Necitumumab plus gemcitabine and cisplatin versus gemcitabine and cisplatin alone as first-line treatment for stage IV squamous non-small cell lung cancer: A phase 1b and randomized, open-label, multicenter, phase 2 trial in Japan
2019
Abstract Objectives This open-label, multicenter, phase 1b/2 study assessed necitumumab plus gemcitabine and cisplatin (GC + N) in patients with previously untreated squamous non-small cell lung cancer in Japan. Materials and methods The phase 1b part determined the gemcitabine dose for the phase 2 part, in which patients were randomized 1:1 to GC + N or gemcitabine and cisplatin (GC) (gemcitabine 1250 mg/m 2 on days 1 and 8; cisplatin 75 mg/m 2 on day 1 of maximum four 3-week cycles; nectimumab 800 mg on days 1 and 8 of a 3-week cycle continued until progressive disease or unacceptable toxicity). The primary endpoint of the phase 2 part was overall survival. Results In the phase 2 part, 181 patients received GC + N (N = 90) or GC (N = 91). Overall survival was significantly improved with GC + N versus GC (median, 14.9 months vs 10.8 months; hazard ratio [HR] = 0.66, 95% CI: 0.47 – 0.93, p = 0.0161). Improvements were also observed in progression-free survival (median, 4.2 months vs 4.0 months; HR = 0.56; p = 0.0004) and objective response rate (51% vs 21%; p Conclusion GC + N is well tolerated and has significant and clinically meaningful treatment benefit in the first-line treatment of patients with squamous non-small cell lung cancer in Japan. Clinicaltrials.gov identifier: NCT01763788.
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