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Lung cancer management: monitoring and treating resistance development in third-generation EGFR TKIs
D Franceschini1, S Rossi2, M Loi1
1Radiotherapy and Radiosurgery Department- Humanitas Clinical and Research Center, IRCCS , Rozzano, Italy.
Introduction:
Patients treated with third-generation EGFR TKIs will develop resistance to treatment at a certain point. Early detection of resistance occurrence could allow more options for treatment.
Areas Covered:
We discuss the development of third-generation EGFR TKIs, focusing on osimertinib and discuss the most common resistance mechanisms under evaluation. We also debate how this resistance can be detected; particularly we review the possible application of liquid biopsy in this scenario. Lastly we discuss available treatment options when resistance occurs, with an eye on ongoing trials and possible future developments.
Expert Opinion:
As resistance will ultimately develop, a strict instrumental follow-up as per international guidelines is required with the aim of detecting this resistance in an early phase. Detecting an oligoprogression could allow the integration of local ablative therapies while further delaying the need for a systemic therapy change. By exploiting the increasing potentiality of liquid biopsy, in the near future, physicians could be able to understand why a patient develops resistance and therefore can choose the best possible individualized treatment option.
Insights
Third-generation EGFR TKIs resistance is inevitable in cancer patients. Early detection via instrumental follow-up and liquid biopsy can enable timely interventions and personalized treatment strategies.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Third-generation EGFR TKIs are crucial for treating specific cancers.
- Treatment resistance to these TKIs eventually develops in patients.
Purpose of the Study:
- To review resistance mechanisms to third-generation EGFR TKIs, focusing on osimertinib.
- To explore early detection methods for treatment resistance, including liquid biopsy.
- To discuss current and future treatment options for patients with acquired resistance.
Main Methods:
- Literature review of third-generation EGFR TKIs and resistance mechanisms.
- Evaluation of diagnostic techniques for resistance detection.
- Analysis of treatment strategies and clinical trials for resistant disease.
Main Results:
- Common resistance mechanisms to third-generation EGFR TKIs are under active investigation.
- Liquid biopsy shows promise for non-invasively detecting and characterizing resistance.
- Early detection of oligoprogression may allow for local therapies to delay systemic treatment changes.
Conclusions:
- Regular instrumental follow-up is essential for early resistance detection.
- Liquid biopsy can guide individualized treatment selection by elucidating resistance mechanisms.
- Future developments in understanding resistance will enhance therapeutic options for patients.
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