Comparison Between Dysport and Prosigne in the Treatment of Cervical Dystonia.

Unlabelled: Cervical dystonia is the most frequent type of primary focal dystonia and treatment with botulinum toxin (BTX) is currently the criterion standard.

Objective: In this study, we compared the safety and efficacy of the following 2 formulations of BTXs available in Brazil: abobotulinumtoxin A (Dysport) and Lanzhou BTX type A (Prosigne), during a follow-up of 13 months.

Methods: We conducted a prospective, randomized, double blind trial with 1 group being treated with Dysport and the other with Prosigne.