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Streamlining the Route of Administration of Monoclonal Antibody Therapies for Better Patient Outcomes in the NSCLC Population

A panelist discusses how the PALOMA-3 study demonstrated that subcutaneous amivantamab is noninferior to intravenous (IV) administration with significantly lower infusion-related reaction (IRR) rates (13% vs 66%), shorter administration time (5 minutes vs 5 hours), higher patient-reported convenience (85% vs 35%), and improved clinical outcomes, making it potentially preferable for most eligible patients once FDA approved.

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    Subcutaneous vs IV Amivantamab

    • PALOMA-3 study findings:
    • Similar efficacy: 30% response rate (subcutaneous) vs 33% (IV)

    • Improved PFS: 6.1 months (subcutaneous) vs 4.3 months (IV) in heavily pretreated population

    • Significantly reduced IRRs: 13% (subcutaneous) vs 66% (IV)

    • Fewer venous thromboembolism events with subcutaneous administration
    • Operational advantages:
    • Dramatically reduced administration time: 5 minutes (subcutaneous) vs 5 hours (IV)

    • Improved infusion chair turnover

    • No split dosing required (unlike IV which requires day 1/day 2 split)

    • Patient preference: 85% rated subcutaneous as convenient vs 35% for IV

    • Not yet FDA approved outside clinical trials

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