CI

At a glance

ClinicalIndex Comparison Record
Early Ph 1Completed· 16 enrolled
Drug / intervention
Calcitrioldrug
Likely dose
Not stated in record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT03748966
NCT03748966Early Ph 1Completed

Calcitriol Monotherapy for X-Linked Hypophosphatemia: Effects on Mineral Ions, Growth and Skeletal Parameters

Massachusetts General Hospital·interventional·Posted Nov 21, 2018·Updated May 7, 2026

In Brief

A Early Phase 1 clinical trial evaluating Calcitriol for X-linked Hypophosphatemia and 2 related conditions. Completed, enrolled 16 participants across 1 site.

Detailed Summary

Children and adults with XLH recruited will be treated with calcitriol alone (without phosphate supplementation) for one year, during which the calcitriol dose will be escalated during the first 3 months of therapy. The investigators hypothesize that treatment of adults and children with XLH alone will improve serum phosphate levels and skeletal mineralization without causing an increase in kidney calcifications. The study will also examine if calcitriol therapy will improve growth in children.

Study Details

Timeline

Early Ph 1CompletedFinished
20192020202120222023202420252026
First PostedNov 21, 2018
Enrollment StartMar 28, 2019
Primary CompletionMar 1, 2025
Study CompletionFeb 26, 2026
TodayJul 2, 2026
Enrollment to primary: 5.9 yearsPosted 7.6 years ago

Interventions

Calcitrioldrug

Adults and children (age 3-17) with X-linked hypophosphatemia will be treated with calcitriol therapy without phosphate supplementation. Doses of calcitriol will be escalated and optimized in the first three months of the study. Calcitriol is an oral medication taken once a day.