Regarding sphincter preservation, rates were numerically higher for doublet therapy compared to 5-FU/LV; however, the difference did not reach statistical significance (FOLFIRI vs 5-FU/LV: 81.4% vs 65.5% [ P = .052]; FOLFOX vs 5-FU/LV: 72.4% vs 65.5% [ P = .422]).
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Intergroup randomized phase III study of adjuvant FOLFIRI, FOLFOX, or 5-FU/leucovorin for stage II/III rectal cancer: ECOG-ACRIN E3201.
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0.0520
0.0520