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Cetuximab every 2 weeks (Q2W) dosing schedule is approved by the US FDA and by the Japanese Pharmaceuticals and Medical Devices Agency in patients with metastatic colorectal cancer and squamous cell carcinoma of the head and neck. Phase II trials have found comparable efficacy and safety for the weekly (Q1W) and Q2W schedules, and real-world studies have shown noninferiority of the Q2W compared with the Q1W schedule. Several guidelines recommend cetuximab Q2W administration as an alternative to the Q1W dosing schedule. Cetuximab Q2W can be administered with a Q2W dose of chemotherapy, making it a more convenient option to the Q1W schedule, potentially resulting in reduced costs for administration, increased flexibility for clinical staff and improved patient adherence.


Carsten Bokemeyer, Fortunato Ciardiello, Olivier Dubreuil, Joel Guigay, Stefan Kasper, Per Pfeiffer, Carmine Pinto, Kensei Yamaguchi, Takayuki Yoshino, Christoph Zielinski, Regina Esser, Josep Tabernero. Cetuximab every 2 weeks versus standard weekly dosing administration schedule. Future oncology (London, England). 2024 Mar;20(7):393-407

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PMID: 37850363

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