Clinical trials: Vitamin D
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.
Type 1 Diabetes
Effect of Vitamin D on the Honeymoon Period in Children and Adolescents With Type 1 Diabetes
The purpose of this study is to determine if supplementation with Vitamin D in children and adolescents with newly diagnosed type 1 diabetes increases the number of patients who enter the honeymoon period.
- Trial name
- NCT01724190
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- Nationwide Children's Hospital
Verruca Viral
A Comparative Study to Assess Efficacy of Intralesional MMR Vaccine and Intralesional Vitamin D3 in Treatment of Warts
Common warts are papulonodular epidermal lesions caused by human papillomavirus (HPV) usually by the strains 1, 2, 4, 27 or 57. Cutaneous warts occur in 7% to 10% of the general population, with a maximum incidence between 12 and…
- Trial name
- MMR (NCT04428359)
- Testing
- Measles-Mumps-Rubella Vaccine, Vit D
- Where
- Nepal
- Volunteers
- 66 people
- Sponsor
- B.P. Koirala Institute of Health Sciences
Inflammatory Bowel Disease, Crohn's Disease
Vitamin D Levels in Children With IBD
Research has shown that children with Inflammatory Bowel Disease may have lower levels of vitamin D than healthy children, especially in the winter.
- Conditions
- Inflammatory Bowel Disease, Crohn's Disease, Ulcerative Colitis
- Trial name
- NCT00621257
- Testing
- ergocalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 134 people
- Sponsor
- Boston Children's Hospital
Hypophosphatasia (HPP)
A Retrospective Study of the Natural History of Patients With Severe Perinatal and Infantile Hypophosphatasia (HPP)
This study aims to characterize the natural history of patients with severe perinatal or infantile onset HPP.
- Trial name
- NCT01419028
- Where
- 12 sites in United States, Australia and 5 more
- Volunteers
- 48 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Vitamin d Deficiency
Blue Sky Study: Impact of Milk and Vitamin D for Child Growth and Health
This intervention study will address the impact of vitamin D fortified milk and vitamin D supplements on the growth, levels of vitamin D, insulin-like growth factor 1, growth hormone, academic attention, respiratory infections…
- Trial name
- BSS (NCT00886379)
- Testing
- Mongolian milk without vitamin D, Mongolian milk with vitamin D, UHT milk
- Volunteers
- 597 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Hypophosphatasia (HPP)
Safety and Efficacy Study of Asfotase Alfa in Severely Affected Infants With Hypophosphatasia (HPP)
This clinical trial studies the safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP.
- Trial name
- NCT00744042
- Testing
- asfotase alfa
- Where
- 10 sites in United States, Canada and 2 more
- Volunteers
- 11 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Vitamin D Deficiency
Personalized Vitamin D Supplementation in European and African Americans
The proposed study is a randomized, double-blind, controlled, multi-center clinical trial of six months of daily oral vitamin D3 (cholecalciferol).
- Trial name
- NCT02362269
- Testing
- Vitamin D
- Where
- 2 sites in United States
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
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
Atopic Dermatitis, Vitamin D Deficiency
Vitamin D Deficiency and Atopic Dermatitis
Atopic dermatitis is a chronic skin disease characterized by a defective skin barrier, inflammation, and increased propensity for skin infections.
- Trial name
- NCT01337635
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Medical College of Wisconsin
HIV Infection
Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART
This is a 48 week randomized double-blind, placebo-controlled prospective cohort study of adolescents and young adults with HIV infection in the Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN) who are…
- Trial name
- NCT01751646
- Testing
- Vitamin D3 50,000 IU
- Where
- 17 sites in United States, Puerto Rico
- Volunteers
- 214 people
- Sponsor
- University of North Carolina, Chapel Hill
Secondary Hyperparathyroidism, End-Stage Renal Disease
Study to Evaluate Safety of Vitamin D Receptor Activators in Patients Ages 0 to 16 With Chronic Kidney Disease Stage 5 Receiving Peritoneal Dialysis Within Current Clinical Practice
The objective of this study was to observe the safety of paricalcitol utilization in pediatric participants (ages 0 to 16 years old) being treated for secondary hyperparathyroidism (SHPT).
