Clinical trials: Dietary Calcium Deficiency
X-linked Hypophosphatemia (XLH)
Retrospective and Prospective Disease Progression and Quality of Life in XLH
There is limited empirical data documenting disease progression and impact on quality of life for patients with X-linked hypophosphatemia (XLH).
- Trial name
- NCT04049877
- Testing
- None - Observational study
- Where
- United Kingdom
- Volunteers
- 11 people
- Sponsor
- Medialis Ltd.
Magnesium Deficiency, Calcium Metabolism Disorders
How Does Magnesium Status Influence Calcium Homeostasis?
The investigators aim to recruit 60 women who have agreed to participate in an existing randomized, double-blind, placebo-controlled trial (Treatment of Vitamin D Insufficiency, HSC 2009-0055).
- Trial name
- NCT01593501
- Testing
- vitamin D3
- Where
- United States
- Volunteers
- 39 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
X-Linked Hypophosphatemic Rickets
Effect of Burosumab on the Inflammatory Profile of Patients With X-linked Hypophosphatemic Rickets FLAM-XLH
X-linked hypophosphataemia (XLH) is a rare genetic disorder associated with increased circulating levels of the hormone FGF23, most commonly through mutation of the PHEX gene.
- Trial name
- FLAM-XLH (NCT06248632)
- Testing
- Expression of inflammatory markers (Il6, Il8, Il1β, CXCL1, CCL2, CXCR3, Il1R, Il6R)
- Volunteers
- 20 people
- Sponsor
- Hospices Civils de Lyon
Chronic Kidney Disease-Mineral and Bone Disorder
To Investigate the Bone and Muscle Abnormalities in Patients With Chronic Kidney Disease With MRI
Patients with chronic kidney disease (CKD) have a higher risk of fractures than those without. The purpose of this study is to develop a non-invasive Magnetic resonance imaging (MRI) method that can improve fracture risk…
- Trial name
- NCT04564924
- Testing
- DXA
- Where
- China
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Tongji Hospital
Hyperphosphatemia
The Effect of Oral Niacinamide on Plasma Phosphorus Levels in Peritoneal Dialysis Patients
Hyperphosphatemia is common in the peritoneal dialysis population. Current strategies are insufficient to optimize phosphorus control.
- Trial name
- NCT00508885
- Testing
- Niacinamide
- Where
- United States
- Volunteers
- 17 people
- Sponsor
- Washington University School of Medicine
Pseudohypoparathyroidism, Growth Hormone Deficiency, Dwarfism
Evaluation of rhGH Replacement Therapy in Patients With Pseudohypoparathyroidism Type Ia (PHP Ia)
We have recently demonstrated resistance to GHRH leading to GH deficiency in patients with Pseudohypoparathyroidism type Ia (Mantovani et al., J Clin Endocrinol Metab, 2003. 88: 4070-4074).
- Trial name
- NCT00497484
- Testing
- recombinant human somatotropin
- Where
- Italy
- Sponsor
- University of Milan
End Stage Renal Disease, Hyperparathyroidism, Secondary
Mineral and Bone Disorders Outcomes in Stage 5D of Chronic Kidney Disease
The MBD-5D is a prospective observational study with a case-cohort and a cohort design. Eligible patients are receiving hemodialysis and have secondary hyperparathyroidism.
- Trial name
- MBD-5D (NCT00995163)
- Where
- Japan
- Volunteers
- 8,020 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Hypocalcemia
Vitamin D Deficiency and Postoperative Hypocalcemia
Hypocalcemia is a frequent adverse event after thyroidectomy. It is usually related to hypoparathyroidism, but preoperative hypocalcemia, hypomagnesemia or vitamin D deficiency contributes to it.
- Trial name
- NCT01632514
- Testing
- Cholecalciferol
- Where
- Brazil
- Volunteers
- 90 people
- Sponsor
- University of Sao Paulo General Hospital
Hyperphosphatemia
The Effect of Oral Niacinamide on Serum Phosphorus Levels in Hemodialysis Patients
Elevated phosphorus levels are a common problem in dialysis patients. However, it is associated with an increase in death and hospitalizations.
- Trial name
- NCT00316472
- Testing
- Niacinamide
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Washington University School of Medicine
Renal Osteodystrophy, Chronic Kidney Diseases
Precision Medicine Approaches to Renal Osteodystrophy
Treatment of renal osteodystrophy is impeded by the lack of practical and accurate tools to determine underlying bone turnover. Gold standard bone biopsy is not practical in the clinic for the vast majority of kidney disease…
- Conditions
- Renal Osteodystrophy, Chronic Kidney Diseases, CKD-MBD, Bone Turnover Rate Disorder
- Trial name
- PMaROD (NCT05880914)
- Testing
- miRNAseq analysis, Standard treatment for bone disorder
- Where
- United States
- Volunteers
- 40 people
- Sponsor
- Thomas Nickolas
X-linked Hypophosphatemic Rickets/Osteomalacia
A Study of KRN23 in Pediatric Patients With X-linked Hypophosphatemic Rickets/Osteomalacia
Before switching to the post-marketing study: To evaluate the efficacy and safety of KRN23 administered subcutaneously once every 2 weeks in children with X-linked hypophosphatemic rickets/osteomalacia(XLH).
- Trial name
- NCT03233126
- Testing
- KRN23
- Where
- 4 sites in Japan
- Volunteers
- 16 people
- Sponsor
- Kyowa Kirin Co., Ltd.
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
Hypophosphatasia
Safety and Efficacy Study of ENB-0040 in Juvenile Patients With Hypophosphatasia (HPP)
This Clinical Trial is being conducted to study Hypophosphatasia (HPP), a bone disorder caused by gene mutations or changes. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT00894075
- Testing
- ENB-0040
- Sponsor
- Alexion Pharmaceuticals, Inc.
Hypocalcemia, Rickets
Studies With 1,25-Dihydroxycholecalciferol
Vitamin D in the diet undergoes changes in the liver and kidneys to several forms. Patients suffering from disorders with Vitamin D resistance are unable to absorb calcium from food.
- Trial name
- NCT00001151
- Testing
- 1,25-Dihydroxycholecalciferol
- Where
- United States
- Volunteers
- 6 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Total Thyroidectomy, Hypocalcemia
Prevention of Postoperative Hypocalcemia of Oral Vitamin D Supplementation Before Total Thyroidectomy
The hypocalcemia after total thyroidectomy is one of common surgical complications. It may be asymptomatic, but patients can complain of dysfunction around the mouth or extremities, stiffness or convulsion in severe cases.
- Conditions
- Total Thyroidectomy, Hypocalcemia, Vitamin D Deficiency
- Trial name
- NCT05216419
- Testing
- Cholecalciferol
- Where
- 2 sites in South Korea
- Volunteers
- 108 people
- Sponsor
- Seoul National University Hospital
Secondary Hyperparathyroidism, Chronic Kidney Disease
Study to Assess Patient Management Practices and Quality of Life With Paricalcitol Capsules in the Treatment of Secondary Hyperparathyroidism in Stage 3-5 Chronic Kidney Disease Patients Not Yet on Dialysis
Paricalcitol capsules (Zemplar®) received marketing authorization in Sweden in late 2007 for the prevention and treatment of secondary hyperparathyroidism in patients with Stage 3 \& 4 Chronic Kidney Disease (CKD).
- Trial name
- CAPITOL (NCT01265992)
- Where
- 10 sites in Sweden
- Volunteers
- 50 people
- Sponsor
- AbbVie (prior sponsor, Abbott)
Secondary Hyperparathyroidism, Chronic Kidney Disease Mineral and Bone Disorder
Impact of Parathyroidectomy on Cardiovascular Calcification in Dialysis-dependent Patients
This is a prospective cohort study aimed to evaluate change of cardiovascular calcification after parathyroidectomy in patients with end-stage renal disease on dialysis compared with control group on conservative treatment.
- Conditions
- Secondary Hyperparathyroidism, Chronic Kidney Disease Mineral and Bone Disorder, Vascular Calcification, Dialysis
- Trial name
- NCT03937349
- Where
- Russia
- Volunteers
- 63 people
- Sponsor
- Saint Petersburg State University, Russia
X-Linked Hypophosphatemia
Efficacy and Safety of Burosumab Versus Oral Phosphate and Active Vitamin D Treatment in Pediatric Patients With XLH
The primary objective of this study is to evaluate the effect of KRN23 (burosumab) therapy in improving rickets in children with XLH compared with active control (oral phosphate/active vitamin D).
- Trial name
- NCT02915705
- Testing
- burosumab, Oral Phosphate Supplement, active vitamin D
- Where
- 16 sites in United States, Australia and 5 more
- Volunteers
- 61 people
- Sponsor
- Kyowa Kirin, Inc.
Bullosa Epidermolysis, Vitamin D Deficiency
Vitamin D Status and Bone Metabolism Status in Children With Congenital Epidermolysis Bullosa
This retrospective prospective study is aimed at studying the level of vitamin D supply and identifying markers of bone tissue remodeling in order to develop approaches to the prevention of osteopenia and osteoporosis in children…
- Conditions
- Bullosa Epidermolysis, Vitamin D Deficiency, Osteoporosis, Osteopenia
- Trial name
- NCT05141838
- Testing
- Vitamin D, Oral nutritional supplement
- Where
- Russia
- Volunteers
- 110 people
- Sponsor
- National Medical Research Center for Children's Health, Russian Federation
Hypophosphatasia
Open-Label Study of Asfotase Alfa in Infants and Children ≤ 5 Years of Age With Hypophosphatasia (HPP)
This clinical trial was conducted to study hypophosphatasia (HPP), a bone disorder caused by gene mutations or changes. These gene mutations cause low levels of an enzyme needed to harden bone.
- Trial name
- NCT01176266
- Testing
- asfotase alfa
- Where
- 23 sites in United States, Australia and 10 more
- Volunteers
- 69 people
- Sponsor
- Alexion Pharmaceuticals, Inc.