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M.D. Hellmann
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OA 17 - Immunotherapy II (ID 683)
- Event: WCLC 2017
- Type: Oral
- Track: Immunology and Immunotherapy
- Presentations: 1
- Moderators:Yuichiro Ohe, Anne Tsao
- Coordinates: 10/18/2017, 14:30 - 16:15, Room 301 + 302
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OA 17.03 - First-Line Nivolumab plus Platinum-Based Doublet Chemotherapy for Advanced NSCLC: CheckMate 012 3-Year Update (ID 9043)
14:50 - 15:00 | Author(s): M.D. Hellmann
- Abstract
- Presentation
Background:
Platinum-based doublet chemotherapy is the standard-of-care first-line treatment for most patients with advanced NSCLC, but responses are not durable (~4.5–6 mo). Chemotherapy may sensitize NSCLC tumors to immune checkpoint inhibitors. Nivolumab, a fully human programmed death (PD)-1 antibody, demonstrated long-term survival benefit in patients with previously treated advanced NSCLC. Here we report the 3-year update of safety and efficacy of first-line nivolumab combined with chemotherapy in the phase 1 CheckMate 012 study (NCT01454102).
Method:
Chemotherapy-naïve patients with stage IIIB/IV NSCLC were randomly assigned based on histology in 3 cohorts combining nivolumab Q3W with 3 platinum-based doublet chemotherapy regimens: nivolumab 10 mg/kg + gemcitabine-cisplatin (all squamous histology), nivolumab 10 mg/kg + pemetrexed-cisplatin (all non-squamous), and nivolumab 10 mg/kg or 5 mg/kg + paclitaxel-carboplatin (any histology). After 4 cycles of nivolumab plus chemotherapy, patients received nivolumab monotherapy until progression or unacceptable toxicity. The primary objective was safety. ORR, PFS, and OS were secondary/exploratory endpoints.
Result:
56 patients were treated. Median age was 63.5 years, 46% were male, and 14% were never-smokers; 29% of tumors had squamous histology. At database lock (September 19, 2016) the minimum follow-up was 45.5 mo. Median duration of chemotherapy treatment was ~12 weeks (4 cycles; range: 3–18 weeks) and median duration of nivolumab treatment was 17–22 weeks across cohorts (range: 3–204). No new safety signals were observed in patients receiving nivolumab maintenance compared with the September 2014 database lock. ORR was 46%. Median duration of response was 10.4 mo (95% CI: 5.1, 26.3). Median PFS was 6.0 mo (95% CI: 4.8, 8.3). Median OS was 19.2 mo (95% CI: 14.1, 23.8), and the 3-year OS rate was 25%. ORR and OS were similar in patients with tumor PD-L1 expression <1% (n=23) vs ≥1% (n=23): ORR 48% vs 52%; median OS 19.2 mo (95% CI: 12.2, 23.8) vs 20.2 mo (95% CI: 10.9, 27.2). The 3-year OS rate was 22% in both PD-L1 expression subgroups.
Conclusion:
Nivolumab plus chemotherapy resulted in prolonged survival in a subset of patients, with a 3-year OS rate of 25%. In all patients, ORR and OS were similar irrespective of tumor PD-L1 expression. These results support further evaluation of nivolumab-chemotherapy combinations as first-line treatment for advanced NSCLC, which are being explored in CheckMate 227 (NCT02477826).
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