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Updated: Aug 28, 2025

Author Spotlight: Advancements in Molecular Biomarker Testing for Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
Immunotherapy in Advanced NSCLC Without Driver Mutations: Available Therapeutic Alternatives After Progression and
1Department of Medical Oncology, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia.
Abstract:
The treatment paradigm of non-small-cell lung cancer without oncogenic drivers has varied dramatically in recent years and is constantly evolving. Immune- checkpoint inhibitors have demonstrated unprecedented durable efficacy in a subset of these patients, so these drugs have become the standard of care in most cases. There are different ways to deliver these agents, such as monotherapy and combinations of immunotherapy or chemotherapy plus immunotherapy. Treatment selection is complicated by an absence of head-to-head comparisons in randomized trials because these agents have gained approval by demonstrating superiority to platinum-doublet chemotherapy alone. Unfortunately, most patients will progress and die from their disease despite advances. Furthermore, after progression on these agents, there is a lack of randomized controlled data to support further management, constituting an unmet need. This review discusses the therapeutic alternatives after progression, summarizes mechanisms of resistance and progression patterns, and describes the main approaches under clinical investigation in the field.
Insights
Immune checkpoint inhibitors are now standard for non-small-cell lung cancer without drivers, but resistance and progression remain challenges. This review explores treatment options after progression and emerging therapies.
Area of Science:
- Oncology
- Immunotherapy
- Cancer Research
Background:
- Non-small-cell lung cancer (NSCLC) treatment has evolved, with immune checkpoint inhibitors (ICIs) becoming standard for tumors lacking oncogenic drivers.
- ICIs show durable efficacy in a subset of NSCLC patients, often used as monotherapy or in combination with chemotherapy.
- Treatment selection is complex due to a lack of head-to-head trials comparing different ICI strategies.
Purpose of the Study:
- To review therapeutic alternatives for NSCLC patients progressing on ICIs.
- To summarize mechanisms of resistance and patterns of progression to ICIs.
- To describe novel approaches under clinical investigation for advanced NSCLC.
Main Methods:
- Literature review of clinical trials and research studies.
- Analysis of mechanisms of resistance to immune checkpoint inhibitors.
- Summary of ongoing clinical investigations for post-progression NSCLC treatment.
Main Results:
- Most NSCLC patients eventually progress despite advances in immunotherapy.
- Limited randomized controlled data exists to guide management after ICI progression, representing a significant unmet need.
- Understanding resistance mechanisms is crucial for developing effective subsequent therapies.
Conclusions:
- Effective strategies are needed for NSCLC patients who progress after initial immunotherapy.
- Further research and clinical trials are essential to address the unmet need in post-progression NSCLC management.
- Investigational approaches hold promise for improving outcomes in this patient population.
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