Overview Long-term Extension From RCC Phase II (11515) Status: Completed Trial end date: 2008-07-01 Target enrollment: Participant gender: Summary Extension to study 11515 (NCT00661375) which was a multicenter study of sorafenib in patients with renal cell carcinoma (RCC). Phase: Phase 2 Details Lead Sponsor: BayerTreatments: NiacinamideSorafenib