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Study identifier: NCT05749094 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Optic Nerve Sheath Ultrasound in Giant Cell Arteritis

Condition: Giant Cell Arteritis · Anterior Ischemic Optic Neuropathy · Optic Neuropathy, Ischemic  ·  Sponsor: Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal

PhaseN/A
Planned participants285
Who can joinAll sexes, 50 Years to 99 Years
Healthy volunteersNo

About this study

The Sonographic Assessment of the Optic Nerve Sheath in Giant Cell Arteritis (SONIC-GCA) study will evaluate the performance of the optic nerve sheath diameter (ONSD), measured via ultrasound, to diagnose and monitor GCA. SONIC-GCA builds upon our previous pilot studies and will answer the following questions: 1. What is the performance of ONSD to identify patients with new-onset, active GCA? 2. Is ONSD useful for monitoring GCA relapses during follow-up? 3. What is the intra- and interobserver reliability of ONSD measurements? 4. Does ONSD differ between patients with and without GCA-related retinal findings?

This description comes directly from the study's public registry record.

Talk to the study team

Jean-Paul Makhzoum, MD  ·  5143382222  ·  jean-paul.makhzoum@umontreal.ca

Always discuss trial participation with your own doctor first.

Locations (6)

St-Joseph's Health Care LondonLondon, Ontario, CanadaNot Yet Recruiting
Sinai Health - TorontoToronto, Ontario, CanadaNot Yet Recruiting
MUHC - McGill UniversityMontreal, Quebec, CanadaNot Yet Recruiting
Vasculitis Clinic, Hopital du Sacre-Coeur de MontrealMontreal, Quebec, CanadaRecruiting
CIUSSS de l'Est-de-l'ile de MontrealMontreal, Quebec, CanadaNot Yet Recruiting
CIUSSS de l'Estrie - CHUSSherbrooke, Quebec, CanadaNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT05749094