Clinical trials: Dietary Calcium Deficiency
Hypophosphatasia (HPP)
Safety and Efficacy Study of Asfotase Alfa in Severely Affected Infants With Hypophosphatasia (HPP)
This clinical trial studies the safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP.
- Trial name
- NCT00744042
- Testing
- asfotase alfa
- Where
- 10 sites in United States, Canada and 2 more
- Volunteers
- 11 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Vascular Calcification, Systemic and Arterial Stiffness
Treatment to Reduce Vascular Calcification in Hemodialysis Patients Using Vitamin K
The proposed study will seek to evaluate the prevalence and the progression of vascular calcification in a cohort of maintenance hemodialysis patients in Asian population.
- Conditions
- Vascular Calcification, Systemic and Arterial Stiffness, Complication of Hemodialysis, Deficiency of Vitamin K2
- Trial name
- TReVasc-HDK (NCT02870829)
- Testing
- menaquinone-7
- Where
- Singapore
- Volunteers
- 178 people
- Sponsor
- National University Health System, Singapore
Calcium Release Deficiency Syndrome
International CRDS Registry
Calcium Release Deficiency Syndrome (CRDS) is a newly discovered genetic arrhythmia syndrome that confers a risk of life-threatening arrhythmias secondary to RYR2 loss-of-function.
- Trial name
- CRDS Registry (NCT06508164)
- Where
- 22 sites in United States, Australia and 6 more
- Volunteers
- 500 people
- Sponsor
- Population Health Research Institute
X-linked Hypophosphatemia
Anti-FGF23 (Burosumab) in Adult Patients With XLH
X-linked hypophosphatemia (XLH) rare genetic disorder due by inactivating mutations in the PHEX gene leading to increased levels in FGF-23.
- Trial name
- BurGER (NCT04695860)
- Testing
- Burosumab
- Where
- Germany
- Volunteers
- 36 people
- Sponsor
- Wuerzburg University Hospital
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
End Stage Kidney Disease (ESKD), Hemodialysis
Medium Cut-Off and High-Flux Membranes on Mineral and Bone Metabolism in Hemodialysis Patients
This study aims to compare the effects of medium cut-off (MCO) and high-flux hemodialysis membranes on mineral and bone metabolism biomarkers in patients receiving maintenance hemodialysis.
- Conditions
- End Stage Kidney Disease (ESKD), Hemodialysis, Chronic Kidney Disease Mineral and Bone Disorder
- Trial name
- MBD-HD (NCT07685223)
- Testing
- Medium Cut-Off Hemodialysis Membrane, High-Flux Hemodialysis Membrane
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people
- Sponsor
- Gazi University
Vitamin D Deficiency, Nephrolithiasis
The Effect of Vitamin D on Urinary Calcium Excretion in Kidney Stone Formers With High Urinary Calcium
The investigators hypothesize that a 3 month course of vitamin D supplementation to treat 25(OH)D deficiency in stone formers with high levels of 24-hour urinary calcium will not increase urinary calcium excretion by greater than…
- Trial name
- NCT00948740
- Testing
- vitamin D (ergocalciferol)
- Where
- United States
- Sponsor
- Brigham and Women's Hospital
Anemia, Iron Deficiency
Co-administration of Calcium and Multiple Micronutrient Supplements for Maternal and Newborn Hemoglobin and Iron Status
The World Health Organization (WHO) currently recommends the pregnant women receive iron-containing supplements and, in settings where calcium intake is low, calcium supplements.
- Trial name
- CaMMS (NCT06568315)
- Testing
- Concurrent multiple micronutrient and calcium supplementation, Separate multiple micronutrient and calcium supplementation
- Where
- 2 sites in Burkina Faso, Pakistan
- Volunteers
- 3,200 people, healthy volunteers welcome
- Sponsor
- Johns Hopkins Bloomberg School of Public Health
Vitamin D Deficiency, Vitamin D Insufficiency
Trial to Assess Vitamin D Requirements in Lactating Women
This is a randomized, placebo-controlled trial of vitamin D supplementation with 20mcg cholecalciferol (to achieve a total intake of 25mcg/day), with or without 500mg calcium to assess vitamin D requirements in lactating women…
- Trial name
- DMUMs (NCT01349127)
- Testing
- 20µg Vitamin D3, 20µg Vitamin D3 + 500 mg Calcium
- Where
- Ireland
- Volunteers
- 136 people, healthy volunteers welcome
- Sponsor
- University College Cork
Vascular Calcifications
Risk Factors for Vascular Calcifications in Hemodialysis Patients: to What Extent is Vitamin K2 Deficiency Involved?
Vitamin K2 deficiency has been shown to be profound in hemodialysis patients. It is reflected by high plasma levels of dephosphorylated-undercarboxylated Matrix Gla protein (dp-ucMGP) and seems to be correlated with vascular…
- Trial name
- NCT02876354
- Testing
- Menaquinone
- Where
- Lebanon
- Volunteers
- 50 people
- Sponsor
- Saint-Joseph University
Vitamin D Deficiency, Primary Hyperparathyroidism
Effect of Vitamin D Treatment in Primary Hyperparathyroidism
The primary aim of the study is to assess whether 6-months of vitamin D supplements can decrease PTH compared with placebo treatment in primary hyperparathyroidism.
