TPS4680 Background: There are currently no treatment options of proven efficacy for patients with advanced papillary RCC. The evaluation of families with inherited forms of RCC has allowed for the identification of genetic alterations associated with papillary RCC. HLRCC is one such familial condition with a propensity for the development of a clinically aggressive variant of papillary RCC characterized by unique histopathologic features. Germline mutations in the gene for the Krebs cycle enzyme fumarate hydratase (FH) are the genetic hallmark of HLRCC. Mutational inactivation of FH leads to von Hippel-Lindau-independent upregulation of hypoxia inducible factors (HIF) and their downstream transcriptional targets such as vascular endothelial growth factor (VEGF) and transforming growth factor-alpha (TGF-α) / epidermal growth factor receptor (EGFR). Upregulation of the HIF pathway may also be important in sporadic papillary RCC, although the prevalence of FH inactivation in these patients is unknown. We propose to evaluate the activity of dual VEGF/EGFR blockade with bevacizumab/erlotinib in patients with HLRCC-associated RCC and sporadic papillary RCC. Methods: This is a single arm phase II study based on an open label Simon two-stage minmax design with a maximum accrual of 20 patients in each of two cohorts: Cohort 1- patients with HLRCC; Cohort 2- patients with sporadic papillary RCC. The primary endpoint is RECIST overall response rate, assessed independently in each cohort. Patients will receive bevacizumab (10mg/Kg IV every 2 weeks) and erlotinib (150mg PO daily). Dose reductions and drug interruptions for toxicity are allowed. Patients will be evaluated for response every 8 weeks. Major eligibility criteria include: advanced RCC associated with HLRCC or sporadic papillary RCC; age >18 years; ECOG 0-2; measurable disease by RECIST; no brain metastases; no more than 2 prior regimens containing a VEGF inhibitor; and no prior therapy with bevacizumab. The prespecified activity goal for the first stage of accrual has been met for both cohorts. NCT01130519.
SNHG12 promotes carcinogenesis of human renal cell cancer via functioning as a competing endogenous RNA and sponging miR‐30a‐3p
