Insulinoma Clinical Trial
Official title:
Phase II Study of Dovitinib (TKI-258) in Progressive, Well-Differentiated Pancreatic Neuroendocrine Tumors With and Without Prior VEGF-Inhibitor Therapy
This phase II trial studies how well dovitinib lactate works in treating patients with pancreatic neuroendocrine tumors. Dovitinib lactate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.
PRIMARY OBJECTIVES:
I. To evaluate the efficacy of dovitinib (dovitinib lactate) in patients with progressive
well-differentiated neuroendocrine tumors of the pancreas (PNETs) in reference to 6-month
progression free survival (PFS) historical-controlled patients and in two cohorts defined by
prior vascular endothelial growth factor (VEGF)-inhibitor therapy (Cohort 1 - no prior VEGF,
Cohort 2 - prior VEGF).
SECONDARY OBJECTIVES:
I. To determine the safety of dovitinib in patients with progressive well-differentiated
PNETs.
II. To evaluate time to treatment failure, time to progression, and overall survival.
III. To evaluate radiographic and biochemical response rates.
TERTIARY OBJECTIVES:
I. To assess the pharmacodynamic effect of dovitinib on plasma biomarkers by measuring
concentrations of circulating growth factors and soluble receptors (e.g. basic fibroblast
growth factor [bFGF], VEGF, placental growth factor [PLGF], soluble VEGF receptor 1 (sVEGFR1)
and 2, collagen IV, fibroblast growth factor 23 [FGF23]).
II. Archival tissue collected from patients prior to registration will be banked to later
analyze baseline expression of potential biomarkers (e.g., bFGF, FGFR).
OUTLINE:
Patients receive dovitinib lactate orally (PO) on days 1-5, 8-12, 15-19, and 22-26. Courses
repeat every 28 days in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up every 2 months for 6 months,
every 3 months for 6 months, and then periodically for 2 years.
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