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Afatinib vs Chemotherapy as First-Line Treatment in Non-Small Cell Lung Cancer With Epidermal Growth Factor Receptor Mutation
A randomised, open-label, Phase III study of afatinib* vs chemotherapy as first-line treatment for patients with Stage IIIB or IV adenocarcinoma of the lung harbouring an epidermal growth factor receptor (EGFR) activating mutation.
Patients were recruited at centres in Argentina, Australia, Belgium, Brazil, Canada, Chile, France, Germany, Hong Kong, Hungary, Ireland, Italy, Japan, South Korean, Malaysia, Peru, Philippines, Romania, Russia, Taiwan, Thailand, Ukraine, the UK and the US.
Trial CT.gov-Identifier: NCT00949650
Stage IIIB/IV adenocarcinoma of the lung
EGFR mutation positive
No prior treatment with chemotherapy for advanced/metastatic disease
No prior treatment with EGFR inhibitors
Eastern Cooperative Oncology Group (ECOG) performance status of 0–1
Stable brain metastases at baseline permitted
Primary outcome measure:
Secondary outcome measures:
PFS by independent review:
In the overall population, median PFS was significantly longer with afatinib at 11.1 months compared with 6.9 months with cisplatin/pemetrexed.
Median PFS among those with common EGFR mutations (del19 and L858R) was 13.6 months for afatinib and 6.9 months for cisplatin/pemetrexed.
In the overall population, there was no significant OS benefit with afatinib treatment. In a prespecified subgroup analysis of patients with del19 mutation, afatinib demonstrated ≥1 year OS benefit compared with cisplatin/pemetrexed.
Patients with del19 mutations:
The most common treatment-related adverse events were:
Afatinib improved global health status and HRQoL, and delayed time to deterioration for cough and dyspnoea, when compared with cisplatin/pemetrexed.
Compared with cisplatin/pemetrexed, afatinib significantly delayed the time to deterioration of cough and dyspnoea. The delayed deterioration time for pain was not statistically significant.
Afatinib also showed significant improvements in global health status (as an indicator of overall HRQoL).
Afatinib significantly prolonged PFS over standard of care chemotherapy. Patients with advanced adenocarcinoma of the lung and EGFR del19 mutation treated with afatinib had a significant OS benefit of more than 1 year compared with cisplatin/pemetrexed chemotherapy.
Sequist LV, et al. J Clin Oncol 2013;31(27):3327–3334.
Yang JC, et al. J Clin Oncol 2013;31(27):3342–3350.
Yang JC, et al. Lancet Oncol 2015;16(2):141–151.
Clinicaltrials.gov. https://clinicaltrials.gov/ct2/show/NCT00949650 (Accessed: July 2017).
Prof. Lynch on LUX-Lung 3
*Afatinib is approved in more than 80 markets including the EU, Japan, Taiwan, and Canada under the brand name GIOTRIF®, in the US under the brand name GILOTRIF® and in India under the brand name Xovoltib®; for the full list please see here. Registration conditions differ internationally; please refer to locally approved prescribing information.
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