Back to Search Start Over

First-line erlotinib and bevacizumab in patients with locally advanced and/or metastatic non-small-cell lung cancer: a phase II study including molecular imaging.

Authors :
Dingemans AC
de Langen AJ
van den Boogaart V
Marcus JT
Backes WH
Scholtens HTGM
van Tinteren H
Hoekstra OS
Pruim J
Brans B
Thunnissen FB
Smit EF
Groen HJM
Source :
Annals of oncology : official journal of the European Society for Medical Oncology [Ann Oncol] 2011 Mar; Vol. 22 (3), pp. 559-566. Date of Electronic Publication: 2010 Aug 11.
Publication Year :
2011

Abstract

Background: Both bevacizumab and erlotinib have clinical activity in non-small-cell lung cancer (NSCLC). Preclinical data suggest synergistic activity.<br />Patients and Methods: Chemonaive patients with stage IIIb or IV non-squamous NSCLC were treated with bevacizumab 15 mg/kg every 3 weeks and erlotinib 150 mg daily until progression. Primary end point was non-progression rate (NPR) at 6 weeks. Tumor response was measured with computed tomography, 2-[fluorine-18]fluoro-2-deoxy-D-glucose (FDG-PET) and dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). KRAS and EGFR mutations were assessed in tumor samples.<br />Results: Forty-seven patients were included. Median follow-up was 15.2 months. NPR at 6 weeks was 75%. Median progression-free survival (PFS) was 3.8 [95% confidence interval (CI) 2.3-5.4] months and median overall survival (OS) was 6.9 (95% CI 5.5-8.4) months. Toxicity was mainly mild. The presence of KRAS (n = 10) or EGFR mutations (n = 5) did not influence outcome. After 3 weeks of treatment, >20% decrease in standard uptake value as measured with positron emission tomography predicted for longer PFS (9.7 versus 2.8 months; P = 0.01) and >40% decrease in K(trans) as assessed by DCE-MRI did not predict for longer PFS.<br />Conclusions: First-line treatment with bevacizumab and erlotinib in stage IIIb/IV NSCLC resulted in an NPR of 75%. OS was however disappointing. Early response evaluation with FDG-PET is the best predictive test for PFS.

Details

Language :
English
ISSN :
1569-8041
Volume :
22
Issue :
3
Database :
MEDLINE
Journal :
Annals of oncology : official journal of the European Society for Medical Oncology
Publication Type :
Academic Journal
Accession number :
20702788
Full Text :
https://doi.org/10.1093/annonc/mdq391