Clinical trials: Vitamin Deficiencies
Osteoporosis, Vitamin D Deficiency
A Study of MK0217A and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227)
The purpose of this study is to test the safety, tolerability, and effectiveness of an investigational drug and dietary supplement to reduce the risk of vitamin D insufficiency and deficiency during treatment of osteoporosis in…
- Trial name
- NCT00092079
- Testing
- MK0217A, alendronate sodium (+) cholecalciferol / Duration of Treatment: 24 weeks
- Volunteers
- 652 people
- Sponsor
- Merck Sharp & Dohme LLC
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
Hyperhomocysteinemia
Effects of Supplementation of Compound Nutrients on Plasma Homocysteine in Chinese Adults With Hyperhomocysteinemia
The purpose of this study is to determine whether supplementation of compound nutrients,including folic acid, vitamin B6, vitamin B12, betaine and zinc, will decrease the level of plasma homocysteine in Chinese adults with…
- Trial name
- NCT03720249
- Testing
- supplementation of compound nutrients
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Huilian Zhu
Vitamin D Deficiency, Scleroderma, Systemic
Immunomodulating Effects of Supplementation With 25-OH Vitamin D
Introduction. The thickening fibrotic of the skin in systemic sclerosis (SSc) could reduce endogenous availability of Vitamin D by sun exposition.
- Trial name
- SCLERODERMA (NCT04822038)
- Testing
- Vitamin D3, Dietary recommendations
- Where
- Mexico
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Coordinación de Investigación en Salud, Mexico
Ulcerative Colitis, Vitamin D Deficiency
Observation of the Effect of Vitamin D Supplementation on Chronic Course of Patients With Ulcerative Colitis Based on Vitamin D Receptor Fok I Gene Polymorphism
Aims:Prospectively observe the effects of Vitamin D drops supplementation on the chronic course of ulcerative colitis patients, analyze whether the effect of Vitamin D drops on UC patients is affected by factors such as disease…
- Conditions
- Ulcerative Colitis, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04309058
- Testing
- Vitamin D drops
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Vitamin d Deficiency
Effects of Vitamin D on Cardiovascular Health in Black Women
The goal of this clinical trial is to understand the effects of oral vitamin D3 supplementation on various cardiovascular risk factors in generally healthy, young adult black women who are vitamin D deficient or insufficient at…
- Trial name
- NCT05656742
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- University of Delaware
Heart Failure, Iron-deficiency
Beneficial Effects of Vitamin D Combined With Oral Iron Supplementation in Patients With Chronic Heart Failure and Iron Deficiency
The goal of this randomized, controlled, open-label, interventional study is to evaluate whether, in patients with heart failure (HF) and iron deficiency (ID), the administration of vitamin D in combination with sucrosomial iron…
- Conditions
- Heart Failure, Iron-deficiency, Heart Failure, Systolic, Heart Failure NYHA Class II
- Trial name
- VICTORID-HF (NCT05702970)
- Testing
- Sucrosomial iron, Vitamin D, Ferric Carboxymaltose 50 MG/ML
- Volunteers
- 258 people
- Sponsor
- University of Padova
Phosphate Diabetes, X-linked Hypophosphatemia
Phosphorus-31 Spectroscopy in Phosphate Diabetes
Phosphate diabetes is defined by urinary phosphate wasting due to impaired tubular reabsorption. It can be classified based on either a genetic or acquired origin.
- Trial name
- Phos-ATP (NCT06921720)
- Testing
- intra-muscular ATP values in phosphate diabetes, intra-muscular phosphate values in phosphate diabetes
- Where
- 2 sites in France
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon
Hip Fracture, Vitamin D Deficiency
Vitamin D Levels in Frail Elderly Patients With a Hip Fracture
The purpose of this study is to assess whether all frail elderly admitted with hip fracture has a vitamin D deficiency, and if s-25(OH)D deficiency increases the risk of hip fracture in frail elderly.
- Trial name
- NCT01816711
- Where
- Denmark
- Volunteers
- 447 people
- Sponsor
- University of Aarhus
Liver Transplant; Complications, Vitamin D Deficiency
Relationship Between Serum Vitamin D and Outcomes of Liver Transplantation in Cirrhotic Patients Undergoing Liver Transplantation and Effects of Vitamin D Supplementation in Post-transplant Period
The study population is patients with liver cirrhosis undergoing liver transplantation; In this study, the sample will be selected from cirrhosis patients undergoing liver transplantation in Taleghani (Tehran), Imam Khomeini…
- Trial name
- NCT05568836
- Testing
- vitamin D supplementation, control
- Volunteers
- 42 people
- Sponsor
- National Nutrition and Food Technology Institute
X-linked Hypophosphatemia, Hypophosphatemic Rickets
X-linked Hypophosphatemia Disease Monitoring Program
The objectives of this observational study are to characterize XLH disease presentation and progression and to assess long-term effectiveness and safety of burosumab.
