A multicenter, randomized, open-label, phase II trial of erlotinib versus etoposide plus cisplatin with concurrent radiotherapy in unresectable stage III non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) activating mutation.

作者：Ligang, Xing; Gang, Wu; Lvhua, Wang; Jian-Cheng, Li; Jianhua, Wang; Zhiyong, Yuan; Ming, Chen; Yaping, Xu; Zhengfei, Zhu; You, Lu; Chun, Han; Tingyi, Xia; Conghua, Xie; Guang, Li; Jinming, Yu

来源：Journal of Clinical Oncology, 2017, 35(15_suppl): 8531-8531.

DOI：10.1200/jco.2017.35.15_suppl.8531

<jats:p> 8531 </jats:p><jats:p> Background: Concurrent chemoradiotherapy is the standard treatment for patients(pts) with unresectable stage IIIA/IIIB NSCLC. In EGFR mutant pts, tyrosine kinase inhibitor(TKI) exhibits clinical benefits over chemotherapy regimens in terms of efficacy and safety as well as specific enhancement of radiation effects. This multicenter, randomized, open-label, phase II trial aimed to compare the erlotinib and etoposide/cisplatin with concurrent radiotherapy (RT) in pts with EGFR-mutant. Methods: Histopathology/cytology confirmed stage IIIA/B unresectable NSCLC pts (age 18-75) with ECOG PS 0-1 and EGFR exon 19 or 21 mutation were included and randomized (1:1) into two arms: erlotinib (E) and etoposide/cisplatin (EP). E arm was treated with oral erlotinib (150mg/day for 2 years or till either disease progression or intolerable toxicities) and RT (200cGy/day, 5 days/week for 6 weeks from first day erlotinib). EP arm was treated with sequential etoposide (50 mg/m<jats:sup>2</jats:sup> IV days 1-5, 29-33) and cisplatin (50mg/m<jats:sup>2</jats:sup>IV day 1,8, 29,36) and RT (from first day drug). Primary endpoint is progress free survival (PFS). Secondary endpoints are objective response rate(ORR), local control rate(LCR), overall survival(OS), quality of life(QoL) and safety. Results: 252 pts were screened, and 41 were enrolled into E(n=20) and EP(n=21) arms. Characteristics of age, sex, histologic type, N2, EGFR 19 and 21 mutation were well balanced in each arm. Comparing with EP, median PFS of E arm was significantly improved (27.86 vs 6.41 months; HR 0.053, 95% CI: 0.006-0.463; P&lt;0.001). ORR and DCR were 60.0% vs. 38.1%( P=0.217), and 65% vs. 47.6%( P=0.350), respectively. Two arms had same incidence of adverse effects (CTCAE Grade≥1, 86.7%[13/15]), and most common sAE(Grade≥3) was rash (20%, 3/15) and hematological toxicity(26.7%, 4/15), respectively. Conclusions: In unresectable stage III EGFR mutant NSCLC pts, concurrent erlotinib/RT provides a statistically significant PFS improvement with well tolerability. These results warrant a phase III study to confirm. (RECEL, NCT01714908). Clinical trial information: NCT01714908. </jats:p>

• 出版日期2017-5-20
• 单位郑州大学; 四川大学; 天津医科大学; 复旦大学; 中国医学科学院北京协和医院