Your search returned 132 studies. (Get alerts for new studies):
- The Effect of Vitamin D Supplementation During Caloric Restriction on Intestinal Calcium Absorption
Conditions: Weight Loss - Bone Density
1 Location available
- Effectiveness of Vitamin Supplementation in Treating People With Residual Symptoms of Schizophrenia
Conditions: Schizophrenia
3 Locations available
- Effect of Vitamin D3 Supplementation on Insulin Resistance and Cardiovascular Risk Factors in Obese Adolescents
Conditions: Obesity
1 Location available
- Vitamin E Supplements in Treating Patients Undergoing Surgery for Colorectal Cancer
Conditions: Colorectal Cancer
1 Location available
- Vitamin D Needs of Early Adolescent Children
Conditions: Healthy
3 Locations available
- Vitamin D Supplementation in Veterans With Early-Stage Prostate Cancer
Conditions: Prostate Cancer
2 Locations available
- Vitamin B6 Effects for Women Taking Birth Control Pills
Conditions: Vitamin B6 Deficiency
1 Location available
- Vitamin D Supplementation and Metabolism in Vitamin D Deficient Elderly
Conditions: Vitamin D Deficiency - Metabolic Syndrome
1 Location available
- Vitamin D Supplementation on Physical and Cognitive Function-Pilot Study
Conditions: Renal Dialysis - Vitamin D Deficiency
1 Location available
- Primary Hyperparathyroidism (PHPT): Early Effect of Vitamin D
Conditions: Primary Hyperparathyroidism - Hypercalcemia - Vitamin D Deficiency - Osteoporosis - Osteopenia
1 Location available
- Vitamin D Deficiency and Atopic Dermatitis
Conditions: Atopic Dermatitis - Vitamin D Deficiency
1 Location available
- Effect of Vitamin D Repletion on Insulin Resistance and Systemic Inflammation
Conditions: Insulin Resistance
1 Location available
- Vit D and HIV-CVD in Children and Young Adults Vitamin D and HIV-CVD in Children and Young Adults
Conditions: Vitamin D Deficiency
2 Locations available
- Effect of Vitamin D Supplementation on In-vitro Fertilization (IVF) Outcomes
Conditions: Infertility - Vitamin D Deficiency
2 Locations available
- Vitamin D for Sickle-cell Respiratory Complications
Conditions: Sickle Cell Disease - Vitamin D Deficiency - Acute Chest Syndrome - Asthma - Respiratory Infections
1 Location available
- Vitamin D and Breast Cancer in Obesity: Therapeutic Trials
Conditions: Breast Cancer
1 Location available
- Vitamin D Supplementation in HIV Youth
Conditions: HIV+
2 Locations available
- Impact on Reducing the Incidence of Low Serum Calcium by Providing Educational Materials on the Need to Take Daily Supplemental Calcium and Vitamin D
Conditions: Paget's Disease of the Bone - Hypocalcemia
14 Locations available
- Prevention of Capsular Contracture Using Trental and Vitamin E
Conditions: Capsular Contractures
1 Location available
- Haptoglobin Phenotype, Vitamin E and High-density Lipoprotein (HDL) Function in Type 1 Diabetes
Conditions: Diabetes Mellitus, Insulin-Dependent - Heart Disease
1 Location available
- Study to Evaluate Safety of Vitamin D Receptor Activators in Patients Ages 0 to 16 With Chronic Kidney Disease Stage 5 Receiving Peritoneal Dialysis W
Conditions: Secondary Hyperparathyroidism - End-Stage Renal Disease
18 Locations available
- Vitamin D in Vulnerable Adults (VIVA-VA)
Conditions: Frail Elderly - Vitamin d Deficiency
1 Location available
- Vitamin D Deficiency in Adolescent Girls
Conditions: Healthy - Vitamin D Deficiency
1 Location available
- DAYLIGHT: Vitamin D Therapy in Individuals at High Risk of Hypertension
Conditions: Hypertension - Vitamin D Deficiency - Pre-Hypertension
3 Locations available
- Vitamin D Deficiency in Subjects With Chronic Hepatitis C Compared to Healthy Volunteers
Conditions: Chronic Hepatitis C
1 Location available
- Study of Vitamin D in Children With Sickle Cell Disease
Conditions: Sickle Cell Disease
1 Location available
- D Vitamin Intervention in VA
Conditions: Impaired Fasting Glucose - Impaired Glucose Tolerance
1 Location available
- Effects of Vitamin D on Renal Blood Flow, Proteinuria and Inflammation in Patients With Chronic Kidney Disease
Conditions: Chronic Kidney Disease - Secondary Hyperparathyroidism
1 Location available
