Clinical trials: Cholecalciferol
Breast Cancer
Vitamin D and Breast Cancer: Does Weight Make a Difference?
This is a research study of the effect of Vitamin D on breast cancer. We hope to learn whether Vitamin D can change characteristics of certain genes in a breast cancer tumor that affect its growth.
- Trial name
- NCT01472445
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 41 people
- Sponsor
- Melinda Telli
Chronic Lymphocytic Leukemia, Non-Hodgkin Lymphoma
Cholecalciferol in Newly Diagnosed Non-Hodgkin Lymphoma or Chronic Lymphocytic Leukemia With Vitamin D Deficiency
This randomized pilot early phase I trial studies how well cholecalciferol works in treating patients with newly diagnosed non-Hodgkin lymphoma or chronic lymphocytic leukemia with low levels of vitamin D (vitamin D deficiency).
- Conditions
- Chronic Lymphocytic Leukemia, Non-Hodgkin Lymphoma, Untreated Chronic Lymphocytic Leukemia, Vitamin D Deficiency
- Trial name
- NCT02553447
- Testing
- Cholecalciferol, Laboratory Biomarker Analysis
- Where
- United States
- Volunteers
- 197 people
- Sponsor
- University of Nebraska
Breast Cancer, Invasive Breast Carcinoma
Effect of High Dose Vitamin D on Cancer Biomarkers and Breast Cancer Tumors
High-doses of Vitamin D (VD) may be used as targeted therapy against breast cancer. The investigators will assess the effect of high dose VD on the following biomarkers in the breast cancer cells: VDR, estrogen receptor (ER)…
- Conditions
- Breast Cancer, Invasive Breast Carcinoma, Ductal Carcinoma In-situ
- Trial name
- NCT02856503
- Testing
- Vitamin D3
- Sponsor
- Eli Avisar, MD
Urinary Bladder, Overactive, Overactive Bladder
Vitamin D Treat-to-Target Strategy for Children With Overactive Bladder-Wet
The purpose of this clinical trial is to investigate whether adding high-dose vitamin D (2,400 IU daily) to standard medical treatment (solifenacin combined with behavioral therapy) is more effective than standard treatment alone…
- Conditions
- Urinary Bladder, Overactive, Overactive Bladder, Urinary Incontinence, Urge
- Trial name
- NCT06201013
- Testing
- urotherapy, Solifenacin Succinate, Vitamin D3
- Where
- China
- Volunteers
- 180 people
- Sponsor
- Children's Hospital of Chongqing Medical University
Type 2 Diabetes
Study of Vitamin D and Omega-3 Supplementation for Preventing Diabetes
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids…
- Trial name
- NCT01633177
- Testing
- Vitamin D3, Omega-3 fatty acid (fish oil)
- Where
- United States
- Volunteers
- 22,220 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Vitamin D Deficiency, Cognitive Decline
High-dose Vitamin D Supplements in Older Adults
This Phase II randomized clinical trial aims to test if supplementation with high dose oral vitamin D will successfully correct vitamin D insufficiency, compared to treatment with standard (RDA) dose vitamin D in a diverse…
- Trial name
- NCT03613116
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 180 people
- Sponsor
- University of California, Davis
Preeclampsia, Eclampsia
Vitamin D Supplementation Among Pregnant Women in Uganda for the Prevention of Hypertensive Disorders in Pregnancy, and Other Adverse Maternal and Foetal Outcomes
The goal of this randomised controlled trial is to investigate if vitamin D supplementation among pregnant women in Uganda prevents adverse maternal and foetal outcomes, with special emphasis on preeclampsia.
- Conditions
- Preeclampsia, Eclampsia, HELLP Syndrome
- Trial name
- MAMA (NCT07510568)
- Testing
- oral 2.000 IU vitamin D3 (cholecalciferol) daily, in addition to routine ANC supplementations
- Volunteers
- 1,980 people
- Sponsor
- St Mary's Hospital, Lacor
Female Hormone Profile
Acute Vitamin D Supplementation on Testosterone in Females
Participation will take place over two visits to the Clinical Exercise Research Center (CERC) at the University of Southern California Health Sciences Campus.
- Trial name
- NCT06610968
- Testing
- Vitamin D (Cholecalciferol )
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Southern California
Asthma
Vitamin D Supplementation During Pregnancy for Prevention of Asthma in Childhood
The aim of this study is to prevent asthma symptoms (recurrent wheeze) in childhood by supplementation with high dose vitamin D to the mother during pregnancy.
- Trial name
- ABCvitaminD (NCT00856947)
- Testing
- Cholecalciferol D3
- Where
- 2 sites in Denmark
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Copenhagen Studies on Asthma in Childhood
Diabetes Mellitus, Gestational
Effects of Vitamin D and Calcium on Hyperglycemia and Dyslipidemia in Patients Gestational Diabetes
Gestational diabetes mellitus (GDM) is becoming more common globally as a metabolic disease that occurs during pregnancy and influences the mother and the fetus.
- Trial name
- NCT06896669
- Testing
- vitamin D3
- Where
- Pakistan
- Volunteers
- 60 people
- Sponsor
- Riphah International University
Breast Cancer
Study of Vitamin D Supplementation Tailored to Vitamin D Deficiency in Breast Cancer Patients
The purpose of this study is to compare normalization of vitamin D serum level after 6 months of vitamin D supplementation adjusted to baseline vitamin D serum level vs.conventional vitamin D supplementation.
