Opinion|Videos|May 9, 2025
Analyzing the MARIPOSA Overall Survival Data in the Frontline Treatment of EGFR-Mutant NSCLC
Panelists discuss how the overall survival benefit from the MARIPOSA regimen (amivantamab plus lazertinib) with a hazard ratio of 0.75 and projected survival improvement exceeding 1 year represents a significant advancement that must be weighed against toxicity concerns.
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Video content above is prompted by the following:
Overall Survival Data from MARIPOSA Trial
Key Themes:
- Significant Survival Improvement: Analysis of the MARIPOSA trial showing amivantamab plus lazertinib leads to improved progression-free survival and overall survival
- Statistical Impact: Overall survival hazard ratio of 0.75 with projected median overall survival exceeding 1 year
- Comparison Considerations: Discussion of MARIPOSA vs FLAURA2 trial designs and outcomes
Notable Insights:
- Dr Dietrich: Called the 12-plus-months overall survival improvement “very refreshing” and noted the “relatively flat trajectory as we move out further on the curve,” indicating durable benefit. He stated, “Breaking through 4 years of overall survival is one thing and...5-year landmark improvements...is also very, very significant.”
- Dr Piotrowska: Emphasized caution when comparing trials, noting that MARIPOSA had “no crossover allowed” while FLAURA2 patients could access chemotherapy in later lines of treatment, making direct comparison of survival outcomes challenging.
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