Clinical trials: Deficiency, Vitamin D
Critical Illness
Validation of Prediction Model of Vitamin D Deficiency
Many studies have pointed out that patients with vitamin D deficiency have a longer stay in the intensive care unit and a poor prognosis.
- Trial name
- NCT05094388
- Testing
- Admitted to intensive care units
- Where
- Taiwan
- Volunteers
- 400 people
- Sponsor
- National Taiwan University Hospital
Crohn Disease, Vitamin D Deficiency
Effects of Supplementation of Vitamin D in Patients With Crohn's Disease
Thus, the aim of the current study is to assess the influence of vitamin D deficiency and, consequently, of serum calcium deficiency in the body composition, muscular activity, bone mineral density, fatigue, and exercise…
- Conditions
- Crohn Disease, Vitamin D Deficiency, Fatigue, Sarcopenia
- Trial name
- NCT02704624
- Testing
- Vitamin D
- Where
- Brazil
- Volunteers
- 110 people
- Sponsor
- Federal University of Juiz de Fora
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
Vitamin D Deficiency
Serum and Semen Vitamin D Level With Semen Parameters
vitamin D may have multiple functions, one of them is modulating reproductive processes and the reproductive role of vitamin D is highlighted by expression of the vitamin D receptors in testis, male reproductive tract and sperms
- Trial name
- NCT03477136
- Testing
- ELISA to evaluate serum and seminal vitamin D level
- Where
- Egypt
- Volunteers
- 150 people
- Sponsor
- Assiut University
Obesity, Vitamin D Deficiency
The Effect of Weight on Vitamin D Dose Response
Vitamin D3 is a vitamin that is an essential component of biological regulating systems in humans. Sun exposure is the predominant source of vitamin D3. Previous research has shown that vitamin D3 deficiency is common worldwide.
- Trial name
- Weight (NCT01013584)
- Testing
- cholecalciferol
- Where
- United States
- Volunteers
- 67 people, healthy volunteers welcome
- Sponsor
- Creighton University
Renal Osteodystrophy, Chronic Kidney Diseases
Precision Medicine Approaches to Renal Osteodystrophy
Treatment of renal osteodystrophy is impeded by the lack of practical and accurate tools to determine underlying bone turnover. Gold standard bone biopsy is not practical in the clinic for the vast majority of kidney disease…
- Conditions
- Renal Osteodystrophy, Chronic Kidney Diseases, CKD-MBD, Bone Turnover Rate Disorder
- Trial name
- PMaROD (NCT05880914)
- Testing
- miRNAseq analysis, Standard treatment for bone disorder
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Thomas Nickolas
X-linked Hypophosphatemia (XLH)
Study to Assess the Safety, Pharmacokinetics and Efficacy of KRN23 in Adult Chinese Patients With XLH
The purpose of this study is to assess the safety, pharmacokinetics and efficacy of KRN23 in adult Chinese patients with XLH
- Trial name
- NCT04842019
- Testing
- KRN23
- Where
- 5 sites in China
- Volunteers
- 18 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Vitamin D Deficiency, Implant Assesment
Effect of Vitamin D on the Clinical and Radiographic of Unsplinted Mandibular Implant Overdentures
This study investigates the effect of vitamin D on bone loss around mandibular implant overdentures. Bone levels around implants will be measured to understand how vitamin Daffect the health of implant-supported dentures.
- Conditions
- Vitamin D Deficiency, Implant Assesment, Radiography, Clinical and Radiographic Effect
- Trial name
- Vit D and bone (NCT07200011)
- Testing
- Observational: Serum Vitamin D Levels
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Mansoura University
Vitamin d Deficiency, Central Retinal Vein Occlusion
Vitamin D Levels in Patients With Central Retinal Vein Occlusion- a Prospective Controlled Study
Retinal vein occlusion (RVO) is a common vascular disease of the eye. Studies have shown that the risk of venous thrombosis is higher in winter so even concerning RVO.
