- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04356599
Prediction of Delayed Cerebral Ischemia After Subarachnoid Hemorrhage Using Dynamic 18F-FDG PET/CT (PREDISP)
January 24, 2023 updated by: University Hospital, Montpellier
Prediction and Unraveling of Delayed Cerebral Ischemia in Patients With Subarachnoid Hemorrhage Using Early Dynamic 18F-FDG PET/CT Assessment of Cerebral Glucose Uptake (PREDISP)
A pilot trial for assessing early microvascular alterations after aneurysmal subarachnoid hemorrhage using dynamic 18F-FDG PET/CT.
The primary endpoint will be the measure of early changes in cerebral glucose uptake reflecting microperfusion.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Detailed Description
We hypothesize that an early irreversible microvascular deterioration following initial bleeding could contribute to DCI occurrence.
More precisely, we suspect that DCI areas are somehow overlaps of regions in which microperfusion is precociously altered, shortening circulatory reserves, and territories of secondarily spasmed arteries further lowering blood flow, resulting in ischemia.
We aim to explore the potential microvasculature alteration through cerebral glucose perfusion and metabolism assessment using early dynamic 18F-fluorodesoxyglucose Positron Emission Tomography/Computer Tomography (dynamic 18F-FDG PET/CT).
If our hypothesis turned out to be valid, we would at the same time be able to determine risk factors for this unpredictable complication and gain remarkable insight into DCI pathophysiology.
Thus, the purpose of this trial is to demonstrate, in patients affected by SAH, the correlation between early cerebral glucose uptake defects in 18F-FDG PET/CT and delayed cerebral infarction in magnetic resonance imaging (MRI).
Study Type
Interventional
Enrollment (Anticipated)
35
Phase
- Not Applicable
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: Kevin CHALARD, M.D.
- Phone Number: +33 788 014 588
- Email: k-chalard@chu-montpellier.fr
Study Contact Backup
- Name: Pierre-Francois PERRIGAULT, M.D.
- Email: pf-perrigault@chu-montpellier.fr
Study Locations
-
-
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Montpellier, France, 34295
- Recruiting
- Département d'Anesthésie-Réanimation Gui de Chauliac 80 Av Augustin.Fliche
-
Contact:
- Oceane GARNIER, CRA
- Phone Number: 04 67 33 91 68
- Email: o-garnier@chu-montpellier.fr
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-
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
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- written informed consent to participate in the study must be obtained from the subject or proxy/legal representative prior to enrollment.
- males and females aged 18 years and older.
- SAH proven by computed tomography (CT) and that has occurred within the last 72 hours.
- ruptured saccular aneurysm angiographically confirmed by digital subtraction angiogram or CT angiogram, which has been successfully secured by surgical clipping or endovascular coiling.
- high-risk subjects for DCI: "thick clot" on the hospital admission CT (grade 3 or grade 4 on the modified Fisher Scale).
- a woman of childbearing potential is eligible only if the serum pregnancy test performed during the screening period is negative.
Exclusion Criteria:
- PET/CT contradications
- MRI contradications
- gadolinium or meglumine hypersensitivity
- glomerular filtration rate <30mL/min
- SAH due to other causes than ruptured saccular aneurysm.
- post-HSA cardiac arrest.
- high sustained ICP ( >20mmHg lasting >20min) despite optimal treatment.
- significant and concomitant organ failure amongst the following: hypotension with systolic blood pressure <90mmHg refractory to treatment; unresolved pulmonary edema or pneumonia with severe hypoxia defined as PaO2/FiO2 <150; severe cardiac failure requiring inotropic support.
- patients with "do-not-resuscitate" orders, withdrawal of care situation, dying patient.
- vulnerable patient populations (minor, legal vulnerability, prisoner)
- pregnant and nursing mothers.
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
- Primary Purpose: Other
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Intervention Group
All participants will receive study intervention
|
The intervention will consist in a dynamic cerebral 18F-FDG PET study performed at D2+/-1.
Kinetic modeling will be performed using in-house software at the global, regional, and voxel level.
In addition, cerebral perfusion and blood-brain-barrier permeability will be assessed at D4+/- 1 using perfusion MRI and permeability MRI.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Quantification of K1 parameter.
