Use of novel second-line targeted therapies in non-small cell lung cancer

Erminia Massarelli1, Roy S Herbst

  • 1Department of Thoracic/Head and Neck Medical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX 77030, USA.

Seminars in Oncology
|February 14, 2006
PubMed

Insights

New targeted therapies show promise for advanced non-small cell lung cancer (NSCLC). Agents blocking EGFR or angiogenesis offer improved outcomes for patients with refractory disease.

Area of Science:

  • Oncology
  • Medical Science

Background:

  • Non-small cell lung cancer (NSCLC) is a leading cause of cancer mortality globally.
  • Metastatic disease at diagnosis limits curative local treatment options for over half of NSCLC patients.
  • Current standard cytotoxic chemotherapy for NSCLC has limitations, necessitating novel approaches for refractory cases.

Purpose of the Study:

  • To review advancements in NSCLC treatment, focusing on molecular targeted therapies.
  • To evaluate the efficacy of epidermal growth factor receptor (EGFR) inhibitors and angiogenesis inhibitors in refractory NSCLC.
  • To assess the potential of these targeted agents in improving survival and quality of life.

Main Methods:

  • Literature review of recent clinical studies on NSCLC treatment.
  • Analysis of response rates for EGFR-targeted agents (gefitinib, erlotinib, cetuximab).
  • Evaluation of outcomes for angiogenesis inhibitors (bevacizumab, ZD6474) in combination regimens.

Main Results:

  • EGFR inhibitors demonstrated overall response rates of 18.4% (gefitinib), 8.9% (erlotinib), and 3.3% (cetuximab).
  • Angiogenesis inhibitors showed promise: bevacizumab (27% response rate with paclitaxel/carboplatin) and ZD6474 (26% response rate with docetaxel).
  • These targeted therapies represent significant progress in managing advanced and refractory NSCLC.

Conclusions:

  • Molecular targeted therapies, including EGFR and angiogenesis inhibitors, offer new avenues for treating refractory NSCLC.
  • Combination strategies involving these agents may enhance patient survival and quality of life.
  • Continued research into targeted therapies is crucial for improving outcomes in NSCLC.

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