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Chin Clin Oncol ; 12(3): 23, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37417289

ABSTRACT

BACKGROUND: Glioblastoma (GBM) is the most common primary malignant brain tumor in adults. Despite enormous research efforts, GBM remains a deadly disease. The standard-of-care treatment for patients with newly diagnosed with GBM as per the National Cancer Comprehensive Cancer Network (NCCN) is maximal safe surgical resection followed by concurrent chemoradiation and maintenance temozolomide (TMZ) with adjuvant tumor treating fields (TTF). TTF is a non-pharmacological intervention that delivers low-intensity, intermediate frequency alternating electric fields that arrests cell proliferation by disrupting the mitotic spindle. TTF have been shown in a large clinical trial to improve patient outcomes when added to radiation and chemotherapy. The SPARE trail (Scalp-sparing radiation with concurrent temozolomide and tumor treating fields) evaluated adding TTF concomitantly to radiation and chemotherapy. METHODS: This study is an exploratory analysis of the SPARE trial looking at the prognostic significance of common GBM molecular alterations, namely MGMT, EGFR, TP53, PTEN and telomerase reverse transcriptase (TERT), in this cohort of patients treated with concomitant TTF with radiation and chemotherapy. RESULTS: As expected, MGMT promoter methylation was associated with improved overall survival (OS) and progression-free survival (PFS) in this cohort. In addition, TERT promoter mutation was associated with improved OS and PFS in this cohort as well. CONCLUSIONS: Leveraging the molecular characterization of GBM alongside advancing treatments such as chemoradiation with TTF presents a new opportunity to improve precision oncology and outcomes for GBM patients.


Subject(s)
Brain Neoplasms , Glioblastoma , Adult , Humans , Glioblastoma/drug therapy , Glioblastoma/genetics , Temozolomide/pharmacology , Temozolomide/therapeutic use , Antineoplastic Agents, Alkylating/therapeutic use , Dacarbazine/therapeutic use , Brain Neoplasms/drug therapy , Brain Neoplasms/genetics , Precision Medicine , Biomarkers , DNA Methylation
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