Overview Safety and Toxicity Study of Sorafenib in Patients With Kidney Cancer Status: Completed Trial end date: 2008-10-01 Target enrollment: Participant gender: Summary The purpose of this study is to determine the safety and toxicity levels of Dose Escalated Sorafenib in the treatment of patients with renal cancer. Phase: Phase 2 Details Lead Sponsor: The Methodist Hospital Research InstituteThe Methodist Hospital SystemCollaborators: AmgenBayerOnyx PharmaceuticalsTreatments: NiacinamideSorafenib