- Vitamin and Asthma Study
Conditions: Asthma
1 Location available
- Study of Vitamin D in Untreated Metastatic Colorectal Cancer
Conditions: Metastatic Colorectal Cancer
1 Location available
- Is Treatment of Vitamin D Deficiency Associated With Resolution of Statin-Induced Muscular Symptoms
Conditions: Myopathic Symptoms
1 Location available
- The Body's Affect on Vitamin C
Conditions: Healthy
1 Location available
- Vitamin D and Coronary Calcification Study
Conditions: Chronic Kidney Disease - Vitamin D Deficiency - Coronary Calcification - Disorders of Calcium and Bone Metabolism
1 Location available
- Pilot Study: Hypovitaminosis D, Hyperparathyroidism and Hypomagnesemia in Patients With Congestive Heart Failure
Conditions: Congestive Heart Failure - Hypovitaminosis D - Hypomagnesemia - Hyperparathyroidism
1 Location available
- Effect of Supplemental Vitamin D on Skeletal Muscle Function in Chronic Obstructive Pulmonary Disease (COPD) Patients
Conditions: Chronic Obstructive Pulmonary Disease (COPD)
1 Location available
- Vitamin D Deficiency in Patients With Hypertension
Conditions: Vitamin D Deficiency - Hypertension
1 Location available
- Vitamin E δ-Tocotrienol Administered to Subjects With Resectable Pancreatic Exocrine Neoplasia
Conditions: Pancreatic Neoplasms
1 Location available
- Vitamin D Supplementation Requirement in Obese Subjects
Conditions: Vitamin D Deficiency
1 Location available
- Study of Vitamin D in the Severely Mentally Ill
Conditions: Schizophrenia - Schizoaffective Disorder
1 Location available
- Vitamin D Supplementation And Varicella Zoster Virus Vaccine Responsiveness In Older Nursing Home Residents
Conditions: Immunosenescence - Shingles
1 Location available
- The Effects of Vitamin E and Vitamin C and Exercise
Conditions: Exercise and Non-exercise Effect Upon Vitamins E and C
1 Location available
- Cobalamin Absorption From Fortified Food
Conditions: Vitamin B-12 Deficiency - Achlorhydria
1 Location available
- Vitamin D Levels in the Skin of Healthy Subjects After Oral Supplementation
Conditions: Healthy, no Evidence of Disease - Non-melanomatous Skin Cancer
1 Location available
- Vitamin D Status, Disease Specific and Quality of Life Outcomes in Patients With Cutaneous Lupus
Conditions: Cutaneous Lupus Erythematosus
1 Location available
- Evaluation of the Use of Trental and Vitamin E For Prophylaxis of Radiation Necrosis
Conditions: Brain Metastasis
1 Location available
- Open Label Clinical Trial of Vitamin D in Children With Autism
Conditions: Autism - Vitamin D Deficiency
1 Location available
- Systemic Markers of Collagen Metabolism and Vitamin C in Smokers and Non-Smokers With Pelvic Organ Prolapse
Conditions: Pelvic Organ Prolapse
1 Location available
- Assessing the Efficacy and Safety of Intravenous Vitamin C in Combination With Standard Chemotherapy for Pancreatic Cancer
Conditions: Stage IV Pancreatic Cancer
1 Location available
- Resistance to Vitamin D or Parathyroid Hormone
Conditions: Hypocalcemia - Osteomalacia - Pseudohypoparathyroidism - Pseudo-Pseudohypoparathyroidism - Rickets
1 Location available
- How Vitamin D Analogues Affect Endothelial Cells in Patients on Dialysis
Conditions: Hyperparathyroidism, Secondary - Kidney Failure, Chronic - Endothelial Cells - Vitamin D
1 Location available
- A Randomized Phase III Study of Vitamins B6 and B12 to Prevent Chemotherapy-Induced Neuropathy in Cancer Patients
Conditions: Cancer
4 Locations available
- Study of Glutathione, Vitamin C and Cysteine in Children With Autism and Severe Behavior Problems
Conditions: Autism - Severe Behavior Disorder
1 Location available
- Vitamin D - Celecoxib Therapy
Conditions: Mouth Neoplasms
1 Location available
- Trial Of Paricalcitol and Cholecalciferol(Vitamin D3) in the Treatment Of Secondary Hyperparathyroidism in Patients After ROUX-EN-Y Gastric Bypass Sur
Conditions: Gastric Bypass - Parathyroid Hormone
1 Location available
- Vitamin D and Osteoporosis Prevention in Elderly African American Women
Conditions: Determining if Vitamin D Can Decrease Bone Loss and Inhibit the Decline Physical Performance in Elderly African American Women.