- Trial name
- VITACAL (NCT01480869)
- Testing
- calcium and cholecalciferol
- Where
- France
- Volunteers
- 215 people
- Sponsor
- Institut du Cancer de Montpellier - Val d'Aurelle
Type 2 Diabetes Mellitus (T2DM), Vitamin D Deficiency
Effect of Vitamin D Supplementation on Metabolic Parameters in Patients With Type 2 Diabetes and Vitamin D Deficiency
The goal of this clinical study is to learn whether vitamin D supplementation improves metabolic control in adults with type 2 diabetes mellitus who have vitamin D deficiency.
- Trial name
- VITD-DM2 (NCT07468721)
- Testing
- cholecalciferol (vitamin D3)
- Where
- Paraguay
- Volunteers
- 119 people
- Sponsor
- Faculty of Medical Sciences, Clinical Hospital
Enuresis
Efficacy and Safety of Vitamin D Supplementation Combined With Alarm Therapy in Treating Nocturnal Enuresis
This prospective, randomized, two-arm, parallel-design controlled clinical trial aims to determine whether high-dose vitamin D supplementation combined with alarm therapy improves outcomes in children with primary monosymptomatic…
- Trial name
- NCT06508333
- Testing
- alarm therapy, Vitamin D3
- Where
- China
- Volunteers
- 262 people
- Sponsor
- Xing Liu
Plaque Psoriasis, Vitamin D3
Triamcinolone With Vitamin D Synergistic Efficacy in Psoriasis
These studies are designed to assess the synergistic efficacy of topical 0.1% triamcinolone cream paired with 40,000 IU of oral vitamin D3 daily in treating mild to moderate psoriasis.
- Trial name
- NCT04036188
- Testing
- Triamcinolone, Vitamin D3
- Where
- United States
- Volunteers
- 24 people
- Sponsor
- Wright State University
Diabetes Mellitus, Type 2
Effects of Vitamin D3 and Yeast Beta-Glucan Supplementation on Glycemic Control and Cardiovascular Disease Risk in Patients With Type 2 Diabetes
This study is a randomized, double-blind, placebo-controlled trial involving 2,500 individuals aged 40-79 with type 2 diabetes (T2D).
- Trial name
- NCT06861062
- Testing
- Vitamin D3, yeast β-glucan
- Where
- 5 sites in China
- Volunteers
- 2,500 people
- Sponsor
- Huazhong University of Science and Technology
Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8
Vitamin D for Prostate Endocrine Therapy
This phase III trial tests whether high-dose vitamin D works in treating androgen-deprivation therapy (ADT)-induced bone loss in patients with prostate cancer who are undergoing androgen-deprivation therapy.
- Conditions
- Stage I Prostate Cancer AJCC v8, Stage II Prostate Cancer AJCC v8, Stage III Prostate Cancer AJCC v8, Stage IVA Prostate Cancer AJCC v8
- Trial name
- ViPER (NCT05838716)
- Testing
- Biospecimen Collection, D Vitamin, Dual X-ray Absorptiometry
- Where
- 51 sites in United States
- Volunteers
- 240 people
- Sponsor
- University of Rochester
Rotaviral Gastroenteritis
Evaluation of the Role of Vitamin D in Reducing the Severity and Duration of Rotavirus Infection in Iraqi Children
The aim of this study is to evaluate the effect of vitamin D supplementation on the clinical outcomes including duration and severity of rotavirus-induced gastroenteritis in children that will be admitted to the hospital.
- Trial name
- NCT07167797
- Testing
- Vitamin D (Cholecalciferol ), Standard treatment for rotavirus
- Where
- Iraq
- Volunteers
- 60 people
- Sponsor
- University of Baghdad
Hypertension
Vitamin D and Omega-3 Hypertension Trial (VITAL Hypertension)
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,875 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids…
- Trial name
- NCT01653678
- Testing
- Vitamin D-3 (cholecalciferol), 2000 IU, Omega-3 fatty acids (fish oil)
- Where
- United States
- Volunteers
- 25,875 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital
Death, Myocardial Infarction
A Trial Evaluating Vitamin D Normalization on Major Adverse Cardiovascular-Related Events Among Myocardial Infarction Patients
This study evaluates whether achieving 25-hydroxyvitamin D (25[OH] Vit D) levels (>40 ng/mL) among myocardial infarction patients will result in a reduction of cardiovascular-related adverse events.
- Conditions
- Death, Myocardial Infarction, Cerebral Vascular Accident, Heart Failure Hospitalization
- Trial name
- TARGET-D (NCT02996721)
- Testing
- Vitamin D3
- Where
- United States
- Volunteers
- 634 people
- Sponsor
- Intermountain Health Care, Inc.
Depression, Depressive Symptoms
VITAL-DEP: Depression Endpoint Prevention in the VITamin D and OmegA-3 TriaL
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is an ongoing randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids…
- Conditions
- Depression, Depressive Symptoms, Mood
- Trial name
- VITAL-DEP (NCT01696435)
- Testing
- vitamin D3, omega-3 fatty acids (fish oil)
- Where
- United States
- Volunteers
- 18,353 people, healthy volunteers welcome
- Sponsor
- Brigham and Women's Hospital