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Progression-free survival in patients who, received immunotherapy (red line, PFS2) following progression on chemotherapy (blue line, PFS1).
Median progression-free survival (PFS) for last line of chemotherapy was 4.9 months (PFS1) and for subsequent immunotherapy was 23 months (PFS2). The median PFS2 to PFS1 ratio was 4.7. Since immunotherapy follows progression after chemotherapy, these survival curves should not be directly compared with each other.
IO, immunotherapy.
