Nasopharyngeal Carcinoma Clinical Trial
Official title:
Intensity-modulated Radiotherapy With or Without Concurrent Chemotherapy for Stage II Nasopharyngeal Carcinoma: a Phase 3 Non-inferior Multicenter Randomized Controlled Trial
A prior phase III randomized trial showed considerable survival benefit from the combined
treatment of cisplatin-based concurrent chemotherapy and two-dimensional conventional
radiotherapy (2DCRT) for patients with stage II (the Chinese 1992 staging system)
nasopharyngeal carcinoma. However, since intensity-modulated radiotherapy (IMRT) was known
to be superior to 2DCRT in local control, progression free survival and even overall
survival, it is a pivotal question whether stage II [T1N1M0 and T2N0-1M0, based on the 2010
International Union against Cancer/American Joint Committee on Cancer (UICC/AJCC) staging
system] patients can still obtain significant benefit from the additional concurrent
chemotherapy in the IMRT era.
The investigators' retrospective study (PMID:26528755 ) indicated that low risk
nasopharyngeal carcinoma (T1N1M0, T2N0-1M0 or T3N0M0, the 2010 UICC/AJCC staging system)
patients who underwent IMRT could not benefit from cisplatin-based concurrent chemotherapy.
Therefore, the investigators perform this randomized controlled trial to address this
question, on a prudent assumption that IMRT alone was not inferior to IMRT plus concurrent
chemotherapy in stage II patients.
Eligible patients are randomly assigned to receive intensity-modulated radiotherapy (IMRT) alone or IMRT plus concurrent chemotherapy. IMRT is given as 2.0-2.30 Gy per fraction with five daily fractions per week for 6-7 weeks to a total dose of 66 Gy or greater to the primary tumor. Concurrent chemotherapy consisted of cisplatin 100 mg/m² every 3 weeks for 3 cycles. The primary endpoint is overall survival (OS). Secondary end points include failure-free survival(FFS), locoregional relapse-free survival (LRFS), distant metastasis-free survival (DMFS), toxic effects and quality of life. All efficacy analyses are conducted in the intention-to-treat population, and the safety population include only patients who receive their randomly assigned treatment. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Treatment
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