Abstract
e17089 Background: Cabozantinib is approved in the UK in treatment-naïve adults with intermediate or poor risk aRCC or following prior VEGF-targeted therapy. Here we describe treatment pathways and clinical outcomes of patients with aRCC who received cabozantinib early and later in the UK managed access program (MAP) as disease severity may differ in these patient populations. Methods: A non-interventional retrospective chart review study was carried out in six specialist centres in the UK to describe early clinical experience with cabozantinib in patients with aRCC (CERES, NCT03696407). Progression-free survival (PFS) and overall survival (OS) were calculated from cabozantinib initiation using the Kaplan-Meier method. Patients were grouped into those who initiated cabozantinib early (Aug 2016-Feb 2017) or late (Mar-Aug 2017) in the MAP. Results: Overall 100 patients were eligible; median (95%CI) PFS was 6.01 (5.16; 7.85) months and median OS was 10.84 (7.92; 16.85) months. Patients in the early MAP group received a mean (SD) of 2.2 (1.4) lines of prior therapy, most commonly sunitinib (n = 32, 56.1%) and pazopanib (n = 30, 52.6%). Patients in the late MAP group received a mean of 1.9 (SD 1.2) lines of prior therapy, most commonly pazopanib (n = 23, 53.5%) and sunitinib (n = 19, 44.2%). At least one post-cabozantinib therapy was prescribed in 44.6% (25/57) and 27.9% (12/43) of patients in the early and late groups, respectively, most commonly nivolumab (both groups). See table for characteristics and outcomes by MAP group. Conclusions: Cabozantinib was effective in this small, real-world study of patients receiving treatment as part of a MAP. The results are supportive of the data seen in the registrational study, METEOR. Patients enrolled early in the MAP were possibly more heavily pre-treated but overall outcomes were similar to those who enrolled later. [Table: see text]
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