Clinical trials: Vitamin Deficiencies
Hypophosphatasia (HPP)
Safety and Efficacy of Asfotase Alfa in Juvenile Patients With Hypophosphatasia (HPP)
This clinical trial studied the safety and efficacy of asfotase alfa in children with HPP compared to a historical control group.
- Trial name
- NCT00952484
- Testing
- asfotase alfa
- Where
- 2 sites in United States, Canada
- Volunteers
- 13 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Arterial Dysfunction, Chronic Kidney Disease
Vitamin D and Arterial Function in Patients With Chronic Kidney Disease
The purpose of this study is to determine whether nutritional (cholecalciferol) or active vitamin D (calcitriol) supplementation improves vascular endothelial function in patients with stage IIIB and IV chronic kidney disease…
- Trial name
- NCT01384539
- Testing
- Cholecalciferol, Calcitriol
- Where
- United States
- Volunteers
- 128 people
- Sponsor
- University of Colorado, Denver
Renal Dialysis, Vitamin D Deficiency
Vitamin D Supplementation in Kidney Disease
This is a double-blind placebo controlled pilot study to determine if vitamin D supplementation in hemodialysis (HD) patients will improve physical function and cognition.
- Trial name
- NCT01229878
- Testing
- Cholecalciferol (Vitamin D)
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- VA Office of Research and Development
Vitamin D Deficiency
Effect of Vitamin D3 on Vascular Function
Vitamin D is a natural nutrient. A little comes from our normal daily diet. Most of it comes from our skin after we have been in sunlight. If we have darker skin, we make less vitamin D.
- Trial name
- NCT00948298
- Testing
- Vitamin D
- Volunteers
- 130 people
- Sponsor
- Charles Drew University of Medicine and Science
Hematopoietic Stem Cell Transplantation, Delirium
High Dose Intravenous Thiamine for the Prevention of Delirium in Allogeneic Hematopoietic Stem Cell Transplantation
Purpose: To conduct a randomized controlled pilot study investigating the use of high dose intravenous (IV) thiamine to prevent delirium and mitigate the long-term effects of delirium, including health-related quality of life…
- Conditions
- Hematopoietic Stem Cell Transplantation, Delirium, Thiamine Deficiency
- Trial name
- NCT03263442
- Testing
- Thiamine, Normal saline
- Where
- United States
- Volunteers
- 66 people
- Sponsor
- UNC Lineberger Comprehensive Cancer Center
Vitamin D Deficiency
Establishing the Vitamin D Requirements During Lactation
The purpose of this study is to determine the effectiveness and safety of maternal and infant vitamin D supplementation as a function of ethnicity and latitude in the prevention of vitamin D deficiency in the breastfeeding…
- Trial name
- NCT00412074
- Testing
- 400 IU Vitamin D3 (cholecalciferol), 2400 IU Vitamin D3 (cholecalciferol), 6400 IU Vitamin D3 (cholecalciferol)
- Where
- 2 sites in United States
- Volunteers
- 460 people, healthy volunteers welcome
- Sponsor
- Medical University of South Carolina
X-linked Hypophosphatemia
A Repeated Study of KRN23 in Adults With X-Linked Hypophosphatemia
The primary purpose of this study is to assess the safety and efficacy of repeated subcutaneous (SC) injections of KRN23 in adult subjects with X-Linked Hypophosphatemia (XLH).
- Trial name
- NCT01340482
- Testing
- KRN23
- Where
- 6 sites in United States, Canada
- Volunteers
- 29 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Leg Cramps, Nocturnal
Vitamin D for Painful Nocturnal Leg Cramps
1. Research question: Does vitamin D reduce the frequency and severity of nocturnal leg cramps in older persons who previously took quinine for leg cramps? 2.
- Trial name
- NCT00715429
- Testing
- vitamin d
- Where
- United States
- Volunteers
- 29 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Sickle Cell Disease, Vitamin D Deficiency
Vitamin D for Sickle-cell Respiratory Complications
This study aims to answer the question whether oral vitamin D supplementation can decrease lung complications in children and adolescents with sickle cell disease.
- Conditions
- Sickle Cell Disease, Vitamin D Deficiency, Acute Chest Syndrome, Asthma
- Trial name
- NCT01443728
- Testing
- Experimental: Vitamin D3 100,000 IU, Active Comparator: Vitamin D3 12,000 IU
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- Gary M Brittenham, MD
Hypovitaminosis D
Comparing a Novel Phototherapy Kiosk to Oral Vitamin D Supplementation
The purpose of this project is to demonstrate the capability of a standing phototherapy kiosk (SPK) to stimulate cutaneous vitamin D3 and subsequent production of 25 Hydroxyvitamin (OH) D safely and as efficiently as an oral…
- Trial name
- NCT04556136
- Testing
- Standing Phototherapy Kiosk, D3 Oral supplement
- Where
- United States
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Madigan Army Medical Center
Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy
The Effect of Etelcalcetide on CKD-MBD
The proposed study will investigate the effects of etelcalcetide on the bone and blood-vessel health in patients with CKD-MBD. The investigators will test if etelcalcetide makes bone and blood-vessels healthier.
