Clinical trials: Vitamin D
Hypophosphatasia
Expanded Access Program for Asfotase Alfa Treatment for Patients With Infantile- or Juvenile-onset Hypophosphatasia (HPP)
This clinical trial is being conducted in Hypophosphatasia, a bone disorder caused by gene mutation(s) resulting in bone defects. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT02496689
- Testing
- asfotase alfa
- Where
- 5 sites in United States, France
- Sponsor
- Alexion Pharmaceuticals, Inc.
Atopic Dermatitis
Effects of Lactobacillus Reuteri Plus Vitamin D3 in Children With Atopic Dermatitis
The purpose of this study is to evaluate in a randomized, double-blinded, controlled trial, whether a new food supplement containing Lactobacillus reuteri DSM 17938 and vitamin D3 (Reuterin® D3) may improve the SCORAD in…
- Trial name
- NCT02945683
- Testing
- Reuterin D3
- Where
- Italy
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Noos S.r.l.
Other Preterm Infants, Vitamin D Deficiency
The Effect of Vitamin D Administration to Premature Infants on Vitamin D Status and Respiratory Morbidity
This trial objective is to assess whether doubling the daily intake of vitamin D improves serum vitamin D levels and serves as primary prevention of respiratory infections and asthma in premature infants.
- Conditions
- Other Preterm Infants, Vitamin D Deficiency, Bronchiolitis, Asthma
- Trial name
- NCT02404623
- Testing
- Vitamin D
- Where
- Israel
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Soroka University Medical Center
Vitamin D Deficiency
Impact of Vitamin D Status on Bones in Breastfed Infants
Vitamin D deficiency is widespread and linked to decreased bone mineral content. Little data exists regarding the vitamin D status and the relationship of 25-hydroxyvitamin D (25-OHD) status to functional bone health outcomes in…
- Trial name
- NCT00697294
- Testing
- Tri-Vi-Sol
- Where
- 3 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Corrosive Injury
Evaluation of the Role of N Acetyl Cysteine and Vitamin D in Improving Outcomes After Corrosive Ingestion
The goal of this clinical trial is to learn if N acetyl cysteine and vitaminD work to improve outcomes after corrosive ingestion in children.
- Trial name
- NCT07229456
- Testing
- N Acetyl Cysteine, Vitamin D (Cholecalciferol ), control group
- Where
- Egypt
- Volunteers
- 80 people
- Sponsor
- Ain Shams University
X-Linked Hypophosphatemia
A Study to Describe the Lived Experience of XLH for Adolescents at End of Skeletal Growth
An observational, prospective, mixed-methods study involving the integration of quantitative and qualitative data exploring the lived experience of burosumab-treated adolescents with XLH at the end of skeletal growth.
- Trial name
- NCT05181839
- Testing
- Burosumab
- Where
- 14 sites in France, Germany and 3 more
- Volunteers
- 25 people
- Sponsor
- Kyowa Kirin Pharmaceutical Development Ltd
Maternal Vitamin D Status, Neonatal Bone Quantitative Ultrasound Measurements
Maternal Vitamin D Status and Neonatal Bone Strength
Objectives: 1. To determine the incidence of vitamin D deficiency among Israeli pregnant women 2. To access whether maternal vitamin D status affects infant bone strength. Methods: 1.
- Trial name
- Vitamin D (NCT01630603)
- Where
- 3 sites in Israel
- Volunteers
- 100 people
- Sponsor
- Meir Medical Center
Hypovitaminosis D
Vitamin D Status and the Adequacy of Vitamin D Intake in Early Preterm Infants
Vitamin D is an essential nutrient. Deficiency of vitamin D is widespread. The prevalence of vitamin D deficiency in early preterm infants is unknown.
- Trial name
- NCT01793402
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Vitamin D
Correlation Between Vitamin D and Symptoms Severity of Autonomic Nervous Mediated Syncope Child and it 's RAAS
children ; autonomic nervous mediated syncope； vitamin D ; symptom score ; renin-angiotensin-aldosterone-system
- Trial name
- NCT04844957
- Testing
- Vitamin D, Full automatic chemiluminescence measuring instrument
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Kongyujie
Primary Hyperparathyroidism
Vitamin D Supplementation After Parathyroid Surgery
A randomised double blind clinical trial, accepted by the Medical Products Agency and registered in the European Clinical Trials Database.
- Trial name
- NCT00982722
- Testing
- cholecalciferol and calcium carbonate, calcium carbonate
- Where
- 2 sites in Sweden
- Volunteers
- 150 people
- Sponsor
- Karolinska University Hospital
Vitamin D Deficiency
Vitamin D Deficiency Still Growing
Vitamin D deficiency has become one of the most prevalent health problems in modern society. However, there has been no study that has reported the trend of vitamin D status in Asia.
- Trial name
- NCT03304795
- Volunteers
- 39,759 people, healthy volunteers welcome
- Sponsor
- DongGuk University
Insulin Resistance
Effect of Vitamin D Supplementation on Oral Glucose Tolerance Among Obese Adolescents
Childhood obesity is a rapidly growing epidemic in the US and the world. Current estimates suggest that 30% of our nation's children are either overweight ot obese.
- Trial name
- NCT01856946
- Testing
- 4,000 IU vitamin D3
- Where
- United States
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Missouri-Columbia
Smear Positive Pulmonary Tuberculosis
L-arginine and Vitamin D Adjunctive Therapy in Pulmonary Tuberculosis (TB)
The purpose of this study is to determine whether adjunctive L-arginine and vitamin D can improve response to standard short course TB therapy in people with newly diagnosed pulmonary TB.
- Trial name
- AVDAPT (NCT00677339)
- Testing
- L-arginine, Vitamin D
- Where
- Indonesia
- Volunteers
- 200 people
- Sponsor
- Menzies School of Health Research
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
Vitamin D Deficiency, Sickle Cell Disease
Vitamin D Status in Children With Sickle Cell Disease Living in Lyon, France
Vitamin D deficiency may be under-diagnosed in sickle cell disease French children. Therefore, the investigator need an epidemiologic study about the prevalence of vitamin D deficiency in this specific population.
- Trial name
- EVADDREP (NCT04694976)
- Testing
- 25-OH Vitamin D measure
- Where
- France
- Volunteers
- 130 people
- Sponsor
- Hospices Civils de Lyon
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
Vitamin D Deficiency, Orthostatic Intolerance
Vitamin D Deficiency and Dysautonomia
In previous work the investigator identified a group of children between the ages of 10-18 years whose diagnostic workup for chronic nausea unexplained by conventional diagnostic tests has unexpectedly revealed underlying…
- Conditions
- Vitamin D Deficiency, Orthostatic Intolerance, Nausea
- Trial name
- NCT03032328
- Testing
- vitamin D supplement
- Where
- United States
- Volunteers
- 31 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Healthy
Vitamin D Needs of Early Adolescent Children
While a large percentage of children have low blood vitamin D levels, the significance of these low levels and the impact on health is unclear.
- Trial name
- NCT00931580
- Testing
- Vitamin D3
- Where
- 3 sites in United States
- Volunteers
- 323 people, healthy volunteers welcome
- Sponsor
- University of Georgia
Healthy
Study Comparing Two Isoforms of Vitamin D Supplements for Infants
There are two different types of vitamin D - vitamin D3 (animal source) and vitamin D2 (plant source). Almost all the usual vitamin D preparations for infants available in Canadian pharmacies contain vitamin D3 which may not be…
- Trial name
- NCT01190137
- Testing
- Cholecalciferol (D3) or ergocalciferol (D2)
- Where
- Canada
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- McGill University