An interventional study of Cholecalciferol sequential dose and Cholecalciferol daily dose in Transient Hypercalciuria, sponsored by University Hospital, Montpellier. Completed at 2 sites in France. Open to participants aged 2 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-02.
Sponsored by University Hospital, Montpellier · Not applicable, Interventional, and Prevention
Recommendations for vitamin D supplementation for subjets between 2 and 18 years offer strong sequential doses of vitamin D: 2 times 100 000 units in spaced winter period of 3 months. Data from the literature show a further increase in the incidence of oxalo-calcium stones in children and adolescents associated with hypercalciuria with training Randall plates, essential step lithogenesis calcium oxalate. Knowing the links between vitamin D and urinary calcium excretion, these data lead to the question of increased sensitivity in some children with vitamin D, sensitivity could explain these situations with hypercalciuria increase the gallstone risk. This increased sensitivity to vitamin D may unmask particularly if inputs of high doses of vitamin responsible then a transient hypercalciuria with development of microcrystals.
33 studies on the registry are indexed under Hypercalciuria; 4 are open to participants now.
This study's enrollment of 280 is above the median of 40 across 25 interventional studies indexed under Hypercalciuria.
Browse Hypercalciuria studies →University Hospital, Montpellier is the lead sponsor of 1,261 studies on the registry; 224 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The criteria were revised on the registry on Nov 2, 2026. See what changed
Inclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
cholecalciferol : 100 000 Unit International (UI), sequential dose (2 mL)
Drug: Cholecalciferol sequential dose
cholecalciferol : 1000 UI, daily dose during 28 days (0.1 ml by day)
Drug: Cholecalciferol daily dose
sequential dose administration of the treatment
Also known as: Vitamin D
daily dose administration of the treatment
Also known as: Vitamin D
Changes from calcium level in urines at day 7, day 14 and day 28
Time frame: day 7, day 14 and day 28
Plan to share: No
No publications or documents are linked to this record.
Ran from Dec 2017 to primary completion in Jun 2026, 101 months.
Since we started tracking on Sep 25, 2026, the dates moved once, on Nov 2, 2026: primary completion May 2024 → Jun 2026 and completion Dec 2024 → Jun 2026.
Earlier changes are on the record history on ClinicalTrials.gov ↗
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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Studies of the drug tested here: Vitamin D
University Hospital, Montpellier →