A Multicenter Study Evaluating the FREquency of Use and Efficacy of a Novel Closed-Loop Wearable Tibial Neuromodulation System for Overactive Bladder and Urgency Urinary Incontinence (FREEOAB).

OBJECTIVE

To evaluate the effectiveness and safety of a novel wearable neuromodulation system incorporating embedded electromyographic evaluation, representing the first closed-loop wearable therapy for bladder control.

METHODS

This 12-week, multicenter, open-label, single-arm study of subjects with overactive bladder assessed response of bladder diary parameters and quality of life (QOL) metrics. Subjects used the transcutaneous tibial neuromodulation system, either once or three times weekly, with evaluations at weeks 1, 4, 8, and 12. Enrolled subjects (N = 96) were assessed for changes in urinary frequency, urgency, and urgency urinary incontinence episodes, and QOL changes using various questionnaires.

RESULTS

In the intent-to-treat population (N = 96, mean age 60.8 ± 13.0years, 88.5% female), significant reductions in 3-day diary parameters were observed for daily voids, incontinence, and urgency episodes at 12weeks. QOL improvements exceeded the minimal clinically important difference for all QOL questionnaires. Long-term results remained robust at 12months. Device-related adverse events were mild and there were no device-related serious adverse events. Mean therapy compliance at 12weeks was 88.5%. High satisfaction rates were reported for the device overall.

CONCLUSION

The Avation device demonstrates promising efficacy in treating adults with overactive bladder and urge urinary incontinence. At 12weeks, both diary parameters and QOL indicators showed significant improvement and remained robust at 12months. The device had a favorable safety profile with high compliance and patient satisfaction. This novel, closed-loop wearable tibial neuromodulation system represents a significant advancement in bladder control therapy, offering a noninvasive, patient-centered alternative with improved accessibility and ease of use.