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Gemcitabine and vinorelbine in pemetrexed-pretreated patients with malignant pleural mesothelioma
Authors:Zucali Paolo A  Ceresoli Giovanni L  Garassino Isabella  De Vincenzo Fabio  Cavina Raffaele  Campagnoli Elisabetta  Cappuzzo Federico  Salamina Silvia  Soto Parra Hector J  Santoro Armando
Affiliation:Department of Medical Oncology and Hematology, Humanitas Clinical Institute of Rozzano, Milan, Italy. paolo.zucali@humanitas.it
Abstract:BACKGROUND: Pemetrexed-cisplatin chemotherapy is the standard of care in the first-line treatment of unresectable malignant pleural mesothelioma (MPM). Second-line cytotoxic therapy is considered for a growing group of patients, but the optimal treatment has not been defined to date. Gemcitabine and vinorelbine have shown activity in the first-line setting. The objective of this study was to evaluate the activity and toxicity of the gemcitabine-vinorelbine combination in pemetrexed-pretreated patients with MPM. METHODS: From January 2004 to September 2006, 30 consecutive patients who were pretreated with pemetrexed with or without a platinum-derivative were enrolled. Gemcitabine 1000 mg/m(2) and vinorelbine 25 mg/m(2) were administered intravenously on Days 1 and 8 every 3 weeks. Treatment was repeated for a maximum of 6 cycles or until progression or unacceptable toxicity. RESULTS: A partial response was observed in 3 patients (10%; 95% confidence interval [CI], 2.1-26.5%), and 10 patients (33.3%; 95% CI, 17.3-52.8%) had stable disease after treatment. Overall, 13 patients (43.3%; 95% CI, 25.5-62.6%) achieved disease control. The median time to progression was 2.8 months (range, 0.6-12.1 months), and the median survival was 10.9 months (range, 0.8-25.3 months). Hematologic toxicity was acceptable, with grade 3 or 4 neutropenia occurring in 11% of patients and thrombocytopenia occurring in 4% of patients; no case of febrile neutropenia was observed. Nonhematologic toxicity generally was mild. CONCLUSIONS: The gemcitabine and vinorelbine combination was moderately active and had an acceptable toxicity profile in pemetrexed-pretreated patients with MPM. The role of second-line treatment in MPM needs to be evaluated in prospective trials in large series of patients who are stratified according to previous treatment and prognostic factors.
Keywords:malignant pleural mesothelioma  second‐line chemotherapy  pemetrexed‐pretreated patients  gemcitabine‐vinorelbine combination
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