- Trial name
- NCT01134315
- Testing
- Paricalcitol, Calcitriol
- Where
- 18 sites in United States
- Volunteers
- 61 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
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.
Breast Cancer
Vitamin D and Breast Cancer Biomarkers in Female Patients
RATIONALE: Vitamin D may help prevent breast cancer. PURPOSE: This randomized clinical trial is studying vitamin D and breast cancer biomarkers in female patients.
- Trial name
- NCT01224678
- Testing
- vitamin D
- Where
- 103 sites in United States
- Volunteers
- 300 people
- Sponsor
- Alliance for Clinical Trials in Oncology
Asthma
Vitamin D in Preschoolers With Viral-induced Asthma
In this 7-month randomized controlled trial, children aged 1-6 years with asthma attacks triggered mostly by colds, will receive a high dose of vitamin D or a placebo every 3.5 months during their usual clinic visit.
- Trial name
- DIVA (NCT02197702)
- Testing
- vitamin D
- Where
- Canada
- Volunteers
- 47 people
- Sponsor
- St. Justine's Hospital
Hypophosphatasia
Open-Label Study of Asfotase Alfa in Infants and Children ≤ 5 Years of Age With Hypophosphatasia (HPP)
This clinical trial was conducted to study hypophosphatasia (HPP), a bone disorder caused by gene mutations or changes. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT01176266
- Testing
- asfotase alfa
- Where
- 23 sites in United States, Australia and 10 more
- Volunteers
- 69 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
X-Linked Hypophosphatemia
Study of the Safety, Pharmacodynamics (PD) and Efficacy of KRN23 in Children From 1 to 4 Years Old With X-linked Hypophosphatemia (XLH)
The primary objectives of the study are to: Establish the safety profile of KRN23 for the treatment of XLH in children between 1 and 4 years old Determine the PD effects of KRN23 treatment on serum phosphorus and other PD markers…
- Trial name
- NCT02750618
- Testing
- Burosumab
- Where
- 3 sites in United States
- Volunteers
- 13 people
- Sponsor
- Kyowa Kirin, Inc.
Vitamin D Receptor Defect
Association Between Vitamin D Receptor Polymorphism and Serum Vitamin D Levels in Children With Low-Energy Fractures
This study was designed to determine the impact of vitamin D serum levels and vitamin D receptor (VDR) polymorphisms on the occurrence of low energy fractures in children.
- Trial name
- NCT02805647
- Where
- Poland
- Volunteers
- 222 people, healthy volunteers welcome
- Sponsor
- Medical University of Bialystok
Diabetes Mellitus, Type 1, Diabetes Mellitus
Diamyd Administered Into Lymph Nodes in Combination With Vitamin D in Type 1 Diabetes
The objective of DIAGNODE-2 is to evaluate the efficacy of Diamyd compared to Placebo, upon administration directly into a lymph node in combination with an oral vitamin D/Placebo regimen, in terms of preserving endogenous…
- Conditions
- Diabetes Mellitus, Type 1, Diabetes Mellitus, Autoimmune Diseases, Metabolic Disease
- Trial name
- NCT03345004
- Testing
- Diamyd, Vitamin D
- Where
- 18 sites in Czechia, Netherlands and 2 more
- Volunteers
- 109 people
- Sponsor
- Diamyd Medical AB
HIV Infections
Vitamin D Supplementation in HIV Youth
The purpose of this study is to determine the correct dose of Vitamin D to give to prevent HIV related complications.
- Trial name
- NCT01523496
- Testing
- Vitamin D control dose, Vitamin D supplementation-
- Where
- 2 sites in United States
- Volunteers
- 190 people, healthy volunteers welcome
- Sponsor
- University Hospitals Cleveland Medical Center