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.

Abstract

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.

Related Concept Videos

Targeted Cancer Therapies02:57

Targeted Cancer Therapies

The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
8.5K
Treatment Resistant Cancers02:56

Treatment Resistant Cancers

Cancer is the second leading cause of death in the United States. A cancer cell is genetically unstable and hence can mutate faster. They can also modify their microenvironment and escape immune surveillance. The difficulties in treating cancer are further compounded by the emergence of rapid resistance to anticancer drugs. The most common ways to attain resistance in cancer cells include alteration in drug transport and metabolism, modification of drug target, elevated DNA damage response, or...
3.6K
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers01:26

Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers

Receptor tyrosine kinase inhibitors (TKIs) and calcium channel blockers (CCBs) are two critical categories of drugs employed in the treatment of pulmonary artery hypertension (PAH). PAH is a disease that causes high blood pressure in the pulmonary arteries, resulting in chest pain, fatigue, and shortness of breath.
TKIs, such as imatinib (Gleevec), are particularly effective in tackling the growth and mitogenic factors that become upregulated in PAH patients. These factors contribute to the...
354
Combination Therapies and Personalized Medicine02:50

Combination Therapies and Personalized Medicine

Combining two or more treatment methods increases the life span of cancer patients while reducing damage to vital organs or tissue from the overuse of a single treatment. Combination therapy also targets different cancer-inducing pathways, thus reducing the chances of developing resistance to treatment.
The combination of the drug acetazolamide and sulforaphane is a good example of combination therapy to treat cancer. The cells in the interior of a large tumor often die due to the hypoxic and...
5.7K
Mitogens and the Cell Cycle02:38

Mitogens and the Cell Cycle

Mitogens and their receptors play a crucial role in controlling the progression of the cell cycle. However, the loss of mitogenic control over cell division leads to tumor formation. Therefore, mitogens and mitogen receptors play an important role in cancer research. For instance, the epidermal growth factor (EGF) - a type of mitogen and its transmembrane receptor (EGFR), decides the fate of the cell's proliferation. When EGF binds to EGFR, a member of the ErbB family of tyrosine kinase...
7.5K