Abstract
Pemetrexed plus platinum followed by pemetrexed maintenance has been one of the standard first-line treatments in advanced nonsquamous non-small cell lung cancer (NSCLC), but little is known regarding its safety and efficacy for patients with interstitial lung disease (ILD). The medical records of 24 patients with advanced nonsquamous NSCLC and preexisting ILD who received pemetrexed and platinum doublet therapy with and without pemetrexed maintenance in the first-line setting between December 2009 and June 2016, were retrospectively reviewed. The median progression-free survival time was 4.7 months, and the median overall survival time was 9.5 months. Of the 24 patients analyzed, six received pemetrexed maintenance. Acute exacerbation of ILD (AE-ILD) occurred in five (20.8 %) of 24 patients, including two fatal cases. The treatment with pemetrexed plus platinum has a high risk of AE-ILD in patients with advanced nonsquamous NSCLC and preexisting ILD.
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