A phase 2, open-label, dose-escalating study to evaluate the safety and preliminary efficacy of daxibotulinumtoxina for injection (RT002) in isolated cervical dystonia. (25th December 2016) - Comella, Cynthia L.; Brashear, Allison; Jankovic, Joseph; Patel, Atul T.; Truong, Daniel D.; Chung, Carol Y.; Rubio, Roman G.