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Clinical Trial
. 2019 Mar/Apr;25(2):113-119.
doi: 10.1097/SPV.0000000000000681.

A 12-Month Clinical Durability of Effectiveness and Safety Evaluation of a Vaginal Bowel Control System for the Nonsurgical Treatment of Fecal Incontinence

Holly E Richter, Gena Dunivan  1 , Heidi W Brown  2 , Uduak Andy  3 , Keisha Y Dyer  4 , Charles Rardin  5 , Tristi Muir  6 , Shane McNevin  7 , Ian Paquette  8 , Robert E Gutman  9 , Lieschen Quiroz  10 , Jennifer Wu  11
Affiliations
Clinical Trial

A 12-Month Clinical Durability of Effectiveness and Safety Evaluation of a Vaginal Bowel Control System for the Nonsurgical Treatment of Fecal Incontinence

Holly E Richter et al. Female Pelvic Med Reconstr Surg. 2019 Mar/Apr.

Abstract

Objective: The aim of this study was to characterize clinical success, impact on quality of life, and durability up to 1 year in women with fecal incontinence (FI) responsive to an initial test period with a trial vaginal bowel control system.

Methods: This was a prospective open-label study in subjects with FI and successfully fit who underwent an initial 2-week trial period. Those achieving 50% or greater reduction in FI episodes were provided the long-term system. Primary outcome was success at 3 months defined as 50% or greater reduction in baseline FI episodes, also assessed at 6 and 12 months. Secondary outcomes included symptom impact measured with Fecal Incontinence Quality of Life scale, symptom severity by the St Mark's (Vaizey) questionnaire, Patient Global Impression of Improvement, and satisfaction. Adverse events were collected. Primary analysis was intention to treat (ITT).

Results: Seventy-three subjects with baseline mean of 14.1 ± 12.15 FI episodes over 2 weeks entered the treatment period. Success rate at 3 months was 72.6% (53/73, P < 0.0001); per-protocol, 84.1% (53/63, P < 0.0001). Significant improvement in all Fecal Incontinence Quality of Life subscales and St Mark's questionnaire meeting minimally important differences was noted. Satisfaction was 91.7%, 89.7%, and 94.4% at 3, 6, and 12 months, respectively; 77.4%, 77.6%, and 79.6% were very much/much better on the Patient Global Impression of Improvement at 3, 6, and 12 months, respectively. Most common adverse event was vaginal wall injury, with most adverse events (90/134, 67%) occurring during fitting period.

Conclusions: In women with successful fitting and initial treatment response, durable efficacy was seen at 3, 6, and 12 months by objective and subjective measures, with favorable safety.

Trial registration: ClinicalTrials.gov NCT02428595.

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Figures

FIGURE 1.
FIGURE 1.
Patient flow.
FIGURE 2.
FIGURE 2.
Percentage of VBC system users with at least 50% reduction in number of FI episodes at 3, 6, and 12 months of use in ITT and PP populations.
FIGURE 3.
FIGURE 3.
Fecal incontinence severity, frequency, and quality of life in PP population over time.
FIGURE 4.
FIGURE 4.
Patient Global Impression of Improvement in PP population.
See this image and copyright information in PMC

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