Proportion of NRS Responders: Subject's overall improvement in VMS from Baseline was assessed using the Numerical Rating Scale (NRS)
The Clinical Global Impression - Severity scale (CGI-S) is a 7-point scale that requires the clinician to rate the severity of the patient's illness at the time of assessment, relative to the clinician's past experience with patients who have the same diagnosis. Considering total clinical experience, a patient is assessed on severity of mental illness at the time of rating 1, normal, not at all ill; 2, borderline mentally ill; 3, mildly ill; 4, moderately ill; 5, markedly ill; 6, severely ill; or 7, extremely ill.
Responders: Subjects Achieving a Score of "Very Much Improved" Or "Much Improved" Or "Minimally Improved".
Non Responders: Subjects with a Score of "No Change" Or "Minimally Worse" Or "Much Worse" Or "Very Much Worse".