Clinical trials: Cholecalciferol
Female Infertility, Polycystic Ovary Syndrome
Vitamin D Supplementation and Improvement of PCOS Therapy and IVF Outcomes in Infertile Saudi Women
This randomized double-blinded-controlled clinical trial consists of two protocols as follow: protocol 1: evaluation of the therapeutic effects of Vitamin D3 supplement when given alone and in combination with an…
- Conditions
- Female Infertility, Polycystic Ovary Syndrome, Pathologic Processes, Vitamin D Deficiency
- Trial name
- NCT05106712
- Testing
- Vitamin D3, Clomiphene Citrate, Letrozole
- Volunteers
- 700 people
- Sponsor
- Umm Al-Qura University
Breast Cancer
Vitamin D in Postmenopausal Women at High Risk for Breast Cancer
This is a phase II study which will enroll 20 postmenopausal women who are at high risk for breast cancer development. The goal is to determine whether a one-year intervention of high-dose vitamin D at 2 different doses (20,000…
- Trial name
- NCT00859651
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Columbia University
COVID-19
Vitamin D and Zinc Supplementation for Improving Treatment Outcomes Among COVID-19 Patients in India
The purpose of this study is to assess the effect of vitamin D and/or zinc supplementation on improving COVID-19 treatment outcomes.
- Trial name
- NCT04641195
- Testing
- Vitamin D3 (cholecalciferol), Zinc (zinc gluconate), Zinc (zinc gluconate) & Vitamin D (cholecalciferol)
- Where
- 2 sites in India
- Volunteers
- 181 people
- Sponsor
- Harvard School of Public Health (HSPH)
Type 2 Diabetes Mellitus, Vitamin D Deficiency
Effect of Vitamin D Supplementation on Glucose Tolerance in Subjects at Risk for Diabetes With Low Vitamin D.
Type 2 diabetes (T2D) is an increasingly common and serious condition. Studies show that low vitamin D levels are associated with increased diabetes risk and that vitamin D may protect against diabetes by reducing chronic…
- Trial name
- EVIDENCE (NCT01726777)
- Testing
- Control, Vitamin D
- Where
- 3 sites in Canada
- Volunteers
- 71 people
- Sponsor
- University of Toronto
Leukemia, Lymphoblastic, Acute, Osteoporosis
A Severity-Adapted Clinical Trial of Diminished Bone Mineral Density in Acute Lymphoblastic Leukemia Survivors
Research studies have shown that children who are long-term survivors of childhood leukemia may be at greater risk for early bone loss called osteoporosis.
- Trial name
- NCT00186901
- Testing
- Calcium carbonate (Tums), vitamin D
- Where
- 3 sites in United States
- Volunteers
- 429 people
- Sponsor
- St. Jude Children's Research Hospital
Healthy
Vitamin D Supplementation and PTH Response Among Malaysian Adults
This clinical trial was designed to determine the efficacy of vitamin D supplementation on plasma 25-hydroxyvitamin D [25(OH)D] and intact parathyroid hormone (PTH) concentrations of Malaysian female adults of child-bearing age…
- Trial name
- NCT05281107
- Testing
- 600 IU vitamin D + 500 mg calcium, 1200 IU vitamin D + 500 mg calcium, 4000 IU vitamin D + 500 mg calcium
- Where
- Malaysia
- Volunteers
- 106 people, healthy volunteers welcome
- Sponsor
- IMU University, Malaysia
COVID-19 Pandemic
Adjuvant Use Of Colchicine With The Standard Therapy In Moderate And Severe Corona Virus Disease-19 Infection
The study included 2 arms Colchicine group: Colchicine + standard therapy of COVID-19 Control group: Standard therapy of COVID-19
- Trial name
- NCT05151614
- Testing
- Colchicine 0.5 MG
- Where
- Iraq
- Volunteers
- 160 people
- Sponsor
- University of Baghdad
Minimal Change Disease, Nephrotic Syndrome
Active Vitamin D And Reduced Dose Prednisolone for Treatment in Minimal Change Nephropathy
Traditionally MCN is treated with a high dose of prednisolone, which induces remission in 60-90% of patients. Prednisolone treatment contains numerous side effects and the current dose is empiric.
- Trial name
- ADAPTinMCN (NCT03210688)
- Testing
- Prednisolone, Alfacalcidol
- Where
- 2 sites in Denmark
- Volunteers
- 71 people
- Sponsor
- University of Aarhus
Inflammatory Bowel Diseases
Association Between Vitamin D Deficiency and Inflammatory Bowel Disease
Crohn's disease (CD) and ulcerative colitis (UC) are two major types of inflammatory bowel disease (IBD) that are identified by different clinical, endoscopic, pathological, and radiologic diagnostic methods.
- Trial name
- NCT07259603
- Testing
- Serum 25(OH)D (Vitamin D3), C- reactive protein, Erthrocyte sedimentation rate
- Volunteers
- 100 people
- Sponsor
- Assiut University
HIV
Vitamin D HIV Study on Postmenopausal Women
The purpose of this study is to determine the effects of vitamin D on measures of bone health and immune function in HIV infected postmenopausal women.