- Trial name
- NCT03651505
- Testing
- No intervention
- Where
- 38 sites in United States, Argentina and 4 more
- Volunteers
- 782 people
- Sponsor
- Ultragenyx Pharmaceutical Inc
Vitamin D Deficiency, Fat Malabsorption
25-Hydroxyvitamin D Pharmacokinetic Study
To evaluate the pharmacokinetic parameters of orally administered 25-hydroxyvitamin D3 [25(OH)D3] and vitamin D3 from the corresponding serum concentration-time curves in healthy adults and adults with a history of intestinal…
- Trial name
- NCT03401541
- Testing
- Calcifediol, Calciferol
- Where
- United States
- Volunteers
- 16 people, healthy volunteers welcome
- Sponsor
- Boston University
Abortion, Habitual, Nutritional Status
Nutritional Deficiencies About Recurrent Miscarriage
The study plans to recruit patients with recurrent miscarriage and detect their niacin, thiamine, vitamin A, vitamin B6, vitamin B12, vitamin D levels in plasma, evaluating if some lack exists.
- Trial name
- NCT04064931
- Testing
- Detection of niacin and other vitamins in plasma
- Where
- China
- Volunteers
- 1,000 people, healthy volunteers welcome
- Sponsor
- Peking Union Medical College Hospital
Vitamin D Status
Vitamin D Supplementation and Immunity/Physical Performance
The purpose of this study is to examine the effect of vitamin D supplementation on vitamin D status, immunity and physical performance.
- Trial name
- NCT03132103
- Testing
- Oral Vitamin D3, Solar simulated radiation (SSR)
- Where
- United Kingdom
- Volunteers
- 260 people, healthy volunteers welcome
- Sponsor
- Bangor University
AKI, CKD
Genetics in the Progression of Nephropathies
This study evaluates the role of genetic in the development and progression of different nephropaties with particular attention to: AKI CKD Hypertension ADPKD CKD-MBD Patients with decompensated heart failure undergoing either…
- Conditions
- AKI, CKD, Ckd-Mbd, CKD (Chronic Kidney Disease) Stage 5D
- Trial name
- NCT06416761
- Testing
- genetic polymorphisms
- Where
- Italy
- Volunteers
- 10,000 people
- Sponsor
- Ospedale San Raffaele
Vitamin D Deficiency
Familial Clustering of Vitamin D Deficiency Via Shared Environment: The Korean National Health And Nutrition Examination Survey 2008-2012
Vitamin D deficiency is a modifiable risk factor for poor bone health. Familial correlation of serum 25-hydroxyvitamin D concentration (25(OH)D) was reported in twin- or family-based studies, mostly from Caucasian…
- Trial name
- NCT03349879
- Where
- South Korea
- Volunteers
- 28,551 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Vitamin D Deficiency
Vitamin D Raising and Maintaining Blood Serum 25(OH)D3 Levels
Analyze the amount of change in blood serum Vitamin D levels in patients of 3 different dosing groups and how their levels change over a 3 month period of time.
- Trial name
- VitD (NCT03099759)
- Testing
- Vitamin D
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- The Cleveland Clinic
Sickle Cell Disease, Vitamin D Deficiency
High Dose Vitamin D Supplementation in Children With Sickle Cell Disease
Suboptimal vitamin D status is well reported in sickle cell disease (SCD) patients and associated with a negative impact on health-related quality of life (HRQL).
- Conditions
- Sickle Cell Disease, Vitamin D Deficiency, Health Related Quality of Life, Hand Grip Strength
- Trial name
- NCT06274203
- Testing
- Vitamin D3
- Where
- Egypt
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Zagazig University
Menopause Related Conditions, Vitamin D Deficiency
Vitamin D and Microvascular Function in Postmenopausal Women
Many observational studies have demonstrated links between serum levels of 25-hydroxyvitamin D [25(OH)D] and cardiovascular risk (CVR) factors. Microvascular dysfunction relates not only to CVR but also to metabolic disease.
- Conditions
- Menopause Related Conditions, Vitamin D Deficiency, Cardiovascular Diseases
- Trial name
- NCT05408273
- Testing
- Blood samples and Microvascular function assessment evaluated through laser-Doppler flowmetry by the LASER speckle contrast analysis (LASCA) device
- Where
- Brazil
- Volunteers
- 88 people, healthy volunteers welcome
- Sponsor
- Rio de Janeiro State University
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
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