Clinical trials: Parathyroid Dysfunction
Osteoporosis, Secondary Hyperparathyroidism
Calcium and Vitamin D Malnutrition in Elderly Women
This study is designed to test whether calcium supplementation alone or calcium plus vitamin D reduces the incidence of fractures, reduces high parathyroid secretory activity, and halts bone loss in a population-based sample of…
- Trial name
- NCT00352170
- Testing
- calcium supplementation, calcium and vitamin D3 supplementation
- Volunteers
- 1,180 people, healthy volunteers welcome
- Sponsor
- Creighton University
Primary Hyperparathyroidism, Bone Diseases, Metabolic
Radius Loading in Primary Hyperparathyroidism
The purpose of the study is to determine the effect of forearm exercise on forearm bone density in post-menopausal women with or without primary hyperparathyroidism.
- Conditions
- Primary Hyperparathyroidism, Bone Diseases, Metabolic, Osteoporosis, Postmenopausal, Bone Loss, Postmenopausal
- Trial name
- NCT01571843
- Testing
- Forearm exercise program, Walking program
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Columbia University
Chromosome 22q11.2 Deletion Syndrome
Genetics and Psychopathology in the 22q11 Deletion Syndrome
The purposes of this study are to: 1. study the nature and longitudinal course of psychiatric symptoms in children with the 22q11.2 deletion syndrome and 2. identify genes that contribute to the occurrence of these symptoms.
- Trial name
- NCT00161109
- Where
- 2 sites in United States, Netherlands
- Volunteers
- 175 people, healthy volunteers welcome
- Sponsor
- UMC Utrecht
Chronic Kidney Failure, Secondary Hyperparathyroidism
Paricalcitol Oral Therapy in Predialysis CKD Patients. The Greek Experience
The purpose of this study is to obtain data on the use of Zemplar (paricalcitol) capsules in real-life clinical practice in predialysis patients with chronic kidney disease (CKD) and secondary hyperparathyroidism.
- Trial name
- PROTECT (NCT01083186)
- Where
- 24 sites in Greece
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- AbbVie (prior sponsor, Abbott)
Hyperparathyroidism, Chronic Kidney Disease
Sevelamer and Secondary Hyperparathyroidism in Chronic Kidney Disease
The hypothesis underlying this study is that phosphate interferes with PTH-mediated calcium reabsorption in the distal nephron and thereby necessitates supranormal [PTH]to maintain normocalcemia in chronic kidney disease.
- Trial name
- NCT01191762
- Testing
- sevelamer carbonate
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Kenneth R. Phelps, M.D.
Phosphorus and Calcium Disorders, Parathyroid Diseases
Serum Calcium to Phosphorous (Ca/P) Ratio in the Diagnosis of Ca-P Metabolism Disorders: a Multicentre Study
Primary hyperparathyroidism (PHPT) and Hypoparathyroidism (HP) are two of the most frequent disorder of Calcium-Phosphorus (Ca-P) metabolism.
- Conditions
- Phosphorus and Calcium Disorders, Parathyroid Diseases, Hyperparathyroidism, Hypoparathyroidism
- Trial name
- NCT03747029
- Testing
- No intervention is provided
- Where
- Italy
- Volunteers
- 1,038 people, healthy volunteers welcome
- Sponsor
- Azienda Ospedaliero-Universitaria di Modena
Primary Hyperparathyroidism
Effects of Parathyroidectomy on Cardiovascular Risk Factors in Primary Hyperparathyroidism
Primary hyperparathyroidism (PHPT) is associated with increased cardiovascular morbidity. The benefit of surgical treatment in this respect is unclear.
- Trial name
- NCT01057732
- Where
- Israel
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- HaEmek Medical Center, Israel
Hyperparathyroidism, Hypercalcemia
Oral Peptones Load in Normocalcemic and Hypercalcemic Primary Hyperparathyroidism and Healthy Subjects
The purpose of this study is to assess if subjects with hyperparathyroidism with normal serum calcium levels have different responses in the calcium regulating hormonal handling compared to a) patients with primary…
- Trial name
- NCT01042626
- Testing
- Oral peptones load
- Where
- Italy
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- University of Eastern Piedmont
Secondary Hyperparathyroidism, Hypocalcemia
Bioequivalency Study of Calcitriol Tablets Under Fasting Conditions
The objective of this study was to assess the bioequivalence of Roxane Laboratories' Calcitriol capsules, 0.25 mcg, to ROCALTROL® capsules, 0.25 mcg (Roche) using a single-dose, 2-treatment, 2-period, crossover design, under…
- Trial name
- NCT00601328
- Testing
- Calcitriol
- Where
- United States
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Roxane Laboratories
Pituitary ACTH Hypersecretion, Acromegaly
Vitamin D Metabolism in Patients With Endocrine Disorders
This prospective controlled interventional study aims to reveal the diversity of vitamin D metabolism in patients with certain endocrine disorders (Cushing's disease, acromegaly, primary hyperparathyroidism, diabetes mellitus…
- Conditions
- Pituitary ACTH Hypersecretion, Acromegaly, Diabetes Mellitus, Type 1, Primary Hyperparathyroidism
- Trial name
- NCT04844164
- Testing
- Cholecalciferol 15000 UNT/ML Oral Solution
- Where
- Russia
- Volunteers
- 261 people, healthy volunteers welcome
- Sponsor
- Endocrinology Research Centre, Moscow
Thyroid Diseases, Parathyroid Diseases
Ropivacaine Plus Magnesium Sulphate Infiltration
In the domain of endocrine gland surgery, thyroidectomy is the most common procedure. Patients report moderate to severe discomfort postoperatively, which is induced by a variety of mechanisms, the most common of which are…
- Conditions
- Thyroid Diseases, Parathyroid Diseases, Postoperative Pain, Anesthesia, Local
- Trial name
- NCT05294393
- Testing
- Ropivacaine 10%, Ropivacaine 10% plus magnesium sulphate 10mg/kg
- Where
- Greece
- Volunteers
- 68 people, healthy volunteers welcome
- Sponsor
- Aristotle University Of Thessaloniki
Hypoparathyroidism
Predicting Risk Factors of Postoperative Hypocalcemia After Total Thyroidectomy
With increasing economic pressures to shorten the length of hospital stay, there has been much recent interest in studying risk factors for the development of postoperative hypocalcemia.
- Trial name
- NCT04372225
- Testing
- analysis of hypocalcemia
- Where
- France
- Volunteers
- 477 people, healthy volunteers welcome
- Sponsor
- Aix Marseille Université
22q11 Deletion Syndrome, DiGeorge Syndrome
SNP-based Microdeletion and Aneuploidy RegisTry (SMART)
This multi-center prospective observational study is designed to track birth outcomes and perinatal correlates to the Panorama prenatal screening test in the general population among ten thousand women who present clinically and…
- Conditions
- 22q11 Deletion Syndrome, DiGeorge Syndrome, Trisomy 21, Trisomy 18
- Trial name
- SMART (NCT02381457)
- Where
- 21 sites in United States, Australia and 4 more
- Volunteers
- 20,960 people, healthy volunteers welcome
- Sponsor
- Natera, Inc.
Chronic Kidney Disease Mineral and Bone Disorder
Calcium Balance Studies in Children With CKD and on Dialysis
This is a novel, non-invasive method of assessing Ca balance by natural Ca isotope fractionation.
- Trial name
- Cal-Bal (NCT03285854)
- Testing
- Collection of blood, urine and stool samples
- Where
- United Kingdom
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Great Ormond Street Hospital for Children NHS Foundation Trust
Osteoporosis, Humoral Hypercalcemia of Malignancy
One Week Parathyroid Hormone-related Protein (PTHrP) IV Dose Escalation Study
This is a dose escalation study to determine the maximum tolerable dose of Parathyroid Hormone-related Protein, PTHrP, that can be given safely over one week.
- Conditions
- Osteoporosis, Humoral Hypercalcemia of Malignancy, Hyperparathyroidism
- Trial name
- NCT00580788
- Testing
- PTHrP (1-36)
- Where
- United States
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- University of Pittsburgh
22Q11 Deletion Syndrome
Mindfulness Program for Adolescents With 22q11DS
The goal of this study is to evaluate the effectiveness of the Aware Program, an online mindfulness education program, with adolescents with 22q11DS and their parents.
- Trial name
- NCT05849441
- Testing
- Aware Program
- Where
- United States
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Innovation Research & Training
Vitamin D Deficiency, Secondary Hyperparathyroidism
Characterization of Hyperparathyroidism and Vitamin D Deficiency in Obesity
Obese persons are known to have elevated levels of parathyroid hormone (PTH) and low levels of vitamin D. These hormones are important in regulation of the body's calcium stores and bone health.
- Conditions
- Vitamin D Deficiency, Secondary Hyperparathyroidism, Obesity
- Trial name
- NCT00288873
- Testing
- Ergocalciferol, Cholecalciferol
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Weill Medical College of Cornell University
Hypoparathyroidism, Hypoparathyroidism Postprocedural
Evaluation of iMmune Function in Post-surgical and AuToimmune HYpoparathyroidism (EMPATHY)
This is an observational pilot study for the evaluation of immune function, infectious diseases, psychometric status and quality of life in patients with hypoparathyroidism compared to healthy controls.
- Conditions
- Hypoparathyroidism, Hypoparathyroidism Postprocedural, Hypoparathyroidism Due to Impaired Parathormone Secretion
- Trial name
- EMPATHY (NCT04059380)
- Where
- Italy
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- University of Roma La Sapienza
22q11.2 Deletion Syndrome
Arithmetic Abilities in Children With 22q11.2DS
The study ARITH22 will investigate the role of visuo-spatial attention on arithmetic abilities of children with 22q11.2 deletion syndrome.
- Trial name
- ARITH22 (NCT04373226)
- Testing
- Magnitude comparison tasks and neuropsychological testing
- Where
- France
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- Hôpital le Vinatier
Chronic Kidney Disease Mineral and Bone Disorder
Phosphorus Absorption in Healthy Adults and in Patients With Moderate Chronic Kidney Disease
Chronic kidney disease (CKD) affects approximately 26 million Americans with many more at risk for disease development. Elevated serum phosphorus (P) and related abnormalities in P homeostasis due to progressive loss of kidney…
- Trial name
- NCT03108222
- Testing
- Phosphorus Absorption Test
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Purdue University