Angiogenic Profile and Non-invasive Imaging May Predict Tumor Progression of High Risk Group Low Grade Glioma (LGG)

Study Overview
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Brief Summary
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The low grade glioma (LGG) is a type of brain tumor which is generally more common in younger age group patients. Most patients with LGG undergo surgery which is mostly incomplete due to concern about loss of function. This is an incurable disease. More than half of these patients progress to a higher grade with a worse outcome within five years of their diagnosis and only one-third survive for up to ten years. Post-operative radiation treatment improves local control without survival advantage. Efforts are being made without great success to select the patients with a higher risk of progression based on physical characteristics and histological features. Tumor vascularity is thought to be the key element in tumor progression. Tremendous progress has been made in functional imaging by using magnetic resonance imaging (MRI) 3-Tesla (3T) and in biotechnology which can be used to investigate angiogenic gene profiles in order to identify gene signature for these tumors. In this study the investigators are proposing that patients of LGG with a higher risk of tumor progression may be selected by functional imaging and angiogenic profiles. These higher risk patients may be candidates for post-operative radiation in the future with a potential survival benefit.

Detailed Description
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Summary: Comprehensive analysis of the angiogenesis-related gene expression profiles and tumor perfusion of patients with LGG will provide a novel understanding of subgroup (low and high-risk) of LGG. Thus, this study will allow identifying clinically relevant factors predictive for tumor progression and to select patients in high-risk group for adjuvant radiation therapy.

Official Title
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Angiogenic Profile and Non-invasive Imaging May Predict Tumor Progression of High Risk Group Low Grade Glioma (LGG)

Conditions
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Glioma

Intervention / Treatment
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* Device: imaging and angiogenic profiles


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Greater than 18 years of age Brain tumor with no contrast enhancement on conventional MRI and confirmed histological of LGG No adjustment treatment Consent to participate in study No contra-indication for dynamic contrast-enhanced (DCE)-MRI

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Device: imaging and angiogenic profiles|Image tumor angiogenesis by DCE-MRI using 1.5- or 3-T MRI instruments (13,14,15) pre-and postoperatively (before biopsy or surgery).|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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non-enhancing lesion, low grade glioma, high risk group selection