San Raffaele registry of adults receiving vitamin D treatment
Official title: Prospective Monocentric Registry of Patients Undergoing Vitamin D Treatment at San Raffaele Hospital
Run by IRCCS San Raffaele · NCT06481111 · Data updated 2026-11-12
This project will see how vitamin D supplements are used and affect adults with low vitamin D who attend the San Raffaele outpatient clinic.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 1000 (estimated) |
| Sponsor | IRCCS San Raffaele Academic / other |
| Locations | 1 site (Milan) |
| Status | Recruiting |
| Started | July 10, 2024 |
| Main results expected | December 30, 2029 |
| Study ends | December 1, 2034 |
| Registry record updated | April 8, 2026 |
| Trial ID | NCT06481111 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults aged 18 and over seen at the San Raffaele Endocrinology outpatient clinic who are starting or receiving any vitamin D supplementation and can provide informed consent.
✕Probably not a fit
People under 18, individuals unable to provide informed consent, and patients treated outside San Raffaele or not receiving vitamin D supplementation are not eligible and unlikely to benefit from this registry.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is a prospective, single-center registry enrolling adult patients undergoing vitamin D supplementation at the IRCCS Ospedale San Raffaele Endocrinology outpatient unit. About 1,000 patients will be enrolled and clinical, laboratory, and medical history data will be collected during routine visits according to standard diagnostic and therapeutic protocols. Treatments are prescribed as part of usual care, with the registry passively recording formulations, dosages, outcomes, and potential risk factors. Data collection will continue through 2029 with follow-up data retained for up to ten years to describe epidemiological trends and management patterns for hypovitaminosis D.
Why it matters
Potential benefit: If successful, the registry could help clinicians target vitamin D prescribing more effectively and better identify patients at risk of deficiency.
How similar studies have gone: Similar observational registries and cohort studies on vitamin D have generated useful epidemiological and risk-factor data but cannot prove causality for clinical outcomes.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Adult men and women (age ≥ 18 years) regardless of fertility status and pregnancy/breastfeeding conditions * Vitamin D supplementation, with any formulation and dosage * Signing of informed consent Exclusion Criteria: * Patients unable to understand and sign informed consent.
Where it's running
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IRCCS Ospedale San Raffaele
Milan, Italy Recruiting
Study contacts
- Principal investigator: Luigi di Filippo, MD — IRCCS San Raffaele
- Study coordinator: Luigi Di Filippo, MD
- Email: difilippo.luigi@hsr.it
- Phone: +39022643
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.