Affiliation:
1. From the University of Michigan Comprehensive Cancer Center, Ann Arbor, MI
Abstract
PurposeThe purpose of this trial was to assess the objective clinical response, toxicity, and time to progression of treatment with 9-Nitro-Camptothecin (9-NC) in patients with advanced chordoma, soft tissue sarcoma (STS), and gastrointestinal stromal tumor (GIST).Patients and MethodsPatients with locally advanced and/or metastatic chordoma, STS, or GIST received 9-NC 1.25 mg/m2orally for 5 consecutive days followed by 2 days of rest. Patients continued on therapy until disease progression, uncontrollable toxicity, or withdrawal of consent.ResultsFrom January 2000 to May 2003, 51 patients (15 chordoma, 23 STS, 13 GIST patients) enrolled. One patient (7%) with chordoma and one patient (4%) with STS had an objective response. Median time to progression was 9.9, 8.0, and 8.3 weeks for chordoma, STS, and GIST patients, respectively. Three- and 6-month progression-free survival rates were 47% and 33% for chordoma patients, 26% and 22% for STS patients, and 31% and 23% for GIST patients, respectively. Ten patients (10%) stopped study drug before disease progression secondary to toxicity. Common adverse events included anemia (42 patients, seven with grade 3/4 toxicity), leukopenia (33 patients, nine with grade 3/4 toxicity), fatigue (30 patients, three with grade 3/4 toxicity), nausea (34 patients, six with grade 3/4 toxicity), and diarrhea (28 patients, five with grade 3/4 toxicity).Conclusion9-NC has modest activity in delaying progression in patients with unresectable or metastatic chordoma. 9-NC is associated with moderate toxicity and shows little benefit in patients with advanced STS and GIST.
Publisher
American Society of Clinical Oncology (ASCO)
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