AVF4236s: Bevacizumab (Avastin®) + Erlotinib as First-line Therapy for Stage IIIB/IV or Recurrent, Non-squamous Cell Lung Cancer
The combination of Bevacizumab and Erlotinib show encouraging activity for patients with
previously treated, non-small-cell lung cancer. In a phase I/II study of erlotinib and
bevacizumab in patients with nonsquamous stage IIIB/IV NSCLC with one or more prior
chemotherapy exposures, a recommended phase II dose was established at erlotinib 150 mg/day
orally plus bevacizumab 15 mg/kg intravenously every 21 days (13) Forty patients were
treated at the recommended Phase II dose. The median age was 59 years (range, 36 to 72
years), 21 were female, 30 had adenocarcinoma histology, nine were never-smokers, and 22 had
> or = two prior regimens (three patients had > or = four prior regimens). The most common
adverse events were mild to moderate rash, diarrhea, and proteinuria. No pharmacokinetic
interactions were identified. Eight patients (20.0%; 95% CI, 7.6% to 32.4%) had partial
responses and 26 (65.0%; 95% CI, 50.2% to 79.8%) had stable disease as their best response.
The median overall survival for the 34 patients treated at the phase II dose was 12.6
months, with progression-free survival of 6.2 months. These data compare favorably with
conventional chemotherapy in the salvage setting for NCSLC where the response rates are <
10% and median survivals are 6-8 months (14-16).
In an attempt to improve the therapeutic index for initial therapy of metastatic NSCLC, the
combination of bevacizumab and erlotinib is being proposed as first-line treatment in place
of conventional chemotherapy. The regimen will be beneficial if toxicity is reduced and
efficacy is unchanged or if efficacy is improved. Since this regimen causes no hair loss,
minimal nausea and no cytopenia, which nearly eliminated the risks of infections and
bleeding, the combination of targeted agents appears to be better tolerated than
conventional chemotherapy. Efficacy may also be improved since its activity in the salvage
setting when patients are less likely to respond to any treatment rivals that of
conventional chemotherapy in the untreated setting. In addition, erlotinib alone in the
untreated setting can yield results that are not dissimilar from chemotherapy under similar
conditions. Hence, it is hypothesized that the combination of erlotinib plus bevacizumab can
produce superior results with less toxicity. This trial is intended to provide pilot data
for a future randomized trial of this combination of targeted agents versus conventional
chemotherapy for advanced NSCLC.
Interventional
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
Overall survival
Aug 2007-Aug 2007
No
Wallace Akerley, MD
Principal Investigator
University of Utah
United States: Institutional Review Board
HCI24377
NCT00585377
August 2007
December 2013
Name | Location |
---|---|
University of Utah | Salt Lake City, Utah |