Abstract
Background
This study evaluated the efficacy and safety of switch maintenance erlotinib and bevacizumab after induction therapy with carboplatin/pemetrexed/bevacizumab for non-squamous non-small cell lung cancer (NSCLC) with wild-type EGFR.
Methods
Enrolled patients had treatment-naïve, advanced non-squamous NSCLC with wild-type EGFR. Carboplatin [area under the curve (AUC) 5.0], pemetrexed (500 mg/m2) and bevacizumab (15 mg/kg) were administered on day 1 every 3 weeks for 4–6 cycles. Maintenance therapy with erlotinib (150 mg/body) on day 1 through 21 plus bevacizumab on day 1 every 3 weeks was continued until disease progression or unacceptable toxicity. The primary endpoint was 6-month progression-free survival (PFS); secondary endpoints included overall survival (OS), overall response rate (ORR), toxicity, and quality of life (QOL).
Results
Fifty-one patients were enrolled between September 2011 and June 2014. The median number of cycles for induction and maintenance therapy was 4 (range 1–6) and 4 (range 1–20). Twenty-nine patients (58%) received maintenance therapy. The 6-month PFS rate was 59.5% [95% confidence interval (CI) 45.0–72.6%]. The ORR was 48.0% (95% CI 34.8–61.5%), and disease control rate was 86.0% (95% CI 73.8–93.0%). The median PFS and OS were 6.5 months (95% CI 5.8–7.2 months) and 21.4 months (95% CI 15.9–26.9 months), respectively. Although grades ≥ 3 adverse events were observed in 33 patients (66.0%), most were hematologic; there was no febrile neutropenia. QOL was maintained throughout treatment.
Conclusions
Carboplatin/pemetrexed/bevacizumab followed by erlotinib and bevacizumab maintenance showed modest efficacy and was well tolerated in non-squamous NSCLC patients with wild-type EGFR.
Trial registration
UMIN000005872.
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Acknowledgements
We thank all the patients, their families, and investigators who participated in this study.
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This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Takashina, T., Asahina, H., Oizumi, S. et al. A phase II study of carboplatin, pemetrexed, and bevacizumab followed by erlotinib and bevacizumab maintenance for non-squamous non-small cell lung cancer with wild-type EGFR (HOT1101). Int J Clin Oncol 23, 1060–1069 (2018). https://doi.org/10.1007/s10147-018-1318-z
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DOI: https://doi.org/10.1007/s10147-018-1318-z