Comparing heparin doses for surgery on brain aneurysms

Effect of Heparinization on Intracranial Aneurysm

NA · The First Affiliated Hospital with Nanjing Medical University · NCT05749393

This study is testing which dose of heparin is better for patients having surgery for brain aneurysms to see if it helps them recover more effectively.

Quick facts

PhaseNA
Study typeInterventional
Enrollment90 (estimated)
Ages18 Years to 75 Years
SexAll
SponsorThe First Affiliated Hospital with Nanjing Medical University (other)
Locations1 site (Nanjing)
Trial IDNCT05749393 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to determine which heparinization regimen is most beneficial for patients undergoing surgery for intracranial aneurysms. Participants will be randomly assigned to receive either 50 U/kg or 70 U/kg of intravenous heparin at one-hour intervals, with adjustments made based on specific criteria. The effectiveness of these regimens will be assessed through MRI scans performed within 72 hours post-surgery, focusing on the diffusion-weighted imaging (DWI) sequences. The study seeks to identify the optimal heparin dose that improves patient outcomes during surgical intervention.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 75 with confirmed unruptured intracranial aneurysms and normal coagulation function.

Not a fit: Patients with specific conditions such as dissecting aneurysms, moyamoya disease, or those who have previously used antithrombotic drugs may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved surgical outcomes and prognosis for patients with intracranial aneurysms.

How similar studies have performed: While the specific heparinization regimens may be novel, similar studies have explored anticoagulation strategies in surgical settings, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Greater than 18 years old, less than 75 years old
2. Patients with unruptured intracranial aneurysm were confirmed by DSA.
3. Coagulation function should be normal in the enrolled patients.

Exclusion Criteria:

1. Dissection aneurysm, blister aneurysm, moyamoya disease or arteriovenous malformation.
2. Previous use of antithrombotic drugs (including anticoagulant or antiplatelet aggregation drugs).

Where this trial is running

Nanjing

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.

View on ClinicalTrials.gov →

Conditions: Intracranial Aneurysm

Last reviewed 2026-05-15 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.