Conditions: Cervical Dystonia
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 134
Healthy volunteers: no

Brief summary:
The purpose of the protocol is to evaluate the efficacy and safety of Dysport® using 2 mL dilution compared with placebo for the treatment of Cervical Dystonia.

Detailed description:

Arms:
arm 1: Dysport® (intramuscular injection), between 250 and 500 units (U)/vial using 2mL dilution, 1 cycle only arm 2: Placebo, up to 2mL

Interventions: intervention 1: Botulinum toxin type A intervention 2: Placebo
Intervention descriptions: intervention 1: Intramuscular injection, between 250 and 500 units (U)/vial using 2mL dilution, 1 cycle only intervention 2: Up to 2mL

Protocol document: