Clinical trials: Calcium
Colorectal Cancer
Calcium: Magnesium Balance, Microbiota, and Necroptosis and Inflammation
Transient receptor potential melastatin 7 (TRPM7), a magnesium (Mg) -regulated chanzyme possessing both ion channel and kinase activities, has a much stronger affinity to Mg2+ than calcium (Ca)2+.
- Trial name
- NCT04229992
- Testing
- Magnesium glycinate
- Where
- United States
- Volunteers
- 250 people, healthy volunteers welcome
- Sponsor
- Vanderbilt University Medical Center
Healthy Volunteers
Effect of Calcium 500 mg and Vitamin D3 1000 IU Chewable Tablet on Intestinal Calcium Absorption
The purpose of this study is to demonstrate that the intestinal absorption of calcium from a novel calcium carbonate-vitamin D3 chewable tablet formulation (calcium 500 milligrams (mg) and vitamin D3 1000 International Units…
- Trial name
- NCT02338713
- Testing
- Calcichew D3, Noncarbonated Water
- Where
- France
- Volunteers
- 27 people, healthy volunteers welcome
- Sponsor
- Takeda
Hypertension, Vitamin D Deficiency
Blood Pressure in Blacks and Calcium (BBC) and Vitamin D Study
Adequate levels of vitamin D are essential for bone health at all ages but low levels of vitamin D may also negatively impact other aspects of health such as blood pressure.
- Trial name
- BBC (NCT03070483)
- Testing
- Cholecalciferol
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- Loyola University
Gene Expression
Gene Expression Study Between Two Dermal Injectables Hydroxylapatite Semi-permanent Filler
To compare gene expression stimulated by a semi-permanent filler and a biostimulator via punch biopsy
- Trial name
- Sculptra (NCT05620043)
- Testing
- Sculptra, Radiesse Plus
- Where
- United States
- Volunteers
- 21 people, healthy volunteers welcome
- Sponsor
- Galderma R&D
Healthy
Calcium Retention as Influenced by Dietary Components That Induce an Acid Load
The impact of protein sources such as beef as part of Western diet on calcium retention remains controversial. We propose to test the hypothesis that the positive effect of high protein intake (especially from meat protein) can…
- Trial name
- NCT00620763
- Testing
- High Meat - High Potential Renal Acid Load (PRAL) diet, Low Protein - Low Potential Renal Acid Load (PRAL) diet
- Where
- United States
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- USDA Grand Forks Human Nutrition Research Center
Dentin Sensitivity
A Clinical Study to Evaluate the Anti-Sensitivity Effect of a Calcium Sodium Phosphosilicate Toothpaste in a Population of Dentin Hypersensitivity Sufferers
The aim of this study is to confirm the clinical dentin hypersensitivity (DH) efficacy of a 5 percent (%) calcium sodium phosphosilicate (CSPS) toothpaste.
- Trial name
- NCT06378008
- Testing
- CSPS toothpaste, Regular fluoride toothpaste (Crest Cavity Protection)
- Where
- Canada
- Volunteers
- 217 people, healthy volunteers welcome
- Sponsor
- HALEON
Osteoporosis
The Effect of Protein on Calcium Absorption and Gastric Acid Production
We have established that dietary protein is an important regulator of intestinal calcium absorption in humans. However, we do not understand the mechanism by which dietary protein is affecting calcium absorption.
- Trial name
- NCT00719160
- Testing
- esomeprazole
- Where
- United States
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Yale University
Caries, Dental Pulp Exposure
Calcium Hydroxide, Mineral Trioxide Aggregate and Biodentine (Trademark) as Direct Pulp Capping of Permanent Teeth
Background: Dental caries is considered an oral health problem worldwide. In Chile the last national epidemiological study (2007) showed a national prevalence of dental caries in children 6 years (70.3%) and 12 (62.5%).
- Trial name
- NCT02492841
- Testing
- Mineral trioxide aggregate, Calcium hydroxide, Biodentine
- Where
- Chile
- Volunteers
- 169 people, healthy volunteers welcome
- Sponsor
- Universidad de los Andes, Chile
Osteoporosis, Osteopenia
Does Treatment of Hypovitaminosis D Increase Calcium Absorption?
The purpose is to perform a one-year study designed to assess whether treatment of hypovitaminosis D increases intestinal absorption of calcium, subsequent retention of calcium within bone, decreases bone turnover, and favorably…
- Conditions
- Osteoporosis, Osteopenia, Vitamin D Deficiency, Hypoparathyroidism
- Trial name
- NCT00581828
- Testing
- Vitamin D
- Where
- United States
- Volunteers
- 19 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Calcinosis Cutis
Efficacy of Intralesional Sodium Thiosulfate Versus Intralesional Saline for Dystrophic and Idiopathic Calcinosis Cutis
The purpose of our research is to compare the effectiveness of 125mg/50ml sodium thiosulfate (STS) solution to normal saline (0.9% sodium chloride) when injected intralesionally for the treatment of calcinosis cutis.
