Clinical trials: Vitamin D3, completed
Vitamin D Deficiency
Controlled Trial of Prenatal Vitamin D3 Supplementation to Prevent Vitamin D Deficiency in Mothers and Their Infants
The purpose of this research study is to compare the effects of higher dose vitamin D with commonly recommended dose in pregnant women to see which is better in achieving and/or maintaining sufficient vitamin D blood levels…
- Trial name
- PA 03-103 (NCT00610688)
- Testing
- Prenatal Vitamin, Cholecalciferol (Vitamin D3)
- Where
- 2 sites in United States, United Arab Emirates
- Volunteers
- 192 people, healthy volunteers welcome
- Sponsor
- Children's Hospital Medical Center, Cincinnati
Anorexia Nervosa
Effects of Anorexia Nervosa on Peak Bone Mass
Teenage girls with anorexia nervosa (AN) are at risk for low bone density and low rates of bone accrual, raising concerns regarding acquisition of peak bone mass, an important determinant of future bone health and fracture risk.
- Trial name
- NCT01301183
- Testing
- RhIGF-1 with transdermal 17-beta estradiol
- Where
- United States
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Massachusetts General Hospital
Breast Cancer
Development of Vitamin D as a Therapy for Breast Cancer - Phase 2
This study will assess whether levels of vitamin D impact the characteristics of a woman's breast cancer at diagnosis, and whether a short course of vitamin D in women with low levels of vitamin D changes the gene expression of…
- Trial name
- NCT00656019
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 63 people
- Sponsor
- Stanford University
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency
This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT01704079
- Testing
- CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
- Where
- United States
- Volunteers
- 216 people
- Sponsor
- OPKO IP Holdings II, Inc.
Vitamin D and Hepatitis B Virus
The Relationship Between Vitamin D and Hepatitis B Virus Replication
149 HBV carriers with inadequate serum vitamin D levels were randomized to two groups: one is supplied with vitamin D and another without as controls. The markers of HBV replication were compared before and after treatment.
- Trial name
- NCT03068767
- Testing
- Vitamin D
- Where
- Taiwan
- Volunteers
- 149 people
- Sponsor
- Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
Respiratory Infection
Human Lung Responses to Respiratory Pathogens
For most individuals, the lung has a remarkable ability to deal with exposure to a variety of inhaled bacteria. Some individuals, however, do have recurrent bacterial infections, usually in the form of acute or chronic bronchitis…
- Trial name
- NCT01967628
- Testing
- Vitamin D3 (cholecalciferol)
- Where
- United States
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- University of Iowa
Type 1 Diabetes
Effect of Vitamin D on the Honeymoon Period in Children and Adolescents With Type 1 Diabetes
The purpose of this study is to determine if supplementation with Vitamin D in children and adolescents with newly diagnosed type 1 diabetes increases the number of patients who enter the honeymoon period.
- Trial name
- NCT01724190
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 38 people
- Sponsor
- Nationwide Children's Hospital
Secondary Hyperparathyroidism
Suspected Deficient Activation of Vitamin D in Patients With Secondary Hyperparathyroidism
The purpose of this study is to determine if a reduction in the enzyme 1-hydroxylase, which activates Vitamin D, is the cause of overactivity of the parathyroid glands (called secondary hyperparathyroidism - normal blood calcium…
- Trial name
- 1hydroxylase (NCT00754442)
- Testing
- Teriparatide
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Maryland, Baltimore
Vitamin D Deficiency, Pre-Eclampsia
Effect of Vitamin D3 Supplementation in Pregnancy on Risk of Pre-eclampsia
Vitamin D deficient pregnant ladies were selected and randomized into 2 groups for routine daily dose of multivitamin (400IU vitamin D3) versus maximum safest treatment daily dose (4000IU vitamin D3).
- Trial name
- NCT03101150
- Testing
- 400 IU Vitamin D3, 4000 IU Vitamin D3
- Volunteers
- 179 people, healthy volunteers welcome
- Sponsor
- King Fahad Medical City
Obesity, Vitamin D Deficiency
Vitamin D Supplementation Reduces Renin-Angiotensin System Activity in Obesity
Hypothesis: Vitamin D supplementation lower renin-angiotensin system activity in obesity. Specific Aim: To investigate whether Vitamin D supplementation in obesity improves the vascular sensitivity to angiotensin II.
