Clinical trials: Vitamin Deficiencies
HIV, Metabolic Syndrome
Incidence of HANA Conditions in HIV-infected Individuals
With the availability of effective anti-retroviral therapy, HIV-infected individuals are expected not to die of AIDS and have longer life expectancy.
- Conditions
- HIV, Metabolic Syndrome, Osteopenia, Osteoporosis
- Trial name
- NCT03483584
- Where
- Hong Kong
- Volunteers
- 215 people
- Sponsor
- Chinese University of Hong Kong
X-linked Hypophosphatemia
Study of KRN23 (Burosumab), a Recombinant Fully Human Monoclonal Antibody Against Fibroblast Growth Factor 23 (FGF23), in Pediatric Subjects With X-linked Hypophosphatemia (XLH)
The objectives of the study are to: Identify a dose and dosing regimen of burosumab, based on safety and pharmacodynamic (PD) effect, in pediatric XLH participants Establish the safety profile of burosumab for the treatment of…
- Trial name
- NCT02163577
- Testing
- burosumab
- Where
- 9 sites in United States, France and 2 more
- Volunteers
- 52 people
- Sponsor
- Kyowa Kirin, Inc.
Coronary Artery Disease, Chronic Kidney Disease
Effect of Vitamin D Supplement on Inflammation Markers in High-Risk Cardiovascular Patients With Chronic Kidney Disease
The purpose of this study is to determine if vitamin D supplementation changes the results of certain tests associated with inflammation in the body using an oral, synthetic form of vitamin D called paricalcitol.
- Conditions
- Coronary Artery Disease, Chronic Kidney Disease, Hypovitaminosis D, Secondary Hyperparathyroidism
- Trial name
- VINCA-CKD (NCT01012414)
- Testing
- paricalcitol
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Thomas Jefferson University
Vitamin D Deficiency, Coronary Artery Disease
Vitamin D Repletion in Coronary Artery Disease
Vitamin D (Vit D) status is an emerging risk marker of great interest in cardiovascular disease (CVD). Lower serum levels of Vit D are associated with both cardiac risk factors and prevalent cardiovascular disease.
- Conditions
- Vitamin D Deficiency, Coronary Artery Disease, Endothelial Dysfunction, Inflammation
- Trial name
- NCT01570309
- Testing
- Ergocalciferol, Sugar pill
- Where
- 2 sites in United States
- Volunteers
- 96 people
- Sponsor
- Seth I. Sokol, M.D.
Chronic Kidney Disease
Supplementation With Cholecalciferol in Dialysis Patients
Hypovitaminosis D is highly prevalent among patients with chronic kidney disease, especially in those undergoing dialysis. The loss of protein to the dialysis solution seems to contribute significantly to the reduced serum levels…
- Trial name
- NCT01974245
- Testing
- Cholecalciferol
- Where
- Brazil
- Volunteers
- 55 people
- Sponsor
- Federal University of São Paulo
Crohn's Disease, Vitamin D Deficiency
Trial of High Dose Vitamin D in Patient's With Crohn's Disease
Crohn's disease is more common in areas of the world with less sunlight exposure. Sunlight is a major source of vitamin D. There is some research to suggest that patient's with higher vitamin D levels are less likely to undergo…
- Trial name
- RODIN-CD (NCT02208310)
- Testing
- Cholecalciferol 10,000 IU, Cholecalciferol 400 IU
- Where
- 4 sites in United States
- Volunteers
- 11 people
- Sponsor
- University of Michigan
Frail Elderly, Vitamin d Deficiency
Vitamin D in Vulnerable Adults (VIVA-VA)
Vitamin D insufficiency is a problem of growing concern, given its prevalence in older persons and the association of low vitamin D with multiple major health problems, including mobility and balance deterioration and falls…
- Trial name
- VIVA-VA (NCT01170273)
- Testing
- vitamin D
- Where
- United States
- Volunteers
- 130 people, healthy volunteers welcome
- Sponsor
- VA Office of Research and Development
Chronic Kidney Disease stage3, Chronic Kidney Disease stage4
Phase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary Hyperparathyroidism
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled study in children with stage 3-4 chronic kidney disease (CKD), secondary hyperparathyroidism (SHPT) and vitamin D insufficiency.
- Conditions
- Chronic Kidney Disease stage3, Chronic Kidney Disease stage4, Vitamin d Deficiency, Secondary Hyperparathyroidism
- Trial name
- NCT05543928
- Testing
- CTAP101
- Where
- 2 sites in United States
- Volunteers
- 2 people
- Sponsor
- OPKO Health, Inc.
Craniocerebral Trauma, Intracranial Aneurysm
Hypovitaminosis D in Neurocritical Patients
Vitamin D has been shown to impact prognosis in a variety of retrospective and randomized clinical trials within an intensive care unit (ICU) environment.
