Calcium Clinical Trials

23 recruitingLast updated: May 13, 2026

There are 23 actively recruiting calcium clinical trials across 17 countries. Studies span Not Applicable, Phase 4. Top locations include Dallas, Texas, United States, Birmingham, Alabama, United States, Calgary, Alberta, Canada. Updated daily from ClinicalTrials.gov.


Calcium Trials at a Glance

23 actively recruiting trials for calcium are listed on ClinicalTrialsFinder across 6 cities in 17 countries. The largest study group is Not Applicable with 12 trials, with the heaviest enrollment activity in Dallas, Birmingham, and Calgary. Lead sponsors running calcium studies include University of Alabama at Birmingham, Population Health Research Institute, and I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio.

Browse calcium trials by phase

Treatments under study

About Calcium Clinical Trials

Looking for clinical trials for Calcium? There are currently 1 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Calcium trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Calcium clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 23 trials

Recruiting
Not Applicable

Evaluation of A Clinical Diagnostic Test for CRDS

Calcium Release Deficiency Syndrome (CRDS)
Population Health Research Institute400 enrolled18 locationsNCT06188689
Recruiting
Not Applicable

Comparative Study of Caries-Preventive Effects: 2% Calcium Hypophosphite Toothpaste vs. Sodium Fluoride Toothpaste (1450ppm F)

Caries,DentalCalcium HypophosphiteFluoridation
Dr. Joachim Enax164 enrolled2 locationsNCT07068204
Recruiting

The Orienting Study

GoutCPPD - Calcium Pyrophosphate Deposition Disease
I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio450 enrolled1 locationNCT07504146
Recruiting
Not Applicable

Comparative Evaluation of the Effects of Calcium Hydroxide and BIO-C Temp Medicaments on Postoperative Pain in Patients Undergoing Endodontic Treatment: a Clinical Study

Postoperative PainCalcium HydroxideRoot Canal Retreatment+1 more
Ankara University60 enrolled2 locationsNCT07396688
Recruiting
Phase 4

Comparison Between Egyptian MTA, Biodentine Versus Calcium Hydroxide as Indirect Pulp Capping Materials In Permanent Teeth

Patient Reported Outcome MeasuresCalcium HydroxideDeep Caries+3 more
Cairo University35 enrolled1 locationNCT06683833
Recruiting
Not Applicable

Multiple-Visit RCT in Teeth With SAP: Interappointment Dressing or Not?

Endodontically Treated TeethCalcium Hydroxide
Aristotle University Of Thessaloniki110 enrolled1 locationNCT06447519
Recruiting

International CRDS Registry

Calcium Release Deficiency Syndrome
Population Health Research Institute500 enrolled16 locationsNCT06508164
Recruiting

CAMK2-related Synapthopathies Natural History Study

CAMK2Calcium/Calmodulin-dependent Protein Kinase 2
Erasmus Medical Center150 enrolled1 locationNCT07372833
Recruiting

Free Vitamin D and Steroid Metabolism in Endocrine Disorders

Vitamin DVitamin D and Calcium Homeostasis
Universitaire Ziekenhuizen KU Leuven930 enrolled1 locationNCT07268742
Recruiting
Not Applicable

A Single-Center Clinical Study on the Efficacy and Safety of VISOR

Kidney StoneUrolithiasis, Calcium Oxalate
Second Affiliated Hospital, School of Medicine, Zhejiang University20 enrolled1 locationNCT07071948
Recruiting

Study of the Adequacy Between Calcium Supplementation and Dietary Intake in Treatment-naive Patients After a Fracture

Osteoporosis, Post-TraumaticCalcium SupplementationOsteoporosis, Management Care, Fracture
Centre Hospitalier de Colmar100 enrolled1 locationNCT06847087
Recruiting
Not Applicable

Endogenous Oxalate Synthesis in Idiopathic Calcium Oxalate Kidney Stone Disease

HealthyHealthy VolunteerKidney Stones+6 more
University of Alabama at Birmingham80 enrolled2 locationsNCT06989320
Recruiting
Not Applicable

O. Formigenes Colonization in Calcium Oxalate Kidney Stone Disease

NephrolithiasisKidney StoneUrolithiasis+5 more
University of Alabama at Birmingham40 enrolled2 locationsNCT06330246
Recruiting
Not Applicable

Gut Oxalate Absorption in Calcium Oxalate Stone Disease

HealthyNephrolithiasisKidney Stone+6 more
University of Alabama at Birmingham80 enrolled2 locationsNCT06331546
Recruiting
Not Applicable

Impact of Vascular Calcification and CASR Expression by Monocytes in Septic Shock

InflammationSeptic ShockCalcium Sensing Receptor+2 more
Centre Hospitalier Universitaire, Amiens66 enrolled1 locationNCT06853340
Recruiting

The Osteoarticular Manifestations in Patients With Gitelman Syndrome

Gitelman SyndromeCPPD - Calcium Pyrophosphate Deposition Disease
Second Affiliated Hospital, School of Medicine, Zhejiang University120 enrolled1 locationNCT06922370
Recruiting
Phase 4

Hydroxycitrate: A Novel Therapy for Calcium Phosphate Urinary Stones

Calcium Phosphate Kidney Stones
University of Texas Southwestern Medical Center25 enrolled1 locationNCT06003348
Recruiting
Not Applicable

A Study of Amorphous Calcium Carbonate in Postmenopausal Women

bone mineral densityOsteoporosisCalcium+2 more
Universal Integrated Corp.205 enrolled1 locationNCT06728462
Recruiting
Phase 4

Calcium-Phosphorus Regulation Therapy on Heart Valve Disease

Chronic Kidney Disease(CKD)Degenerative Heart Valve DiseaseHeart Valve Calcification+1 more
China National Center for Cardiovascular Diseases196 enrolled1 locationNCT06660524
Recruiting
Not Applicable

Effects of Timing of Cord Clamping on Serum Calcium Levels in Neonates

Serum Calcium Concentration
College of Physicians and Surgeons Pakistan200 enrolled1 locationNCT06573333