- Trial name
- NCT03639779
- Testing
- Sodium Thiosulfate, Saline Solution
- Where
- United States
- Volunteers
- 5 people, healthy volunteers welcome
- Sponsor
- University of Central Florida
Drug-induced QT Prolongation, Pharmacokinetics
Ability of Late Sodium or Calcium Current Block to Balance the ECG Effects of Potassium Current Block
The primary objective of this research study is to test the hypothesis that late sodium current blocking drugs (mexiletine or lidocaine) can attenuate the effect of hERG potassium channel blocking drugs (dofetilide) on…
- Conditions
- Drug-induced QT Prolongation, Pharmacokinetics, Pharmacodynamics
- Trial name
- NCT02308748
- Testing
- Dofetilide, Mexiletine, Lidocaine
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Food and Drug Administration (FDA)
Contraception
Investigation of Bioequivalence of Ethinylestradiol (EE) and Drospirenone (DRSP) in Two Different Tablet Formulations: YAZ and YAZ + Levomefolate Calcium (Metafolin) & L-5-MTHF in Two Different Tablet Formulations: Levomefolate Calcium (Metafolin) and YAZ + Levomefolate Calcium (Metafolin)
The purpose of this study is examine and compare the uptake of YAZ (oral contraceptive containing drospirenone and ethinylestradiol) with or without levomefolate calcium (Metafolin, a registered vitamin supplement) in the body…
- Trial name
- NCT01253187
- Testing
- EE 0.02 mg/DRSP 3 mg (YAZ, BAY86-5300), EE 0.02 mg/DRSP 3 mg/L-5-MTHF Ca 0.451 mg (EE20/DRSP/L-5-MTHF Ca), L-5-MTHF 0.451mg (Metafolin)
- Where
- Netherlands
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Bayer
Hypercholesterolemia
Actual Use Trial of Atorvastatin Calcium 10 mg
The purpose of this actual use study is to simulate the over the counter use of atorvastatin calcium 10 mg.
- Trial name
- NCT01964326
- Testing
- Atorvastatin calcium 10 mg
- Where
- 37 sites in United States
- Volunteers
- 1,311 people, healthy volunteers welcome
- Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
Rheumatoid Arthritis, Crohn's Disease
Tumor Necrosis Factor Decreases Vitamin D Dependant Calcium Absorption
This study is a pilot study to determine whether patients with TNFα excess have decreased calcium absorption in response to calcitriol (1,25-dihydroxyvitamin D, the active form of vitamin D) compared to normal controls.
- Trial name
- NCT00427804
- Testing
- calcitriol
- Where
- United States
- Volunteers
- 9 people, healthy volunteers welcome
- Sponsor
- Atlanta VA Medical Center
Vitamin D Deficiency
Treatment of Vitamin D Insufficiency
The purpose of this study is to answer the following questions: Does vitamin D increase calcium absorption, bone mass and muscle mass and function in women past menopause who have mildly low vitamin D levels? Do these benefits…
- Trial name
- NCT00933244
- Testing
- High Dose Vitamin D3, Low Dose Vitamin D3
- Where
- United States
- Volunteers
- 230 people, healthy volunteers welcome
- Sponsor
- University of Wisconsin, Madison
Osteoporosis, Sarcopenia
Effect of Potassium Bicarbonate Supplementation on Bone and Muscle in Older Adults
There is increasing evidence that the acid-base balance of diet plays an important role in the health of bones and muscles. An excess of acid in the body can result in calcium loss and muscle breakdown.
- Trial name
- NCT00357214
- Testing
- Potassium Bicarbonate, Sodium Bicarbonate, Potassium Chloride
- Where
- United States
- Volunteers
- 171 people, healthy volunteers welcome
- Sponsor
- Tufts University
Caries
Anti-caries Potential of a Sodium Monofluorophosphate and Calcium Sodium Phosphosilicate Dentifrice
In situ study to compare treatment effect on enamel remineralization potential, measured by surface microhardness recovery (SMHR) and Enamel Fluoride Uptake (EFU).
- Trial name
- NCT01657877
- Testing
- Calcium sodium phosphosilicate, Sodium monoflurophosphate
- Where
- United States
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- GlaxoSmithKline
Glucose Intolerance, Type 2 Diabetes Mellitus
Vitamin D and Calcium Homeostasis for Prevention of Type 2 Diabetes
The purpose of the randomized trial is to quantify the effect of vitamin D and calcium supplementation on beta-cell function, insulin sensitivity, glucose tolerance and systemic inflammation and other cardiometabolic outcomes in…
- Conditions
- Glucose Intolerance, Type 2 Diabetes Mellitus, Metabolic Syndrome
- Trial name
- CaDDM (NCT00436475)
- Testing
- Vitamin D3 2,000 IU orally once daily, Calcium Carbonate 400 mg orally twice daily
- Where
- United States
- Volunteers
- 92 people, healthy volunteers welcome
- Sponsor
- Tufts Medical Center
Unexplained Infertility, Polycystic Ovarian Syndrome
Nimodipine to Prevent LH Surge During Ovulation Induction: Blinded Placebo-controlled RCT
The main purpose of this study is to test the effectiveness of nimodipine in preventing a luteinizing hormone (LH) surge in women undergoing ovulation induction with clomiphene citrate.
- Conditions
- Unexplained Infertility, Polycystic Ovarian Syndrome, Anovulatory
- Trial name
- NIMO (NCT01672801)
- Testing
- Nimodipine
- Where
- United States
- Volunteers
- 18 people, healthy volunteers welcome
- Sponsor
- Boston IVF
Atherosclerosis, Plaque, Atherosclerotic
Assessment of Coronary Artery Calcium in Active Duty Enlisted Military Members With 10 or More Years of Service
Hypothesis: Enlisted military members with 10 or more years of service and at least one cardiovascular risk factor will demonstrate a higher risk of future cardiac events as assessed by coronary artery calcium (CAC) scoring than…
- Trial name
- NCT02009930
- Where
- United States
- Volunteers
- 112 people, healthy volunteers welcome
- Sponsor
- David Grant U.S. Air Force Medical Center