Clinical trials: Vitamin D Deficiency Disease
Vitamin D Deficiency, HIV
Vitamin D in HIV-Infected Patients on HAART
This is a research study to look at vitamin D deficiency (low levels) in men and women with HIV. As part of your regular medical care, you will be screened for vitamin D deficiency.
- Trial name
- NCT01250899
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 122 people
- Sponsor
- University of California, Los Angeles
Insulin Sensitivity
Effect of Vitamin D Replacement on Insulin Sensitivity
Healthy subjects with low Vitamin D levels will be randomly assigned to either Vitamin D replacement or placebo for a period of 8 weeks.
- Trial name
- NCT01268111
- Testing
- Ergocalciferols
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Texas Tech University Health Sciences Center
Vitamin D Deficiency, Immunosuppression
Helminth Infection During Pregnancy on Vitamin D Regulation: HELMVIT Study
Purpose: To examine whether helminth infection during pregnancy alters Vitamin-D-metabolism and reactivity of the child's immune system Hypothesis: Helminth infection during pregnancy is associated with altered Vitamin D levels…
- Trial name
- HELMVIT (NCT04324853)
- Testing
- Microscopy ( Urine filtration), UCAA test, qPCR,, Microscopy (Kato Katz, Coproculture, Harada Mori, MIF), qPCR,
- Where
- Gabon
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Centre de Recherche Médicale de Lambaréné
Vitamin D Deficiency
Challenges in Achieving Adequate Vitamin D Status in the Adult Population/ Part 2
The efficiency of different vitamin D formulations in treating suboptimal vitamin D status in adult population will be determined. It will provide insights into the influence of formulation on vitamin D absorption.
- Trial name
- VITAD/2 (NCT03810261)
- Testing
- Oil-based vitamin D, Water-based vitamin D, Vitamin D capsules
- Where
- Slovenia
- Volunteers
- 105 people, healthy volunteers welcome
- Sponsor
- Institute of Nutrition, Slovenia (Nutris)
Breast Cancer, Vitamin D Deficiency
Epidemiological Analysis of Vitamin D and Breast Cancer Risk in Saudi Arabian Women
This is an analysis of de-identified data collected from 240 Saudi Arabian women, 120 with breast cancer and 120 control women, to evalyate if vitamin D status is associated with breast cancer risk.
- Trial name
- NCT01817231
- Where
- United States
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University of Arizona
Vitamin D Deficiency
Preoperative Vitamin D Levels and Respiratory Complications of General Anesthesia
Vitamin D deficiency is a commonly observed health problem in the world. With a role in many chronic diseases and especially lung diseases, the importance of vitamin D deficiency in anesthesia management is increased.
- Trial name
- VitaminD (NCT03342651)
- Testing
- Vitamin D
- Volunteers
- 95 people, healthy volunteers welcome
- Sponsor
- Ordu University
Hypovitaminosis D
High Dose Preoperative Cholecalciferol Supplementation and Perioperative Vitamin D Status
A growing body of evidence suggests that robust postoperative immune function is associated with a lower risk of surgical site infections (SSIs).
- Trial name
- NCT01689779
- Testing
- 100,000 IU cholecalciferol
- Where
- United States
- Volunteers
- 60 people
- Sponsor
- Massachusetts General Hospital
HIV Infection
Vitamin D Absorption in HIV Infected Young Adults Being Treated With Tenofovir Containing cART
This is a 48 week randomized double-blind, placebo-controlled prospective cohort study of adolescents and young adults with HIV infection in the Adolescent Medicine Trials Network for HIV/AIDS Interventions (ATN) who are…
- Trial name
- NCT01751646
- Testing
- Vitamin D3 50,000 IU
- Where
- 17 sites in United States, Puerto Rico
- Volunteers
- 214 people
- Sponsor
- University of North Carolina, Chapel Hill
Vitamin D Deficiency
The Effect of Vitamin D3 Therapy on Vitamin D Status in Pregnant Women With Vitamin D Deficient and Insufficient
This study is a randomized controlled trial which compares the effect of vitamin D3 therapy 5,000 IU daily and 50,000 IU on 25(OH)D and 1,25(OH)2D, VDBP, and 24,25(OH)2D maternal serum levels in pregnant women with vitamin D…
- Trial name
- NCT06054919
- Testing
- Cholecalciferol
- Where
- Indonesia
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- Universitas Indonesia
Vitamin D Deficiency, Sarcopenia
The Effectiveness of Vitamin D Supplementation in Patients With End-stage Knee Osteoarthritis
Osteoarthritis (OA) knee is one of the commonest chronic degenerative conditions. It causes disability in elderlies due to pain and stiffness.
