Comparing surgical and endovascular treatments for middle cerebral artery aneurysms

Middle Cerebral Artery Aneurysm Trial: A Randomized Care Trial Comparing Surgical and Endovascular Management of MCA Aneurysm Patients

Not applicable Interventional University of Alberta · NCT05161377

This study is testing whether surgery or a less invasive procedure is better for treating middle cerebral artery aneurysms in adults.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment400 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Alberta Academic / other
Locations1 site (Edmonton)
Trial IDNCT05161377 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of surgical versus endovascular management for middle cerebral artery (MCA) aneurysms, which are often challenging to treat due to their unique anatomical features. The study aims to gather evidence on the best management approach for both ruptured and unruptured MCA aneurysms, as current data is limited and inconclusive. Patients aged 18 and older with documented MCA aneurysms will be evaluated for eligibility, and both treatment options will be considered based on the clinical judgment of the treating team. The trial will assess clinical outcomes and complications associated with each treatment method.

Who should consider this trial

Good fit: Ideal candidates include adults aged 18 and older with documented MCA aneurysms, whether ruptured or unruptured, who are suitable for either surgical or endovascular treatment.

Not a fit: Patients with absolute contraindications to contrast material, AVM-associated aneurysms, or those unable to provide consent may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide clearer guidance on the optimal treatment for middle cerebral artery aneurysms, potentially improving patient outcomes.

How similar studies have performed: While there have been studies on aneurysm treatments, this trial specifically addresses the unique challenges of MCA aneurysms, making it a novel approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients at least 18 years of age
* At least one documented, intradural, intracranial aneurysm anywhere on the course of the MCA vessel, ruptured or unruptured. An untreated ruptured aneurysm (with delay in diagnosis) which is suspected to have occurred more than 30 days prior to study inclusion will be considered an unruptured aneurysm
* In the case of SAH, WFNS grade 4 or less
* The patient and aneurysm are considered appropriate for either surgical or endovascular treatment by the treating team

Exclusion Criteria:

* Patients with absolute contraindications administration of contrast material (any type)
* Patients with AVM-associated aneurysms
* Patients or caregivers unable to provide consent
* Poor grade (WFNS 5) ruptured aneurysms

Where this trial is running

Edmonton

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Middle Cerebral Artery AneurysmIntracranial aneurysms
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.