Clinical trials
Calcium clinical trials
Below are recruiting calcium clinical trials, each written for real people, not researchers. We’re tracking 170 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07577570Recruiting
Calcium Treatment After Thyroid Surgery
This study tests whether calcium supplements help patients whose parathyroid glands aren't working properly after thyroid surgery. The parathyroid glands control calcium levels in your body, and they can be accidentally injured during thyroid removal.
Tallinn, OtherAges 18 years+ - NCT06568315RecruitingPhase 3
Calcium plus multivitamins for mother and baby
This study tests whether taking a daily multivitamin with calcium, in addition to standard prenatal vitamins, improves iron levels and health for you and your baby. You would switch from your usual iron folic acid pills to the study supplements.
OuagadougouAges 15 years+ - NCT06683833RecruitingPhase 4
Comparing materials for protecting tooth nerves in deep cavities
This study compares three materials used to protect the nerve inside a deep cavity. If you have a deep cavity in a live tooth, you may be able to join and help find which material works best.
CairoAges 22–45 - NCT07419854RecruitingPhase 4
Restoring facial fullness after GLP-1 weight loss with Radiesse
This trial tests whether a facial filler called Radiesse can restore volume lost during weight loss from GLP-1 medications (like Wegovy or Mounjaro). It's for adults just starting GLP-1 therapy who expect to lose 20 pounds or more and want to see if fillers can help their face look fuller.
Pasadena, CaliforniaAges 21–65 - NCT06196515RecruitingPhase 2/Phase 3
Study of a new nano-medication for infected tooth root canals
This trial tests whether a nano-scale calcium hydroxide paste works better than standard treatments for tooth infections. If you have a permanent molar with signs of infection around the root tip, this study may be an option.
CairoAges 21–49 - NCT06330246Recruiting
Study on gut bacteria for calcium kidney stones
This study looks at whether a specific gut bacteria called Oxalobacter formigenes can help people who form calcium oxalate kidney stones. You will eat a controlled diet and provide samples to see how your body handles oxalate, a substance that can lead to stones.
Birmingham, AlabamaAges 18–70 - NCT06331546Recruiting
Gut oxalate absorption in calcium oxalate stone patients
This study looks at how much oxalate (a substance in many foods) gets absorbed by the gut in people who form calcium oxalate kidney stones. You will eat a controlled diet and provide urine and blood samples over a few days.
Birmingham, AlabamaAges 18–70 - NCT06660524RecruitingPhase 4
Calcium-phosphorus therapy for heart valve disease
This trial tests a treatment to lower high calcium and phosphorus levels in your blood, which may slow down calcium buildup in heart valves. It may help people with kidney problems who have valve disease.
Beijing, Beijing MunicipalityAges 50 years+ - NCT06728462Recruiting
Calcium supplement study for postmenopausal women with osteoporosis
This study tests a new form of calcium (amorphous calcium carbonate) to see if it can improve bone density in postmenopausal women with osteoporosis. It may offer an alternative for women who cannot or choose not to take other osteoporosis medications.
Kaohsiung CityAges 60–90 - NCT06989320Recruiting
Oxalate production in calcium oxalate stone formers
This study looks at how the body makes oxalate (a natural substance that can form kidney stones) in people who have had calcium oxalate stones. You will eat a special diet and stop supplements for a short time to help researchers understand stone formation.
Birmingham, AlabamaAges 18–80 - NCT07068204Recruiting
Comparing two toothpastes to prevent cavities in healthy adults
This study tests whether a new 2% calcium hypophosphite toothpaste is better than standard fluoride toothpaste at preventing cavities. You may be able to join if you have healthy teeth and are willing to use an electric toothbrush and floss.
Bialystok, PolandAges 18–45 - NCT07641933RecruitingPhase 1
Root Canal Retreatment Dressing Comparison Study
This study compares different medicines placed inside root canals between appointments to help heal infections. You'll have a tooth retreated (cleaned and filled again) and help researchers find which dressing works best.
CairoAges 21–45 - NCT07671326Recruiting
Bioceramic vs calcium hydroxide for infected molars
This study compares two types of medication placed inside a root canal to fight infection. It may be an option if you have an infected lower molar and are in generally good health.
