This is an otherwise open-label, single-arm study (Part A) that includes a 2-week, double-blind, placebo controlled, randomized drug withdrawal period (Part B) followed by a 3 week blinded maintenance or re-titration (Part A resumed), and then a maintenance period. This study aims to evaluate the safety and efficacy of TEV-50717 tablets in patients with tics associated with TS who have previously completed participation in any of the parent studies (SD-809-C-17 [Phase 1b], TV50717-CNS 30046 [Phase 2/3], or TV50717-CNS 30060 [Phase 3]).
This is an otherwise open-label, single-arm study that includes a 2-week, double-blind, placebo controlled, randomized drug withdrawal period followed by a 3 week blinded maintenance or re-titration, and then a maintenance period. This study aims to evaluate the safety and efficacy of TEV-50717 tablets in patients with tics associated with TS who have previously completed participation in any of the parent studies.