- Conditions
- Vitamin D Deficiency, Primary Hyperparathyroidism, Hypercalcemia
- Trial name
- NCT00674154
- Testing
- Cholecalciferol
- Where
- Denmark
- Volunteers
- 46 people
- Sponsor
- University of Aarhus
Hypophosphatasia (HPP)
Safety Study of Human Recombinant Tissue Non-Specific Alkaline Phosphatase Fusion Protein Asfotase Alfa in Adults With Hypophosphatasia (HPP)
This clinical trial studies the safety, tolerability, and pharmacology of asfotase alfa when given to adults with HPP.
- Trial name
- NCT00739505
- Testing
- Asfotase Alfa
- Where
- 3 sites in United States, Canada
- Volunteers
- 6 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Chronic Kidney Diseases, Hyperphosphatemia
Improving Phosphate Control in Children With CKD
Research goals: To explore the views and baseline knowledge of children and young people (CYP) with CKD and their caregivers to develop effective phosphate educational materials (PEM), adapted for age, and acknowledging different…
- Conditions
- Chronic Kidney Diseases, Hyperphosphatemia, Pediatric Kidney Disease, CKD-MBD
- Trial name
- IMPACT (NCT05439980)
- Testing
- Knowledge questionnaire, Focus groups
- Where
- United Kingdom
- Volunteers
- 100 people
- Sponsor
- Great Ormond Street Hospital for Children NHS Foundation Trust
Kidney Transplantation, Vitamin D Deficiency
Vitamin D3 Substitution in Vitamin D Deficient Kidney Transplant Recipients
The purpose of the study is to evaluate the effects of Cholecalciferol (Vitamin D3) substitution on the posttransplant outcome (glomerular filtration rate as well as serum creatinine levels, number of acute rejection episodes…
- Conditions
- Kidney Transplantation, Vitamin D Deficiency, Renal Osteodystrophy
- Trial name
- VITA-D (NCT00752401)
- Testing
- Cholecalciferol
- Where
- Austria
- Volunteers
- 200 people
- Sponsor
- Medical University of Vienna
Tooth Loss, Vitamin D3 Deficiency
Dental Implants Rehabilitation in Patients With Vitamin D3 Imbalance
Interventional retrospective prospective randomized clinical trial (RCT) in parallel groups. The sample size is 384 patients with loss of teeth and vitamin D imbalance.
- Conditions
- Tooth Loss, Vitamin D3 Deficiency, Osteomalacia
- Trial name
- NCT04841213
- Testing
- Dental implantation
- Where
- 2 sites in Russia
- Volunteers
- 384 people
- Sponsor
- I.M. Sechenov First Moscow State Medical University
Pneumonia, Pneumocystis Carinii, HIV Infections
Comparison of Trimetrexate Plus Leucovorin Calcium Rescue Versus Sulfamethoxazole-Trimethoprim in the Treatment of Pneumocystis Carinii Pneumonia (PCP) in Patients With AIDS
To compare the safety and effectiveness of an investigational drug therapy (trimetrexate plus leucovorin calcium) with that of conventional therapy (sulfamethoxazole-trimethoprim) in the treatment of moderately severe…
- Trial name
- NCT00001013
- Testing
- Trimetrexate glucuronate, Pentamidine isethionate, Sulfamethoxazole-Trimethoprim
- Where
- 23 sites in United States
- Volunteers
- 364 people
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Chronic Kidney Disease-Mineral and Bone Disorder
Neutrophil Gelatinase-associated Lipocalin VS Vascular Calcification in Maintenance Hemodialysis Patients
The goal of this observational study or clinical trial is to learn about the effect of neutrophil gelatinase-associated lipocalin (NGAL) on vascular calcification in maintenance hemodialysis patients with secondary…
- Trial name
- NGAL (NCT05720273)
- Testing
- palicalcitol
- Where
- China
- Volunteers
- 80 people
- Sponsor
- Xiaoyan Jia
Chronic Kidney Disease, End Stage Renal Disease
Klotho Gene Polymorphism in Dialyzed Patients With Hyperphosphatemia
Patients with chronic kidney disease (CKD) and those with end-stage renal disease (ESRD) undergoing renal replacement therapies show elevated serum phosphate levels which predispose them to cardiovascular calcifications and high…
- Conditions
- Chronic Kidney Disease, End Stage Renal Disease, Hyperphosphatemia, Renal Osteodystrophy
- Trial name
- NCT00374712
- Where
- France
- Volunteers
- 40 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
Hypocalcemia, Vitamin D Deficiency
The Impact of Vitamin D Deficiency on Hypocalcaemia Following Total Thyroidectomy
Post-operative hypocalcaemia following total thyroidectomy is a well-known complication and becoming a major area of research. Many factors are assumed to increase the incidence of post-thyroidectomy hypocalcaemia, but the impact…
- Trial name
- NCT03063060
- Testing
- vitamin D levels and Calcium levels examination
- Volunteers
- 60 people
- Sponsor
- Hillel Yaffe Medical Center
Phosphate Diabetes, X-linked Hypophosphatemia
Phosphorus-31 Spectroscopy in Phosphate Diabetes
Phosphate diabetes is defined by urinary phosphate wasting due to impaired tubular reabsorption. It can be classified based on either a genetic or acquired origin.
- Trial name
- Phos-ATP (NCT06921720)
- Testing
- intra-muscular ATP values in phosphate diabetes, intra-muscular phosphate values in phosphate diabetes
- Where
- 2 sites in France
- Volunteers
- 65 people, healthy volunteers welcome
- Sponsor
- Hospices Civils de Lyon