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CompletedNCT06067932Updated Oct 10, 2023

Foot Disorders in X-linked Hypophosphatemia

An observational study in X-linked Hypophosphatemia, sponsored by Orthopedic Hospital Vienna Speising. Completed at 1 site in Austria. Open to participants aged 16 Years to 100 Years. Per ClinicalTrials.gov, last updated 2023-10-10.

Sponsored by Orthopedic Hospital Vienna Speising · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
28
Ages
16 Years to 100 Years
Sex
All
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Study summary

This study aimed to characterize foot pathologies using X-rays and clinical examination and assess related outcome scores in adolescents and adults with X-linked Hypophophatemia

Read the detailed description

A single center, cross-sectional analysis of adolescent and adult patients with XLH with and without previous surgical intervention was performed at the Orthopaedic Hospital Speising, Vienna, Austria. Clinical examination, quality of life questionnaires and radiographic data of foot x-rays in standing position were collected. Radiographic evaluation was performed to analyze foot deformity as well as signs of osteoarthritis at the foot.

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Conditions studied

  • X-linked Hypophosphatemia

Keywords

  • foot and ankle
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In context

Familial Hypophosphatemic Rickets

49 studies on the registry are indexed under Familial Hypophosphatemic Rickets; 8 are open to participants now.

This study's enrollment of 28 is below the median of 50 across 16 observational studies indexed under Familial Hypophosphatemic Rickets.

Browse Familial Hypophosphatemic Rickets studies →

Lead sponsor

Orthopedic Hospital Vienna Speising is the lead sponsor of 9 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
16 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with rare bone disease (XLH) with and without foot problems

Eligibility criteria

Inclusion Criteria: - Patients with confirmed XLH, ≥ 16 years were invited to participate in this study

Exclusion Criteria:

  • Exclusion criteria were other forms of hypophosphatemia, pregnancy and recent lower limb surgery within 3 months.
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Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
28 participants (actual)
Target follow-up
1 Day
Patient registry
Yes

Interventions

  • RadiationFoot X rays

    Radiographs of ankle and foot anteroposterior/dorsoplantar were taken in standing position with a centralized beam on the ankle joint.

  • Diagnostic testClinical examination + scores

    The American Orthopedic Foot and Ankle Society Score (AOFAS- midfoot section and 1st Forefoot ray, Forefoot ray 2-5) and the foot function index (FFI) were assessed

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What researchers measure

Primary outcomes

  1. Number of feet with signs of osteoarthritis

    radiographic signs of osteoarthritis at the foot joints

    Time frame: baseline

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Study locations

1 site
  • Orthopedic Hospital Speising Vienna
    Vienna, 1130, Austria
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 10, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06067932
Lead sponsor
Orthopedic Hospital Vienna Speising
Responsible party
Forian Wenzel-Schwarz (Orthopedic surgeon, Orthopedic Hospital Vienna Speising) — Principal investigator
First posted
Oct 5, 2023
Start date
Jul 1, 2020
Primary completion
Jul 1, 2021
Completion
Jul 1, 2021
Last update
Oct 10, 2023

Study contacts

Gabriel Mindler, Dr
study chair · Orthopedic Hospital Speising Vienna

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2023. You cannot join it, but the record below documents what was studied.

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