Navigating resistance to ALK inhibitors in the lorlatinib era: a comprehensive perspective on NSCLC

Maria Gemelli1, Adriana Albini2, Gianpiero Catalano3

  • 1Medical Oncology Unit, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) MultiMedica, Milan, Italy.

Abstract

Insights

Understanding resistance to anaplastic lymphoma kinase (ALK) inhibitors is crucial for treating non-small cell lung cancer (NSCLC). This review details resistance mechanisms, molecular testing, and new therapies for improved patient outcomes.

Area of Science:

  • Oncology
  • Pharmacology
  • Molecular Biology

Background:

  • Anaplastic lymphoma kinase (ALK) rearrangements are key drivers in non-small cell lung cancer (NSCLC).
  • Targeted therapies with ALK inhibitors have transformed NSCLC treatment.
  • Emergence of resistance mechanisms necessitates continuous research and updated strategies.

Purpose of the Study:

  • To review resistance mechanisms to ALK inhibitors in NSCLC.
  • To explore identification and management strategies for ALK inhibitor resistance.
  • To discuss the role of molecular testing and novel therapeutic approaches.

Main Methods:

  • Comprehensive literature search of Pubmed and Embase databases.
  • Analysis of resistance mechanisms, including on-target and off-target resistance.
  • Review of current and emerging ALK inhibitors and combination therapies.

Main Results:

  • Resistance to ALK inhibitors is complex, involving on-target and off-target mechanisms.
  • Molecular testing is essential for diagnosing resistance and guiding treatment selection.
  • Novel therapeutic strategies and ongoing clinical trials offer new hope for patients.

Conclusions:

  • Understanding ALK inhibitor resistance is critical for optimizing NSCLC treatment.
  • Molecular profiling and comprehensive assessment are key to managing resistance.
  • The field is rapidly evolving with new agents and therapeutic combinations.