- Conditions
- Craniocerebral Trauma, Intracranial Aneurysm, Brain Neoplasms, Spinal Cord Injuries
- Trial name
- NCT02881957
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 274 people
- Sponsor
- University of Utah
X-Linked Hypophosphatemia
Long-Term Extension Study of KRN23 in Adult Subjects With X-Linked Hypophosphatemia (XLH)
The primary objectives of this study are to: Assess the long-term safety of KRN23 subcutaneous (SC) administration in adult subjects with XLH Assess the proportion of subjects achieving serum phosphorus levels in the normal range…
- Trial name
- NCT02312687
- Testing
- KRN23
- Where
- 5 sites in United States
- Volunteers
- 20 people
- Sponsor
- Kyowa Kirin, Inc.
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.
Obesity, Insulin Resistance
Correction of Vitamin D Levels and Its Effect on Insulin Resistance and Weight Gain in Obese Youth
Vitamin D deficiency is extremely common in obese youth. In our obese population followed in the Endocrinology clinic at Children's Medical Center Dallas, vitamin D levels were inversely correlated with a measure of insulin…
- Conditions
- Obesity, Insulin Resistance, Vitamin D Deficiency
- Trial name
- NCT02168660
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 109 people
- Sponsor
- Perrin C White, MD
Obesity, Vitamin D Deficiency
Efficacy of Vitamin D Supplementation in Bariatric Surgery Patients
As the use of bariatric surgery for treatment of extreme obesity adults continues to rise, clinicians must be aware of pre-existing nutritional deficiencies in overweight and obese patients.
- Trial name
- NCT01385098
- Testing
- Vitamin D3 and Calcium
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Vadim Sherman, MD
Vitamin D Deficiency, Thoracic Surgery
Prevention of Vitamin D Deficiency Following Pediatric CHD Surgery: a Phase II Dose Evaluation Randomized Controlled Trial Comparing Usual Care With a High Dose Pre-operative Supplementation Regimen Based on the Institute of Medicine Daily Upper Tolerable Intake Level
Our research group has shown that almost all children with congenital heart disease (CHD) are vitamin D deficient following heart surgery.
- Conditions
- Vitamin D Deficiency, Thoracic Surgery, Pediatric Disorders, Heart Defects, Congenital
- Trial name
- HICCUPS 2 (NCT01838447)
- Testing
- Cholecalciferol
- Where
- Canada
- Volunteers
- 46 people
- Sponsor
- Children's Hospital of Eastern Ontario
Hypovitaminosis D
High Dose Preoperative Cholecalciferol Supplementation and Perioperative Vitamin D Status
A growing body of evidence suggests that robust postoperative immune function is associated with a lower risk of surgical site infections (SSIs).
- Trial name
- NCT01689779
- Testing
- 100,000 IU cholecalciferol
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Massachusetts General Hospital
Obesity, Endothelial Dysfunction
Effect of Vitamin D Supplementation on Endothelial Function in Obese Adolescents
Vitamin D deficiency has been linked to endothelial dysfunction in adults. Obese adolescents have a high prevalence of Vitamin D deficiency as well as evidence of endothelial dysfunction.
- Conditions
- Obesity, Endothelial Dysfunction, Vitamin D Deficiency
- Trial name
- NCT01746264
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Prostate Cancer, Vitamin D Deficiency
Vitamin D Supplementation in RNA-seq Profiles of Single-core Prostate Samples, Among Veterans
Veterans between the ages of 50-75, who are having a prostate biopsy, will be recruited for their permission to collect an extra biopsy core for RNA-sequencing.
- Conditions
- Prostate Cancer, Vitamin D Deficiency, Stress Reaction
- Trial name
- VitD/RNA-seq (NCT04621500)
- Testing
- cholecalciferol, Standard of Care Prostate Biopsy - collection of 13th core for RNA-seq, Standard of Care Prostate Biopsies at baseline and after one year vitamin D3 supplementation
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
Vitamin D Deficiency, Short Bowel Syndrome
Treatment of Vitamin D Deficiency in Intestinal Rehabilitation Clinic Patients With a Portable Ultraviolet B Lamp
This is a randomized, controlled, unblinded pilot study for patients with vitamin D deficiency in Intestinal Rehabilitation clinic.
- Trial name
- NCT01930539
- Testing
- Ultraviolet B lamp
- Where
- United States
- Volunteers
- 11 people
- Sponsor
- University of Nebraska
Vitamin D Deficiency
Vitamin D Supplementation Requirement in Obese Subjects
Vitamin D deficiency is common in obese patients. Most of vitamin D supplementation studies were done with non-obese subjects. This study looks at vitamin D supplementation requirements in obese patients as compared to non-obese…
- Trial name
- NCT00996866
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 27 people
- Sponsor
- Winthrop University Hospital
Vitamin B1 Deficiency, Thiamine Deficiency
The Effect of SLC19A3 Inhibition on the Pharmacokinetics of Thiamine
In Part 1, subjects will be administered thiamine, thiamine with metformin, and thiamine with trimethoprim. Part 2 will expand on Part 1 and subjects will be administered thiamine and thiamine with trimethoprim.
- Trial name
- NCT03746106
- Testing
- Trimethoprim, Metformin, Vitamin B1
- Where
- United States
- Volunteers
- 7 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco