Clinical trials: Cholecalciferol
Vitamin D, Thyroid Autoimmune Disease
Vitamin D, Hashimato's Thyroiditis and Thyroid Functions
The goal of this retrospective observational study is to determine whether vitamin D levels differ in patients with Hashimoto's thyroiditis (HT) compared to those without Hashimoto's thyroiditis.
- Trial name
- NCT06726967
- Testing
- vitamin D 25(OH)D
- Where
- Turkey (Türkiye)
- Volunteers
- 81,180 people, healthy volunteers welcome
- Sponsor
- Ankara Yildirim Beyazıt University
Postmenopausal Osteoporosis, Hypovitaminosis D
Antiresorptive Effect of Treatment With Risedronate and Vitamin D in Postmenopausal Patients
Osteoporosis is defined as a systemic disease of bone mineralization, characterized by a decrease in bone mineral density that causes bone fragility and increases the risk of fractures during menopause.
- Conditions
- Postmenopausal Osteoporosis, Hypovitaminosis D, Hyperparathyroidism
- Trial name
- NCT05346419
- Testing
- Risedronate, Vitamin D
- Where
- Mexico
- Volunteers
- 33 people
- Sponsor
- Hospital Regional 1o de Octubre
Preterm Labor
The Combined Effect of Magnesium, Palmitoylethanolamide, High-Molecular-weight Hyaluronic Acid, Vitamin B6, and Vitamin D in Preventing Preterm Birth:
The aim of the study is to assess the effect of a combination of Magnesium, Palmitoylethanolamide, high-molecular-weight Hyaluronic Acid, Vitamin B6, and Vitamin D in women at risk of preterm birth (PTB).
- Trial name
- NCT07305519
- Testing
- Magnesium-PEA-HMW Hyaluronic Acid-Vitamin B6-Vitamin D + Vaginal Progesterone, Standard Treatment (Guideline-Based)
- Where
- Italy
- Volunteers
- 150 people
- Sponsor
- University of Roma La Sapienza
Spinal Cord Injury
Oral Colecalciferol Treatment in Spinal Cord Lesion
Low vitamin D is frequently seen in patients with spinal cord injury (SCI) in acute and chronic periods. Among its causes are insufficient sun exposure, limited oral intake, obesity, the effect of the drugs used on the absorption…
- Trial name
- NCT04400747
- Testing
- Vitamin D3
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Istanbul Physical Medicine Rehabilitation Training and Research Hospital
Healthy, Vitamin D Deficiency
Can Correction of Low Vitamin D Status in Infancy Program for a Leaner Body Composition?
One in four infants are born with low amounts of vitamin D stored in their body. This study is designed to test whether improving vitamin D status quickly after birth helps infants to build muscle and to normalize growth.
- Conditions
- Healthy, Vitamin D Deficiency, Gestational Diabetes
- Trial name
- NCT02563015
- Testing
- cholecalciferol, Reference 400
- Where
- Canada
- Volunteers
- 139 people, healthy volunteers welcome
- Sponsor
- McGill University
Osteoporosis, Postmenopausal
Denosumab China Phase III Study
This study is to evaluate the efficacy and safety of denosumab 60 milligrams (mg) for 12 month treatment in Chinese postmenopausal women with osteoporosis at increased risk of fracture.
- Trial name
- NCT02014467
- Testing
- Denosumab, Elemental Calcium, Vitamin D
- Where
- 8 sites in China
- Volunteers
- 486 people
- Sponsor
- GlaxoSmithKline
Vitamin D Deficiency
Serum and Semen Vitamin D Level With Semen Parameters
vitamin D may have multiple functions, one of them is modulating reproductive processes and the reproductive role of vitamin D is highlighted by expression of the vitamin D receptors in testis, male reproductive tract and sperms
- Trial name
- NCT03477136
- Testing
- ELISA to evaluate serum and seminal vitamin D level
- Where
- Egypt
- Volunteers
- 150 people
- Sponsor
- Assiut University
Inflammation
Safety, Tolerability and Efficacy of GcMAF in Patients With Chronic Inflammatory Diseases
This study, titled "A Multicenter Phase I/II Clinical Study to Evaluate the Safety, Tolerability, and Efficacy of GcMAF in Patients With Chronic Inflammatory Diseases" will investigate Gc Macrophage Activating Factor, a protein…
- Trial name
- NCT06877364
- Testing
- GcMAF
- Where
- Russia
- Volunteers
- 120 people
- Sponsor
- S.LAB (SOLOWAYS)
Vitamin D Deficiency
The D-BIICEP Study
Athletes and active individuals have been identified as an at-risk group for a low vitamin D status, specifically those residing in countries of higher latitude (such as the United Kingdom).
- Trial name
- D-BIICEP (NCT03253055)
- Testing
- DEXA, pQCT, Lifestyle Questionnaire
- Where
- 2 sites in United Kingdom
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- University of Surrey
Crohns Disease, Vitamin D Deficiency
Maintenance Dosing of Vitamin D in Crohn's Disease
Vitamin D repletion is important for bone health in patients with Crohn's disease. While repletion strategies in the general population yield similar results in those with Crohn's disease, maintenance strategies are variable.
- Trial name
- NCT03615378
- Testing
- 5000 IU D3, 1000 IU D3
- Where
- United States
- Volunteers
- 10 people
- Sponsor
- Cedars-Sinai Medical Center
Vitamin D Concentration
Vitamin D Satus in Adults With Newly Diagnosed ITP
Investigator study aims to assess the level of vitamin D in adult patients with newly diagnosed ITP and correlation between its level and treatment respose
- Trial name
- NCT07146555
- Testing
- No Interventions
- Volunteers
- 84 people, healthy volunteers welcome
- Sponsor
- Assiut University
Osteoporosis, Cardiac Transplantation
Osteoporosis Prevention After Heart Transplant
During the first year after a heart transplant, people often rapidly lose bone from their spine and hips. About 35 percent of people who receive heart transplants will suffer broken bones during the first year after…
- Trial name
- NCT00000412
- Testing
- Alendronate, Calcitriol
- Where
- 2 sites in United States
- Volunteers
- 149 people
- Sponsor
- Columbia University
Tooth Position Anomalies
The Effect of Vitamin D3 on the Rate of Orthodontic Tooth Movement
The aim of this study is to evaluate the effect of vitamin D3 deficiency on the rate of orthodontic tooth movement in both conventional and accelerated orthodontic.
- Trial name
- NCT04837781
- Testing
- Micro-osteoperforation
- Where
- Iraq
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Cognitive Performance
The Effect of Diet on Learning Abilities for Children in Kindergarden
The main aim of this intervention study is to test the effect of diet on improvement in cognitive performanc in kindergarden children aged 4-6 years.
- Trial name
- NCT02331667
- Testing
- Seafood, Non-seafood
- Where
- Norway
- Volunteers
- 233 people, healthy volunteers welcome
- Sponsor
- National Institute of Nutrition and Seafood Research, Norway
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Safety & Tolerability of Cinacalcet in Pediatric Patients With Chronic Kidney Disease and Secondary Hyperparathyroidism
The primary objective was to characterize corrected serum calcium levels on treatment with cinacalcet in pediatric patients with secondary hyperparathyroidism (HPT).
- Trial name
- NCT01439867
- Testing
- Cinacalcet hydrochloride, Standard of Care
- Where
- 42 sites in United States, Belgium and 11 more
- Volunteers
- 18 people
- Sponsor
- Amgen
Secondary Hyperparathyroidism, Renal Osteodystrophy
Regulation of Bone Formation in Renal Osteodystrophy
To examine the effects of two types of active vitamin D (calcitriol and doxercalciferol) and two phosphate binders (sevelamer and calcium carbonate) on the bone disease and blood tests of children with kidney failure
- Trial name
- NCT00560300
- Testing
- 1 alpha D2, 1,25 dihydroxy vitamin D3, Sevelamer HCl
- Volunteers
- 61 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Healthy
DP-R213 Phase 1 Pharmacokinetics Study
A randomized, open-label, crossover, Phase I clinical trial to compare the pharmacokinetics of DP-R213 (Raloxifenel and Cholecaliferol fixed dose combinations) in comparison to each component administered alone in healthy male…
- Trial name
- NCT03010267
- Testing
- DP-R213, Raloxifene, Cholecaliferol
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Alvogen Korea
Immunosenescence, Inflammation
Effect of Milk Protein and Prebiotics in Combination With Vitamin D on Innate Immunity in Elderly People
Rationale: The immune system in the ageing population becomes compromised with age (termed "Immunosenescence"). Therefore, elderly people have a decreased ability to respond to infection and vaccination.
- Trial name
- NCT03026244
- Testing
- Milk protein, prebiotics, vitamin D
- Where
- Netherlands
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- NIZO Food Research
Those Who Provided Written Informed Consent, Female Gender
The Effect of a Patient Education Program on Vitamin D Levels and Health Beliefs Regarding Vitamin D Use
Background and Rationale: Vitamin D deficiency is a major public health concern. While clinical guidelines provide treatment protocols, medication adherence remains a significant barrier to achieving target serum levels.
- Conditions
- Those Who Provided Written Informed Consent, Female Gender, Aged 18 Years and Older, Hypothyroidism Disease
- Trial name
- NCT07535671
- Testing
- Educational with vitamin D
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Karadeniz Technical University
PMS, Menstrual Cramp
A Randomized Placebo-Controlled Study to Evaluate the Effects of a Gummy and Capsule Supplement on Symptoms of Premenstrual Syndrome
This virtual, randomized, placebo-controlled clinical trial evaluates the effectiveness of a PMS capsule and PMS gummy in alleviating premenstrual syndrome symptoms over 12 weeks.
- Conditions
- PMS, Menstrual Cramp, Mood Change
- Trial name
- NCT06763809
- Testing
- PMS Capsule, PMS Gummy
- Where
- United States
- Volunteers
- 176 people, healthy volunteers welcome
- Sponsor
- Semaine Health
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.