- Trial name
- NCT01375010
- Testing
- Vitamin D3, Vitamin Supplements
- Where
- United States
- Volunteers
- 85 people
- Sponsor
- Columbia University
Postmenopausal Women With Osteoporosis
Phase III Clinical Trial of DP-R206 and Bonvia In Postmenopausal Women With Osteoporosis
A multicenter, randomized, double-blind, active-controlled, phase III clinical trial to evaluate the efficacy and safety of Dp-R206 and Bonviva for 16 weeks once a month on the improvement of vitamin D in postmenopausal women…
- Trial name
- DIOS (NCT01581320)
- Testing
- Test group, Reference group
- Where
- South Korea
- Volunteers
- 201 people
- Sponsor
- Alvogen Korea
Melanoma
Ultraviolet Light Exposure and Immunosuppression in Cutaneous Melanoma
This project seeks to understand differences in the serum vitamin D levels and immune status in cutaneous malignant melanoma patients with different UV exposure histories in New Mexico.
- Trial name
- NCT00996827
- Where
- 2 sites in United States
- Volunteers
- 100 people
- Sponsor
- New Mexico Cancer Research Alliance
Non-Hodgkin's Lymphoma, Lymphoma
Effect of Zoledronic Acid on Chemotherapy Induced Bone Loss
Primary Objective: Evaluate the effect of zoledronate on change in bone mineral density (BMD) at the total lumbar spine and femoral neck.
- Trial name
- NCT00352846
- Testing
- Zoledronic Acid, Vitamin D, Calcium Carbonate
- Where
- United States
- Volunteers
- 135 people
- Sponsor
- M.D. Anderson Cancer Center
Bone Alteration, Dietary Modification
Efficacy of a Once Daily Calcium and Vitamin D Fortified Food Product to Improve Bone Microarchitecture
The primary objective of this randomized, double-blind, placebo controlled trial is to determine the efficacy of a once per day calcium (1000mg) and vitamin D (1000IU) fortified food product on bone turnover markers, including…
- Trial name
- NCT02375503
- Testing
- Calcium/Vitamin D
- Where
- United States
- Volunteers
- 175 people, healthy volunteers welcome
- Sponsor
- United States Army Research Institute of Environmental Medicine
Overweight, Obesity
Effect of Vitamin D on Metabolic Profile in Overweight or Obese Women
The investigators investigated the effect of vitamin D3 supplementation on metabolic profile (anthropometric measures, blood pressure Lipids, lipoproteins and glycemic indices) in overweight or obese women.
- Trial name
- NCT01344161
- Testing
- vitamin D
- Where
- Iran
- Volunteers
- 85 people, healthy volunteers welcome
- Sponsor
- Tehran University of Medical Sciences
Bone Diseases, Osteomalacia
Study of the Diagnostic Value of Stable Calcium Isotope Profiling in Bone and Calcium Disorders
The purpose of this study is to determine whether mass spectrometry analysis of stable (non-radioactive) calcium isotopes in plasma or urine samples can help in the diagnosis of bone and calcium disorders.
- Conditions
- Bone Diseases, Osteomalacia, Osteoporosis
- Trial name
- eCaSIS (NCT02252679)
- Where
- 2 sites in Belgium, Germany
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
Heart Failure
Intervention With Vitamin D and Omega-3 Supplements and Incident Heart Failure
This study will examine whether an intervention with vitamin D or fish oil supplements can reduce the risk of heart failure among adult men and women during a follow up period of up to five years (starting from the time of…
- Trial name
- NCT02271230
- Testing
- Vitamin D and fish oil, Fish oil (EPA/DHA) alone, Vitamin D alone
- Where
- United States
- Volunteers
- 25,871 people
- Sponsor
- Brigham and Women's Hospital
Oral Lichen Planus
Micronutrients in Management of Symptomatic Oral Lichen Planus
Treatment of oral lichen planus is challenging. Diverse therapeutic modalities have been suggested, but a permanent cure is not yet available.
- Trial name
- NCT04765267
- Testing
- Zinc sulphate heptahydrate
- Where
- Egypt
- Volunteers
- 42 people
- Sponsor
- Cairo University
Pancreatic Cancer, Pancreas Cancer
Liposomal Irinotecan Plus 5-FU / LV Combined With Paricalcitol in Patients With Advanced Pancreatic Cancer Progressed on Gemcitabine-based Therapy
Given the efficacy of nanoliposomal irinotecan as a second-line regimen in pancreatic ductal adenocarcinoma (PDAC), together with the favorable toxicity profile of paricalcitol and its interplay with irinotecan metabolism, the…
- Conditions
- Pancreatic Cancer, Pancreas Cancer, Cancer of the Pancreas
- Trial name
- NCT03883919
- Testing
- 5-FU, Leucovorin, Liposomal Irinotecan
- Where
- United States
- Volunteers
- 20 people
- Sponsor
- Washington University School of Medicine
Infertility
Effect of Vitamin D Supplementation in Live Birth Rate of in Vitro Fertilization Outcome
This is a randomized-controlled trial evaluating the effect of the use of vitamin D supplementation on the live birth rate in women undergoing in vitro fertilization (IVF).
- Trial name
- NCT04547530
- Testing
- Vitamin D
- Where
- 2 sites in Hong Kong
- Volunteers
- 1,150 people
- Sponsor
- The University of Hong Kong
The first 1,020 results can be paged through. Add a filter or change the sort order to reach the rest.