Related Experiment Video
Updated: Apr 12, 2026

Establishment and Characterization of Three Afatinib-resistant Lung Adenocarcinoma PC-9 Cell Lines Developed with Increasing Doses of Afatinib
Published on: June 26, 2019
Erlotinib in second-line therapy for non-small cell lung cancer - A clinical case
Alexandra Araújo1, Marta Soares2, Isabel Azevedo2
1Interna de Oncologia Médica, Instituto Português de Oncologia Francisco Gentil - Centro Regional de Oncologia do Porto, EPE.
Abstract:
the epidermal growth-factor receptor (EGFR) and its signaling pathway have become a major target for therapy of non-small cell lung cancer (NSCLC). After the BR.21 study showed its effectiveness and its tolerability in older patients, erlotinib, a specific EGFR tyrosine-kinase inhibitor, has been approved for NSCLC therapy after failure of treatment with at least one line of chemotherapy (CT). The authors present the case of a 63 years-old female patient, with a history of angina pectoris, who was diagnosed with a lung adenocarcinoma. Because of poor tolerance to first-line CT, she had second-line treatment with erlotinib. There was a good response to therapy, along with symptomatic improvement. Adverse effects were light to moderate, well tolerated, and required no dose reduction. Rev Port Pneumol 2008; XIV (Supl 3): S17-S22.
Insights
Erlotinib, an epidermal growth factor receptor (EGFR) inhibitor, shows effectiveness and tolerability in treating non-small cell lung cancer (NSCLC) in older patients. This case study highlights its positive response and manageable side effects in a patient with lung adenocarcinoma.
Area of Science:
- Oncology
- Pharmacology
Background:
- Epidermal growth factor receptor (EGFR) signaling is a key therapeutic target in non-small cell lung cancer (NSCLC).
- Erlotinib, an EGFR tyrosine-kinase inhibitor, is approved for NSCLC post-chemotherapy failure, demonstrating efficacy and tolerability in elderly populations.
Purpose of the Study:
- To present a case study of a 63-year-old female patient with lung adenocarcinoma receiving second-line erlotinib treatment.
- To evaluate the response and tolerability of erlotinib in a patient with poor tolerance to first-line chemotherapy.
Main Methods:
- Case report of a 63-year-old female diagnosed with lung adenocarcinoma.
- Second-line treatment with erlotinib following intolerance to first-line chemotherapy.
- Monitoring of therapeutic response and adverse effects.
Main Results:
- The patient exhibited a good response to erlotinib therapy.
- Symptomatic improvement was observed.
- Adverse effects were mild to moderate and well-tolerated, without requiring dose reduction.
Conclusions:
- Erlotinib is an effective second-line treatment option for non-small cell lung cancer (NSCLC) in patients with poor tolerance to chemotherapy.
- The drug demonstrates a favorable safety profile with manageable side effects in this patient population.
More Related Videos
09:38Establishing Dual Resistance to EGFR-TKI and MET-TKI in Lung Adenocarcinoma Cells In Vitro with a 2-step Dose-escalation Procedure
Published on: August 11, 2017
06:51Utilizing 18F-FDG PET/CT Imaging and Quantitative Histology to Measure Dynamic Changes in the Glucose Metabolism in Mouse Models of Lung Cancer
Published on: July 21, 2018
Related Concept Videos
Targeted Cancer Therapies
There are several types of targeted therapies against...
Treatment for Pulmonary Arterial Hypertension: Receptor Tyrosine Kinase Inhibitors and Calcium Channel Blockers
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...
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...