Calcium is named as an intervention in 3 current clinical trials in our Germany, Canada and Israel registers. 3 are recruiting patients now. The most common phase is Not applicable. The sponsor with the most trials is Nicolas Schlegel (1). The most-studied condition is Postoperative Hypoparathyroidism. The EU clinical trials register (CTIS) separately lists 1 authorised or ongoing trial.
| Study | Phase | Status | Lead sponsor | Registers |
|---|---|---|---|---|
|
Low Sodium Oxybate in Patients With Idiopathic Hypersomnia
NCT05837091 · ClinicalTrials.gov ↗ · Idiopathic Hypersomnia
|
Phase 4 | Recruiting | Mayo Clinic | Israel |
|
Effect of Extracellular Calcium on Carbetocin Mediated Contractility in Human Myometrium
NCT06930391 · ClinicalTrials.gov ↗ · Postpartum Hemorrhage (Primary)
|
Not applicable | Recruiting | Samuel Lunenfeld Research Institute, Mount Sinai Hospital | Canada |
|
PRESS -PAR: Early Detection and PREvention of Symptomatic postSurgical hypoPARathyroidism After Thyroid Surgery"
NCT07491601 · ClinicalTrials.gov ↗ · Postoperative Hypoparathyroidism, Postsurgical Hypoparathyroidism, Hypoparathyroidism Post-surgical
|
Not applicable | Recruiting | Nicolas Schlegel | Germany |
Registers list studies that are recruiting, about to open, active but closed to enrolment, or enrolling by invitation. The UK and USA registers cover industry-sponsored studies only. Trial titles and statuses are copied from the registry as published.
Authorised or ongoing trials in the EU Clinical Trials Information System that list a product containing Calcium. Many trials are registered in both CTIS and ClinicalTrials.gov, so these are shown separately rather than added to the count above. Trials with a site in Ireland are listed first.
| Study | Phase | Status | Sponsor | Countries |
|---|---|---|---|---|
|
Evaluation of the Impact of a Strategy of Perioperative NSAID Suppression in Patients Undergoing Video-assisted Thoracic Surgery (VATS) on the Presence of Chronic Postoperative Pain (CPOP): a Randomised Clinical Trial (EVADRAINS)
2025-524917-96-00 · Not possible to specify
|
Phase 3 | Authorised | Les Hopitaux Universitaires De Strasbourg | France |
The same active substance in our other registers, matched by its exact name. Each entry links to the register record it comes from.
4 single-substance products containing Calcium on the HPRA medicines list.
| Lead sponsor | Trials |
|---|---|
| Nicolas Schlegel | 1 |
| Samuel Lunenfeld Research Institute, Mount Sinai Hospital | 1 |
| Mayo Clinic | 1 |
| Register | Trials | Recruiting |
|---|---|---|
| Clinical trials in Germany | 1 | 1 |
| Clinical trials in Canada | 1 | 1 |
| Clinical trials in Israel | 1 | 1 |
| EU register (CTIS) | 1 | — |
A trial with sites in more than one country appears in each of those registers. CTIS does not publish a recruiting flag; its trials may also appear in the registers above.
3 current trials in our Germany, Canada and Israel registers name Calcium as a drug or biological intervention, as of the registry sync on 26 September 2026. Completed and withdrawn studies are not counted.
Yes. 3 of the 3 trials are recruiting: 1 with sites in Germany, 1 with sites in Canada and 1 with sites in Israel. Eligibility and site contacts are on each trial's record. Only the study team can confirm whether a patient is eligible.
Nicolas Schlegel (1), Samuel Lunenfeld Research Institute, Mount Sinai Hospital (1) and Mayo Clinic (1). The number in brackets is how many trials each organisation leads.
Yes. The HPRA medicines list includes 4 single-substance products containing Calcium, for example Calrecia 100 mmol/l, solution for infusion (Fresenius Medical Care Deutschland GmbH). A licence does not mean a product is currently marketed or reimbursed; see each product's record.
The registers we track list 3 entries for Calcium: US FDA: resolved; US FDA: resolved; 1 German notice. Shortages are product- and country-specific; check with a pharmacist.
Every trial, status, phase and sponsor on this page is copied from public ClinicalTrials.gov records by a daily sync. Nothing here describes how Calcium works or whether it is effective, and it is not medical advice.
Everything on this page is copied from public ClinicalTrials.gov registry records — it is not written from memory, and nothing here describes how Calcium works or whether it is effective. Each trial links to its own record so you can check it yourself.
This page is built automatically: a daily sync job reads the registry records behind our country trial registers, collects every trial that lists Calcium (or a registered synonym) as a drug or biological intervention, and tabulates the registry fields directly. Placebos and generic comparators are excluded. There is no AI drafting and no per-compound editorial pass, and the page has not been clinically reviewed. The “last verified” date above is the timestamp of that sync, not a review date. Our general editorial approach is described in our editorial standards and corrections policy. The ClinicalTrials.gov data on this page was last retrieved on 26 Sep 2026.