Clinical trials: Deficiency, Vitamin D
Vitamin D Deficiency
The D-BIICEP Study
Athletes and active individuals have been identified as an at-risk group for a low vitamin D status, specifically those residing in countries of higher latitude (such as the United Kingdom).
- Trial name
- D-BIICEP (NCT03253055)
- Testing
- DEXA, pQCT, Lifestyle Questionnaire
- Where
- 2 sites in United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Surrey
Vitamin D Deficiency, Neuromuscular Block
D Vitamin Effects on Neuromuscular Blocker Reverse Time
Background/aim: Investigators aimed to investigate the effect of D vitamin levels on Sugammadex and Neostigmine reverse durations in the study.
- Conditions
- Vitamin D Deficiency, Neuromuscular Block, Neuromuscular Block Problem
- Trial name
- NCT03734250
- Volunteers
- 84 people
- Sponsor
- Duzce University
Vitamin D Deficiency
Evaluation of a Transdermal Vitamin D3 Delivery System, D3forME
A clinical need exists for non-oral vitamin D administration. This study is designed to test a new proprietary transdermal system. It is looking to see if this new system will safely and successfully deliver vitamin D3 to humans.
- Trial name
- D3forME (NCT02174718)
- Testing
- Transdermal D Patch, Oral vitamin D3
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Vitamin D Deficiency, Pre-Eclampsia
Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia
Vitamin D deficient pregnant ladies were selected and randomized into 2 groups for routine daily dose of multivitamin (400IU vitamin D3) versus maximum safest treatment daily dose (4000IU vitamin D3).
- Trial name
- NCT03101150
- Testing
- 400 IU Vitamin D3, 4000 IU Vitamin D3
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Vitamin D Deficiency
Treatment Study of Vitamin D Deficiency in Adolescents
To compare the efficacy of two high dose vitamin D3 regimens (5,000 IU daily vs. 50,000 IU weekly) used clinically for the treatment of vitamin D deficiency versus a low dose of vitamin D3 used for supplementation (1,000 IU…
- Trial name
- NCT01784029
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 183 people, healthy volunteers welcome
- Sponsor
- Montefiore Medical Center
Polycystic Ovary Syndrome, Vitamin D Deficiency
The Effects of Vitamin D on Angiogenic Factors in Women With Polycystic Ovary Syndrome
Polycystic Ovary Syndrome (PCOS) affects 5 to 10% of women of reproductive age. It is characterized by a cluster of hyperandrogenism, hyperinsulinemia, menstrual dysfunction, hirsutism and infertility.
- Trial name
- NCT02460380
- Testing
- Vitamin D3
- Volunteers
- 93 people
- Sponsor
- Maimonides Medical Center
Hypertensive Disease, Deficiency of Vitamin D3
Effect of Vitamin D3 on Cardiovascular Risk Factors
The aim of this study is to investigate whether a supplementation of Vitamin D3 can be used to reduce atherosclerotic risk factors.
- Trial name
- NCT01501916
- Testing
- Vitamin D3
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Martin-Luther-Universität Halle-Wittenberg
Preterm Birth, Preterm Labor
Correlation Between Maternal Vitamin D Level And Preterm Birth
Assessment of correlation between vitamin D level and prevalence of preterm births remains limited. The exact role of vitamin D in preterm birth has not yet been clearly defined ,where some studies showed vitamin D deficiency…
- Conditions
- Preterm Birth, Preterm Labor, Vitamin D Deficiency
- Trial name
- NCT03638037
- Testing
- Vitamin D measurement
- Where
- Egypt
- Volunteers
- 138 people
- Sponsor
- Ain Shams Maternity Hospital
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
Hidradenitis Suppurativa, Mediterranean Diet
Nutritional Status and Hidradenitis Suppurativa (Acne Inversa)
Hidradenitis suppurativa (HS) is a chronic inflammatory, debilitating skin disorder. The exacerbating factors of HS include nutrition and adiposity.
- Conditions
- Hidradenitis Suppurativa, Mediterranean Diet, Body Composition, Vitamin D Deficiency
- Trial name
- NutriHidra (NCT03683238)
- Testing
- Mediterranean Diet
- Volunteers
- 81 people, healthy volunteers welcome
- Sponsor
- Federico II University
Deficiency, Vitamin D, Diabetes, Gestational
The Relation Between Vitamin D and Gestational Diabetes Mellitus
Gestational diabetes mellitus (GDM) is defined as any degree of glucose intolerance with the onset or first recognition during pregnancy.
- Trial name
- NCT03665974
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Hacettepe University
Gynaecological Disease, Vitamin D Deficiency
Association Between Vitamin D and the Development of Uterine Fibroids
the aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could inhibit the growth of uterine fibroids in reproductive stage women.
