Clinical trials: Dietary Calcium Deficiency
Vitamin D Deficiency, Secondary Hyperparathyroidism
Vitamin D Status in Males in Jerusalem Area and Its Correlation to Parathyroid Hormone (PTH) Level and Bone Mineral Density
Because of its high sun exposure, Israel was traditionally supposed to be protected from vitamin D deficiency, and the country food products hardly contain vitamin D supplements.
- Conditions
- Vitamin D Deficiency, Secondary Hyperparathyroidism, Osteomalacia
- Trial name
- NCT01025128
- Testing
- 25 OH vitamin D
- Where
- Israel
- Volunteers
- 210 people, healthy volunteers welcome
- Sponsor
- Clalit Health Services
Nutritional Stunting, Nutritional Anemia
Association Between Intakes of Protein, Calcium and Milk With Gene Expression and Linear Growth of School Aged Children
Protein is one type of nutrients known as the cause of stunting in developing countries since the mid-1970s (1) but then less attention on protein intake with the assumption that protein intake is sufficient.
- Conditions
- Nutritional Stunting, Nutritional Anemia, Nutritional Deficiency, Nutrigenetic
- Trial name
- NCT03895151
- Testing
- Milk supplementation, Food Based Recommendation (FBR) nutrition education
- Where
- Indonesia
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- SEAMEO Regional Centre for Food and Nutrition
Vitamin D Deficiency, Hypocalcemia
Effect of Vitamin D Supplement on Disease Activity in SLE
To study the effect of vitamin D supplementation on disease activity of SLE ( SLEDAI-2K ) and IL-6 level
- Conditions
- Vitamin D Deficiency, Hypocalcemia, Hyperparathyroidism, Systemic Lupus Erythematosus (Disorder)
- Trial name
- NCT05260255
- Testing
- vitamin D2 ( calciferol )
- Where
- Thailand
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Department of Medical Services Ministry of Public Health of Thailand
Osteoporosis, Osteopenia
Does Treatment of Hypovitaminosis D Increase Calcium Absorption?
The purpose is to perform a one-year study designed to assess whether treatment of hypovitaminosis D increases intestinal absorption of calcium, subsequent retention of calcium within bone, decreases bone turnover, and favorably…
- Conditions
- Osteoporosis, Osteopenia, Vitamin D Deficiency, Hypoparathyroidism
- Trial name
- NCT00581828
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Healthy
Study Comparing Two Isoforms of Vitamin D Supplements for Infants
There are two different types of vitamin D - vitamin D3 (animal source) and vitamin D2 (plant source). Almost all the usual vitamin D preparations for infants available in Canadian pharmacies contain vitamin D3 which may not be…
- Trial name
- NCT01190137
- Testing
- Cholecalciferol (D3) or ergocalciferol (D2)
- Where
- Canada
- Volunteers
- 52 people, healthy volunteers welcome
- Sponsor
- McGill University
Insulin Resistance, Insulin Sensitivity
Calcium, Vitamin D and Metformin to Treat Insulin Resistance in Obese African American Adolescent Females
This is a feasibility study to examine the treatment with Metformin, vitamin D with calcium supplement for insulin resistance in obese, black, female teens.
- Conditions
- Insulin Resistance, Insulin Sensitivity, Obesity, Vitamin D Deficiency
- Trial name
- NCT01107808
- Testing
- Calcium and Vit D, Metformin, Vit D and Calcium
- Volunteers
- healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Hemodyalysis, Kidney Tansplant
Assessment of Mineral and Bone Disorders in Kidney Transplant Recipients
This study aims to integrate bone measurements (including bone turnover markers (BTM), bone mineral density (BMD) measurement, vertebral fracture assessment (VFA), trabecular bone score (TBS) ) commonly used in the general…
- Conditions
- Hemodyalysis, Kidney Tansplant, Osteoporosis, CKD-MBD - Chronic Kidney Disease Mineral and Bone Disorder
- Trial name
- NCT07141043
- Where
- Romania
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Grigore T. Popa University of Medicine and Pharmacy
Rickets, Osteomalacia
Maternal and Infant Vitamin Status During the First Nine Months of Infant Life
In this study the investigators wanted to assess vitamin D status and possible consequences of low plasma 25-hydroxyvitamin D levels in a population of healthy mothers and their infants, in the community of Aarhus, Denmark.
- Conditions
- Rickets, Osteomalacia, Osteoporosis
- Trial name
- NCT02548520
- Testing
- Blood and breastmilk samples
- Where
- Denmark
- Volunteers
- 107 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Infection, Human Immunodeficiency Virus
A Study to Evaluate the Effects of Calcium Carbonate and Ferrous Fumarate on Pharmacokinetics of Dolutegravir in Healthy Adult Subjects
Human immune virus (HIV) infected subjects may take mineral supplements in combination with their antiretroviral medications. Calcium and Iron supplementations are commonly used and both of these have the potential to interact…
- Trial name
- NCT01762995
- Testing
- Dolutegravir 50 mg, Calcium Carbonate 1200 mg, Ferrous Fumarate 324 mg
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- ViiV Healthcare
Congenital Adrenal Hyperplasia, Familial Hyperinsulinemic Hypoglycemia 1
Baby Detect : Genomic Newborn Screening
Newborn screening (NBS) is a global initiative of systematic testing at birth to identify babies with pre-defined severe but treatable conditions.
- Conditions
- Congenital Adrenal Hyperplasia, Familial Hyperinsulinemic Hypoglycemia 1, Phosphoglucomutase 1 Deficiency, Maturity Onset Diabetes of the Young
- Trial name
- BabyDetect (NCT05687474)
- Where
- Belgium
- Volunteers
- 6,824 people, healthy volunteers welcome
- Sponsor
- Centre Hospitalier Universitaire de Liege
HIV Seropositive
Study of Vitamin D Supplementation to Male HIV Sero-positive Patients
The investigators want to investigate if HIV sero-positive males benefit from vitamin D supplementation. The study runs in 16 weeks and the participants are treated with one of three placebo controlled regimes (tablets): 1.
- Trial name
- NCT00990678
- Testing
- Rocaltrol, Vitamin D, Calcium
- Where
- Denmark
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Hvidovre University Hospital
Calcium Deficiency
The Effect of Calcium Intake on Calcium and Bone Metabolism During Load Carriage in Women
This randomised trial will investigate the effect of calcium supplementation on bone and calcium metabolism in women during acute load carriage exercise.
- Trial name
- En-Bone (NCT04823156)
- Testing
- Calcium
- Where
- United Kingdom
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Army Health Branch, British Army
Pre-Eclampsia, Hypertension, Pregnancy-Induced
Low Dose Calcium to Prevent Preeclampsia
The purpose of this study is to assess, in pregnant women with calcium-poor diets, what is the effectiveness of low-dose (500 mg/day) calcium supplements associated with an educational intervention, compared to the educational…
- Conditions
- Pre-Eclampsia, Hypertension, Pregnancy-Induced, Dietary Calcium Deficiency
- Trial name
- AMCAL (NCT02338687)
- Testing
- calcium, Educational sessions
- Where
- Brazil
- Volunteers
- 1,040 people, healthy volunteers welcome
- Sponsor
- Federal University of São Paulo
Chronic Kidney Diseases
SOP's for CKD-MBD-Biomarkers
CKD-MBD (Chronic Kidney Disease - Mineral and Bone Disorder) is an extensive disease and includes dysfunction of the mineral metabolism, the bone metabolism and cardiovascular diseases in the context of renal insufficiency.
- Trial name
- NCT02708368
- Testing
- blood withdrawal
- Where
- 2 sites in Germany
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- RWTH Aachen University
Pregnancy Complications
Vitamin D Treatment and Hypocalcemic Pregnant Women
Pregnant women in 24-26 gestational week will be recruited.Serum calcium and 25(OH)D will be evaluated and women with mild hypocalcemia (serum calcium 8-8.6 mg/dl) and 25(OH)D less than 30ng/ml will be entered to study. .
- Trial name
- NCT02021864
- Testing
- vitamin D3 50,000 unit, prenatal multivitamin
- Where
- Iran
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Dr. Sima Hashemipour
Osteoporosis
Treatment of Calcium Deficiency in Young Women
This study looks at the effects of calcium supplementation on bone density in women in their third decade of life. We placed women aged 19-27 who take in low amounts of calcium in their diets in one of two groups.
- Trial name
- NCT00000426
- Testing
- Calcium supplement
- Where
- United States
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Creighton University
Rickets
Ultrasound Imaging and Quantitative Vibro-Acoustic Assessment of Rickets Under the Age of Ten
The goal of this study is to find out if the use of ultrasound pictures of bones can spot changes in the growth areas of children with rickets, a condition that affects how bones harden.
- Trial name
- NCT06385938
- Testing
- Ultrasound with quantitative vibro-acoustic assessment
- Volunteers
- healthy volunteers welcome
- Sponsor
- Mayo Clinic
Postmenopausal, Vitamin D Deficiency
Study to Observe the Capability to Absorb Calcium as an Measure of Adequate Levels of Vitamin D
The purpose of this study is to determine the capability to absorb calcium as a measure of the sufficient levels of Vitamin D. Calcium absorption will be measured at baseline and after vitamin D3, by dual calcium isotope…
- Trial name
- NCT01119378
- Testing
- Dual isotope technique
- Where
- United States
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Winthrop University Hospital
Hypertension, Vitamin D Deficiency
Blood Pressure in Blacks and Calcium (BBC) and Vitamin D Study
Adequate levels of vitamin D are essential for bone health at all ages but low levels of vitamin D may also negatively impact other aspects of health such as blood pressure.
- Trial name
- BBC (NCT03070483)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Loyola University
Chronic Kidney Disease, Renal Osteodystrophy
Serum Sclerostin Levels, Cardiovascular Parameters and Carpal Tunnel Syndrome in Maintenance Hemodialysis Patients
Sclerostin, the product of the SOST gene, located on chromosome 17, locus q11.2 in humans, was originally believed to be a non-classical Bone morphogenetic protein (BMP) antagonist.Sclerostin was recently identified as a…
- Conditions
- Chronic Kidney Disease, Renal Osteodystrophy, Left Ventricular Hypertrophy
- Trial name
- NCT01382966
- Where
- Turkey (Türkiye)
- Volunteers
- 400 people, healthy volunteers welcome
- Sponsor
- RFM Renal Treatment Services