Clinical trials: D Vitamin Deficiency Patients
Implant Stability With Vitamin D Deficiency
Stability of Dental Implants Placed in Patients With Vitamin D Deficiency Using Sequential Drilling Versus a New One Single Drilling Design
Vitamin D considers as the most potent effect on calcium level in blood it was found that vitamin D target mainly bone tissue intestine and kidney for calcium absorption In bone, vitamin D stimulates mainly the activity of…
- Trial name
- NCT03695562
- Testing
- sequential drilling technique
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Stroke, Oral Disease
Oral Health and Vitamin D in Stroke Patients
Stroke is a common, serious and restrictive global health problem. Restricting the activities of daily living of stroke patients impairs patients' ability to pay attention to oral hygiene.
- Conditions
- Stroke, Oral Disease, D Vitamin Deficiency
- Trial name
- NCT05418335
- Testing
- Clinical examination, functional status evaluation
- Where
- Turkey (Türkiye)
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- Abant Izzet Baysal University
Vitamin D Deficiency, Sarcopenia
Vitamin D Deficiency and Body Composition in the Patients With Hemophilia
Hemophilia is associated with osteoporosis and increased prevalence of low bone mineral density (BMD). Many clinical risk factors have been reported, such as hemophilic arthropathy, reduced physical activity, decreased sun…
- Conditions
- Vitamin D Deficiency, Sarcopenia, Osteoporosis, Body Composition
- Trial name
- NCT05517070
- Where
- Taiwan
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Tsung-Ying Li
Dental Implant, Dental Implant Failed
Effect of Systemic Vitamin D on Dental Implant Osseointegration
The primary goal for any oral implantologist is to obtain satisfactory healing and long-term treatment success. Osseointegration is the key to dental implant success8 and is required to achieve direct structural and functional…
- Conditions
- Dental Implant, Dental Implant Failed, Vitamin D Deficiency
- Trial name
- VIDOS (NCT07684404)
- Testing
- Vit D
- Where
- Egypt
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Chronic Kidney Disease (Stage 3-4), Chronic Kidney Disease Mineral and Bone Disorder
Phosphate Assessment in Chronic Kidney Disease Patients Study
The proposed pilot feeding study aims to explore novel pathways in phosphate metabolism and identify new biomarkers, as well as to develop a compound index for assessing phosphate overload with high validity and reliability.
- Trial name
- PACK (NCT07368946)
- Testing
- Dietary Phosphorus Intake
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Texas Southwestern Medical Center
Hypovitaminosis D, Cardiovascular Diseases
Vitamin D Supplementation on in Major Orthopedic Surgery
Prospective, monocentric study in open, aimed at evaluating the effects of supplementation with calcifediol on left ventricular function parameters in cardiopathic subjects undergoing major orthopedic surgery.
- Trial name
- NCT03403933
- Testing
- Didrogyl
- Where
- Italy
- Volunteers
- 74 people, healthy volunteers welcome
- Sponsor
- I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Vitamin D Deficiency
Empirical Comperative Study Of Variation Blood Level Antibody Vitamin D at Different Groups Of Patients Compared Healthy Peoples
The aim of this study is to detect antibodies to vitamin D in the serum at Different Groups of patients and healthy volunteer. A second goal is to find the relation between Vitamin D Antibody and Vitamin D level.
- Trial name
- NCT02795234
- Testing
- Blood samples
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Secondary Hyperparathyroidism
Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism
The purpose of this study is to determine if a reduction in the enzyme 1-hydroxylase, which activates Vitamin D, is the cause of overactivity of the parathyroid glands (called secondary hyperparathyroidism - normal blood calcium…
- Trial name
- 1hydroxylase (NCT00754442)
- Testing
- Teriparatide
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Pituitary ACTH Hypersecretion, Acromegaly
Vitamin D Metabolism in Patients With Endocrine Disorders
This prospective controlled interventional study aims to reveal the diversity of vitamin D metabolism in patients with certain endocrine disorders (Cushing's disease, acromegaly, primary hyperparathyroidism, diabetes mellitus…
- Conditions
- Pituitary ACTH Hypersecretion, Acromegaly, Diabetes Mellitus, Type 1, Primary Hyperparathyroidism
- Trial name
- NCT04844164
- Testing
- Cholecalciferol 15000 UNT/ML Oral Solution
- Where
- Russia
- Volunteers
- 261 people, healthy volunteers welcome
- Sponsor
- Endocrinology Research Centre, Moscow
Chronic Kidney Disease, Renal Osteodystrophy
Serum Sclerostin Levels, Cardiovascular Parameters and Carpal Tunnel Syndrome in Maintenance Hemodialysis Patients
Sclerostin, the product of the SOST gene, located on chromosome 17, locus q11.2 in humans, was originally believed to be a non-classical Bone morphogenetic protein (BMP) antagonist.Sclerostin was recently identified as a…
- Conditions
- Chronic Kidney Disease, Renal Osteodystrophy, Left Ventricular Hypertrophy
- Trial name
- NCT01382966
- Where
- Turkey (Türkiye)
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- RFM Renal Treatment Services
Vitamin D Deficiency, Periodontitis
25-Hydroxyvitamin D Levels in Patients With Periodontitis (Stage III)
Periodontitis; is an inflammatory disease of tissues characterized by bone destruction around the teeth. Vitamin D plays an important role in several inflammatory diseases by promoting the expression of inflammatory cytokines…
- Trial name
- NCT05343273
- Testing
- taking a blood sample
- Where
- Turkey (Türkiye)
- Volunteers
- 83 people, healthy volunteers welcome
- Sponsor
- Ataturk University
HIV Seropositive
Study of Vitamin D Supplementation to Male HIV Sero-positive Patients
The investigators want to investigate if HIV sero-positive males benefit from vitamin D supplementation. The study runs in 16 weeks and the participants are treated with one of three placebo controlled regimes (tablets): 1.