1 Location available
- Effect of Vitamin D Replacement on Insulin Sensitivity
Conditions: Insulin Sensitivity
1 Location available
- Vitamin D and Fish Oil for Autoimmune Disease, Inflammation and Knee Pain
Conditions: Autoimmune Diseases - Systemic Inflammatory Process - Knee Pain Chronic - Osteoarthritis - Rheumatoid Arthritis
1 Location available
- Vitamin D HIV Study
Conditions: HIV
1 Location available
- Vitamin D and Functional Outcomes After Total Hip Arthroplasty (THA)
Conditions: Vitamin D Deficiency
1 Location available
- Ascorbic Acid (Vitamin C) Infusion in Human Sepsis
Conditions: Sepsis - Septic Shock - Hypotension - Acute Lung Injury
1 Location available
- Vitamin E δ-Tocotrienol (VEDT) Single Dose in Healthy Subjects
Conditions: Pancreatic Cancer
1 Location available
- Vitamin D and Sexual Health
Conditions: Bacterial Vaginosis
1 Location available
- Vitamin D and Adipose Tissue Inflammation
Conditions: Vitamin D Deficiency - Obesity - Type 2 Diabetes Mellitus
1 Location available
- Bioavailability and Biological Effects of Vitamin D2 Contained in Mushroom
Conditions: Vitamin D Deficiency - Metabolic Syndrome - Prediabetes
1 Location available
- A Pilot Study of the Effect of Dietary Fat Type and Amount on Vitamin D3 Absorption
Conditions: Vitamin D Deficiency
1 Location available
- Urinary Vitamin C Loss in Diabetic Subjects
Conditions: Diabetes Mellitus
1 Location available
- Vitamin D Levels in Children With IBD
Conditions: Inflammatory Bowel Disease - Crohn's Disease - Ulcerative Colitis
1 Location available
- Human Tissue Distribution of Orally Supplemented Natural Vitamin E Tocotrienol
Conditions: End Stage Cardiac Failure - Pulmonary Failure - End Stage Liver Disease - Morbid Obesity - Recalcitrant Epilepsy Requiring Surgery - Healthy Subjects
1 Location available
- Vitamin D Levels in Children Undergoing Adenotonsillectomies and Controls
Conditions: Tonsillitis
1 Location available
- Safety and Immunologic Effect of Low Dose Versus High Dose Vitamin D3 in Multiple Sclerosis
Conditions: Multiple Sclerosis - Vitamin D Deficiency
1 Location available
- The Vitality, Independence, and Vigor in Elders Study I Clinical Trial
Conditions: Functional Mobility, Vitamin D Status, Bio-markers of Muscle Health, and Psychosocial Factors Such as Well-being.
6 Locations available
- Vitamin D and Breast Cancer Biomarkers in Female Patients
Conditions: Breast Cancer
98 Locations available
- The Influence of Proton Pump Inhibitors (PPI's) on Blood Levels of 25-Hydroxyvitamin D.