Istanbul, IstanbulAges 18–65 - NCT05795504Enrolling by invitation
Exercise program to improve calcium and vitamin D levels
This trial compares two exercise routines—resistance training versus high-intensity interval training (HIIT)—to see which better improves calcium intake and vitamin D levels in women. You may be able to join if you are 40–45, have low vitamin D, and are not using hormone therapy.
GizaAges 40–45 - NCT06573333Recruiting
Timing of cord clamping and calcium levels in newborns
This trial looks at whether when the umbilical cord is clamped (early or late) affects calcium levels in healthy full-term babies. It may help doctors choose the best timing for your baby's health.
Rawalpindi, Punjab ProvinceAges 1 minute–6 hours - NCT07748676Recruiting
Comparing two rinsing solutions for deep cavities with tooth pain
This study tests whether rinsing the inside of a painful tooth with a special solution (calcium hypochlorite or sodium hypochlorite) after removing the damaged nerve tissue helps preserve the tooth and reduce pain. It's for people with a deep cavity causing severe toothache, and may help avoid a root canal or tooth loss.
Rohtak, HaryanaAges 18–40 - NCT05958342RecruitingPhase 2
Calcium and vasopressin for bleeding shock after major injury
This trial tests whether giving calcium and vasopressin early can improve outcomes in people with major injury who are at risk for life-threatening bleeding shock. It mainly includes patients who need rapid blood transfusion and likely major surgery to stop bleeding.
Chandler, ArizonaAges 18–90 - NCT06235749Recruiting
Calcium gluconate to reduce bleeding during planned C-section
This study tests whether giving calcium gluconate during a planned cesarean can reduce blood loss. It may be an option for women who are at least 35 weeks pregnant and have no conditions that affect calcium or heart rhythm.
BeershebaAges 18 years+ - NCT03249012Recruiting
Quality of life after thyroid surgery for low calcium
This study looks at how different treatment plans affect quality of life in people who develop low calcium after thyroid surgery. You may be asked to complete questionnaires to compare how you feel with each treatment approach.
Québec, QuebecAges 18 years+ - NCT06643468Enrolling by invitation
ALB-PRF with bone grafts for immediate dental implants
This trial tests whether using a special protein-rich blood product (ALB-PRF) with two different types of putty-like bone grafts helps improve the success of dental implants placed right after a tooth is removed in the front upper jaw. It may help people who need a tooth replaced in the 'smile zone' and have good oral health.
Al MansurahAges 20–60 - NCT07638358RecruitingEarly Phase 1
Bone filler to preserve jaw structure after tooth removal
This early-stage trial tests a bone-filling material called Neobone® placed in the socket after tooth extraction to help maintain jawbone volume. This is important because losing bone after tooth removal can make future implants or dentures difficult to fit.
Caparica, Monte Da CaparicaAges 18 years+ - NCT07711132Recruiting
Remineralizing toothpaste for early cavities in teens
This trial tests three different treatments for repairing very early cavities on tooth enamel: a nano-eggshell paste, a special milk protein paste (CPP-ACP), and a standard fluoride paste. It is for teenagers and young adults who have a few small spots of early decay and a moderate to high risk of getting cavities.
Al MansurahAges 15–20 - NCT06021080Recruiting
Comparing kidney dialysis patterns on calcium levels with citrate blood thinner
This study compares different patterns of continuous kidney dialysis (called CRRT) to see how they affect calcium levels in the blood when using a citrate-based blood thinner. It may help find the safest way to manage calcium during treatment.
Fuzhou, FujianAges 18–100 - NCT07241013Recruiting
Amniotic membrane dressing for C-section wound healing
This trial tests a special dressing made from amniotic membrane (the thin sac that surrounds a baby in the womb) and calcium alginate, placed on the C-section incision to help it heal better. It is for women having a planned C-section for a medical reason (like breech baby or previous C-section scar).
AlmatyAges 18 years+
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Common questions
- Are there clinical trials for calcium?
- Yes. Clin2 currently lists 170 recruiting calcium studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a calcium trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a calcium trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.