Newly Diagnosed Glioblastoma in Patients Older Than 70 with Good Functional Status and MGMT Promoter Methylation
This protocol addresses the management of newly diagnosed glioblastoma in patients older than 70 years who present with good functional status and whose tumor carries MGMT promoter methylation — a molecular profile that influences treatment responsiveness and guides decision-making in this age group.
Clinical scenario: Newly diagnosed glioblastoma · Age >70 years · Good functional status · MGMT promoter methylated. Treatment decisions in this group depend on the interplay of age, functional status, molecular profile, and individual patient care goals.
Surgical Treatment Approach
The initial phase of management centres on maximal safe resection of the tumor whenever feasible, with the surgical approach individualised based on the patient's medical condition and the functional anatomy of the affected brain region. Alternative interventional options exist when open resection carries excessive risk. The complete structured regimen — including the subsequent treatment phases and all evidence-based options specific to this MGMT-methylated, older-patient scenario — is available in the full protocol.
References
DOI: 10.1093/neuonc/noaf177
- Treatment decisions for glioblastoma after maximal safe resection depend on age, functional status, MGMT status, and patient care goals (Figure 8).
- Given the modest benefits of standard treatments, participation in clinical trials is highly recommended for patients with good performance status of any age.
- Treatment is similar to the approach for younger patients and includes maximal safe surgical resection, radiotherapy and temozolomide, although randomized studies failed to show a survival difference between biopsied and resected patients.
- Nevertheless, the goal for glioblastoma surgery should be maximal safe resection of the enhancing and non-enhancing solid tumor whenever feasible.
- Whenever microsurgical resection is deemed to be too risky based on the patient's medical condition and/or the functional topography of the affected brain region, a stereotactic or open biopsy should be performed to obtain a histological and molecular diagnosis.
- For patients in whom conventional, open surgical approaches are not deemed optimal because of surgical risk, MRI-guided laser interstitial thermal therapy, a minimally invasive technique designed to ablate tumors, is sometimes an option.
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