Journal
AMERICAN JOURNAL OF CLINICAL ONCOLOGY-CANCER CLINICAL TRIALS
Volume 34, Issue 1, Pages 50-52Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/COC.0b013e3181d26b01
Keywords
pancreatic cancer; lapatinib; gemcitabine
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Funding
- Glaxo Smith Kline
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Purpose: To determine the overall survival for patients with metastatic pancreatic cancer treated with lapatinib and gemcitabine. Materials and Methods: Patients with metastatic pancreatic cancer received lapatinib, 1,500 mg/d, and Gemcitabine, 1 g/m(2)/wk for 3 weeks followed by 1 week off, until disease progression. This multicenter phase II study was planned to enter 125 patients to evaluate whether the treatment regimen could achieve a 1-year survival of 30% and a median survival of 7 months. An additional subset of 20 patients were to receive 2 months of single agent lapatinib followed by lapatinib and gemcitabine. Results: At a planned 6 month analysis, the Brown University Oncology Group Data Safety Monitoring Board terminated accrual after 29 patients because of futility analysis. The median survival was 4 months (95% confidence interval, 3.0 5.0 months). Three of the 29 (10%) patients had a partial response. The 4 patients who received single agent lapatinib all progressed at 1 month. Conclusion: Lapatinib is not effective in pancreatic cancer. Evaluation of HER2 inhibitors in pancreatic cancer is not warranted.
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