Table 2

Efficacy outcomes

Visit 2Visit 3
Percentage change in TWSTRS score, mean ± SD(n=374)(n=380)
 Severity subscore–40.8±25.1–16.5±22.3
 Disability subscore–36.3±49.8–6.6±90.2
 Pain subscore–35.8±49.9–7.6±72.6
 Total score–39.6±26.6–15.4±27.0
Tremor(n=375)(n=380)
 Subjects with improvement in tremor* with treatment, n (%)66/181(36.5)41/178* (23.0)
CDIP-58 subscales scores, mean ± SD(n=93)
 Head and neck symptoms26.1±21.9
 Pain and discomfort20.5±23.5
 Upper limb activities16.3±19.9
 Walking15.3±21.5
 Sleep12.3±20.0
 Annoyance15.6±23.9
 Mood13.9±20.5
 Psychosocial functioning19.2±23.6
  • * Improvement defined by presence of tremor at baseline and absence of tremor at subsequent visits.

  • Subjects with data available at this timepoint and with tremor present at baseline.

  • Questionnaire in English, thus completed by English-speaking patients only.