Conditions: Spasmodic Torticollis
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 48
Healthy volunteers: no

Brief summary:
To evaluate inter-ethnic similarity in pharmacodynamics between Japanese and Caucasian healthy adult male subjects by comparing electrophysiological reactions after administering E2014 to extensor digitorum brevis muscle (EDB).

Detailed description:

Arms:
arm 1: None arm 2: None

Interventions: intervention 1: E2014 (Botulinum toxin type B) intervention 2: E2014 (Botulinum toxin type B) Placebo
Intervention descriptions: intervention 1: A single-dose injection solution containing 20 units (U), 100 U, or 500 U/ 0.2 milliliters (mL) of E2014 was administered to extensor digitorum brevis (EDB) muscle in the left lower limb to Japanese and Caucasian participants. Duration of treatment lasted for 12 weeks: from Day -1 to Week 12. Participants were hospitalized from a day before study treatment to Day 8 for 9 nights and 10 days, and visited at the medical institution on Days 10 and 14, and Weeks 4 and 12. intervention 2: A single-dose injection solution of E2014 Placebo was administered to extensor digitorum brevis (EDB) muscle in the left lower limb to Japanese and Caucasian participants. Duration of treatment lasted for 12 weeks: from Day -1 to Week 12. Participants were hospitalized from a day before study treatment to Day 8 for 9 nights and 10 days, and visited at the medical institution on Days 10 and 14, and Weeks 4 and 12.

Protocol document: