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Time to treatment failure, landmarked at 12 weeks, in patients who stopped combination or programmed cell death protein 1 maintenance for toxic effects (n = 34) and those who did not (n = 16). This did not vary significantly (P = .95, log-rank). Week 0 in this landmark analysis corresponds to day 84 of therapy, and all patients who experienced disease progression prior to day 84 are excluded.
