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Published on: February 12, 2017
Immunotherapy for lung cancer: ongoing clinical trials
Sarah Declerck1, Johan Vansteenkiste
1Respiratory Oncology Unit (Department of Pulmonology) & Leuven Lung Cancer Group, University Hospital KU Leuven, Leuven, Belgium.
Abstract:
Modulation of a patient's immune system so that it acts against lung cancer cells has not been successful in the past decades. Advances in our understanding of the immune response to tumors resulted in the development of different kinds of novel immunotherapeutic agents. This has resulted in the development of two major approaches. First, antigen-specific immunotherapy or cancer vaccination, with the MAGE-A3 vaccine in resected early-stage non-small-cell lung cancer (NSCLC), the L-BLP25 vaccine in locally advanced NSCLC after chemoradiotherapy and belagenpumatucel-L and the TG4010 vaccine in advanced-stage NSCLC. Second, non-antigen-specific immunotherapy or cancer immunomodulation is reviewed, including how monoclonal antibodies modulate the interaction between antigen-presenting cells, T-lymphocytes and tumor cells (e.g., antibodies against CTLA-4, or against PD-1 receptor or its ligands). Recent Phase II trials with these treatments have shown promising results of efficacy and tolerability, which has led to testing in several large Phase III trials. Some of these are fully recruited, while others are still ongoing, and important results are be expected in the near future.
Insights
Novel immunotherapies show promise for lung cancer. Cancer vaccines and immune-modulating antibodies are being tested in clinical trials for non-small cell lung cancer (NSCLC).
Area of Science:
- Oncology
- Immunology
- Cancer Research
Background:
- Past decades of lung cancer immunotherapy have seen limited success.
- Recent advances in understanding tumor immunology have led to novel immunotherapeutic agents.
- Two main approaches have emerged: antigen-specific and non-antigen-specific immunotherapy.
Purpose of the Study:
- To review novel immunotherapeutic agents for lung cancer.
- To discuss antigen-specific immunotherapy (cancer vaccination) and non-antigen-specific immunotherapy (cancer immunomodulation).
- To highlight recent clinical trial outcomes and future directions.
Main Methods:
- Review of antigen-specific vaccines (MAGE-A3, L-BLP25, belagenpumatucel-L, TG4010) in various stages of non-small cell lung cancer (NSCLC).
- Review of non-antigen-specific immunotherapies, including monoclonal antibodies targeting CTLA-4 and PD-1/PD-L1 pathways.
- Analysis of recent Phase II trial data regarding efficacy and tolerability.
Main Results:
- Phase II trials of novel immunotherapies in lung cancer have demonstrated promising efficacy and tolerability.
- Several agents, including cancer vaccines and immune checkpoint inhibitors, are advancing to Phase III trials.
- Ongoing and recently completed Phase III trials are expected to yield significant results.
Conclusions:
- Immunotherapy has become a promising strategy for treating lung cancer.
- Both cancer vaccination and immune modulation offer potential therapeutic benefits.
- Further clinical evaluation in Phase III trials is crucial for establishing the role of these novel treatments in lung cancer care.
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