A Prospective Evaluation of a Prescription Digital Therapeutic for Treatment of Overactive Bladder in Women: The RiSolve Trial

Summary

The RiSolve Trial is a prospective, single-arm, post-market clinical investigation designed to evaluate the effectiveness, usability, and safety of a prescription digital therapeutic (PDTx) for women suffering from overactive bladder (OAB). The study is sponsored by the University of Galway and led by Professor Andrew W. Murphy. It is scheduled to begin in August 2025 and conclude in March 2026, and will be conducted through the Primary Care Clinical Trials Network at the University of Galway. Sixty adult women based in the Republic of Ireland will be recruited to take part. Eligible participants must be at least eighteen years old, fluent in English, own a smartphone, and report bothersome OAB or urgency incontinence symptoms. Women who are pregnant, receiving certain bladder-related treatments, or using specific medications or devices will be excluded.

Overactive bladder is a chronic condition defined by urgency, urinary frequency, nocturia, and often urgency incontinence. It is highly prevalent among women and significantly impacts quality of life, with effects ranging from sleep disruption to reduced occupational performance and heightened risks of anxiety and depression. Standard treatment guidelines recommend a tiered approach, beginning with behavioural therapy, followed by pharmacological options, and finally invasive procedures such as Botox injections or neuromodulation. Behavioural therapy, although considered the gold standard, is often difficult for patients to access due to limited provider availability, cost, and stigma. RiSolve was developed to overcome these barriers by offering a comprehensive, digital, prescription-only therapeutic program.

The investigational device, the RiSolve App (REF: PDTxA001), is a CE-marked Class I medical device developed in accordance with the EU Medical Device Regulation (MDR 2017/745). It delivers an eight-week structured program combining behavioural therapy with a novel digital cognitive behavioural therapy component. Content includes bladder training, pelvic floor exercises, urge suppression strategies, education on bladder health and diet, and general wellbeing modules covering sleep, stress, and exercise. The app also provides interactive tools such as quizzes, bladder diaries, and personalised feedback. Patients complete clinically validated questionnaires and receive auto-generated progress reports, which are also shared with healthcare providers. In its design, RiSolve builds on earlier pilot work with a prior app developed at the University of Galway, which demonstrated improvements in OAB symptoms and quality of life.

The primary aim of the study is to assess usability of the RiSolve App, measured using the user version of the Mobile Application Rating Scale (uMARS). Secondary objectives include evaluating symptom improvement using the Overactive Bladder Questionnaire short-form Symptom Severity scale (OAB-q SF SS) and assessing quality of life changes with the OAB-q SF HQoL scale. Safety outcomes will focus on identifying any device-related serious adverse events.

Conditions

• Overactive Bladder (OAB)
• Over Active Bladder

Interventions

DEVICE

RiSolve

RiSolve is a Class I device in accordance with Rule 11 of Annex VIII of EU Medical Device Regulation (MDR) 2017/745. The RiSolve App is a smartphone application that users can download following a diagnosis of OAB by a healthcare provider, and following prescription of the RiSolve App. RiSolve consists of an 8-week program including activities to set baselines and assess progress, treatment modules, and modules to enhance engagement. As part of setting baselines and assessing progress, participants complete a series of clinically validated questionnaires. This data is presented to users to promote self-monitoring of behaviours and a deeper understanding of their symptoms. A patient report is auto-generated at the end of treatment. This is sent to the patient and contains their in-app self-generated data, their questionnaire results and their bladder diary data (see Appendix 1: RiSolve Patient Report). This information is also provided to the prescribing healthcare provider as an object

Sponsors & Collaborators

• Enterprise Ireland

  collaborator OTHER_GOV

• University of Galway

  lead OTHER

Study Design

Allocation

NA

Purpose

TREATMENT

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

18 Years

Sex

FEMALE

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-09-29

Primary Completion

2025-12-31

Completion

2025-12-31