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  • Phase II trial of triple ty...
    Norden, Andrew D.; Schiff, David; Ahluwalia, Manmeet S.; Lesser, Glenn J.; Nayak, Lakshmi; Lee, Eudocia Q.; Rinne, Mikael L.; Muzikansky, Alona; Dietrich, Jorg; Purow, Benjamin; Doherty, Lisa M.; LaFrankie, Debra C.; Pulverenti, Julee R.; Rifenburg, Jennifer A.; Ruland, Sandra F.; Smith, Katrina H.; Gaffey, Sarah C.; McCluskey, Christine; Ligon, Keith L.; Reardon, David A.; Wen, Patrick Y.

    Journal of neuro-oncology, 01/2015, Letnik: 121, Številka: 2
    Journal Article

    Bevacizumab is FDA-approved for patients with recurrent GBM. However, the median duration of response is only 4 months. Potential mechanisms of resistance include upregulated FGF signaling and increased PDGF-mediated pericyte coverage. Nintedanib is an oral, small-molecule tyrosine kinase inhibitor of PDGFR α/β, FGFR 1-3, and VEGFR 1-3 that may overcome resistance to anti-VEGF therapy. This was a two-stage phase II trial in adults with first or second recurrence of GBM, stratified by prior bevacizumab therapy (ClinicalTrials.gov number NCT01380782; 1199.94). The primary endpoint was PFS6 in the bevacizumab-naive arm (Arm A) and PFS3 in the post-bevacizumab arm (Arm B). Up to 10 anaplastic glioma (AG) patients were accrued to each arm in exploratory cohorts. Twenty-two patients enrolled in Arm A and 14 in Arm B. Arm A included 12 GBMs (55 %), 13 patients with one prior regimen (59 %), and median age 54 years (range 28–75). Arm B included 10 GBMs (71 %), one patient with one prior regimen (7 %), and median age 52 years (range 32–70). Median KPS overall was 90 (range 60–100). There were no responses. In Arm A (GBM only), PFS6 was 0 %, median PFS 28 days (95 % CI 27–83), and median OS 6.9 months (3.7–8.1). In Arm B (GBM only), PFS3 was 0 %, median PFS 28 days (22–28), and median OS 2.6 months (1.0–6.9). Among AG patients in each arm, PFS6 was 0 %. Treatment was well tolerated. In conclusion, nintedanib is not active against recurrent high-grade glioma, regardless of prior bevacizumab therapy.