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Circulating tumor DNA-guided de-escalation or escalation of adjuvant therapy in high-risk stage II and stage III colon cancer: the phase 2 PEGASUS trial.

Silvia Marsoni, Clara Montagut, Filippo Pietrantonio, Andrea Sartore-Bianchi, Luca Lazzari, Francesca Bergamo, Maria Giulia Zampino, Noelia Tarazona, Mario Mandalà, Stefano Tamberi, Elena Elez, Cristina Santos Vivas, Paolo Luraghi, Michele Prisciandaro, Federica Tosi, Davide Ciardiello, Joana Vidal, Victor Seguì, Michele Palazzo, Giulia Maddalena, Katia Bencardino, Ida Taglialatela, Marta Guix, Eliana Rulli, Valentina Vettore, Federica Morano, Claudio Isella, Giovanni Crisafulli, Giorgio Patelli, Enzo Medico, Alberto Bardelli, Andrés Cervantes, Valter Torri, Josep Tabernero, Salvatore Siena, Sara Lonardi

Nature cancerSep 14, 2026PMID 42736431doi:10.1038/s43018-026-01237-9 Journal ArticlepubmedProvenance
Source
PubMed
Retrieved
Sep 19, 2026
Layer
normalized (units and labels harmonized; values unchanged)
Run
ING-PUBMED-20260919-000001
Published

Abstract

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Oxaliplatin-fluoropyrimidine combinations are standard adjuvant therapy after radical resection of high-risk stage II and stage III colon cancer but expose many patients to toxicity while failing to prevent relapse in others. PEGASUS was a multicenter, single-arm, phase 2 trial evaluating the…

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Validated 2

Candidate 1

Registered trialsNCT00646607NCT04259944

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