Stimulating Percutaneous Array for Urinary Reflex Control (SPARC)

The Clinical Trial is a Randomised, single-blinded, sham-controlled study designed to assess the safety and performance of the Confidanz Smart Patch System for home-based intermittent use under clinical supervision, in patients with overactive bladder systems. Participant screening will occur at least 3-days prior to the baseline visit in the clinic. Participants who meet all the inclusion criteria and none of the exclusion criteria will be enrolled. Up to 40 participants will be enrolled in this clinical investigation. A computer-generated sequence will be created using a block randomisation method, participants will be randomised in a 3:1 fashion.

At the baseline visit, the investigator or study staff member will train the participant on the correct use of the device. At-home weekly treatments will be conducted for 12 weeks, here the patient will apply the Smart Patch and initiate a 30-minute stimulation session through the mobile application. The treatment arm will receive stimulation, whereas the control arm will not. Symptom tracking and adverse events will be recorded.

A maximum total of 12 weekly treatments will be conducted. At baseline, 6 and 12 weeks, a 3-day bladder diary, International Consultation on Incontinence Questionnaire (ICIQ), the Overactive Bladder Symptom Score (OABSS), Short Form Survey SF-12, Patient Global Impression of Change (PGI-C), VAS pain scale, and participant decision-making and feedback questionnaire will be administered in the clinic.

Inclusion criteria

• Willing and able to give informed consent for participation in the investigation
• Is aged 18 years or older
• Has been diagnosed with idiopathic overactive bladder (OAB) by a qualified urologist (FRACS) or gynaecologist (FRANZCOG)
• Eligibility is based on meeting the criteria for an OAB, defined by the International Continence Society as an average urinary frequency: ≥8 voids and ≥1 urgency episode (with or without incontinence) per 24 hours
• Clinically acceptable laboratory results within 30 days of enrolment Urinalysis: Dipstick (Leukocytes & Nitrites)
• In the Investigator's opinion, participant is able and willing to comply with all trial requirements
• Willing to allow their general practitioner and/or other specialists to be aware of their participation in the trial.

Exclusion criteria

• Presence of urinary tract infection based on a positive dipstick AND positive mid-stream urine (MSU) test within 4 weeks prior to therapy commencement.
• Female participant who is pregnant, lactating or planning pregnancy during the trial.
• History of bladder augmentation/cystoplasty
• Morbid obesity (BMI greater than 35)
• Poorly controlled diabetes mellitus (HbA1c > 7.5% (based on diabetic study)
• Intravesical injection of botulinum toxin within 12 months of study enrolment.
• Patients who have failed intravesical Botox therapy.
• Patients with neurogenic lower urinary tract dysfunction or relevant neurological disease
• A treatment within the previous year of neuromodulation (TNS or sacral neuromodulation) for OAB.
• Participant with pacemakers or implantable defibrillators, or other active implantable devices (e.g., spinal cord stimulators, bladder neurostimulators)
• Participant who have participated in another research trial involving an investigational product in the past 12 weeks.
• Participant on medication therapy for OAB who have not gone through a two-week washout period during which time medications were discontinued.
• Participant is in the investigators opinion, unable to comply with trial requirements.
• Participant has inflamed, infected or otherwise compromised skin in the treatment area.
• Participant with a bleeding disorder e.g., haemophilia