PurTox (Botulinum Toxin Type A) for the Treatment of Adult Onset Spasmodic Torticollis/Cervical Dystonia

Inclusion Criteria: * Diagnosis of torticollis with noticeable symptoms for at least 6 months * Total TWSTRS score greater or equal to 20, TWSTRS severity score greater than or equal to 10 and TWSTRS Disability score greater than or equal to 3 (must meet all 3 criteria) Exclusion Criteria: * Diagnosis of isolated anterocollis * Concurrent myopathic disease, myotonic dystrophy (or other form of muscular dystrophy), myasthenia gravis * Currently receiving aminoglycoside antibiotic therapy, curare-like drugs, quinidine, succinylcholine, polymixins, anticholinesterases, magnesium sulfate, or lincosamides * Any illness that is considered by the Investigator to make the subject an inappropriate candidate * Cervical spine injury within 18 months or head and neck surgery within 6 months prior to screening * Pre-existing dysphagia * History of active autoimmune disease * Exposure to botulinum toxin based pharmaceutical within 3 months prior to screening * History of primary non-response or secondary resistance with prior exposure to botulinum based pharmaceuticals * History of chemotherapy/radiation for malignant disease within 24 months * Any investigational drug/device during the 30 days prior to screening