Clinical trials: Calcium Disorder
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
Obesity
The Effect of Calcium on Fecal Fat and Energy Excretion
The overall purpose of this study is to examine the effect of calcium on fecal fat and energy excretion.
- Trial name
- NCT00519909
- Testing
- Dairy calcium
- Where
- Denmark
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- University of Copenhagen
Dental Caries
Long-term Release of Fluoride Formed on Enamel by Fluoride Gel or Varnish to Biofilm Fluid
The anticaries effect of professional fluoride application has been associated with the formation of calcium fluoride-like products ("CaF2") on dental surface, which may function as a slow release fluoride reservoir.
- Trial name
- NCT02486458
- Testing
- 5% sodium fluoride varnish, 1.23% sodium fluoride acidic gel
- Where
- Brazil
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- University of Campinas, Brazil
Healthy
Bioavailability Study of Amlodipine Besylate/Atorvastatin Calcium Tablets 10/80 mg Under Fasting Condition
This study is to assess the bioequivalence between Amlodipine besylate/Atorvastatin calcium Tablets 10mg/80mg of Dr. Reddy's Laboratories Limited, India and CADUET® (amlodipine besylate and atorvastatin calcium) tablets 10mg/80mg…
- Trial name
- NCT02295046
- Testing
- Amlodipine besylate/Atorvastatin calcium
- Where
- Germany
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Dr. Reddy's Laboratories Limited
Kidney Stone, Kidney Calculi
Gut Oxalate Absorption in Calcium Oxalate Stone Disease
The goal of this clinical trial study is to test if patients with idiopathic calcium oxalate kidney stones have an increased absorption of dietary oxalate, which would lead to increased urinary excretion of oxalate.
- Conditions
- Kidney Stone, Kidney Calculi, Urolithiasis, Urolithiasis, Calcium Oxalate
- Trial name
- NCT06331546
- Testing
- Low-oxalate diet, High-oxalate diet, soluble oxalate gut absorption test
- Where
- 2 sites in United States
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- University of Alabama at Birmingham
Hepatitis C, Hypertension
A Drug Interaction Study of Boceprevir in Combination With Amlodipine or Diltiazem in Healthy Volunteers
The purpose of this study is to evaluate the pharmacokinetic interactions between the hepatitis C NS3 protease inhibitor boceprevir and the calcium channel blockers amlodipine and diltiazem in healthy volunteers.
- Trial name
- NCT01549496
- Testing
- Amlodipine, Diltiazem
- Where
- Canada
- Volunteers
- healthy volunteers welcome
- Sponsor
- Ottawa Hospital Research Institute
Spinal Muscular Atrophy, Fragile X Syndrome
Early Check: Expanded Screening in Newborns
Early Check provides voluntary screening of newborns for a selected panel of conditions. The study has three main objectives: 1) develop and implement an approach to identify affected infants, 2) address the impact on infants and…
- Conditions
- Spinal Muscular Atrophy, Fragile X Syndrome, Fragile X - Premutation, Duchenne Muscular Dystrophy
- Trial name
- NCT03655223
- Testing
- Confirmatory Testing
- Where
- United States
- Volunteers
- 30,000 people, healthy volunteers welcome
- Sponsor
- RTI International
Vitamin D Deficiency
Vitamin D Deficiency and Placental Calcification in Low-risk Obstetric Population - Are They Related?
Maternal vitamin D deficiency has been suggested to influence fetal and neonatal health. The role of placenta in vitamin D regulation is known but alteration of Vitamin D levels at placental pathologies is unknown.
- Trial name
- NCT02190396
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Zekai Tahir Burak Women's Health Research and Education Hospital
Osteoporosis
Fructooligosaccharide and Calcium Absorption in Adolescent Girls
Fructooligosaccharides (FOS) are believed to have positive effects on calcium absorption and bone accrual during growth. This study aims to see whether the addition of fiber in the form of FOS to a calcium-containing beverage…
- Trial name
- NCT01005927
- Testing
- Fructooligosaccharide
- Where
- United States
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Purdue University
Pregnancy, Long QT Syndrome
Ventricular Repolarization During the Pregnancy-to-Postpartum Transition (QuTe)
Pregnancy and the postpartum period are accompanied by marked changes in heart rate, circulating hormones, and electrolyte balance that may influence ventricular repolarization.
- Trial name
- QuTe (NCT02931695)
- Testing
- Evaluation of QT interval duration, Circulating sex hormones levels sample
- Where
- France
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- French Cardiology Society
HIV Infections, Cardiovascular Diseases
Interactions Between HIV Protease Inhibitors and Calcium Channel Blockers
Diltiazem CD and amlodipine are drugs used to treat heart disease and high blood pressure. The purpose of this study is to find out if these drugs interact with the anti-HIV drugs indinavir and ritonavir.
