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Clin Cancer Res. 2013 Mar 1;19(5):1257-68. doi: 10.1158/1078-0432.CCR-12-2885. Epub 2013 Jan 21.

Phase I study of dovitinib (TKI258), an oral FGFR, VEGFR, and PDGFR inhibitor, in advanced or metastatic renal cell carcinoma.

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1
Institut de Cancérologie Gustave Roussy, Villejuif, France. eric.angevin@igr.fr

Abstract

PURPOSE:

Signaling through the fibroblast growth factor (FGF) pathway may account for tumor resistance to antiangiogenic therapies targeting the VEGF pathway. Here, dovitinib (TKI258), a potent oral inhibitor of FGF receptor, VEGF receptor (VEGFR), and platelet-derived growth factor receptor tyrosine kinases, is studied in a dose escalation trial.

EXPERIMENTAL DESIGN:

Patients with advanced or metastatic renal cell carcinoma (RCC) with predominant clear cell histology were treated with oral dovitinib 500 or 600 mg/day (5-days-on/2-days-off schedule).

RESULTS:

Twenty heavily pretreated patients (median 3 prior regimens) were enrolled, with 16, 11, and 12 patients having previously received at least 1: VEGFR inhibitor, mTOR inhibitor, and immunotherapy, respectively. Fifteen and 5 patients were treated in 500- and 600-mg cohorts, respectively. Three patients experienced dose-limiting toxicities: grade 2 bradycardia (500 mg), grade 4 hypertensive crisis (600 mg), and grade 3 asthenia with grade 2 nausea and vomiting (600 mg). The most common adverse events related to dovitinib were nausea (75%), diarrhea (70%), vomiting (70%), and asthenia (50%), the majority of which were mild (grade 1 or 2), with grade 3 events 5% or less (except asthenia, 15%) and only one grade 4 event (hypertensive crisis). Two patients achieved a partial response (500 mg), and 12 patients had stable disease, including 2 patients with long lasting disease stabilizations (>1 year) in the 500-mg cohort.

CONCLUSIONS:

Dovitinib was tolerable and showed antitumor activity at a maximum tolerated dose of 500 mg on a 5-days-on/2-days-off schedule in heavily pretreated RCC patients.

PMID:
23339124
DOI:
10.1158/1078-0432.CCR-12-2885
[Indexed for MEDLINE]
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