NCT05749393

Brief Summary

The goal of this clinical trial is to compare intracranial aneurysm patients. The main question it aims to answer are: Which heparinization regimen is most beneficial to patients during surgery for intracranial aneurysms. Participants will be randomized to different intraoperative heparinization regimens: (i) 50 U/kg intravenous (IV) at 1-h intervals reduced by half to a minimum of 1000 u/h; (ii) 70 U/kg IV at 1-h intervals reduced by half to a minimum of 1000 u/h. MRI will be performed within 72 h after surgery, and the DWI sequence of MRI will be analyzed. If there is a comparison group: Researchers will compare different intraoperative heparinization protocol groups to see which dose of intraoperative heparin has the best prognosis for use.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
90

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Apr 2023

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 17, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

March 1, 2023

Completed
2 months until next milestone

Study Start

First participant enrolled

April 30, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 31, 2024

Completed
1 day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2024

Completed
Last Updated

December 22, 2023

Status Verified

December 1, 2023

Enrollment Period

11 months

First QC Date

February 17, 2023

Last Update Submit

December 19, 2023

Conditions

Keywords

Intracranial Aneurysm

Outcome Measures

Primary Outcomes (1)

  • Size of the ischemic focus

    Cranial MRI will be performed on postoperative patients within 24 hours. The presence of high signal on diffusion weighted imaging sequences indicated the occurrence of cerebral infarction.

    This will be evaluated within 24 hours after the procedure.

Study Arms (2)

Low-dose group

EXPERIMENTAL

The initial dose was 50U/kg intravenous injection, and the dosage was halved by intravenous injection every 1 hour to the minimum 1000u/h. The medication will be discontinued at the end of the procedure.

Drug: Heparin sodium

High-dose group

EXPERIMENTAL

The initial dose was 70U/kg intravenous injection, and the dosage was halved by intravenous injection every 1 hour to the minimum 1000u/h. The medication will be discontinued at the end of the procedure.

Drug: Heparin sodium

Interventions

Intravenous heparin was administered during intracranial aneurysm embolization with a guide catheter and discontinued at the end of the procedure.

High-dose groupLow-dose group

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Jiangsu Province Hospital

Nanjing, China

RECRUITING

Related Publications (2)

  • Zhang L, Zhou X, Liu Y, Ding C, Wang Y, Yang H. The Utility of Diffusion-Weighted MRI Lesions to Compare the Effects of Different Heparinization Schemes in Intracranial Aneurysms Treated by Endovascular Intervention. Front Neurol. 2020 Dec 10;11:609384. doi: 10.3389/fneur.2020.609384. eCollection 2020.

    PMID: 33424758BACKGROUND
  • Narata AP, Amelot A, Bibi R, Herbreteau D, Angoulvant D, Gruel Y, Janot K. Dual Antiplatelet Therapy Combining Aspirin and Ticagrelor for Intracranial Stenting Procedures: A Retrospective Single Center Study of 154 Consecutive Patients With Unruptured Aneurysms. Neurosurgery. 2019 Jan 1;84(1):77-83. doi: 10.1093/neuros/nyy002.

    PMID: 29490066BACKGROUND

MeSH Terms

Conditions

Intracranial Aneurysm

Interventions

Heparin

Condition Hierarchy (Ancestors)

Intracranial Arterial DiseasesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesAneurysmVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

GlycosaminoglycansPolysaccharidesCarbohydrates

Study Officials

  • Hua Lu, Doctor

    First Affiliated Hospital, Nanjing Medical University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Hua Lu, Doctor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

February 17, 2023

First Posted

March 1, 2023

Study Start

April 30, 2023

Primary Completion

March 31, 2024

Study Completion

April 1, 2024

Last Updated

December 22, 2023

Record last verified: 2023-12

Data Sharing

IPD Sharing
Will share

Individual participant data (IPD) will be available to other researchers under the approval of the ethical committee.

Shared Documents
STUDY PROTOCOL, CSR
Time Frame
the data will be available when summary data are published.

Locations