Pemetrexed in Advanced Non-Small-Cell Lung Cancer: at Progression vs Maintenance Therapy After Induction Chemotherapy (IDA)
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Last updated:19th Nov 2013
Non-small-cell lung cancer (NSCLC) accounts for a majority (approximately 85%) of lung cancer cases. Patients with localized disease can be cured through surgery, but only 20 % are operable.For the majority of patients with advanced disease, palliative cytotoxic chemotherapy remains the recommended therapy. Chemotherapy prolongs survival and improves quality of life. The recommended first-line therapy is 4-6 courses of a platinum in combination with a third generation compound (e.g. gemcitabine, vinorelbine, docetaxel, pemetrexed, paclitaxel). After first-line therapy, it has been recommended to observe the patients and offer second-line chemotherapy at disease progression. Regimens for second-line therapy include docetaxel or pemetrexed monotherapy. Pemetrexed is less toxic and superior to gemcitabine in non-squamous NSCLC, whereas docetaxel is the recommended second-line therapy in squamous cell carcinoma. The results of the studies of maintenance pemetrexed therapy are encouraging; the observed survival benefit is clinically relevant and relatively large considering the poor survival in patients with advanced NSCLC. Furthermore, pemetrexed appears to be well tolerated. There are, however, several limitations to the studies that have been conducted: Relatively few elderly patients and no PS 2 patients were enrolled - and not all patients on the control-arms received pemetrexed at progression. The overall aim of this study is to investigate whether immediate maintenance pemetrexed therapy prolongs survival compared to observation and pemetrexed therapy at progression in patients with advanced NSCLC. Furthermore, it will be explored whether patients with 'performance status' 2 and elderly ? 70 years tolerate and benefit from maintenance therapy; and what characteristics and blood biomarkers are associated with sensitivity and tolerability of such therapy.
|Study start date||2013-11-19|