Real-world treatment patterns and outcomes of patients with metastatic nonsquamous non-small cell lung cancer after progression on standard-of-care therapy in the United States

Real-world comparative effectiveness of sotorasib versus docetaxel in second line and beyond among patients with advanced non-small cell lung cancer (NSCLC)

OBJECTIVES

To evaluate the comparative effectiveness of sotorasib monotherapy versus docetaxel as monotherapy or combination therapy in patients with pretreated KRAS G12C-mutated advanced NSCLC in the real-world.

METHODS

A US-based electronic health record-derived de-identified database was used in this study. Patients with pretreated KRAS G12C-mutated advanced NSCLC who initiated sotorasib between May 28, 2021, and September 30, 2022, and docetaxel between January 1, 2019, and September 30, 2022 (to enhance sample size), were included, with a minimum of 12-month opportunity for follow-up. Treatment groups were balanced via overlap weighting propensity score methods. Median OS in the 2L and 2L+ settings were calculated using Kaplan-Meier estimates. Hazard ratios (HRs) were estimated via Cox proportional hazard models.

RESULTS

Overall, the clinical characteristics in sotorasib and docetaxel cohorts were balanced after propensity score weighting. At baseline, most patients were > 65 years of age, had ECOG performance status of 0-1, were from the community practice setting, had advanced stage at initial diagnosis, and had prior anti-PD-(L)1 treatment and/or platinum-based chemotherapy. In the 2L setting, the median OS (95 % CI) for sotorasib (N=102) and docetaxel (N=58) patients was 10.2 (7.6-16.3) and 6.0 (4.2-11.0) months, respectively, with a corresponding mortality HR (95 % CI) of 0.62 (0.41-0.93). In the 2L+ setting, the median OS (95 % CI) for sotorasib (N=164) and docetaxel (N=116) was 10.2 (8.0-14.6) and 7.2 (5.1-10.6) months, respectively, with a corresponding mortality HR (95 % CI) of 0.65 (0.49-0.87). In patients with prior anti-PD-(L)1 treatment, the mortality HR (95 % CI) in the sotorasib group versus docetaxel was 0.61 (0.39-0.94) and 0.65 (0.48-0.89) in the 2L and 2L+ settings, respectively. Findings from other subgroups were consistent with the primary analyses.

CONCLUSION

In this real-world comparative analysis of patients with pretreated KRAS G12C-mutated advanced NSCLC, sotorasib monotherapy demonstrated a longer median OS compared to docetaxel monotherapy or combination therapy.

Current and Emerging Treatment Options for Patients with Metastatic EGFR-Mutated Non-small Cell Lung Cancer After Progression on Osimertinib and Platinum-Based Chemotherapy: A Podcast Discussion

Patients with metastatic epidermal growth factor receptor (EGFR)-mutated non-small cell lung cancer (NSCLC) are widely treated with osimertinib, the preferred first-line treatment option. However, disease progression inevitably occurs, driven by EGFR-dependent or EGFR-independent mechanisms of resistance. Platinum-based chemotherapy is the recommended treatment following progression with osimertinib but responses to platinum-based chemotherapy are transient. Salvage therapies, which are used after progression on platinum-based chemotherapy, have poor clinical outcomes in addition to substantial toxicity. In this podcast, we discuss the current treatment landscape and emerging therapeutic options for patients with metastatic EGFR-mutated NSCLC whose disease has progressed following treatment with osimertinib and platinum-based chemotherapy.Podcast audio available for this article.

Clinical outcomes of ramucirumab plus docetaxel in the treatment of patients with non-small cell lung cancer after immunotherapy: a systematic literature review

Introduction

In the REVEL trial, ramucirumab plus docetaxel demonstrated significant improvements in overall survival (OS), progression-free survival (PFS), and overall response rate (ORR) compared with placebo plus docetaxel for treatment of metastatic non-small cell lung cancer (NSCLC) that progressed during or after platinum-based chemotherapy. Since the approval of ramucirumab plus docetaxel, immune checkpoint inhibitors (ICIs), either as single agents or in combination with chemotherapy, have become the standard of care for first-line treatment of patients with advanced NSCLC. However, efficacy and safety data for ramucirumab plus docetaxel after prior ICI treatment from randomized controlled clinical studies are lacking.

Methods

Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, a systematic literature review was performed. Electronic databases and select international oncology conference proceedings were searched. Studies published between 01 January 2014 and 01 July 2022, which evaluated 2 efficacy outcomes (and included at least 1 time-to-event endpoint) or safety outcomes of ramucirumab plus docetaxel in NSCLC that progressed after prior ICI treatment, were identified. Twelve studies were included in the analysis. Two treatment groups were selected: ramucirumab plus docetaxel after prior ICI ± chemotherapy (RAM + DTX ICI pre-treated) and ramucirumab plus docetaxel after prior chemotherapy only (RAM + DTX ICI naïve). OS, PFS, ORR, disease control rate (DCR), and safety data were extracted and descriptively summarized across both treatment groups.

Results

The pooled weighted median PFS and median OS were 5.7 months (95% confidence interval [CI]: 3.9-6.8) and 11.2 months (95% CI: 7.5-17.5), respectively, in the RAM + DTX ICI pre-treated group and 3.8 months (95% CI: 2.3-4.1) and 13.5 months (95% CI: 8-24.0), respectively, in the RAM + DTX ICI naïve group. The ORR and DCR ranged from 20.9% to 60.0% and from 62.4% to 90.0%, respectively, in the RAM + DTX ICI pre-treated group and from 17.7% to 20.0% and from 57.1% to 75.0%, respectively, in the RAM + DTX ICI naïve group. The safety profile across studies was consistent between both treatment groups, and no new safety signals were reported.

Conclusions

Cumulatively, these results support the combination of ramucirumab plus docetaxel as an effective and safe subsequent therapy for the treatment of patients with metastatic NSCLC with disease progression irrespective of previous ICI treatment.