Clinical trials: Cholecalciferol
Ischemic Stroke
Impact of Vitamin D on Acute Ischemic Stroke Prognosis
This is a registry for all patients admitted to hospital settings with Ischemic stroke in Mansoura University Hospital. The registry will capture patients' data, investigations and vitamin D level on admission.
- Trial name
- IVASTO (NCT03819452)
- Testing
- Vitamin D Level
- Where
- 2 sites in Egypt, Switzerland
- Volunteers
- 59 people
- Sponsor
- Abha International Private Hospital
IBD and Renal Involement, Chronic Kidney Disease
Renal Dysfunction in Patients With Inflammatory Bowel Disease and the General Population (NEPHRO-IBD)
The NEPHRO-IBD study is a multicenter prospective observational study designed to evaluate the prevalence of renal dysfunction and renal complications in adult patients with inflammatory bowel disease (IBD) compared with…
- Conditions
- IBD and Renal Involement, Chronic Kidney Disease, Inflamatory Bowel Disease (Crohn's and Ulcerative Colitis)
- Trial name
- NEPHRO-IBD (NCT07593352)
- Testing
- Prospective assessment of the prevalence of kidney disease and/or renal complications in patients with IBD/the general population based on routine laboratory test and abdominal ultrasound.
- Where
- Poland
- Volunteers
- 6,000 people, healthy volunteers welcome
- Sponsor
- Państwowy Instytut Medyczny Ministerstwa Spraw Wewnętrznych i Administracji
Vitamin D Deficiency, Preterm Infants
Multi-dose Vitamin D Supplementation in Preterm Infants
Preterm newborns are born with lower vitamin D stores. Although vitamin D supplementation is recommended there is no consensus regarding the adequate dose of supplementation for preterm infants.
- Trial name
- NCT02941185
- Testing
- Devit-3 Oral Drop
- Where
- Turkey (Türkiye)
- Volunteers
- 121 people
- Sponsor
- Zekai Tahir Burak Women's Health Research and Education Hospital
Known or Suspected Focal Liver Lesions, Severe Renal Impairment
Safety and Diagnostic Efficacy of Mangoral in Participants With Focal Liver Lesions and Reduced Kidney Function
The overall objective of this study is to evaluate the safety and diagnostic efficacy of Mangoral in liver MRI in participants with known or suspected focal liver lesions and severe renal impairment.
- Trial name
- SPARKLE (NCT04119843)
- Testing
- Mangoral
- Where
- 60 sites in United States, Argentina and 8 more
- Volunteers
- 87 people
- Sponsor
- Ascelia Pharma AB
Leukemia, Myelodysplastic Syndromes
Cholecalciferol in Treating Patients With Myelodysplastic Syndrome
RATIONALE: Cholecalciferol (vitamin D) may improve quality of life by increasing blood counts, decreasing fatigue, and improving other symptoms of myelodysplastic syndrome.
- Conditions
- Leukemia, Myelodysplastic Syndromes, Myelodysplastic/Myeloproliferative Neoplasms
- Trial name
- NCT00068276
- Testing
- cholecalciferol
- Where
- United States
- Sponsor
- Wake Forest University Health Sciences
COVID-19
VITACOV: Vitamin D Polymorphisms and Severity of COVID-19 Infection
Vitamin D deficiency has been linked to hypertension, autoimmune, infectious and cardiovascular diseases which are risk factors for COVID-19.
- Trial name
- VITACOV (NCT04370808)
- Testing
- Exposure
- Where
- 3 sites in Portugal
- Volunteers
- 517 people
- Sponsor
- University of Lisbon
Iron Deficiency, Iron Deficiency Anemia
Brain and Behavior Depending on Timing of Iron Deficiency in Human Infants
It is common in many populations that babies develop iron deficiency or iron deficiency anemia (that is, too few healthy red blood cells due to lack of iron).
- Trial name
- NCT00642863
- Testing
- Ferrous Sulfate (liquid) + vitamins A and D, vitamins A and D, Ferrous sulfate (liquid)
- Where
- China
- Volunteers
- 1,614 people
- Sponsor
- Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
End Stage Renal Disease
Effect of Vitamin K 2 on Vascular Calcification in Hemodialysis Patients
The aim of this study is to assess the effect of supplementation of vitamin K2 (menaquinone, MK-7) and cholecalciferol (inactive vitamin D) on circulating levels of calcification regulators and to assess their safety in pediatric…
- Trial name
- NCT04145492
- Testing
- Vitamin K2, Cholecalciferol (inactive vitamin D), Vitamin K2 and Cholecalciferol
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- Ain Shams University
Fetal Growth Restriction
Metals and in Fetal Growth Restriction
Introduction: Intrauterine fetal growth restriction (FGR) is a condition in which the fetus does not realize its growth potential in the uterus.
- Trial name
- FGR&metals (NCT04394611)
- Testing
- Obstetric ultrasound- doppler examination
- Where
- Turkey (Türkiye)
- Volunteers
- 55 people, healthy volunteers welcome
- Sponsor
- Cengiz Gokcek Women's and Children's Hospital
Hyperparathyroidism, Kidney Transplantation Recipients
Parathyroidectomy After Kidney Transplantation
This study aims to clarify whether surgical treatment of persistent hyperparathyroidism after kidney transplantation offers clinically meaningful benefits compared with a conservative treatment strategy.
