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Therapy Selection and Management Strategies for Transplant-Ineligible Older Patients

Panelists discuss how newer immune-based therapies and bispecific antibodies may enable fixed-duration treatment approaches that could eliminate the need for stem cell transplant in older but fit patients, potentially allowing for treatment-free intervals after achieving deep responses.

Newer immune-based therapies including T-cell engagers and bispecific antibodies are being integrated into frontline multiple myeloma treatment, potentially creating nonchemotherapy treatment paradigms. The concept of alternating triplet regimens targeting different resistance mechanisms represents an innovative approach to maximize therapeutic impact while minimizing cumulative toxicity. Fixed-duration therapy strategies are particularly attractive for older patients, offering the potential for treatment-free intervals after achieving deep responses.

Consolidation strategies using bispecific antibodies for patients with persistent disease after initial quadruplet therapy are being investigated to deepen responses and overcome resistance. The discussion of sequential treatment approaches emphasizes leveraging unique mechanisms of action to address different resistance patterns. These emerging strategies aim to achieve sustained minimal residual disease (MRD) negativity while allowing for treatment breaks and quality of life improvements.

Clinical implementation of emerging therapies requires careful patient selection, with considerations for treatment sequencing and optimal timing of novel agents. The potential for fixed-duration therapy represents a paradigm shift from continuous treatment models, which is particularly relevant for transplant-ineligible patients. Future directions include personalized treatment approaches based on genetic risk stratification, MRD monitoring for treatment guidance, and integration of cellular therapies into earlier treatment lines for optimal outcomes.

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