Optimal cumulative cisplatin dose during concurrent chemoradiotherapy among children and adolescents with locoregionally advanced nasopharyngeal carcinoma: A real-world data study.
2021
Abstract Purpose To identify an optimal cumulative cisplatin dose along with concurrent chemoradiotherapy (CC-CCD) for children and adolescents with locoregionally advanced nasopharyngeal carcinoma (CALANPC) using real-world data. Materials and Methods Using an NPC-specific database at our center, 157 patients younger than 19 years old with non-disseminated CALANPC and receiving neoadjuvant chemotherapy (NAC) plus cisplatin-based concurrent chemoradiotherapy (CCRT) were enrolled. Confounding factors were controlled by conducting propensity score matching analysis. Primary endpoints include disease-free survival (DFS) and distant metastasis-free survival (DMFS). Results The optimal threshold for CC-CCD with respect to DFS was 160 mg/m2 based on recursive partitioning analyses (RPA). Therefore, a uniform threshold of 160 mg/m2 (≥160 vs. Conclusion CC-CCD exerts significant treatment effects and 160 mg/m2 CC-CCD may be adequate to provide antitumor effects for CALANPC receiving NAC plus CCRT.
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