Gemcitabine in combination with oxaliplatin as second-line therapy of advanced and metastatic NSCLC

• Published in: Journal of clinical oncology Vol. 25; no. 18_suppl; p. 18157
• Main Authors: Alencar, A. J., Blaya, M., Raez, L., Farfan, N., Lopes, G., Walker, G., Flores, A., Macintyre, J., Rocha-Lima, C.
• Format: Journal Article
• Language: English
• Published: 20.06.2007
• DOI: 10.1200/jco.2007.25.18_suppl.18157
• ISSN: 0732-183X

Abstract only 18157 Background: Single agent gemcitabine is active as second line therapy in NSCLC. Oxaliplatin may be non-cross resistant with the other platinum-containing agents used as first-line therapy in NSCLC. The combination of gemcitabine and oxaliplatin (GEMOX) is synergistic in pre-clinical models. Methods: A phase II, non-randomized trial was designed to assess the efficacy and tolerability of gemcitabine 1,000 mg/m 2 over 100 min in combination with oxaliplatin 100 mg/m2 over 2 hours both given on days 1 and 15 of each 28-day cycle. Patients with NSCLC were eligible if they had progressed after first line treatment. Primary endpoint was tumor response rate. Planned sample size is 30 patients over a period of 2 years. Functional Assessment of Cancer Therapy- Lung (FACT-L) v.4 questionaire was used to assess quality of life of patients on therapy. Results: Twenty-two patients have been enrolled. 13 males (59%) and 9 females (41%). 15 Hispanic (68%), 4 Caucasian (18%), and 3 African-American (13%). Median age is 55 yrs. Histologic subtypes are as follows: adenocarcinoma, 12; NSCLC not otherwise specified 7; squamous cell carcinoma, 3. Nine patients had an ECOG performance status (PS) of 0 (41%) and 13 had a PS of 1 (59%). Two patients were never smokers. A total of 56 cycles have been administered (median 2, range 1 to 6). GEMOX as second-line therapy was given to 18 patients (81%), third-line to 4 patients (18%). Two patients died on study from disease progression leading to respiratory and multi-organ failure. The following Grade 3 and 4 adverse events were seen in 2 patients each: fatigue, dyspnea, anemia, and multi-organ failure. Cancer pain was seen in 1 patient. Twenty patients are available for assessment of response. Two patients had a confirmed partial response (10%) and another eight had stable disease (40%). Preliminary results of FACT-L analysis in 19 pts shows improvement in Lung Cancer Subscale (LCS) score in 25% of the patients after 2 cycles of therapy. Conclusions: Combination gemcitabine and oxaliplatin is active and well tolerated as second line treatment for NSCLC. Improvement of LCS score after 2 cycles suggests a clinical benefit that is beyond the observed response rate of 10%. No significant financial relationships to disclose.