From: HubMed - mesothelioma diagnosis <rssfwd@rssfwd.com>
To: shell8377@yahoo.com
Sent: Thursday, March 20, 2008 9:33:07 AM
Subject: Phase II Trial of Pemetrexed and Gemcitabine in Chemotherapy-Naive Malignant Pleural Mesothelioma.
[1]J Clin Oncol. 2008 Mar 20; 26(9): 1465-71
Jänne PA, Simon GR, Langer CJ, Taub RN, Dowlati A, Fidias P, Monberg M, Obasaju C, Kindler H
PURPOSE Pemetrexed and gemcitabine have single-agent activity in malignant pleural mesothelioma (MPM). The combination of pemetrexed/gemcitabine has not previously been studied in MPM to our knowledge. PATIENTS AND METHODS Patients with histologic or cytologic diagnosis of MPM were included. Cohort 1 received gemcitabine 1,250 mg/m(2) on days 1 and 8, with pemetrexed 500 mg/m(2) on day 8, and cohort 2 received gemcitabine 1,250 mg/m(2) on days 1 and 8, with pemetrexed 500 mg/m(2) on day 1. Cycles were repeated every 21 days; all patients were supplemented with folic acid and vitamin B(12) and received dexamethasone. Results One hundred eight patients (cohort 1, n = 56; cohort 2, n = 52) with pleural mesothelioma were enrolled. Among assessable patients, response rate was 26.0% in cohort 1 and 17.1% in cohort 2. Median time to disease progression was 4.34 months for cohort 1 and 7.43 months for cohort 2. Median survival was 8.08 months for cohort 1 (1-year survival = 31.14%) and 10.12 months for cohort 2 (1-year survival = 45.80%). In cohorts 1 and 2, incidence of grade 4 neutropenia was 25.0% and 29.4%, grade 4 thrombocytopenia was 14.3% and 3.9%, grade 3 or 4 anemia was 5.4% and 5.9%, and grade 3 or 4 fatigue was 23.2% and 15.7%, respectively. CONCLUSION The combination of pemetrexed and gemcitabine resulted in moderate clinical activity in MPM. However, the median survival times are similar to those with single-agent pemetrexed and inferior to outcomes observed with cisplatin in combination with an antifolate.
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Source: http://www.hubmed.org/display.cgi?uids=18349397
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