Randomized, phase III trial of figitumumab in combination with erlotinib versus erlotinib alone in patients with nonadenocarcinoma nonsmall-cell lung cancer.

Abstract

BACKGROUND:

Figitumumab (CP-751,871) is a fully human IgG2 monoclonal antibody that inhibits the insulin-like growth factor 1 receptor. This multicenter, randomized, phase III study investigated the efficacy of figitumumab plus erlotinib compared with erlotinib alone in patients with pretreated, nonsmall-cell lung cancer (NSCLC).

PATIENTS AND METHODS:

Patients (stage IIIB/IV or recurrent disease with nonadenocarcinoma histology) who had previously received at least one platinum-based regimen were randomized to receive open-label figitumumab (20 mg/kg) plus erlotinib 150 mg/day or erlotinib alone every 3 weeks. The primary end point was overall survival (OS).

RESULTS:

Of 583 patients randomized, 579 received treatment. The study was closed early by an independent data safety monitoring committee due to results crossing the prespecified futility boundary. At the final analysis, median OS was 5.7 months for figitumumab plus erlotinib and 6.2 months for erlotinib alone [hazard ratio (HR) 1.09; 95% confidence interval (CI) 0.91-1.31; P = 0.35]. Median progression-free survival was 2.1 months for figitumumab plus erlotinib and 2.6 months for erlotinib alone (HR 1.08; 95% CI 0.90-1.29; P = 0.43). Treatment-related nonfatal serious adverse events occurred in 18% and 5% of patients in the figitumumab arm or erlotinib alone arm, respectively. There were nine treatment-related deaths (three related to both drugs, four related to erlotinib alone and two related to figitumumab).

CONCLUSIONS:

The addition of figitumumab to erlotinib did not improve OS in patients with advanced, pretreated, nonadenocarcinoma NSCLC. Clinical development of figitumumab has been discontinued.

CLINICAL TRIAL ID:

NCT00673049.

• Authors: G V Scagliotti, I Bondarenko, F Blackhall, F Barlesi, T-C Hsia, J Jassem, J Milanowski, S Popat, J M Sanchez-Torres, S Novello, R J Benner, S Green, K Molpus, J-C Soria, F A Shepherd
• Journal: Annals of oncology : official journal of the European Society for Medical Oncology (Ann Oncol) Vol. 26 Issue 3 Pg. 497-504 (Mar 2015) ISSN: 1569-8041 [Electronic] England
• PMID: 25395283 (Publication Type: Clinical Trial, Phase III, Comparative Study, Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
• Copyright: © The Author 2014. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please email: [email protected].

Chemical References

• Antibodies, Monoclonal
• Erlotinib Hydrochloride
• figitumumab

Topics

• Adult
• Aged
• Aged, 80 and over
• Antibodies, Monoclonal (administration & dosage)
• Antineoplastic Combined Chemotherapy Protocols (administration & dosage)
• Carcinoma, Non-Small-Cell Lung (diagnosis, drug therapy)
• Erlotinib Hydrochloride (administration & dosage)
• Female
• Follow-Up Studies
• Humans
• Lung Neoplasms (diagnosis, drug therapy)
• Male
• Middle Aged
• Prospective Studies