BACKGROUND: Gemcitabine has been recognized as a standard chemotherapy in advanced pancreas cancer(APC). We conducted a phase II study of a triple combination regimen (GPT) consisting of gemcitabine (G), cisplatin(P) and erlotinib (T) in patients with APC. PATIENTS AND METHODS: Chemotherapy-naïve patients with locally advanced or metastatic, histologically confirmed adenocarcinoma of the pancreas were treated with erlotinib 100 mg daily, 1,000 mg/m2 of gemcitabine and 25 mg/m2 of cisplatin administered on days 1 and 8, respectively, every 3 weeks.The primary end point was objective response. Secondary end points included progression-free survival, overall survival and toxicity. The study was designed according to the optimal two-stage design. RESULTS: Twenty-two patients were enrolled between June 2009 and August 2010. No complete response was achieved and partial response was observed in 5 patients (26%), Stable disease in 7 (37%), and progressive disease in 7 (37%). The median time to progression was 4.0 months (95% CI: 2.9–5.1 months), and the median overall survival 6.8 months (95% CI: 3.7–9.9 months). The response rate in stage I reached the target (≥3/22,p0010%) established for movement to stage II but this study was determined to close earlier than planned because of unexpected treatment-related deaths (3 patients). CONCLUSION: The triple regimen of GPT is effective for APC. Treatment related mortalities factored early closure of this GPT protocol. Considering effect and toxicity, this triple regimen seems to offer few benefits to the patients compared with gemcitabine based doublets. (ClinicalTrials.gov number, NCT00922896).
BACKGROUND:Gemcitabine has been recognized as a standard chemotherapy in advanced pancreas cancer(APC). We conducted a phase II study of a triple combination regimen (GPT) consisting of gemcitabine (G), cisplatin(P) and erlotinib (T) in patients with APC. PATIENTS AND METHODS: Chemotherapy-naïve patients with locally advanced or metastatic, histologically confirmed adenocarcinoma of the pancreas were treated with erlotinib 100 mg daily, 1,000 mg/m2 of gemcitabine and 25 mg/m2 of cisplatin administered on days 1 and 8, respectively, every 3 weeks.The primary end point was objective response. Secondary end points included progression-free survival, overall survival and toxicity. The study was designed according to the optimal two-stage design. RESULTS: Twenty-two patients were enrolled between June 2009 and August 2010. No complete response was achieved and partial response was observed in 5 patients (26%), Stable disease in 7 (37%), and progressive disease in 7 (37%). The median time to progression was 4.0 months (95% CI: 2.9–5.1 months), and the median overall survival 6.8 months (95% CI: 3.7–9.9 months). The response rate in stage I reached the target (≥3/22,p0010%) established for movement to stage II but this study was determined to close earlier than planned because of unexpected treatment-related deaths (3 patients). CONCLUSION: The triple regimen of GPT is effective for APC. Treatment related mortalities factored early closure of this GPT protocol. Considering effect and toxicity, this triple regimen seems to offer few benefits to the patients compared with gemcitabine based doublets. (ClinicalTrials.gov number, NCT00922896).
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