Radiotherapy Clinical Trial
Official title:
Preoperative Short-course Radiotherapy Followed by Chemotherapy With or Without PD-1 Inhibitor for Locally Advanced Rectal Cancer: a Prospective, Multicenter, Randomized Controlled, Phase II/III Study (STELLAR II Study)
This phase II/III trial studies how well neoadjuvant short-course radiotherapy and chemotherapy with or without PD-1 inhibitors works in treating patients with locally advanced rectal adenocarcinoma. Neoadjuvant short-course radiation therapy followed by two-drug regimen chemotherapy, such as CAPOX, were shown to be non-inferior to standard long-course chemoradiotherapy in our previous STELLAR study. Immune checkpoint inhibitors (ICIs) using monoclonal antibodies, such as PD-1 or PD-L1 inhibitor, show promising efficiency and reliable security in some limited sample prospective or retrospective studies. When treating patients with locally advanced rectal cancer, giving sequential neoadjuvant short-course radiotherapy and chemotherapy with PD-1 inhibitor may work better.
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