- Conditions
- HIV Infections, Cardiovascular Diseases, Hypertension
- Trial name
- NCT00039975
- Testing
- Indinavir sulfate, Ritonavir, Amlodipine
- Where
- 9 sites in United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)
Vitamin D Deficiency, Low Bone Density
Nursing-Home Residents Given Bread Fortified With Vitamin D3
Background. For older adults, serum 25-hydroxyvitamin D (25(OH)D) higher than 75 nmol/L lowers fracture risk and attainment of this 25(OH)D target may require 125 mcg (5000 IU)/d of vitamin D3.
- Trial name
- NCT00789503
- Testing
- Bread fortified with vitamin D3 and calcium
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Toronto
Other Disorders of Bone Development and Growth
Assessing the Impact of Contraceptives on Bone Health Using 41Ca
This preclinical randomized crossover study will examine the effects of oral versus non-oral contraceptive therapy on bone turnover in young exercising women.
- Trial name
- NCT02367846
- Testing
- Combined Oral Contraceptive (COC), Contraceptive Vaginal Ring (CVR)
- Where
- United States
- Volunteers
- 6 people, healthy volunteers welcome
- Sponsor
- Penn State University
Post-Operative Pain, Chronic, Necrotic Pulp
Propolis Versus Calcium Hydroxide on Post-Operative Pain in Patients With Necrotic Pulp
Propolis is a resinous product of honeybees. Propolis is said to be effective against resistant microorganisms inside the root canal compared to the gold standard medication known as calcium hydroxide.
- Trial name
- NCT04983524
- Testing
- propolis, Calcium Hydroxide
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Cairo University
Colorectal Neoplasms
Study of Folic Acid, Calcium and Vitamin D in Preventing Colorectal Polyps and Colorectal Cancer
Folic acid (FA) and its derivatives (folate) which play a role in nucleotide synthesis and methylation reactions as well as calcium and vitamin D are assumed to be effective in the prevention of colorectal polyps and Colorectal…
- Trial name
- NCT02066688
- Testing
- folic acid, folic acid calcium vitamin D3, calcium
- Where
- China
- Volunteers
- 2,400 people, healthy volunteers welcome
- Sponsor
- Shanghai Jiao Tong University School of Medicine
Urolithiasis
ButOx Human Trial: An Open Label Prospective Cohort Study to Investigate the Effect of Tributyrin (Butyrate Precursor Molecule) Supplementation on Markers of Calcium Oxalate Nephrolithiasis
Kidney stone disease (KSD) is a condition where there are crystal deposits in the kidney. The gut microbiome is a community of gut bacteria which can produce substances such as short chain fatty acids (SCFAs).
- Trial name
- ButOx (NCT07004257)
- Testing
- tributyrin
- Where
- Canada
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- University of British Columbia
Osteoporosis, Osteopenia
Encouraging Calcium Absorption and Bone Formation During Early Puberty
Increasing bone mass during puberty can ultimately decrease the risk of developing osteoporosis, which causes bones to weaken and break more easily later in life.
- Trial name
- NCT00022867
- Testing
- Nondigestible oligosaccharide (NDO)
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Baylor College of Medicine
Osteoporosis
Effect of High-Calcium Milk and Weight-Bearing Exercise on Bone Mineral Status of Pre-Pubertal Girls
Osteoporosis has been described as a paediatric disease with a geriatric outcome. This is because bone mass is acquired during youth and is progressively lost later in life, without symptom or pain, until a fracture occurs.
- Trial name
- Bone Health (NCT00979511)
- Testing
- milk and exercise
- Where
- Philippines
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Nutrition Center of the Philippines
Osteoporosis
To Estimate Relative Bioavailability of 5 Formulations of Ronacaleret Given to Healthy Postmenopausal Females
This study will examine the effects of formulation on the relative bioavailability of SB-751689 (400 mg) administered to healthy postmenopausal women.
- Trial name
- NCT00651534
- Testing
- Ronacaleret
- Where
- United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Alopecia Areata
A Study of Vitamin D in Subjects With Alopecia Areata
The objective of this study is to assess the parathyroid-vitamin D-calcium axis in subjects with alopecia areata. The hypothesis behind this study is that hypovitaminosis D might contribute to the pathogenesis of alopecia areata.
- Trial name
- NCT01328678
- Where
- United States
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Avera McKennan Hospital & University Health Center