- Conditions
- Obesity, Vitamin D Deficiency, Hypertension
- Trial name
- NCT01068418
- Testing
- Vitamin D (cholecalciferol)
- Where
- United States
- Volunteers
- 26 people
- Sponsor
- Brigham and Women's Hospital
Verruca Viral
A Comparative Study to Assess Efficacy of Intralesional MMR Vaccine and Intralesional Vitamin D3 in Treatment of Warts
Common warts are papulonodular epidermal lesions caused by human papillomavirus (HPV) usually by the strains 1, 2, 4, 27 or 57. Cutaneous warts occur in 7% to 10% of the general population, with a maximum incidence between 12 and…
- Trial name
- MMR (NCT04428359)
- Testing
- Measles-Mumps-Rubella Vaccine, Vit D
- Where
- Nepal
- Volunteers
- 66 people
- Sponsor
- B.P. Koirala Institute of Health Sciences
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
Spinal Cord Injury, Bone Loss
Effect of Alendronate on Bone in People With Chronic Spinal Cord Injury (SCI) Previously Treated With Teriparatide
The purpose of this study is to determine if a year of alendronate treatment will maintain or increase bone mass density (BMD) compared to baseline BMD values in people with chronic spinal cord injury (SCI).
- Conditions
- Spinal Cord Injury, Bone Loss, Osteoporosis
- Trial name
- NCT02195895
- Testing
- Alendronate, Calcium, Vitamin D
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Northwestern University
Osteoporosis
Study Evaluating Changes In Bone Mineral Density (BMD), And Safety Of Rhbmp-2/CPM In Subjects With Decreased BMD
The main purpose of this study is to assess whether a locally-administered rhBMP-2/CPM injection can rapidly increase bone mass in subjects at high risk for osteoporotic fractures of the hip.
- Trial name
- NCT00752557
- Testing
- rhBMP-2/CPM injection and bisphosphonates, calcium, and vitamin D (oral bisphosphonate therapy), bisphosphonates, calcium, and vitamin D
- Where
- 35 sites in United States, Belgium and 2 more
- Volunteers
- 50 people
- Sponsor
- Pfizer
Oxidative Stress, Anesthesia
Comparison of Total Oxidant and Total Antioxidant Capacities in Low-Flow and High-Flow General Anesthesia
The goal of this observational study is to determine whether low-flow anesthesia has a positive contribution to the total oxidant/antioxidant balance.
- Trial name
- NCT05590312
- Testing
- general anesthesia
- Where
- Turkey (Türkiye)
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Duzce University
Postmenopausal Women With Osteoporosis
A Study to Compare Efficacy, PK, PD, Safety and IMM of MB09 to Prolia® [EU-sourced] in Postmenopausal Osteoporosis.
This was a randomized, double-blind, parallel, multicenter, multinational study to compare the efficacy, pharmacokinetics, pharmacodynamics, safety and immunogenicity of MB09 versus Prolia® in postmenopausal women with…
- Trial name
- NCT05338086
- Testing
- MB09 (denosumab biosimilar), EU-Prolia, Elemental Calcium
- Where
- 64 sites in Bulgaria, Estonia and 6 more
- Volunteers
- 558 people
- Sponsor
- mAbxience Research S.L.
Osteopenia, Osteoporosis
Prevention of Bone Loss After Pediatric Hematopoietic Cell Transplantation
This is a Phase 2, open-label, randomized, controlled clinical study of pediatric subjects treated with pamidronate with calcium and vitamin D versus calcium and vitamin D alone following hematopoietic cell transplantation (HCT).
- Trial name
- NCT02074631
- Testing
- Pamidronate, Calcium and vitamin D
- Where
- 2 sites in United States
- Volunteers
- 63 people
- Sponsor
- Masonic Cancer Center, University of Minnesota
Gastric Bypass, Parathyroid Hormone
Trial Of Paricalcitol and Cholecalciferol(Vitamin D3) in the Treatment Of Secondary Hyperparathyroidism in Patients After ROUX-EN-Y Gastric Bypass Surgery
Evaluate the efficacy of paricalcitol, cholecalciferol, and placebo in the reduction of parathyroid hormone in patients after Roux-en-Y gastric bypass surgery (RYGB).
- Trial name
- ExtenD (NCT01138475)
- Testing
- Paricalcitol, Cholecalciferol
- Where
- United States
- Volunteers
- 49 people, healthy volunteers welcome
- Sponsor
- Kerstyn C. Zalesin, M.D.
Osteoporosis
FOSAMAX PLUS and FOSAMAX PLUS D Re-examination Study (0217A-267)
This survey is conducted for preparing application materials for re-examination under the Pharmaceutical Affairs Laws and its Enforcement Regulation, its aim is to reconfirm the clinical usefulness of FOSAMAX PLUS / FOSAMAX PLUS…
- Trial name
- NCT01065779
- Testing
- FOSAMAX PLUS, FOSAMAX PLUS D
- Volunteers
- 880 people
- Sponsor
- Organon and Co
Actinic Keratosis
Potential Impact of Patient Vitamin D Status in AK Response to MAL-PDT
In topical photodynamic therapy (PDT) for non-melanoma skin cancers, a photosensitizing prodrug, 5-aminolaevulinic acid (ALA) or its methylated ester, methyl aminolevulinate (MAL), is converted to the endogenous photosensitizer…
- Trial name
- PDT (NCT02878382)
- Testing
- Conventional MAL-PDT, Calcipotriol assisted MAL-PDT
- Where
- 2 sites in Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- University of Sao Paulo