Patient-reported most bothersome symptoms in OAB: post hoc analysis of data from a large, open-label trial of solifenacin

In overactive bladder (OAB), subjects' most bothersome symptom (MBS) may influence treatment-related outcomes. We evaluated effects of solifenacin on patient-reported outcomes (PROs) in subjects stratified by their MBS at baseline. In a 12-week, open-label study, the effects of solifenacin on PROs were assessed using visual analog scales (VAS), the OAB questionnaire (OAB-q), and the patient perception of bladder condition (PPBC). Statistics were descriptive. Subjects' baseline MBS were frequency (27%), urge urinary incontinence (UUI; 26%), urgency (23%), and nocturia (15%); VAS scores were worse for MBS. By study end, participants' MBS showed the largest solifenacin-related VAS improvements. The UUI subgroup showed the largest VAS, OAB-q, and PPBC improvements. Solifenacin improved overall and symptom-specific bother, HRQL, and perception of their bladder condition in MBS subgroups, with larger improvements in subjects' MBS. Those with UUI as MBS showed greater improvement in most outcomes.