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NCT07050381: pAVM-rFA

The Risk Factors Related to Rupture Flow-related Aneurysms in Posterior AVM

Recruiting now Last updated 3 July 2025
What this trial tests

trial in Arteriovenous Malformation of Central Nervous System in 200 participants. Currently enrolling.

Timeline
13 June 2025
Primary endpoint
31 August 2025
31 December 2026

Quick facts

Lead sponsorThe First Affiliated Hospital with Nanjing Medical University
StatusRecruiting now
Study typeOBSERVATIONAL
Enrollment200
Start date13 June 2025
Primary completion31 August 2025
Estimated completion31 December 2026
Sites2 locations across China

Conditions studied

Sponsor

The First Affiliated Hospital with Nanjing Medical University

Who can join

Eligibility, any sex, with Arteriovenous Malformation of Central Nervous System or Aneurysm, Ruptured. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

AVMs have been reported to rupture at a formidable annual rate of 2% to 3% at natural progression, often resulting in longterm neurological deficits and poor functional outcomes.The reported risk of hemorrhagic presentation in patients with AVMs is 41% to 65%. While many studies suggest a correlation between higher hemorrhage risk and the concurrent presence of AVM and aneurysms, few authors have focused specifically on flow-related aneurysms alone. In many instances, the source of rupture is also unclear. Meta-analysis from 2016 suggested that 49.2% of hemorrhages were secondary to aneurysm rupture, 45% from AVM rupture, and 5.7% were undetermined.In a study of 302 patients, of which 52.6% had a hemorrhagic presentation, demonstrated a significant increase in rate of hemorrhage in those with flow-related aneurysms. Thus, it is necessary to figure out risk factors related to ruptured flow-related aneurysms in pAVM.

Publications & conference data

1 peer-reviewed publication reference this trial (live from Europe PMC):

  1. Risk factors for flow-related aneurysm rupture associated with posterior circulation arteriovenous malformation: a multicenter retrospective study.
    Yifei W, Guangxi L, Chenyuan L, Shu C, et al · · 2025 · PMID 41368358 · DOI 10.3389/fneur.2025.1685261

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