- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03161769
MAXimizing Flow Diversion Effect On the Treatment of Large Intracranial Aneurysms With Embolization Devices (MAX-PIPE)
October 15, 2018 updated by: Vitor Pereira, University Health Network, Toronto
MAX-PIPE Registry - Maximizing Flow Diversion Effect On The Treatment of Large Intracranial Aneurysms With PIPEline Flex Embolization Devices Using Optical Flow Imaging Software "AneurysmFlow"
Investigate the ability of the intra-operative, intra-aneurysmal flow evaluation to assist with the treatment of intracranial large aneurysms using Embolization Device(s)
Study Overview
Status
Unknown
Conditions
Detailed Description
The Division of Neuroradiology at UHN (Toronto Western Hospital) would like to initiate a single center registry study on the treatment of large intracranial aneurysms with PIPEline[tm] flex embolization devices using optical flow imaging software, "AneurysmFlow".
The study team will consent patients diagnosed with unruptured brain / intracratial aneurysms IA(s) .
The selected patients ,who booked for elective brain aneurysm repair/endovascular treatment with Flow diverter devices (FDS) called Pipeline embolization devices (PED), will qualify for registry participation .
During the PED procedure, the study team will be using AneurysmFlow software to calculate a new metric called the MAFA ratio (Mean Aneurysm Flow Amplitude).
By calculating the MAFA ratios intra-operatively, the interventionalist can adapt the therapeutic strategy in order to maximize the flow diverting effect on inducing complete aneurysm occlusions (thrombosis).
Additionally, the purpose of this study is to further expand the body of clinical knowledge concerning the relationship between blood flow metrics as determined by the AneurysmFlow software and clinical outcome in patients undergoing treatment for intracranial aneurysms (IAs) with Pipeline and Pipeline Flex embolization devices.
The study team aims to collect data at a 12 month follow-up period for each patient
Study Type
Observational
Enrollment (Anticipated)
30
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Vitor Pereira, MD
- Phone Number: 5564 416-603-5800
- Email: vitor.pereira@uhn.ca
Study Locations
-
-
Ontario
-
Toronto, Ontario, Canada, M5T 2S8
- Recruiting
- Toronto Western Hospital - University Health Network
-
Contact:
- Vitor Pereira, MD
- Phone Number: 5564 416-603-5800
- Email: vitor.pereira@uhn.ca
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
N/A
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
Patients diagnosed with unruptured saccular Intracranial Aneurysms IA(s) suitable for endovascular treatment with PIPEline™ Embolization Devices or PIPEline™ Flex Embolization Devices.
Description
Inclusion Criteria:
- Subject with unruptured, large (≥8mm) saccular aneurysm(s) located in the anterior intracranial circulation and suitable for an endovascular treatment with a Flow Diverter Stent.
- Subject has signed an institutionally approved research informed consent form.
- Subject ≥ 18 years old.
Exclusion Criteria:
- Subject with non-saccular brain aneurysm (s) such as:- dissecting; fusiform; atherosclerotic; mycotic; bifurcational.
- Subject underwent a prior target brain aneurysm treatment with either endovascular (stenting, coiling) or surgical (clipping) techniques.
- The endovascular treatment of subject's target aneurysm(s) was assisted with coils or intracranial stents (non-FDS) before the AneurysmFlow calculations.
- Subject with partially thrombosed or recanalized target brain aneurysm(s).
- Subject had prior significant or severe allergy to intra-arterial contrast medium uncontrolled by pre-procedure medications.
- Subject with severe kidney disease (e-GFR < 60).
- Subject is not willing (or not able) to attend post FDS insertion follow up clinic visits requiring DSA, head MRI or CTA imaging.
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Percutaneous neurovascular treatment
Procedure: Percutaneous neurovascular treatment of intracranial aneurysms
|
Endovascular treatment of intracranial aneurysms using flow diverting stents
Software to process and display images of intracranial aneurysm treatment using flow diverting stents.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of participants with complete aneurysm occlusion at 12 months based on contrast agent volume measurement in angiography.
Time Frame: 1 year
|
≥86% complete aneurysm occlusion rate after 12 months post-treatment using optical flow analysis with a MAFA threshold ratio of 0.89, measured with an image processing tool.
|
1 year
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of participants with complete aneurysm occlusion at 6 months based on contrast agent volume measurement in angiography.
Time Frame: 6 months
|
≥74% complete aneurysm occlusion rate after 6 months post-treatment using optical flow analysis with a MAFA threshold ratio of 0.89, measured with an image processing tool.
|
6 months
|
High sensitivity and specificity (> 80%) of the MAFA ratio to determine aneurysm occlusion rates based on ROC statistical calculations.
Time Frame: 1 year
|
Data collected from the registry will be used to help determine a new, more optimal MAFA ratio threshold for predicting post-FDS aneurysm occlusion at 12 months post-treatment based on receiver operating characteristic (ROC) statistical curves.
|
1 year
|
Number of participants with treatment complications as assessed by an electronic patient record.
Time Frame: 1 year
|
Predictability of the MAFA ratio for treatment complications (aneurysm rupture, in-stent thrombosis, mass effect, using a correlation analysis.
|
1 year
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Principal Investigator: Vitor Pereira, MD, Associate Professor or Radiology and Surgery
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
April 21, 2017
Primary Completion (ANTICIPATED)
September 1, 2019
Study Completion (ANTICIPATED)
September 1, 2019
Study Registration Dates
First Submitted
May 17, 2017
First Submitted That Met QC Criteria
May 18, 2017
First Posted (ACTUAL)
May 22, 2017
Study Record Updates
Last Update Posted (ACTUAL)
October 16, 2018
Last Update Submitted That Met QC Criteria
October 15, 2018
Last Verified
October 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- TWH -Version 4.0 July 13 2016
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
product manufactured in and exported from the U.S.
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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