- Trial name
- NCT00990678
- Testing
- Rocaltrol, Vitamin D, Calcium
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Vitamin D Deficiency, Primary Open-angle Glaucoma
Comparison of Vitamin D Status and Vitamin D Receptor Polymorphisms in Patients With High Myopia and Primary Open-angle Glaucoma
Vitamin D deficiency is known to be significantly associated with high myopia. This study investigated the vitamin D status in patients with high myopia and primary open-angle glaucoma, in order to understand the relationship…
- Conditions
- Vitamin D Deficiency, Primary Open-angle Glaucoma, High Myopia, Vitamin D Receptor Polymorphisms
- Trial name
- NCT03021629
- Testing
- Serum levels of 1a, 25-Dihydroxyvitamin D3 were measured by an enzyme-linked immuno-absorbent assay
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Lv Yingjuan
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
Tibial Fractures, Vitamin D Deficiency
Vitamin D Supplementation and Tibia Fracture. Does it Improve Healing Rate?
This study evaluates the effect of Vitamin D3 supplementation in healing rate of tibia fractures in adult patients with low vitamin D.
- Conditions
- Tibial Fractures, Vitamin D Deficiency, Fracture Healing
- Trial name
- ViDco (NCT03232216)
- Testing
- Vitamin D3.
- Where
- Chile
- Volunteers
- 682 people, healthy volunteers welcome
- Sponsor
- Hospital del Trabajador de Santiago
Diabetes Type 2, Diabetic Neuropathies
High vs Low Dose Vitamin D in Patients With Diabetic Peripheral Neuropathy
Aim. To assess the effect of different doses of vitamin D supplementation on peripheral neuropathy in patients with type 2 diabetes mellitus (T2DM).
- Conditions
- Diabetes Type 2, Diabetic Neuropathies, Vitamin D Deficiency
- Trial name
- NCT04377399
- Testing
- Vitamin D
- Where
- Russia
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
Vitamin D Deficiency, Chemotherapy Effect
Vitamin D Can Increase Pathological Response of the Breast Cancer Patients Treated With Neoadjuvant Therapy
The aim of the study is to evaluate the relationship between the vitamin D replacement and pathological response in patients undergoing neoadjuvant therapy according to different molecular sub types.
- Conditions
- Vitamin D Deficiency, Chemotherapy Effect, Pathology
- Trial name
- NCT03986268
- Testing
- Vit D
- Where
- Turkey (Türkiye)
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Florence Nightingale Hospital, Istanbul
Crohn's Disease, Vitamin D Deficiency
Exploring the Effects of Vitamin D Supplementation on the Chronic Course of Patients With Crohn's Disease With Vitamin D Deficiency
Aims:Prospectively observe the effects of Vitamin D drops supplementation on the chronic course of Crohn's disease patients, analyze whether the effect of Vitamin D drops on CD patients is affected by factors such as disease…
- Conditions
- Crohn's Disease, Vitamin D Deficiency, Vitamin D Supplement
- Trial name
- NCT04308850
- Testing
- Vitamin D drops
- Where
- China
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Second Affiliated Hospital of Wenzhou Medical University
Obesity, Vitamin D Deficiency
Efficacy of Vitamin D Supplementation in Bariatric Surgery Patients
As the use of bariatric surgery for treatment of extreme obesity adults continues to rise, clinicians must be aware of pre-existing nutritional deficiencies in overweight and obese patients.
- Trial name
- NCT01385098
- Testing
- Vitamin D3 and Calcium
- Where
- United States
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Vadim Sherman, MD
Chronic Kidney Disease, Vitamin D Deficiency
Vitamin D, Chronic Kidney Disease (CKD) and the Microcirculation
Overall research aims: This study will examine the effect of vitamin D supplementation on the function of the endothelium and microcirculation of patients with chronic kidney disease and vitamin D deficiency.
- Trial name
- NCT00882401
- Testing
- Ergocalciferol (Vitamin D)
- Where
- United Kingdom
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- Barts & The London NHS Trust