Conditions: Vitamin D
1 Location available
- African American Children, Glycemic Control, and Type 2 Diabetes
Conditions: Type 2 Diabetes - Vitamin D Deficiency
1 Location available
- Vitamin D Therapy to Reduce Cardiac Damage Among Vulnerable Hypertensive Patients
Conditions: Hypertension - Left Ventricular Hypertrophy
1 Location available
- Identifying Vitamin D Deficiency in Very Low Birth Weight Infant (VLBW) Infants Part 2
Conditions: Infant, Very Low Birth Weight - Calcium Deficiency - Vitamin D Deficiency
2 Locations available
- Vitamin D Supplementation in Multiple Sclerosis
Conditions: Relapsing Remitting Multiple Sclerosis
4 Locations available
- The Effect of Vitamin D Supplementation on Muscle Power in Elite Cyclist
Conditions: Muscle Power
1 Location available
- Impact of Vitamin D Supplementation on Cardiometabolic Risk Factors [The Daily D Health Study]
Conditions: Vitamin D Deficiency
1 Location available
- Calcium and Vitamin D to Optimize Bone Mass in Boys With Risperidone-induced Hyperprolactinemia
Conditions: Risperidone-induced Hyperprolactinemia
1 Location available
- Vitamin D in Minorities With Prediabetes
Conditions: Pre-Diabetes
1 Location available
- DIVINE: Dialysis Infection and Vitamin D In New England
Conditions: End Stage Renal Disease
3 Locations available
- Vitamin D Supplementation as Non-toxic Immunomodulation in Children With Crohn's Disease
Conditions: Crohn's Disease - Vitamin D Deficiency
1 Location available
- Vitamin D Supplementation and Acute Respiratory Infection in Older Nursing Home Residents
Conditions: Vitamin D - Respiratory Infection
1 Location available
- Effects of Vitamin D in Parkinson's Disease (PD)
Conditions: Parkinson Disease - Accidental Falls
1 Location available
- Vitamin D Supplement Study for Stage Three and Four Chronic Kidney Disease (CKD) Patients
Conditions: Chronic Kidney Disease Stage 3 and 4
1 Location available
- Impact of Vitamin D Repletion in Hemodialysis Patients
Conditions: Vitamin D Deficiency - End-stage Renal Disease
1 Location available
- Impact of Vitamin D Therapies on Chronic Kidney Disease
Conditions: Chronic Kidney Disease (CKD) - End-stage Renal Disease (ESRD)
1 Location available
- Sustainability of Vitamin D Levels After Repletion With Ergocalciferol In Chronic Kidney Disease Stage 5D
Conditions: Vitamin D Deficiency - Renal Failure Chronic Requiring Hemodialysis
4 Locations available
- Nutrition and Body Composition in Acute Lymphoblastic Leukemia
Conditions: Precursor Cell Lymphoblastic Leukemia-Lymphoma - Vitamin D Deficiency
1 Location available
- Vitamin D and Arterial Function in Patients With Chronic Kidney Disease
Conditions: Arterial Dysfunction - Chronic Kidney Disease
1 Location available
- Vitamin D and Glucose Metabolism in Pediatrics
Conditions: Insulin Resistance - Obesity - Vitamin D25 Insufficiency
1 Location available
- Effects of Vitamin D Supplementation During Pregnancy on Clinical Outcomes and Immune Function
Conditions: Vitamin D Deficiency
2 Locations available
- Vitamin E δ-Tocotrienol Multiple Dose in Healthy Subjects
Conditions: Pancreatic Cancer
1 Location available
- Vitamin D Supplementation on 15-Prostaglandin Dehydrogenase Expression in Barrett's Esophagus
Conditions: Short Segment Barrett's Esophagus - Long Segment Barrett's Esophagus
1 Location available
- The Effect of Vitamin D Repletion in Patients With Hepatocellular Carcinoma on the Orthotopic Liver Transplant List
Conditions: Vitamin D Deficiency - Hepatocellular Carcinoma
1 Location available
- Study on the Role of Treatment With Vitamin E on Asthmatic Responses in Allergic Asthmatics
Conditions: Allergic Asthma
1 Location available
- High Dose Vitamin B1 to Reduce Abusive Alcohol Use
Conditions: Alcoholism
1 Location available
- Vitamin D for Painful Nocturnal Leg Cramps
Conditions: Cramps
1 Location available
- Effects of Vitamin D on Lipids
Conditions: Hypercholesterolemia - Vitamin D Deficiency
1 Location available
- Vitamin D, Insulin Resistance, and Cardiovascular Disease
Conditions: Vitamin D Deficiency - Insulin Resistance - Type 2 Diabetes Mellitus - Cardiovascular Disease - Hypertension
1 Location available
- Treatment of Vitamin D Insufficiency
Conditions: Vitamin D Status - Secondary Hyperparathyroidism - Post-Menopause
1 Location available
- Vitamin D for Chronic Sinusitis
Conditions: Chronic Sinusitis
1 Location available
- The Effects of Vitamin D Repletion in Vitamin D Deficient Patients With Stage 3 and 4 Chronic Kidney Disease
