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Immunotherapy in Advanced Non-small Cell Lung Cancer Patients: Ushering Chemotherapy Through the Checkpoint
Bushra Kanwal1, Sharmi Biswas2, Robert S Seminara3
1Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington DC, USA.
Abstract:
New ways of exploiting the immune system for cancer treatment have been tested for decades with moderate outcomes. Based on previous immunotherapy knowledge, agents targeting immune checkpoints seem to be remarkably effective in a wide range of tumors. Immune checkpoint inhibitors in metastatic non-small cell lung cancer (NSCLC) provide longlasting responses in specific patients. Nevertheless, with overall response rates ≤ 20%, combinational protocols for various patient subgroups are needed. A good partner treatment to immunotherapy could be chemotherapy, as it successfully modulates the immune response either by controlling or enhancing the antitumor immune activity. Primary research provides promising results in metastatic NSCLC patients using this approach, but further large-scale trials are needed. The implementation of immunotherapy in nonmetastatic cases is also appealing. We review the potential clinical benefits of immunotherapy alone or in concert with chemotherapy in NSCLC.
Insights
Immunotherapy targeting immune checkpoints shows promise for non-small cell lung cancer (NSCLC). Combining immunotherapy with chemotherapy may improve outcomes for various patient subgroups, warranting further large-scale trials.
Area of Science:
- Oncology
- Immunology
Background:
- Immunotherapy has shown moderate success in cancer treatment over decades.
- Immune checkpoint inhibitors are effective in various tumors, including metastatic non-small cell lung cancer (NSCLC).
- Current response rates for immune checkpoint inhibitors in metastatic NSCLC are below 20%, necessitating combination therapies.
Purpose of the Study:
- To review the potential clinical benefits of immunotherapy alone or in combination with chemotherapy in NSCLC.
- To explore the role of chemotherapy as a partner treatment to enhance antitumor immune activity.
Main Methods:
- Review of existing primary research and clinical trial data.
- Analysis of immunotherapy and chemotherapy combination protocols for different NSCLC patient subgroups.
Main Results:
- Immune checkpoint inhibitors offer long-lasting responses in a subset of metastatic NSCLC patients.
- Chemotherapy can modulate the immune response, potentially enhancing immunotherapy efficacy.
- Preliminary studies show promising results for combining immunotherapy and chemotherapy in metastatic NSCLC.
Conclusions:
- Combinational treatment protocols are needed to improve response rates in NSCLC.
- Further large-scale trials are required to validate the efficacy of immunotherapy combined with chemotherapy.
- Immunotherapy holds appeal for both metastatic and nonmetastatic NSCLC cases.
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Overview of Advanced Functional Groups
Functional groups are groups of atoms with specific chemical properties that occur within organic molecules and are sometimes denoted as “R”. Functional groups can “functionalize” a compound by enabling it to adopt different physical and chemical properties.
Types of Advanced Functional Groups
The table below summarizes some of the major functional groups in organic chemistry.