Abstract
Background:
Afatinib has demonstrated clinical benefit in patients with non-small-cell lung cancer progressing after treatment with erlotinib/gefitinib. This phase III trial prospectively assessed whether continued irreversible ErbB-family blockade with afatinib plus paclitaxel has superior outcomes versus switching to chemotherapy alone in patients acquiring resistance to erlotinib/gefitinib and afatinib monotherapy.
Patients and methods:
Patients with relapsed/refractory disease following ≥ 1 line of chemotherapy, and whose tumors had progressed following initial disease control (≥ 12 weeks) with erlotinib/gefitinib and thereafter afatinib (50 mg/day), were randomized 2:1 to receive afatinib plus paclitaxel (40 mg/day; 80 mg/m2/week) or investigator's choice of single-agent chemotherapy. The primary end point was progression-free survival (PFS). Other end points included objective response rate (ORR), overall survival (OS), safety and patient-reported outcomes.
Results:
Two hundred and two patients with progressive disease following clinical benefit from afatinib were randomized to afatinib plus paclitaxel (n ≥ 134) or single-agent chemotherapy (n ≥ 68). PFS (median 5.6 versus 2.8 months, hazard ratio 0.60, P ≥ 0.003) and ORR (32.1% versus 13.2%, P ≥ 0.005) significantly improved with afatinib plus paclitaxel. There was no difference in OS. Global health status/quality of life was maintained with afatinib plus paclitaxel over the entire treatment period. The median treatment duration was 133 and 51 days with afatinib plus paclitaxel and single-agent chemotherapy, respectively; 48.5% of patients receiving afatinib plus paclitaxel and 30.0% of patients receiving single-agent chemotherapy experienced drug-related grade 3/4 adverse events. Treatment-related adverse events were consistent with those previously reported with each agent.
Conclusion:
Afatinib plus paclitaxel improved PFS and ORR compared with single-agent chemotherapy in patients who acquired resistance to erlotinib/gefitinib and progressed on afatinib after initial benefit. LUX-Lung 5 is the first prospective trial to demonstrate the benefit of continued ErbB targeting post-progression, versus switching to single-agent chemotherapy.
Trial registration number:
NCT01085136 (clinicaltrials.gov).
| Original language | English |
|---|---|
| Pages (from-to) | 417-423 |
| Number of pages | 7 |
| Journal | Annals of Oncology |
| Volume | 27 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - Mar 2016 |
Bibliographical note
Publisher Copyright:© The Author 2015. Published by Oxford University Press on behalf of the European Society for Medical Oncology.
funding:
This work was supported by Boehringer Ingelheim. Medical
writing assistance, supported financially by Boehringer Ingelheim,
was provided by Lynn Pritchard of GeoMed, an Ashfield
company, part of UDG Healthcare plc, during the preparation of
this article. There is no applicable grant number
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
-
SDG 3 Good Health and Well-being
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