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Neal Ready
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MA 07 - ALK, ROS and HER2 (ID 673)
- Event: WCLC 2017
- Type: Mini Oral
- Track: Advanced NSCLC
- Presentations: 1
- Moderators:Robert C. Doebele, J.C. Ho
- Coordinates: 10/17/2017, 15:45 - 17:30, Room 316
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MA 07.05 - Discussant - MA 07.01, MA 07.02, MA 07.03, MA 07.04 (ID 10817)
15:45 - 17:30 | Presenting Author(s): Neal Ready
- Abstract
- Presentation
Abstract not provided
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P3.07 - Immunology and Immunotherapy (ID 723)
- Event: WCLC 2017
- Type: Poster Session with Presenters Present
- Track: Immunology and Immunotherapy
- Presentations: 1
- Moderators:
- Coordinates: 10/18/2017, 09:30 - 16:00, Exhibit Hall (Hall B + C)
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P3.07-012 - Nivolumab Versus Docetaxel in Patients With Previously Treated Advanced Non-Small Cell Lung Cancer and Liver Metastases (ID 8484)
09:30 - 16:00 | Author(s): Neal Ready
- Abstract
Background:
Patients with non-small cell lung cancer (NSCLC) who have metastasis to the liver have poor prognosis. The phase 3 trials CheckMate 017 and 057 demonstrated improved overall survival (OS) and a favorable safety profile with nivolumab, an anti-programmed death-1 antibody, versus docetaxel in patients with previously treated advanced squamous and non-squamous NSCLC, respectively. A prior subgroup analysis from these trials evaluated and demonstrated efficacy and safety with nivolumab in patients with asymptomatic central nervous system metastases (Goldman J. ASCO 2016). Here we report subgroup analyses from these trials of patients with baseline liver metastases.
Method:
In both trials, patients were randomized 1:1 to nivolumab 3 mg/kg every 2 weeks or docetaxel 75 mg/m[2] every 3 weeks until progression or discontinuation. The primary endpoint of each study was OS. Patients from CheckMate 017 and 057 with baseline liver metastases reported as either target or non-target lesions were identified and pooled across studies by treatment.
Result:
Baseline characteristics were generally similar between patients with liver metastases randomized to nivolumab (n=99) and docetaxel (n=94). In the nivolumab group, 26% of patients had squamous and 74% had non-squamous NSCLC; in the docetaxel group, 36% had squamous and 64% had non-squamous NSCLC. The minimum follow-up was 24.2 months (Feb 2016 database locks). Nivolumab resulted in improved OS compared with docetaxel in patients with liver metastases (hazard ratio [HR]=0.68; 95% confidence interval [CI]: 0.50, 0.91), similar to findings from the ITT group (HR=0.72; 95% CI: 0.62, 0.84). Median OS in patients with liver metastases was 6.83 months with nivolumab versus 5.93 months with docetaxel, both of which were lower than those observed in the overall pooled intent-to-treat (ITT) population (11.14 months vs 8.11 months). Two-year OS rates were 18% with nivolumab versus 6% with docetaxel in patients with liver metastases. Rates of grade 3−4 treatment-related adverse events in patients with liver metastases were lower with nivolumab compared with docetaxel (7% vs 53%), and similar to those in the ITT population (10% vs 55%).
Conclusion:
The lower median OS observed in this subgroup of patients with previously treated advanced NSCLC and baseline liver metastases corroborates previous findings that metastasis to the liver is an unfavorable prognostic factor. However, nivolumab demonstrated sustained OS benefit versus docetaxel in these patients, similar to the ITT population. The safety profile of nivolumab was favorable versus docetaxel in this subgroup, with no new safety concerns identified.
