Clinical trials: Calcium and Vitamin D Deficiencies
X-linked Hypophosphatemia (XLH)
Prevention of Spontaneous Dental Abscesses in Children With X-linked Hypophosphatemia : a RCT
This study is a prospective, randomized, single-blind, split-mouth, national multicenter trial, comparing the efficacy of a self-etch adhesive system combined (SAM) with a flowable composite to that of a fluoride varnish for the…
- Trial name
- PRADEX (NCT04872907)
- Testing
- adhesive system, fluoride varnish, flowable composite
- Volunteers
- 60 people
- Sponsor
- Assistance Publique - Hôpitaux de Paris
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.
CKD, Renal Insufficiency Chronic
The CPH-MBD Cohort Dietary Substudy - Comparison of Methods for Dietary Registrations
The aim of the study is to assess the association between the calcium and phosphorus balance and the stage of kidney disease measured by creatinine clearence in patients with chronic kidney disease stage 4 and 5.
- Conditions
- CKD, Renal Insufficiency Chronic, CKD-MBD - Chronic Kidney Disease Mineral and Bone Disorder, Pre-dialysis
- Trial name
- NCT07312981
- Where
- 2 sites in Denmark
- Volunteers
- 50 people
- Sponsor
- University of Copenhagen
Hypocalcemia, Pseudohypoparathyroidism
Studies of States With Resistance to Vitamin D and Parathyroid Hormone
Patients with confirmed or suspected states with resistance to vitamin D or parathyroid hormone (PTH) will be admitted for diagnosis, treatment review with suggestions for modifications to the current or new treatment and for…
- Conditions
- Hypocalcemia, Pseudohypoparathyroidism, Osteomalacia, Rickets
- Trial name
- NCT00001242
- Where
- United States
- Volunteers
- 70 people
- Sponsor
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Hypophosphatemia, Familial, Hyperparathyroidism
Effectiveness of Paricalcitol in Reducing Parathyroid Hormone (PTH) Levels in X-linked Hypophosphatemic Rickets
The purpose of this study is to determine the effectiveness of paricalcitol, a form of synthetic vitamin D, in lowering parathyroid hormone (PTH) levels and reducing disease symptoms in children and adults with X-linked…
- Trial name
- NCT00417612
- Testing
- Paricalcitol
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Yale 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
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
Osteomalacia
Serum Prolidase Activity and the Role of Leptin in Osteomalacia
Evaluation of the change of serum Prolidase and Leptin values in the diagnosis and follow-up of osteomalacia and its clinical usability
- Trial name
- NCT05716750
- Testing
- Vitamin D
- Volunteers
- 38 people
- Sponsor
- TUĞBA ŞAHBAZ
Vitamin D Deficiency, Vascular Calcification
Effects of Cholecalciferol on Osteoprotegerin Levels in Patients on Peritoneal Dialysis
Aim: To investigate whether cholecalciferol (4800 U/daily) or placebo for 16 weeks reduces proteins levels associated with vascular calcification (osteoprotegerin, osteopontin, osteocalcin) in patients treated with peritoneal…
- Conditions
- Vitamin D Deficiency, Vascular Calcification, Renal Insufficiency, End Stage Renal Failure on Dialysis
- Trial name
- NCT02598635
- Testing
- Cholecalciferol
- Where
- Mexico
- Volunteers
- 58 people
- Sponsor
- Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran
X-linked Hypophosphatemia
Using Different Doses of Active Vitamin D Combined With Neutral Phosphate in Children With X-linked Hypophosphatemia
X-linked hypophosphatemia (XLH) is the most common form of heritable rickets. Current treatments include active vitamin D metabolites (e.g. calcitriol) and phosphate salts.
- Trial name
- NCT03820518
- Testing
- Calcitriol
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Peking Union Medical College Hospital
Vitamin D Deficiency, Malnutrition
Optimizing Treatment Programs for Chronic Kidney Disease-mineral and Bone Disorder and Malnutrition
Multi-center, prospective, randomized, controlled study to verify the clinical effectiveness of K / DOQI guidelines. The efficiency and safety of Vitamin D2 and low protein diet treatment for prevention and treatment of CKD-MBD…
- Trial name
- NCT02005302
- Testing
- 1,25(OH)2 Vitamin D3, Vitamin D2, low protein diet
- Where
- 5 sites in China
- Volunteers
- 600 people
- Sponsor
- Wenhu Liu
Osteogenesis Imperfecta, Rare Bone Disorders
Morphology in Oral Rare Syndromes & Artificial Intelligence for Clinical Diagnosis
MOSAIC aims to determine whether oro-dental morphological anomalies, particularly palatal morphology, associated with rare bone and cartilage diseases can be precisely characterized using 3D digital models analysed through…
- Conditions
- Osteogenesis Imperfecta, Rare Bone Disorders, Hypophosphatemia, X-Linked
- Trial name
- MOSAIC (NCT07666269)
- Testing
- intra-oral 3D optical impression
- Where
- France
- Volunteers
- 240 people, healthy volunteers welcome
- Sponsor
- University Hospital, Bordeaux
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
X-linked Hypophosphatemia (XLH)
Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia
The purpose of this study is to better understand how X-linked hypophosphatemia (XLH) affects the body and daily life. Phosphate levels are critical in managing XLH, we aim to study how these levels change in patients taking…
- Trial name
- IBIS XLH (NCT07607600)
- Testing
- No treatment given
- Where
- 23 sites in United States, Australia and 6 more
- Sponsor
- Novo Nordisk A/S
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.
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
Renal Osteodystrophy
Systematic Study of Parameters of Chronic Kidney Disease Mineral and Bone Disorder (CKD-MBD)
Bone and mineral disease is a key problem in patients with kidney disease. The available clinical parameters are non-specific, unproven for the assessment of the bone metabolism and do not reflect the complexity and diversity of…
- Trial name
- BoneX (NCT02556216)
- Where
- Germany
- Volunteers
- 100 people
- Sponsor
- Hannover Medical School
Tumor Induced Osteomalcia, Osteomalacia
A Natural History Study of Bone and Mineral Disorders
This study has four objectives: 1) to provide investigators the opportunity to study bone specimens from patients with various skeletal diseases; 2) to treat patients with skeletal diseases at the NIH; 3) to expose NIH trainees…
- Conditions
- Tumor Induced Osteomalcia, Osteomalacia, Familial Tumoral Calcinosis
- Trial name
- NCT00024804
- Where
- United States
- Volunteers
- 1,000 people
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
Renal Osteodystrophy
12-month Study of AMG 073 in Renal Osteodystrophy
4 doses of AMG 073 or placebo over 52 weeks after a 30-day screening period. Throughout the study, labs will be drawn to measure analytes such as iPTH and corrected calcium.
- Trial name
- NCT00527085
- Testing
- AMG 073
- Volunteers
- 45 people
- Sponsor
- Amgen
Osteomalacia, Neoplasms
Catheterization to Locate Mesenchymal Tumors in Patients With Tumor-Induced Osteomalacia or Oncogenic Osteomalacia
This study will use a procedure called selective venous catheterization in patients with tumor-induced osteomalacia (TIO) or oncogenic osteomalacia (OOM) to try to locate very small tumors that produce proteins called…
- Trial name
- NCT00099762
- Where
- United States
- Volunteers
- 45 people
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)