- Trial name
- NCT01793181
- Where
- Sweden
- Volunteers
- 216 people
- Sponsor
- St. Erik Eye Hospital
Female Infertility, Polycystic Ovary Syndrome
Vitamin D Supplementation and Improvement of PCOS Therapy and IVF Outcomes in Infertile Saudi Women
This randomized double-blinded-controlled clinical trial consists of two protocols as follow: protocol 1: evaluation of the therapeutic effects of Vitamin D3 supplement when given alone and in combination with an…
- Conditions
- Female Infertility, Polycystic Ovary Syndrome, Pathologic Processes, Vitamin D Deficiency
- Trial name
- NCT05106712
- Testing
- Vitamin D3, Clomiphene Citrate, Letrozole
- Volunteers
- 700 people
- Sponsor
- Umm Al-Qura University
Vitamin D Deficiency
The Effects of Vitamin D3 Alone and in a Combination With Omega-3 on the Association of C-peptide With Glycemic Control
The Effects of Vitamin D3 alone and in a combination with omega-3 on the association of C-peptide with glycemic control
- Trial name
- NCT04307784
- Testing
- VD3, Omega-3FA, VD3 and Omega-3FA
- Where
- Jordan
- Volunteers
- 115 people, healthy volunteers welcome
- Sponsor
- Applied Science Private University
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
End-Stage Renal Disease
Vitamin D3 Supplementation in Dialysis Patients
Vitamin D deficiency is highly prevalent among dialysis patients, and has been associated with cardiovascular risk factors such as increased aortic pulse wave velocity, blood pressure, inflammation, and brain natriuretic peptide.
- Trial name
- NCT01312714
- Testing
- Cholecalciferol
- Where
- Denmark
- Volunteers
- 64 people
- Sponsor
- Regional Hospital Holstebro
Vitamin D Deficiency, Critical Illness
Prevalence of Deficiency of Vitamin D in Critically Ill Patients
Vitamin D has been shown to related to clinical outcomes in critically ill patients. The object of this study is to investigate the prevalence of Vitamin D deficiency in critically ill patients with various length of ICU stay .
- Trial name
- NCT03639584
- Where
- Taiwan
- Volunteers
- 662 people
- Sponsor
- National Taiwan University Hospital
Ergocalciferol
Pilot Study: The Effect of Ergocalciferol on Plasma Mucin-1 Levels
To determine if a one-time oral administration of ergocalciferol results in a decline in plasma mucin-1 levels in healthy individuals and individuals with ADTKD-MUC1.
- Trial name
- NCT03747523
- Testing
- Ergocalciferol
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Wake Forest University Health Sciences
Obesity, Childhood
Monthly Boluses Versus Daily Doses for Correcting Blood Vitamin D Deficit in Obese Children and Adolescents
Childhood obesity is one of the most serious public health challenges of the 21st century, with an increasing prevalence over time in developed countries.
- Trial name
- OBEVIDOS (NCT03516968)
- Testing
- Monthly bolus of cholecalciferol per os, Daily dose of cholecalciferol per os
- Where
- 4 sites in France
- Volunteers
- 68 people
- Sponsor
- Hospices Civils de Lyon
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
Iron Deficiency, Anaemia in Children
Effect of Iron and Vitamin D Supplementation to Iron Status in Iron Deficiency Anemia
Iron and vitamin D are two essential micronutrients for the normal growth of young children, and their deficiencies are still a major health problem in developing countries, including Indonesia.
- Trial name
- NCT06148545
- Testing
- Elemental iron, Elemental iron and Vit D
- Where
- Indonesia
- Volunteers
- 57 people, healthy volunteers welcome
- Sponsor
- Nadirah Rasyid Ridha
Asthma, Vitamin D Resistant Rickets
Assessment Of Vitamin D Role In The Pathogenesis Of Asthma In Vitamin D Resistent Patients
Research Title: Evaluation of airway reactivity, allergy and inflammatory mediators in exhaled breath condensate in vitamin D resistant rickets.
- Trial name
- NCT01578824
- Testing
- Methacholine Challenge Test
- Where
- Israel
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Rambam Health Care Campus
Patients With Hypovitaminosis C and D, Vitamin Deficiencies
Vitamin Therapy in JGH Patients
There is a high prevalence of hypovitaminosis C and D in our hospital and other acute-care hospitals. Since the correction of these presumed deficiency states is simple, safe and inexpensive, their documented or suspected…
- Trial name
- NCT01630720
- Testing
- vitamin C or vitamin D
- Where
- Canada
- Volunteers
- 88 people
- Sponsor
- Jewish General Hospital
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