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Clinical Trial, Phase II
Comparative Study
Journal Article
Phase II trial of gemcitabine/irinotecan in refractory or relapsed small-cell lung cancer.
Clinical Lung Cancer 2005 September
BACKGROUND: Gemcitabine and irinotecan have shown a broad range of activity in solid tumors, including small-cell lung cancer (SCLC), with a synergistic effect on SCLC cell lines. The objective of this phase II trial was to evaluate the activity of gemcitabine/irinotecan in patients with relapsed SCLC.
PATIENTS AND METHODS: Thirty-five patients (15 with refractory disease and 20 with sensitive disease) who had experienced treatment failure with 1 previous chemotherapy regimen were recruited. Treatment consisted of gemcitabine 1,000 mg/m(2) and irinotecan 100 mg/m(2) on days 1 and 8 of a 21-day cycle for a maximum of 6 cycles. Eligibility criteria included an Eastern Cooperative Oncology Group performance status of 0-2, adequate organ function, and signed informed consent.
RESULTS: All 35 patients were assessable for response, survival, and toxicity. Best objective responses exhibited were as follows: complete response in 2 patients (6%), partial response in 4 (11%; 95% confidence interval [CI], 21%-61%), stable disease in 7 (20%; 95% CI, 9%-45%), and progressive disease in 22 (63%; 95% CI, 17%-57%). Median time to disease progression was 3.4 months and median survival was 5.8 months. The 1-year survival rate was 34%. Toxicity was mainly hematologic. Grade 3/4 nausea and vomiting occurred in 9% of patients, neuropathy occurred in 2.8%, and diarrhea occurred in 14.3%. Survival was not significantly different for patients with refractory versus sensitive disease.
CONCLUSION: The combination of gemcitabine/irinotecan was shown to be active as second-line chemotherapy, especially in patients with refractory disease.
PATIENTS AND METHODS: Thirty-five patients (15 with refractory disease and 20 with sensitive disease) who had experienced treatment failure with 1 previous chemotherapy regimen were recruited. Treatment consisted of gemcitabine 1,000 mg/m(2) and irinotecan 100 mg/m(2) on days 1 and 8 of a 21-day cycle for a maximum of 6 cycles. Eligibility criteria included an Eastern Cooperative Oncology Group performance status of 0-2, adequate organ function, and signed informed consent.
RESULTS: All 35 patients were assessable for response, survival, and toxicity. Best objective responses exhibited were as follows: complete response in 2 patients (6%), partial response in 4 (11%; 95% confidence interval [CI], 21%-61%), stable disease in 7 (20%; 95% CI, 9%-45%), and progressive disease in 22 (63%; 95% CI, 17%-57%). Median time to disease progression was 3.4 months and median survival was 5.8 months. The 1-year survival rate was 34%. Toxicity was mainly hematologic. Grade 3/4 nausea and vomiting occurred in 9% of patients, neuropathy occurred in 2.8%, and diarrhea occurred in 14.3%. Survival was not significantly different for patients with refractory versus sensitive disease.
CONCLUSION: The combination of gemcitabine/irinotecan was shown to be active as second-line chemotherapy, especially in patients with refractory disease.
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