- Conditions
- Vitamin D Deficiency, Sarcopenia, Knee Osteoarthritis
- Trial name
- NCT05981534
- Testing
- Vitamin D
- Where
- Hong Kong
- Volunteers
- 56 people
- Sponsor
- Chinese University of Hong Kong
Vitamin D Deficiency
Vitamin D Levels in Residents in Medicine
the study aims to messure the vitamin D levels in medical staff in the hospital. The physicians in the course of their internship who work indoors and work many night shifts have limited sun exposure in all seasons.
- Trial name
- NCT01118806
- Where
- Israel
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- Meir Medical Center
Vitamin D Deficiency
Vitamin D Supplementation in Children
Prevalence of vitamin D deficiency in children in the northern country during winter season is very high (up to 90%). Vitamin D supplementation at a dose 600 -1000 IU/d is recommended in Polish children from September till April.
- Trial name
- MeltD (NCT03402698)
- Testing
- cholecalciferol
- Where
- Poland
- Volunteers
- 73 people, healthy volunteers welcome
- Sponsor
- Children's Memorial Health Institute, Poland
Polycystic Ovary Syndrome, Insulin Resistance
Endocrine and Menstrual Disturbances in Women With Polycystic Ovary Syndrome (PCOS)
Polycystic ovary syndrome (PCOS) is a common endocrine disorder in reproductive age women, which causes disordered follicle growth and ovulation resulting in infertility.
- Conditions
- Polycystic Ovary Syndrome, Insulin Resistance, Vitamin D Deficiency, Obesity
- Trial name
- EMDPCOS (NCT03652987)
- Where
- United Kingdom
- Volunteers
- 300 people
- Sponsor
- St George's, University of London
Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in adults with Vitamin D Deficiency
- Trial name
- NCT03233295
- Testing
- Vitamin D3 B.O.N. Injection
- Volunteers
- 108 people
- Sponsor
- Kwang Dong Pharmaceutical co., ltd.
Hypovitaminosis D
Cholecalciferol Supplementation for Sepsis in the ICU
Sepsis in a clinical entity that occurs in patients with serious infections. Though the severity of illness may vary, every year, approximately 1.6 million Americans are treated for sepsis.
- Trial name
- CSI (NCT01896544)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 30 people
- Sponsor
- Massachusetts General Hospital
Obesity, Bariatric Surgery
Effectiveness of a Modified Cost-Effective Dietary Plan in Promoting Weight Loss and Preservation of Lean Body Mass in Patients After Bariatric Surgery
This study will see if a low-cost dietary plan, based on the standard dietary guidelines of the American Society for Metabolic and Bariatric Surgery (ASMBS) and using locally available foods, can help patients lose weight and…
- Conditions
- Obesity, Bariatric Surgery, Nutritional Status, Body Composition
- Trial name
- NCT07111767
- Testing
- Low-Cost Post-Bariatric Diet, Standard High-cost Post-Bariatric Diet
- Where
- Pakistan
- Volunteers
- 122 people
- Sponsor
- Khyber Teaching Hospital
Vitamin D Deficiency
'Palliative-D' Vitamin D to Palliative Cancer Patients
To test the hypothesis that vitamin D treatment during 12 weeks to palliative cancer patients can decrease opioid consumption, fatigue and infectious burden and increase quality of life.
- Trial name
- Palliative-D (NCT03038516)
- Testing
- Cholecalciferol
- Where
- 3 sites in Sweden
- Volunteers
- 244 people
- Sponsor
- Region Stockholm
Iron Deficiency, Anemia; Deficiency, Nutritional, With Poor Iron Absorption
A Study to Investigate the Effect of Vitamin D3 Supplementation on Iron Status in Iron Deficient Women
Iron is one of the most vital elements in humans as it plays a role in physiological functions such as transferring and storing oxygen, transporting electrons and catalysing numerous reactions, from oxidative metabolism to…
- Conditions
- Iron Deficiency, Anemia; Deficiency, Nutritional, With Poor Iron Absorption, Vitamin D Deficiency
- Trial name
- NCT02714361
- Testing
- Vitamin D3 supplement
- Where
- United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Chester
Vitamin D Deficiency
Efficacy of Daily Vitamin D3 Supplementation in Normal Weight Adolescents
The study is designed to evaluate the increment of serum 25 (OH) vitamin D levels in normal weight adolescents following a 12-week supplementation with Vitamin D3 2000 IU/day.
- Trial name
- NCT01058720
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Mayo Clinic
Obesity, Vitamin D Deficiency
Vitamin D Supplementation Reduces Renin-Angiotensin System Activity in Obesity
Hypothesis: Vitamin D supplementation lower renin-angiotensin system activity in obesity. Specific Aim: To investigate whether Vitamin D supplementation in obesity improves the vascular sensitivity to angiotensin II.
- Conditions
- Obesity, Vitamin D Deficiency, Hypertension
- Trial name
- NCT01068418
- Testing
- Vitamin D (cholecalciferol)
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Brigham and Women's Hospital