Conditions: Chronic Renal Insufficiency - Proteinuria
1 Location available
- Vitamin D and Omega-3 Trial (VITAL)
Conditions: Cancer - Cardiovascular Disease
1 Location available
- Statin/Vitamin D & Migraine Study
Conditions: Migraine
1 Location available
- Vitamin D Supplementation for Treatment of Heart Failure
Conditions: Heart Failure
1 Location available
- Study of Vitamin D and Uric Acid Lowering on Kidney and Blood Vessel Function
Conditions: Renal Function - Endothelial Function - Blood Pressure - Overweight - Obesity
1 Location available
- Relationship Between Vitamin D Biomarkers and Survival in Blood Samples From Patients With Advanced Pancreatic Cancer
Conditions: Pancreatic Cancer
1 Location available
- Vitamin D3 Effects on Musculoskeletal Symptoms With Use of Aromatase Inhibitors
Conditions: Muscle Pain - Joint Pain
1 Location available
- Vitamin D and Soy Supplements in Treating Patients With Recurrent Prostate Cancer
Conditions: Prostate Cancer
1 Location available
- Clinical Effects of Vitamin D Repletion in Patients With Parkinson's Disease
Conditions: Parkinson's Disease
1 Location available
- A Randomized Trial to Determine if Vitamin B6 Can Prevent Hand and Foot Syndrome in Cancer Patients Treated With Capecitabine Chemotherapy
Conditions: Hand and Foot Syndrome
1 Location available
- An Open Label Trial to Evaluate the Effects of a Novel Renal Multivitamin on Inflammation and Other Biomarkers in Endstage Renal Disease Patients
Conditions: Hyperphosphatemia - Inflammation - Renal Disease
1 Location available
- The Effects of Vitamin D and Bone Loss in Parkinson's Disease
Conditions: Parkinson Disease
1 Location available
- hCAP18 Levels and Vitamin D Deficiency in Chronic Kidney Disease
Conditions: Chronic Kidney Disease - Vitamin D Deficiency
1 Location available
- Vitamin D Supplementation Reduces Renin-Angiotensin System Activity in Obesity
Conditions: Obesity - Vitamin D Deficiency - Hypertension
1 Location available
- Correlation Between Vitamin D Status and Bone Mineral Density in Patients With Hemophilia
Conditions: Hemophilia A - Hemophilia B - Vitamin D Deficiency
1 Location available
- Impact of Vitamin D on Diabetic Kidney Disease in African Americans
Conditions: Diabetic Kidney Disease
1 Location available
- Open-label Vitamin D Trial for Patients With Cystic Fibrosis and Allergic Bronchopulmonary Aspergillosis
Conditions: Cystic Fibrosis - Allergic Bronchopulmonary Aspergillosis - A. Fumigatus
2 Locations available
- Asthma, Missed Immunizations, and Vitamin D Deficiency in Atopic Dermatitis
Conditions: Atopic Dermatitis - Vitamin D Deficiency - Asthma
1 Location available
- Study of the Effect of Vitamin D as an Add-on Therapy to Corticosteroids in Asthma
Conditions: Asthma
16 Locations available
- Effect of Vitamin D Supplementation on Hemoglobin A1c
Conditions: Diabetes Mellitus - Vitamin D Deficiency
1 Location available
- Assessment of Vitamin D Supplementation and Immune Function
Conditions: Vitamin D Deficiency
1 Location available
- Cholecalciferol(25-[OH]-Vitamin D) in Treating Patients With Colorectal Cancer
Conditions: Mucinous Adenocarcinoma of the Colon - Mucinous Adenocarcinoma of the Rectum - Signet Ring Adenocarcinoma of the Colon - Signet Ring Adenocarcinoma of the Rectum - Stage I Colon Cancer - Stage I Rectal Cancer
1 Location available
- A Multi-Centered Trial Evaluating the Role of Vitamin D Metabolism in Non-Small Cell Lung Cancer
Conditions: Non-Small Cell Lung Cancer
2 Locations available
- The Effect of Vitamin D Supplementation on Cardiovascular Risk Factors Among Hispanics and African Americans With Type 2 Diabetes Mellitus
Conditions: Type 2 Diabetes
1 Location available
- Sunweavers: Supporting Native American Women's Vitamin D Research
Conditions: Vitamin D Deficiency - Cardiovascular Diseases
3 Locations available
- Testosterone Pellets Plus Vitamin D and E Versus Vitamin D and E Alone for the Treatment of Peyronie's Disease
Conditions: Peyronie's Disease
1 Location available
- Efficacy Of Tocotrienol a Natural Vitamin E In Biopsy Wound
Conditions: Scar
1 Location available
- Vitamin D Supplementation in Overweight/Obese African American Adults and Youth (D-SUNNY)
Conditions: Vitamin D Deficiency
1 Location available
- Vitamin D3 Supplementation Pilot Study
Conditions: Vitamin D Deficiency
1 Location available
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