- Conditions
- Chronic Kidney Disease Mineral and Bone Disorder, Renal Osteodystrophy, Vascular Calcification, Hyperparathyroidism; Secondary, Renal
- Trial name
- Parsabiv-MBD (NCT03960437)
- Testing
- Etelcalcetide
- Where
- United States
- Volunteers
- 22 people
- Sponsor
- Thomas Nickolas, MD MS
Hypovitaminosis D
Rapid Normalization of Vitamin D in Critically Ill Children: A Phase II Dose Evaluation Randomized Controlled Trial
Documented roles for vitamin D in calcium homeostasis, cardiovascular and respiratory health, inflammation, innate immunity, and neuromuscular function have led to the hypothesis that deficiency might represent a modifiable risk…
- Trial name
- VITdAL-PICU (NCT02452762)
- Testing
- Vitamin D3
- Where
- 4 sites in Austria, Canada and 1 more
- Volunteers
- 67 people
- Sponsor
- Children's Hospital of Eastern Ontario
X-linked Hypophosphatemia
Study of KRN23 in Adults With X-linked Hypophosphatemia (XLH)
The primary efficacy objective of this study is to establish the effect of burosumab treatment compared with placebo on increasing serum phosphorus levels in adults with XLH.
- Trial name
- NCT02526160
- Testing
- burosumab
- Where
- 25 sites in United States, France and 5 more
- Volunteers
- 134 people
- Sponsor
- Kyowa Kirin, Inc.
Vitamin D Deficiency, Cardiomyopathies
Can Vitamin D Reduce Heart Muscle Damage After Bypass Surgery?
Background and study aim: Heart diseases are among the most common causes of death worldwide. A large proportion of deaths are caused by heart attacks (myocardial infarction), where blood flow to the heart is reduced resulting in…
- Conditions
- Vitamin D Deficiency, Cardiomyopathies, Apoptosis, Inflammation
- Trial name
- NCT04323852
- Testing
- Vitamin D
- Where
- Iran
- Volunteers
- 70 people
- Sponsor
- Shahid Beheshti University of Medical Sciences
Rheumatoid Arthritis, Vitamin D Deficiency
Treatment of Vitamin D Deficiency in Patients With Rheumatoid Arthritis
The purpose of this study is to investigate the effect of vitamin D repletion on disease activity and disability in patients with rheumatoid arthritis.
- Trial name
- NCT01426347
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 139 people
- Sponsor
- Johns Hopkins University
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, Gastrointestinal Diseases
Ultraviolet Light And Vitamin D In Subjects With Fat Malabsorption Or After Gastric Bypass Surgery
Patients with fat malabsorption due to Crohn's disease, ulcerative colitis, or other causes including cystic fibrosis, among others, or who have undergone gastric bypass have increased incidence of vitamin D deficiency relative…
- Trial name
- NCT01910792
- Testing
- Sperti Lamp
- Where
- United States
- Volunteers
- 19 people
- Sponsor
- Boston University
Secondary Hyperparathyroidism, Chronic Kidney Disease
Study to Assess Patient Management Practices and Quality of Life With Paricalcitol Capsules in the Treatment of Secondary Hyperparathyroidism in Stage 3-5 Chronic Kidney Disease Patients Not Yet on Dialysis
Paricalcitol capsules (Zemplar®) received marketing authorization in Sweden in late 2007 for the prevention and treatment of secondary hyperparathyroidism in patients with Stage 3 \& 4 Chronic Kidney Disease (CKD).
- Trial name
- CAPITOL (NCT01265992)
- Where
- 10 sites in Sweden
- Volunteers
- 50 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
Vitamin D Deficiency
Treatment of Vitamin D Insufficiency
The purpose of this study is to answer the following questions: Does vitamin D increase calcium absorption, bone mass and muscle mass and function in women past menopause who have mildly low vitamin D levels? Do these benefits…
- Trial name
- NCT00933244
- Testing
- High Dose Vitamin D3, Low Dose Vitamin D3
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Hypovitaminosis D
To Study the Nutri-Genomic Response of Vit-D Supplementation in African-Americans
Three hundred thirty (330) overweight, pre-hypertensive/controlled hypertensive, African-American participants will be enrolled in a 8 week study to assess the effect of two administrations of Vitamin D3 on Vitamin D serum…
- Trial name
- NCT02802449
- Testing
- 25 Hydroxy- Vitamin D3 [25 (OH) D3]
- Where
- United States
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- Charles Drew University of Medicine and Science