Sorafenib in patients with advanced biliary tract carcinoma: a phase II trial
C Bengala1, F Bertolini, N Malavasi
1Division of Medical Oncology, University Hospital, University of Modena and Reggio Emilia, 41100 Modena, Italy. carmelo.bengala@unimore.it
Background:
Advanced biliary tract carcinoma has a very poor prognosis, with chemotherapy being the mainstay of treatment. Sorafenib, a multikinase inhibitor of VEGFR-2/-3, PDGFR-beta, B-Raf, and C-Raf, has shown to be active in preclinical models of cholangiocarcinoma.
Methods:
We conducted a phase II trial of single-agent sorafenib in patients with advanced biliary tract carcinoma. Sorafenib was administered at a dose of 400 mg twice a day. The primary end point was the disease control rate at 12 weeks.
Results:
A total of 46 patients were treated. In all, 26 (56%) had received chemotherapy earlier, and 36 patients completed at least 45 days of treatment. In intention-to-treat analysis, the objective response was 2% and the disease control rate at 12 weeks was 32.6%. Progression-free survival (PFS) was 2.3 months (range: 0-12 months), and the median overall survival was 4.4 months (range: 0-22 months). Performance status was significantly related to PFS: median PFS values for ECOG 0 and 1 were 5.7 and 2.1 months, respectively (P=0.0002). The most common toxicities were skin rash (35%) and fatigue (33%), requiring a dose reduction in 22% of patients.
Conclusions:
Sorafenib as a single agent has a low activity in cholangiocarcinoma. Patients having a good performance status have a better PFS. The toxicity profile is manageable.
Insights
Single-agent sorafenib showed limited efficacy in advanced biliary tract carcinoma. Good performance status correlated with better progression-free survival, and toxicities were manageable.
Area of Science:
- Oncology
- Medical Research
Background:
- Advanced biliary tract carcinoma (BTC) has a poor prognosis, with chemotherapy as the primary treatment.
- Sorafenib, a multikinase inhibitor, demonstrated preclinical activity in cholangiocarcinoma models.
Purpose of the Study:
- To evaluate the efficacy and safety of single-agent sorafenib in patients with advanced biliary tract carcinoma.
Main Methods:
- A phase II trial administered sorafenib (400 mg twice daily) to 46 patients with advanced BTC.
- The primary endpoint was the disease control rate at 12 weeks.
Main Results:
- The objective response rate was 2%, and the 12-week disease control rate was 32.6%.
- Median progression-free survival (PFS) was 2.3 months, and median overall survival was 4.4 months.
- Good performance status (ECOG 0) was linked to significantly longer PFS (5.7 months vs. 2.1 months for ECOG 1).
Conclusions:
- Single-agent sorafenib exhibits low activity in advanced cholangiocarcinoma.
- Patient performance status is a key factor for predicting PFS.
- The observed toxicities, including skin rash and fatigue, were manageable and often required dose reduction.
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