Clinical trials: Cholecalciferol
Acne Vulgaris
Vitamin D Supplementation in Acne
The goal of this clinical trial is to compare in acne vulgaris patients. The main question it aims to answer is: To assess the therapeutic benefit of vitamin D supplement in acne vulgaris treatment, following a 2-month treatment…
- Trial name
- NCT06141330
- Testing
- D Max Drops, Azithromycin 250 milligram Oral Capsule, Adapalene
- Where
- Pakistan
- Volunteers
- 58 people, healthy volunteers welcome
- Sponsor
- HITEC-Institute of Medical Sciences
Keratoconus
Thyroid Gland Dysfunction and Vitamin D Polymorphism in Keratoconus
This prospective study the thyroid gland dysfunction and vitamin D receptor polymorphism in keratoconus patients
- Trial name
- NCT05073601
- Testing
- ELISA,DNA extraction
- Where
- Egypt
- Volunteers
- 262 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Autism
Influence of Vitamin D Deficiency on the Development of Autism
The investigators wish to study the effect of Vitamin D on the development of autism in children. The investigators will also investigate the environmental and genetic influences on the level of Vitamin D in children with autism.
- Trial name
- NCT02222311
- Testing
- Blood Samples
- Where
- Israel
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Hillel Yaffe Medical Center
Epilepsy, Magnesium Deficiency
Magnesium as a Mediator of Bone and Vitamin D Metabolism in Patients on Antiepileptic Drug Therapy
The objective of this study is to determine the role of magnesium on bone and vitamin D metabolism in patients receiving anti-epileptic medications.
- Conditions
- Epilepsy, Magnesium Deficiency, Vitamin D Deficiency
- Trial name
- NCT03471481
- Testing
- No Intervention. Study is Cross Sectional in nature
- Where
- 2 sites in United States
- Volunteers
- 7 people
- Sponsor
- Drexel University
Hypocalcemia
Preoperative Vitamin D for Post-thyroidectomy Hypocalcemia
The purpose of this study is to determine if pre-operative vitamin D supplementation lowers the incidence of post-operative transient or permanent hypoparathyroidism in patients undergoing total thyroidectomy.
- Trial name
- NCT01609439
- Testing
- Vitamin D
- Where
- Canada
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Alberta
Relapsing-Remitting Multiple Sclerosis
Supplementation of VigantOL® Oil Versus Placebo as Add-on in Patients With Relapsing Remitting Multiple Sclerosis Receiving Rebif® Treatment
The drug being tested is called VigantOL® oil - a very effective form of Vitamin D hormone supplement (cholecalciferol). Low levels of Vitamin D have been described to be associated with a higher risk of developing Multiple…
- Trial name
- SOLAR (NCT01285401)
- Testing
- VigantOL oil plus interferon beta-1a (Rebif), Interferon beta-1a (Rebif®) alone
- Where
- 38 sites in Austria, Denmark and 10 more
- Volunteers
- 260 people
- Sponsor
- Merck KGaA, Darmstadt, Germany
Adult Solid Neoplasm
Calcitriol, Cisplatin, and Gemcitabine Hydrochloride in Treating Patients With Advanced Solid Tumors That Cannot Be Removed by Surgery
This phase I trial studies the side effects and best dose of calcitriol when given with cisplatin and gemcitabine hydrochloride in treating patients with advanced solid tumors that cannot be removed by surgery.
- Trial name
- NCT01093092
- Testing
- Calcitriol, Cisplatin, Gemcitabine Hydrochloride
- Where
- 2 sites in United States
- Volunteers
- 14 people
- Sponsor
- Roswell Park Cancer Institute
Hip Fracture
Nutritional Risk Factors for Hip Fracture: a Case Control Study
Low Body Mass Index (BMI) is a risk factor for hip fracture, but it is unknown if it is the low BMI per se that increases risk of hip fracture or if specific micro-nutrients contribute.
- Trial name
- NCT01738776
- Where
- Norway
- Volunteers
- 184 people, healthy volunteers welcome
- Sponsor
- Oslo University Hospital
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
Diabetes Mellitus, Type 2
Multiprofessional Approach in Diabetes Mellitus
OBJECTIVE: to verify the effectiveness of adopting the practice of educational groups in primary care and the multiprofessional role in the control of diabetes mellitus in adults.
- Trial name
- NCT04958980
- Testing
- Specific and educational guidelines on care for pathology (diabetes mellitus) according to each profession involved in the research
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Leonardo Paroche de Matos
Chronic Kidney Disease, Secondary Hyperparathyroidism
Evaluation of the Effectiveness of Paricalcitol Versus Cinacalcet With Low-Dose Vitamin D
Evaluates the effectiveness of on-label Paricalcitol versus Cinacalcet with Low-Dose Vitamin D.
