For elderly or comorbid patients, the high toxicity of powerful, time-limited combination therapies can outweigh their efficacy. A less harsh, continuous monotherapy is often preferable as it better preserves quality of life, even if it doesn't offer a treatment-free interval or a theoretical "100% life back."

For frail elderly patients, it's crucial to discern if poor performance status stems from disease or comorbidities. A practical approach is to initiate treatment with biologic agents alone. If the patient's status improves, it confirms the cancer is the cause, justifying the subsequent, careful addition of cytotoxic chemotherapy.

As novel therapies like blinatumomab and ponatinib achieve excellent systemic control of B-ALL, central nervous system (CNS) relapse emerges as a primary hurdle. This was noted in this trial and others, highlighting a critical unmet need to develop effective, non-chemotherapeutic strategies for CNS prophylaxis and treatment.

Experts view R-mini-CHOP, the standard for older/unfit DLBCL patients, as a poor benchmark that urgently needs to be replaced. Promising chemo-free or chemo-light regimens, like the R-Polo-Glofitamab combination, are seen as the future, aiming to improve outcomes in this vulnerable population without harsh toxicities.

For patients with otherwise well-controlled disease who develop isolated oligoprogression in the brain, evidence suggests a better survival outcome from adding local therapy (like SRS) and continuing the current effective systemic therapy, rather than switching the systemic regimen entirely.

An expert questions the utility of PCI, arguing that historical studies supporting its use were flawed because they lacked baseline brain MRIs. This means many patients may have been treated for existing, not prophylactic, metastases. Modern MRI surveillance may be a better approach to avoid long-term radiation toxicity in survivors.

When treating testicular DLBCL, administering systemic methotrexate for CNS prophylaxis before testicular radiation is crucial. Reversing the order can cause a severe skin reaction known as radiation recall, a critical and potentially dangerous complication.

While blinatumomab-TKI combinations avoid systemic chemotherapy toxicity, they are associated with higher rates of central nervous system (CNS) relapses. This necessitates an increased number of intrathecal chemotherapy doses to prevent CNS disease, a critical nuance for managing this 'simpler' approach.

Experts report successfully treating lymphoma patients as old as 92 with CAR-T, even those with mild cognitive impairment. This demonstrates that chronological age alone is not an absolute contraindication; functional status is a more critical determinant of eligibility for intensive therapies.