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Recruiting NCT03478761

NCT03478761 24-Hydroxylase Deficiency and CYP24A1 Mutation Patient Registry

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Clinical Trial Summary
NCT ID NCT03478761
Status Recruiting
Phase
Sponsor Mayo Clinic
Condition 24-hydroxylase Deficiency
Study Type OBSERVATIONAL
Enrollment 600 participants
Start Date 2017-10-19
Primary Completion 2030-12

Eligibility & Interventions

Sex All sexes
Min Age N/A
Max Age N/A
Study Type OBSERVATIONAL

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 600 participants in total. It began in 2017-10-19 with a primary completion date of 2030-12.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

You are being asked to take part in this research registry because you or your family member is suspected to have a 24-hydroxylase deficiency.

Eligibility Criteria

Inclusion Criteria: Patients who have undergone genetic testing for a CYP24A1 mutation with at least 3 of the following: * Urinary Stone Disease * Nephrocalcinosis * Metabolic Bone Disease * Serum Calcium \>/= 9.6 mg/dL * Parathyroid hormone (PTH) \< 30 pg/mL * 1,25-dihydroxyvitamin D \> 40 pg/mL OR a family member of a patient who meets the above criteria Exclusion Criteria: Patients who have tested negative for a CYP24A1 mutation with an alternative diagnosis that might explain hypercalcemia/hypercalciuria/stone disease: * Sarcoidosis * Lymphoma * Tuberculosis * Fungal infections * Excessive exogenous calcium or vitamin D intake

Contact & Investigator

Central Contact

Barb M Seide, CCRP

✉ seide.barbara@mayo.edu

📞 507-255-0387

Principal Investigator

David Sas, MD

PRINCIPAL INVESTIGATOR

Mayo Clinic

Frequently Asked Questions

Who can join the NCT03478761 clinical trial?

This trial is open to participants of all sexes, studying 24-hydroxylase Deficiency. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT03478761 currently recruiting?

Yes, NCT03478761 is actively recruiting participants. Contact the research team at seide.barbara@mayo.edu for enrollment information.

Where is the NCT03478761 trial being conducted?

This trial is being conducted at Rochester, United States.

Who is sponsoring the NCT03478761 clinical trial?

NCT03478761 is sponsored by Mayo Clinic. The principal investigator is David Sas, MD at Mayo Clinic. The trial plans to enroll 600 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology