Journal
INVESTIGATIONAL NEW DRUGS
Volume 31, Issue 6, Pages 1602-1608Publisher
SPRINGER
DOI: 10.1007/s10637-013-0028-7
Keywords
Everolimus; mTOR inhibitor; Sarcoma
Categories
Funding
- Norvartis Pharmaceuticals
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This multicenter, phase II trial evaluated the efficacy and safety of everolimus, an mTOR inhibitor, in patients with metastatic or recurrent bone and soft-tissue sarcoma after the failure of anthracycline- and ifosfamide-containing regimens. Everolimus was administered orally as 10 mg once daily. The primary endpoint was the progression-free rate (PFR) at 16 weeks, assessed by computed tomography scan according to RECIST v1.0. Between July 2010 and May 2011, 41 patients were enrolled in this study. Among them, 83 % received two or more regimens of chemotherapy prior to study entry. In 38 patients who the primary endpoint was evaluable, 11 patients reached 16 weeks progression-free (one with partial response and 10 with stable disease), indicating a PFR at 16 weeks of 27 % (95 % confidence interval [CI], 16 -aEuro parts per thousand 42 %). The PFR at 16 weeks was highest in patients with angiosarcoma (2 of 3, 67 %). With a median follow-up of 10.9 months (range, 2.3-23.9 months) in living patients, the median progression-free survival was 1.9 months (95 % CI, 1.3-2.4 months) and the median overall survival was 5.8 months (95 % CI, 3.6-8.0 months). Most adverse events were generally mild and tolerable. Grade 3/4 toxicities included hyperglycemia (15 %), stomatitis (7 %), pain (5 %), and asthenia (5 %). Everolimus shows modest antitumor activity with manageable toxicities in heavily pretreated patients with bone and soft-tissue sarcoma.
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