vitamin A equivalence of the provitamin A in transgenic biofortified bananas.
- Trial name
- NCT02702622
- Testing
- Provitamin A-biofortified transgenic bananas
- Volunteers
- healthy volunteers welcome
- Sponsor
- Iowa State University
Mild Cognitive Impairment, Dementia
COMPARATIVE EFFECTIVENESS OF MCI and DEMENTIA TREATMENTS IN A COMMUNITY-BASED DEMENTIA PRACTICE
This retrospective study is a more extensive, confirmatory analysis of the cognitive and functional outcomes initially seen in 2 groups of MCI/dementia patients in Springfield, MA and compares specialized dementia care and a…
- Conditions
- Mild Cognitive Impairment, Dementia, Hypoxia, Hyperhomocysteinemia
- Trial name
- NCT02860338
- Volunteers
- 900 people
- Sponsor
- Clionsky Neuro Systems Inc.
Polycystic Ovary Syndrome, Hypovitaminosis D
The Effect of Vitamin D Supplementation Among Overweight Jordanian Women With Polycystic Ovary Syndrome (PCOS)
This is a prospective double-blind, randomized, parallel-group, placebo-controlled trial designed to examine the effect of supplementation with 50,000 IU vitamin D3 for 3 months on Polycystic Ovary Syndrome (PCOS) prognosis…
- Trial name
- NCT02328404
- Testing
- 50,000 IU vitamin D3
- Where
- Jordan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hayat Pharmaceutical Co. PLC
Vitamin D Deficiency, Pregnancy
Vitamin D Status of Pregnant Women and Their Children in Eau Claire, South Carolina
Science News (October 2004) called vitamin D deficiency a "silent epidemic" in America, with no group unaffected. Using new guidelines of optimal vitamin D levels, more than 90% of African American women now suffer from vitamin D…
- Trial name
- NCT00412087
- Testing
- cholecalciferol (vitamin D3), cholecalciferol
- Where
- United States
- Volunteers
- 564 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Anemia, Iron-Deficiency, Deficiency, Vitamin A
Newly Formulated, Extruded Fortified-blended Foods for Food Aid: the MFFAPP Tanzania Efficacy Study
Corn-soy vitamin and mineral fortified blended foods (FBFs) are primarily used for food aid, although sorghum and cowpea may be suitable alternative FBF commodities.
- Trial name
- NCT02847962
- Testing
- Corn Soy Blend Plus (CSB+), Corn Soy Blend 14 (CSB14), White Sorghum Cowpea Blend Variety 1
- Volunteers
- 2,179 people
- Sponsor
- Kansas State University
Vitamin D Deficiency
A Prospective, Multi-center Study to Evaluate the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency
To compare the efficacy of Vitamin D3 B.O.N. Intramuscular Injection within 12 weeks with that of placebo in adults with Vitamin D Deficiency.
- Trial name
- NCT02443246
- Testing
- Vitamin D3 B.O.N. Injection (cholecalciferol 200,000IU)
- Volunteers
- 84 people
- Sponsor
- Kwang Dong Pharmaceutical co., ltd.
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
Human Immunodeficiency Virus (HIV), Vitamin D Deficiency
Study of Vitamin D and Effect on Heart Disease and Insulin Resistance
The purpose of this study is to evaluate how Vitamin D affects endothelial function, inflammation, lipids, insulin resistance, vitamin D levels, and parathyroid hormone (PTH).
- Conditions
- Human Immunodeficiency Virus (HIV), Vitamin D Deficiency, HIV Infections
- Trial name
- NCT01093417
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 45 people
- Sponsor
- University Hospitals Cleveland Medical Center
Vitamin D Deficiency
Vitamin D and HIV-Cardiovascular Disease in Children and Young Adults
The relationship of Vitamin D levels in children and young adults to atherosclerosis.
- Trial name
- NCT01410305
- Where
- 2 sites in United States
- Volunteers
- 290 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center
Vitamin B 12 Deficiency
Vitamin B12 Acceptance and Biomarker Response Study
In this study, biomarker response after supplementation with oral and intramuscular vitamin B12 will be compared in a randomized clinical trial.
- Trial name
- NCT01832129
- Testing
- Oral administration of vitamin B12, i.m. injection of vitamin B12
- Where
- Switzerland
- Volunteers
- 37 people
- Sponsor
- University Hospital, Basel, Switzerland
Hypovitaminosis D
Cholecalciferol Supplementation for Sepsis in the ICU
Sepsis in a clinical entity that occurs in patients with serious infections. Though the severity of illness may vary, every year, approximately 1.6 million Americans are treated for sepsis.
- Trial name
- CSI (NCT01896544)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Massachusetts General Hospital
Obesity, Vitamin Deficiency
Postoperative Vitamin Supplementation in Morbidly Obese Patient (VITAAL Study)
This study is a double blind randomized controlled trial.
- Trial name
- NCT01609387
- Testing
- Fit For me, Davitamon
- Where
- Netherlands
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Rijnstate Hospital