- Trial name
- Para-KiT (NCT07415421)
- Testing
- Subtotal Parathyroidectomy, Conservative Management
- Where
- Denmark
- Volunteers
- 85 people
- Sponsor
- Aarhus University Hospital
Hypovitaminosis D
Prospective Monocentric Registry of Patients Undergoing Vitamin D Treatment at San Raffaele Hospital
The Endocrinology Unit of the IRCCS San Raffaele Hospital is dedicated to establishing a prospective single-center registry with data from patients undergoing vitamin D supplementation, initiating their first visit to the…
- Trial name
- NCT06481111
- Testing
- supplementary treatment with vitamin D
- Where
- Italy
- Volunteers
- 1,000 people
- Sponsor
- IRCCS San Raffaele
Diabetes Mellitus, Type 1
Protective Effects of Saxagliptin (And Vitamin D3) on β Cell Function in Adult-onset Latent Autoimmune Diabetes
The main purpose of this study is to evaluate whether saxagliptin or (and vitamin D3) with metformin (and insulin) therapy can better protect islet β cell function than metformin(and insulin) .
- Trial name
- NCT02407899
- Testing
- Saxagliptin, Vitamin D3, Insulin
- Where
- 39 sites in China
- Volunteers
- 300 people
- Sponsor
- Second Xiangya Hospital of Central South University
Bell Palsy, Vitamin D Deficiency
The Effect Vitamin D on the Recovery Rate of Bell Palsy
Patients aged between 18-65 who visit the Physical Medicine and Rehabilitation outpatient clinic diagnosed with Bell Palsy will be included in the study.
- Conditions
- Bell Palsy, Vitamin D Deficiency, Facial Paralysis
- Trial name
- NCT05997199
- Testing
- Vitamin D replacement
- Where
- Turkey (Türkiye)
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- Umraniye Education and Research Hospital
Knee Osteoarthritis
A Study of Alendronate Sodium Vitamin D3 Tablets on Knee Osteoarthritis
The purpose of this study is to evaluate the effect of alendronate sodium vitamin D3 tablets compared with placebo on the improvement of joint structure and joint pain in participants with knee osteoarthritis.
- Trial name
- NCT04739592
- Testing
- alendronate sodium vitamin D3 tablets
- Where
- 3 sites in China
- Volunteers
- 60 people
- Sponsor
- Peking Union Medical College Hospital
Prostate Cancer
Vitamin D3 Supplementation for Low-Risk Prostate Cancer: A Randomized Trial
Vitamin D promotes the differentiation of prostate cancer cells and maintains the differentiated phenotype of prostate epithelial cells.
- Trial name
- VD3PCa (NCT01759771)
- Testing
- Vitamin D3
- Where
- 2 sites in United States
- Volunteers
- 130 people
- Sponsor
- VA Office of Research and Development
Healthy
Study Assessing Dosing Time and Calcium and Vitamin D on the Relative BA of 35 mg DR Risedronate Dosed With Food
Randomized, open-label, single dose, 3-treatment, 3-period crossover study, with a 14- to 17-day washout period between doses. The study will consist of a screening visit, study center admission (preceding Treatment Periods 1, 2…
- Trial name
- NCT00868907
- Testing
- 35 mg risedronate DR tablet
- Where
- 4 sites in United States
- Volunteers
- 101 people, healthy volunteers welcome
- Sponsor
- Warner Chilcott
Phosphorus and Calcium Disorders
Reliability of Serum Calcium to Phosphorus (Ca/P) Ratio as an Accurate and Inexpensive Tool to Define Disorders of Ca-P Metabolism
BACKGROUND: Primary hyperparathyroidism (PHPT) is the third most common endocrine disorder. The Ca/P ratio is an accurate tool to differentiate patients with PHPT (>3.5 if Ca and P are expressed in mg/dl) from healthy subjects.
- Trial name
- NCT03603444
- Testing
- No intervention are provided
- Where
- Italy
- Volunteers
- 606 people
- Sponsor
- Azienda Ospedaliero-Universitaria di Modena
Prostate Cancer
Vitamin D Effects on Prostate Pathology
There is much interest in understanding the role that vitamin D3 (cholecalciferol) plays in various cancers, and in the prognosis of various cancers once they are discovered.
- Trial name
- DProstate (NCT00741364)
- Testing
- vitamin D3 (cholecalciferol)
- Where
- Canada
- Volunteers
- 90 people
- Sponsor
- University of Toronto
Alzheimer Disease
Feasibility and Efficacy of the Ketogenic Diet in Alzheimer's Disease
The purpose of the KDRAFT study is to assess the feasibility and preliminary cognitive efficacy of a ketogenic diet therapy in patients with Alzheimer's disease.
- Trial name
- KDRAFT (NCT03690193)
- Testing
- Ketogenic Diet
- Volunteers
- 15 people
- Sponsor
- University of Kansas Medical Center
Infertility, Female, Polycystic Ovary Syndrome
Antioxidant Supplement Associated With Oral Probiotics in Patients With PCOS in IVF
The aim of the study is to study the effect of an antioxidant food supplement associated with probiotics on the oocyte quality response, oxidative stress and microbiota function in an in vitro fertilization cycle in patients with…
- Trial name
- NCT04670393
- Testing
- FertyBiotic Woman Plus
- Where
- Spain
- Volunteers
- 20 people
- Sponsor
- Fertypharm
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