BIOhabitats: Biological Validation of Vascular Habitats Within Astrocytoma Grade 4 at Molecular, Cellular, and Histopathological Levels

Sponsor

Juan M Garcia-Gomez (Other)

Overall Status

Recruiting

CT.gov ID

NCT05375318

Collaborator

Hospital Clínico Universitario de Valencia (Other), Hospital Universitario 12 de Octubre (Other)

Enrollment

Location

Anticipated Duration (Months)

3.1

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

The main purposes of this study are:

To assess that the four habitats within the tumor (HAT and LAT) and edema (IPE and VPE) in high-grade glioma are different at vascular, tissular, cellular and molecular levels.
To analyze the associations between the perfusion imaging markers and relevant molecular markers at the HTS habitats for high-grade glioma diagnosis, prognosis/aggressiveness, progression and/or prediction.
To analyze the associations between the perfusion imaging markers and immune markers at the HTS habitats useful in immunotherapy evaluation and/or patient selection.
To prospectively validate the prognostic capacity (association with OS and PFS) and stratification capacity of the perfusion imaging markers calculated at the HTS habitats.

Condition or Disease	Intervention/Treatment	Phase
Astrocytoma, Grade IV Glioblastoma Glioblastoma Multiforme Glioblastoma, IDH-wildtype Glioblastoma, IDH-mutant Glioblastoma IDH (Isocitrate Dehydrogenase) Wildtype Glioblastoma IDH (Isocitrate Dehydrogenase) Mutant High Grade Glioma

Detailed Description

High-grade glioma (HGG) are the most aggressive malignant primary brain tumor in adults with a median survival rate of 12-15 months. It still carries a poor prognosis despite aggressive treatment, which includes tumor resection followed by chemo-radiotherapy cycles. The inter-patient and intra-patient tumor heterogeneity is one of the responsible factors for the high aggressiveness of solid malignant tumors and their resistance against effective therapies.

Due to the extremely complex and heterogeneous biology of this tumor, the same treatment for all approach does not work well in this disease, and standard of care is not always the best option, calling for precision medicine to select the best therapeutic option in the right moment to each patient. This requires quantitative medical imaging, patient profiling, prognosis estimation, and expected response to treatment for objective decision making along with the patient management.

The Hemodynamic Tissue Signature (HTS) methodology, included in the ONCOhabitats site (www.oncohabitats.upv.es), provides an automated unsupervised method to describe the heterogeneity of the enhancing tumor and edema areas in terms of the angiogenic process located at these regions. HTS considers 4 habitats within the tumour: 1) the HAT habitat, which refers to the high angiogenic enhancing tumor part of the tumour, 2) the LAT habitat, which refers to the less angiogenic enhancing tumor area of the tumour, 2) the IPE habitat, which refers to the potentially infiltrated peripheral edema, and 4) the VPE habitat, which refers to the vasogenic peripheral edema of the tumour (Juan-Albarracin et al, 2016). Perfusion imaging markers, such as relative cerebral blood volume, can be calculated from these different vascular habitats, and they have been proven as clinically relevant for prognosis. The HTS methodology, as well as the prognostic capacity of these perfusion imaging markers, have been validated with a retrospective multicenter study that included 184 high-grade glioma patients from 7 European centers.

Furthermore, relevant associations have been found between the perfusion markers and clinical-routine biomarkers, such as IDH mutation, MGMT methylation (Fuster-Garcia et al, 2020), molecular subtype or microvessel area.

Considering these promising results and, in order to develop a decision support system based on pixel level Artificial Intelligent models for deciding treatment in high-grade glioma, it is necessary to develop a prospective study and to validate at biological level the vascular habitats defined by the HTS methodology.

The proposed objectives are based on the following hypothesis:

Since the tumor and edema HTS habitats (HAT, LAT, IPE and VPE) have been proven as different in relation to their hemodynamic and vascular behavior, the main hypothesis are that these are habitats are also significantly different at the vascular, tissular, cellular and molecular level.
Significant associations between the perfusion imaging markers calculated with the HTS methodology and both molecular and histopathological markers (useful in prognosis, monitoring and evaluation of therapies) have been found in previous studies. Therefore, the hypothesis are that relevant associations between the imaging markers and clinical-routine biomarkers, such as molecular and histopathological markers, exist.
Preliminary studies have shown associations between the perfusion imaging markers and molecular markers related with the immune action/suppression. In addition, previous works have demonstrated that immune and genomic correlates of response to immunotherapy treatments, such as anti-PD-1, in glioblastoma. Therefore, to find correlations between these immune and genomic signatures with perfusion imaging markers can be useful for decision making and evaluation of immunotherapies.
Preliminary retrospective studies have demonstrated robust association between the perfusion imaging markers calculated at high and low angiogenic habitats and patient overall survival. These robust associations between the perfusion imaging markers and survival times will be demonstrated with a prospective study.

Study Design

Study Type:

Observational

Anticipated Enrollment :

50 participants

Observational Model:

Cohort

Time Perspective:

Prospective

Official Title:

BIOhabitats: Biological Validation of Vascular Habitats Within Astrocytoma Grade 4 at Molecular, Cellular, and Histopathological Levels

Actual Study Start Date :

Mar 1, 2021

Actual Primary Completion Date :

Feb 1, 2022

Anticipated Study Completion Date :

Jul 1, 2022

Arms and Interventions

Arm	Intervention/Treatment
Adults patients with astrocytoma grade 4

Outcome Measures

Primary Outcome Measures

Molecular profile of each vascular habitat biopsied for each included patient [through study completion, an average of 1 year]
Molecular profile of each vascular habitat biopsied for each included patient, including main molecular alterations typically found in astrocytoma grade 4
Description at cellular level of each vascular habitat biopsied for each included patient, including cell types and cell density [through study completion, an average of 1 year]
Description at cellular level of each vascular habitat biopsied for each included patient, including cell types and cell density
Description at histopathological level of each vascular habitat biopsied for each included patient, including tissues, necrosis, vascularuture [through study completion, an average of 1 year]
Description at histopathological level of each vascular habitat biopsied for each included patient, including tissues, necrosis, vascularuture

Eligibility Criteria

Criteria

Ages Eligible for Study:

18 Years and Older

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

Patients diagnosed with Astrocitoma, Grade 4, cIMPACT-NOW: update 6 classification with histopathological/genetic confirmation who undergo the Stupp treatment

Age > 18 years at diagnosis
Patients with access to complete pre-operative MRI studies, including:
Pre gadolinium T1-weighted MRI
Post gadolinium T1-wighted MRI
T2-weighted MRI
T2-Fluid-Attenuated Inversion Recovery (FLAIR)
Dynamic Susceptibility Contrast (DSC) T2*-weighted perfusion sequences
Diffusion Weighted Imaging (DWI)
Patients who undergo surgery with the possibility to collect samples from different regions of the tumor

Exclusion Criteria:

Patient with congestive heart failure within 6 months prior to study entry (New York Heart Association >= Grade 3)
Uncontrolled or significant cardiovascular disease, including:
Myocardial infarction and transient ischemic attack or stroke within 6 months prior to enrollment
Uncontrolled angina within 6 months
Diagnosed or suspected congenital long QT syndrome
Any history of clinically significant ventricular arrhythmias (such as ventricular tachycardia, ventricular fibrillation, or Torsades de pointes)
Clinically significant abnormality on electrocardiogram (ECG)
Pulmonary disease including or greater than grade 2 dyspnea or laryngeal edema, grade 3 pulmonary edema or pulmonary hypertension according to CTCAE 4.03