- Conditions
- Chronic Kidney Disease, Secondary Hyperparathyroidism, Hemodialysis
- Trial name
- IMPACT SHPT (NCT00977080)
- Testing
- Paricalcitol, Cinacalcet
- Where
- 83 sites in United States, Czechia and 10 more
- Volunteers
- 272 people
- Sponsor
- Abbott
Polycystic Ovary Syndrome, Vitamin D Deficiency
30000 IU Per Week Vitamin D Treatment in PCOS Patients
This is a human, II/b phase, multicentre, randomised, double blind, placebo-controlled study to assess the safety and the efficacy of a weekly administered dose of 30,000 IU vitamin D (colecalciferol) in deficient patients…
- Trial name
- NCT04840238
- Testing
- Cholecalciferol
- Where
- 8 sites in Hungary
- Volunteers
- 115 people
- Sponsor
- Semmelweis University
SLE
SLE Severity Linked to Vitamin D Via Treg Cells in Pediatric Patients
SLE has been characterized by dysfunctional or decreased numbers of Treg cells because one of it function is to prevent autoimmunity.
- Trial name
- NCT07069348
- Testing
- No intervention
- Where
- Indonesia
- Volunteers
- 32 people
- Sponsor
- Wisnu Barlianto
Male Infertility
Males, Antioxidants, and Infertility Trial
The objective of the Males, Antioxidants, and Infertility (MOXI) Trial is to examine whether treatment of infertile males with an antioxidant formulation improves male fertility.
- Trial name
- MOXI (NCT02421887)
- Testing
- Antioxidant Supplement
- Where
- 10 sites in United States
- Volunteers
- 171 people
- Sponsor
- Yale University
Elderly, Frail
Randomized Study Of Exercise And Vitamin D In Frail Elderly Subjects
The study will explore multiple mobility function tests as well as functional and neuropsychological tests in elderly subjects at risk for falls and disability, before and after 4-month exercise and/or Vitamin D intervention.
- Trial name
- NCT00249704
- Testing
- Vitamin D + Exercise
- Where
- 4 sites in United States
- Volunteers
- 64 people
- Sponsor
- Pfizer
Thyroid Diseases
Systematic Administration of Calcium and Vitamin D After Thyroidectomy
Transient hypocalcaemia consist the most common postoperative complication after thyroidectomy (10-45%). It may be mild and subclinical or cause mild or severe symptoms and may lead to longer hospital stay as well as in…
- Trial name
- NCT03777033
- Testing
- Prophylactic protocol with Ca and Vit D
- Where
- Greece
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- Hellenic Red Cross Hospital
Vitamin D Deficiency
Vitamin D Status in Pediatric Asthma
The purpose of this study is to evaluate level of vitamin D in pediatric asthma and relationship between vitamin D and level control of asthma.
- Trial name
- NCT01432678
- Where
- Thailand
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Mahidol University
Quantification of 25-(OH)D in Physiological Condition
Comparison of Maglumi X3 SNIBE With Other Analytical Methods in Laboratory Medicine for 25-(OH)D Quantification
The aim of this study is to assess the agreement among the results obtained using the Maglumi X3 SNIBE method and other analytical methods for the measurement of 25-(OH) vitamin D.
- Trial name
- NCT07337499
- Testing
- blood sampling
- Where
- Italy
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio
Polycystic Ovary Syndrome
The Phenotype and Clinical Intervention of High BCAA Type of PCOS
Polycystic ovary syndrome is one of the main diseases leading to infertility in women of childbearing age. In addition to endocrine and reproductive dysfunction, it is often accompanied by significant metabolic abnormalities…
- Trial name
- BCAAPCOS (NCT06192147)
- Testing
- protein restricted diet combined with vitamin D intervention
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Vitamin D Deficiency, Stem Cell Transplant Complications
A Randomized Phase IV Control Trial of Single High Dose Oral Vitamin D3 in Pediatric Patients Undergoing HSCT
Research has suggested that children with sufficient vitamin D levels undergoing hematopoietic stem cell transplant (HSCT) have improved outcomes, including lower incidences of infection and graft-versus-host disease (GVHD), as…
- Conditions
- Vitamin D Deficiency, Stem Cell Transplant Complications, Pediatric Cancer, Blood Disorder
- Trial name
- NCT03176849
- Testing
- Vitamin D3, Standard Vitamin D3 Supplementation
- Where
- United States
- Volunteers
- 49 people
- Sponsor
- Phoenix Children's Hospital
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