Journal
CURRENT MEDICAL RESEARCH AND OPINION
Volume 24, Issue 6, Pages 1583-1591Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1185/03007990802081766
Keywords
activity impairment; overactive bladder; resource utilization; solifenacin; tolterodine; work productivity
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Objective: Assess changes in resource utilization, work and activity impairment, and health utility among OAB patients continuing to have urgency symptoms with tolterodine ER 4 mg and willing to try solifenacin 5/10 mg. Research design and methods: This was an open-label, non-comparative, flexible-dosing, multicenter, 12-week study assessing the efficacy and safety of solifenacin 5/10 mg/day. Patients receiving tolterodine ER 4 mg/day for >= 4 weeks but continuing to experience residual urgency symptoms (>= 3 urgency episodes/24 h) were enrolled into the study. After a 14-day washout, patients began treatment with solifenacin 5 mg/day with dosing adjustments allowed at Weeks 4 and 8. Main outcome measures: Outcomes were assessed using the Work Productivity and Activity Impairment Questionnaire - Specific Health Problem (WPAI-SHP), Health Utilities Index (HUI), and a resource utilization questionnaire administered at Pre-Washout and Week 12. Results: Patients (n = 440) reported significantly fewer physician office visits (p < 0.0001), UTIs (p < 0.0001), and pads/diapers (p=0.0009) during the study period while receiving solifenacin 5/10 mg/day, compared with the Pre-Washout period when receiving tolterodine ER 4 mg/day. After 12 weeks of treatment with solifenacin 5/10 mg/day, patients reported a reduction in work time missed (p = 0.0017), less impairment while working (p < 0.0001), less overall work impairment (p < 0.0001) and a reduction in activity impairment (p < 0.0001) compared to Pre-Washout. There was no significant difference in health utility scores. Treatment-emergent adverse events were mostly anticholinergic in nature, and were mild to moderate in severity. Conclusion: Overall, solifenacin 5/10mg/day improved work productivity, activity participation, and reduced medical care use in OAB patients who continued to have urgency symptoms with tolterodine ER 4 mg/day and wished to switch to solifenacin 5/10 mg. This was an open-label, non-comparative study; therefore, further research is needed to confirm these results.
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