Article: Phase II trial of oral rubitecan in previously treated pancreatic cancer patients.
2005 Volume 10, Issue 3, Page(s) 183–190
Abstract: ... with demonstrated responses in patients with pancreatic cancer in early clinical trials. This phase II, open-label ... trial was developed to assess the safety and efficacy of rubitecan in patients with locally advanced or ... by heavily pretreated patients with refractory pancreatic cancer. The overall risk-benefit profile of oral ...
| Abstract | Background: Additional systemic treatments for locally advanced or metastatic pancreatic cancer are needed, as current treatment options produce only modest survival benefits. Rubitecan (Orathecin; Supergen Inc., Dublin, CA, http://www.supergen.com) is an orally active camptothecin derivative with demonstrated responses in patients with pancreatic cancer in early clinical trials. This phase II, open-label trial was developed to assess the safety and efficacy of rubitecan in patients with locally advanced or metastatic pancreatic cancer refractory to conventional chemotherapy. Methods: Fifty-eight patients with failed or relapsed advanced pancreatic cancer after receiving at least one prior chemotherapy regimen were enrolled to receive eight consecutive weeks of treatment with rubitecan at a dose of 1.5 mg/m2 orally on five consecutive days per week, followed by 2 days off therapy, repeatedly. The primary end point was response rate. Time to progression, overall survival, changes in CA19-9 levels, and the composite measure of clinical benefit response were evaluated as secondary end points. Results: Among 43 patients with measurable disease, 7% (3/43) achieved partial responses and 16% (7/43) had disease stabilization for an overall response and disease stabilization rate of 23%. All responses were confirmed by independent radiology review. Median survival was longer in responding patients than in the overall study cohort (10 months versus 3 months). Gastrointestinal and hematologic toxicities were the most commonly reported adverse events. Conclusion: Oral rubitecan produced responses and was well tolerated by heavily pretreated patients with refractory pancreatic cancer. The overall risk-benefit profile of oral rubitecan appears promising, supporting further evaluation in phase III trials in patients with refractory and chemotherapy-naive pancreatic cancer. |
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| MeSH term(s) | Administration, Oral ; Adult ; Aged ; Antineoplastic Agents/administration & dosage ; Antineoplastic Agents/adverse effects ; Antineoplastic Agents/therapeutic use ; Camptothecin/administration & dosage ; Camptothecin/adverse effects ; Camptothecin/analogs & derivatives ; Camptothecin/therapeutic use ; Disease Progression ; Female ; Humans ; Male ; Middle Aged ; Pancreatic Neoplasms/drug therapy ; Pancreatic Neoplasms/pathology ; Survival Analysis | ||||||||||
| Chemical Substances | Antineoplastic Agents ; rubitecan (H19C446XXB) ; Camptothecin (XT3Z54Z28A) | ||||||||||
| Language | English | ||||||||||
| Publishing date | 2005-03 | ||||||||||
| Publishing country | United States | ||||||||||
| Document type | Clinical Trial ; Clinical Trial, Phase II ; Journal Article ; Research Support, Non-U.S. Gov't | ||||||||||
| ZDB-ID | 1409038-7 | ||||||||||
| ISSN | 1083-7159 | ||||||||||
| ISSN | 1083-7159 | ||||||||||
| DOI | 10.1634/theoncologist.10-3-183 | ||||||||||
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| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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