Time Frame: Day 2 +/- 1 day after the initial bleeding
|
A kinetic modeling for cerebral glucose uptake will be performed using in-house software in order to provide the K1 parameter (in min-1) in every voxel reflecting the cerebral blood flow (in mL/min).
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Day 2 +/- 1 day after the initial bleeding
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Quantification of Ki parameter.
Time Frame: Day 2 +/- 1 day after the initial bleeding
|
A kinetic modeling for cerebral glucose uptake will be performed using in-house software in order to provide the Ki parameter (in min-1) in every voxel reflecting the cerebral metabolic rate of glucose in µmol/100g/min.
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Day 2 +/- 1 day after the initial bleeding
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Delayed cerebral ischemic regions.
Time Frame: From day 2 to day 21 +/- 3 days after the initial bleeding
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Delayed cerebral ischemic lesions will be ascertained by routine MRI scans until the end of the period of time in which the subject may present DCI (D21+/-3).
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From day 2 to day 21 +/- 3 days after the initial bleeding
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Delayed spasmed arteries territories.
Time Frame: From day 2 to day 21 +/- 3 days after the initial bleeding
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Occurence of vasospasm will be determined on routine angiograms until the end of the period of time in which the subject may present vasospasm (D21+/-3).
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From day 2 to day 21 +/- 3 days after the initial bleeding
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Quantification of cerebral blood flow using DSC-MRI
Time Frame: At day 4 +/- 1 day after the initial bleeding
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Cerebral blood flow in mL/100g/min will be measured using DSC-MRI (Dynamic Susceptibility Contrast Magnetic Resonance Imaging)
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At day 4 +/- 1 day after the initial bleeding
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Quantification of cerebral blood flow using ASL-MRI
Time Frame: At day 4 +/- 1 day after the initial bleeding
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Cerebral blood flow in mL/100g/min will be measured using ASL-MRI (Arterial Spin Labelling Magnetic Resonance Imaging)
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At day 4 +/- 1 day after the initial bleeding
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Quantification of blood-brain-barrier permeability using DSC-MRI
Time Frame: At day 4 +/- 1 day after the initial bleeding
|
The blood-brain barrier permeability will be measured using DSC-MRI.
A kinetic modeling will be performed in order to provide the leakage parameter K2 (in min-1) in every voxel.
|
At day 4 +/- 1 day after the initial bleeding
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Quantification of blood-brain-barrier permeability using DCE-MRI
Time Frame: At day 4 +/- 1 day after the initial bleeding
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The blood-brain barrier permeability will be measured using DCE-MRI (Dynamic Contrast-Enhanced Magnetic Resonance Imaging).
A kinetic modeling will be performed in order to provide the leakage parameter Ktrans (in min-1) in every voxel.
|
At day 4 +/- 1 day after the initial bleeding
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Kévin CHALARD, M.D., UH Montpellier
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)
July 22, 2020
Primary Completion (Anticipated)
July 1, 2024
Study Completion (Anticipated)
August 1, 2024
Study Registration Dates
First Submitted
April 15, 2020
First Submitted That Met QC Criteria
April 17, 2020
First Posted (Actual)
April 22, 2020
Study Record Updates
Last Update Posted (Estimate)
January 26, 2023
Last Update Submitted That Met QC Criteria
January 24, 2023
Last Verified
January 1, 2023
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Pathologic Processes
- Necrosis
- Cardiovascular Diseases
- Vascular Diseases
- Cerebrovascular Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Infarction
- Stroke
- Brain Infarction
- Intracranial Hemorrhages
- Brain Ischemia
- Ischemia
- Hemorrhage
- Cerebral Infarction
- Subarachnoid Hemorrhage
- Molecular Mechanisms of Pharmacological Action
- Radiopharmaceuticals
- Fluorodeoxyglucose F18
Other Study ID Numbers
- RECHMPL19_0408
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Yes
IPD Sharing Time Frame
12 months after the main publication
IPD Sharing Access Criteria
Data are provided to qualified investigators free of charge.
Required documents to request data include a summary of the research plan, request form, and IRB review.
Dataset will be shared after careful examination by the study board of investigators.
IPD Sharing Supporting Information Type
- Clinical Study Report (CSR)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
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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