- Trial name
- NCT03584529
- Testing
- Vitamin D 3
- Where
- China
- Volunteers
- 360 people
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Gynaecological Disease, Vitamin D Deficiency
Association Between Vitamin D and the Risk of Uterine Fibroids
The aim of this randomised clinical trial study is to evaluate whether supplementation with vitamin D could reduce the risk of uterine fibroids in reproductive stage women.
- Conditions
- Gynaecological Disease, Vitamin D Deficiency, Uterine Fibroids
- Trial name
- ABVDATROUF (NCT03586947)
- Testing
- Vitamin D3 400 UNT Oral Capsule
- Where
- China
- Volunteers
- 1,160 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Female Infertility Due to Diminished Ovarian Reserve, Vitamin D Deficiency
Differences in Ovarian Reserve Markers and Vitamin D Between Infertile Indian, Arabian and Caucasian Population
The aim of this study is to confirm the difference in ovarian reserve markers and serum vitamine D levels between infertile indian, arabian and caucasian population.
- Conditions
- Female Infertility Due to Diminished Ovarian Reserve, Vitamin D Deficiency, Hormone Deficiency, Follicular Cyst of Ovary
- Trial name
- NCT02209168
- Where
- Spain
- Volunteers
- healthy volunteers welcome
- Sponsor
- IVI Madrid
Kidney Failure, Chronic, Anemia
Cholecalciferol Supplementation for Anemia and Mineral and Bone Disorder in Hemodialysis Patients
The purpose of this study is to determine whether cholecalciferol supplementation decrease the blood concentrations of hepcidin-25 in hemodialysis patients.
- Conditions
- Kidney Failure, Chronic, Anemia, Vitamin D Deficiency, Bone Diseases, Metabolic
- Trial name
- CHAMBER (NCT02214563)
- Testing
- Cholecalciferol, Olive oil
- Where
- 7 sites in Japan
- Volunteers
- 90 people
- Sponsor
- Takayuki Hamano
Hypovitaminosis D, Spinal Disease
Analysis of Hypovitaminosis D and Osteopenia/Osteoporosis in Spinal Disease Patients Who Underwent a Spinal Fusion at Illinois Neurological Institute, Peoria, IL., a Retrospective Review From November 1, 2012 to October 31, 2014 and Prospective Pilot From July 1, 2015-June 30, 2016
The purpose of this study is to determine if there is correlation between Vitamin D deficiency and spinal disease/spinal fusion surgery.
- Conditions
- Hypovitaminosis D, Spinal Disease, Osteoporosis
- Trial name
- NCT02534714
- Where
- United States
- Volunteers
- 460 people
- Sponsor
- OSF Healthcare System
Vitamin D Deficiency, Hemodialysis Patient
Cholecalciferol Supplementation Effect on Parathyroid Hormone in Hemodialysis Patients
Introduction. Vitamin D regulates mineral metabolism. Its deficiency has been associated with diabetes, cancer and increased mortality. 25OH vitamin D (25VD) is stable and suitable for the evaluation of vitamin D sufficiency.
- Trial name
- NCT03648528
- Testing
- cholecalciferol
- Volunteers
- 120 people
- Sponsor
- Cooperativa Asistencia Sindicato Médico Uruguay
Vitamin D Deficiency, Non-ST Elevation Myocardial Infarction (nSTEMI)
Vitamin D Deficiency Treatment Outcomes After Non-ST-Segment Elevation Myocardial Infarction
The leading cause of death in the world is due to cardiovascular events, which originate from coronary artery stenosis therefore it affects myocardial blood flow and finally may cause infarction.
- Conditions
- Vitamin D Deficiency, Non-ST Elevation Myocardial Infarction (nSTEMI), Inflammation, Coronary Artery Disease With Myocardial Infarction
- Trial name
- NAVID (NCT03405207)
- Testing
- Vitamin D3 50000 UNT Oral Capsule
- Where
- Iran
- Volunteers
- 70 people
- Sponsor
- Isfahan University of Medical Sciences
Sickle Cell Anemia in Children, Vitamin A Deficiency in Children
Nutritional Outcomes After Vitamin A Supplementation in Subjects With SCD
This study establishes the safety and efficacy of vit A supplementation doses (3000 and 6000 IU/d) over 8 weeks in children with SCD-SS, ages 9 and older and test the impact of vit A supplementation on key functional and clinical…
- Trial name
- NCT03632876
- Testing
- retinyl palmitate
- Where
- United States
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Children's Hospital of Philadelphia
Osteoporosis, Vitamin D Deficiency
Physiologic Interactions Between the Adrenal- and the Parathyroid Glands
To investigate possible physiologic interactions between the adrenal- and the parathyroid glands in patients with secondary hyperparathyroidism.
- Conditions
- Osteoporosis, Vitamin D Deficiency, Cardiovascular Disease
- Trial name
- AldOst (NCT02572960)
- Testing
- Valsartan, Cholecalciferol
- Where
- Denmark
- Volunteers
- 81 people
- Sponsor
- University of Aarhus