Skip to content

Stimulating Percutaneous Array for Urinary Reflex Control (SPARC)

A Pilot Sham-Controlled Study to Evaluate the Safety and Efficacy of a Wearable Microneedle Percutaneous Neuromodulation System for Idiopathic Overactive Bladder and Urinary Incontinence

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07149103
Enrollment
40
Registered
2025-08-29
Start date
2025-08-29
Completion date
2026-01-30
Last updated
2025-08-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Over Active Bladder

Keywords

Over active bladder, Incontinence, Ideopathic Over active bladder, Percutaneous Tibial Nerve Stimulation (PTNS)

Brief summary

The Confidanz Smart Patch System consists of a Smart Patch containing one transcutaneous gel electrode and one percutaneous microneedle array electrode that sits directly superficial to the posterior tibial nerve. An applicator is used by the patient to deploy the microneedles into the skin. A Capital Stimulation Unit (CSU) is magnetically aligned with the Smart Patch and generates biphasic current wave form to the posterior tibial nerve through the patch. The CSU is connected to a mobile application via Bluetooth, allowing control over the stimulation intensity parameters. Primary Objective: To investigate the safety of the Confidanz Smart Patch System for adults diagnosed with idiopathic overactive bladder. Secondary Objective: To measure the reduction from baseline in average incontinence events (IE) per day at 6- and 12-weeks. Primary Hypothesis: The use of the Confidanz Smart Patch System is safe for use in adults with idiopathic overactive bladder.

Detailed description

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.

Interventions

By wearing the Confidanz Smart Patch, the Tibial Nerve will be stimulated

OTHERPlacebo

No active stimulation will be provided

Sponsors

Australis Scientific PTY LTD
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Willing and able to give informed consent for participation in the investigation 2. Is aged 18 years or older 3. Has been diagnosed with idiopathic overactive bladder (OAB) by a qualified urologist (FRACS) or gynaecologist (FRANZCOG) 4. 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 5. Clinically acceptable laboratory results within 30 days of enrolment Urinalysis: Dipstick (Leukocytes & Nitrites) 6. In the Investigator's opinion, participant is able and willing to comply with all trial requirements 7. Willing to allow their general practitioner and/or other specialists to be aware of their participation in the trial.

Exclusion criteria

1. Presence of urinary tract infection based on a positive dipstick AND positive mid-stream urine (MSU) test within 4 weeks prior to therapy commencement. 2. Female participant who is pregnant, lactating or planning pregnancy during the trial. 3. History of bladder augmentation/cystoplasty 4. Morbid obesity (BMI greater than 35) 5. Poorly controlled diabetes mellitus (HbA1c \> 7.5% (based on diabetic study) 6. Intravesical injection of botulinum toxin within 12 months of study enrolment. 7. Patients who have failed intravesical Botox therapy. 8. Patients with neurogenic lower urinary tract dysfunction or relevant neurological disease 9. A treatment within the previous year of neuromodulation (TNS or sacral neuromodulation) for OAB. 10. Participant with pacemakers or implantable defibrillators, or other active implantable devices (e.g., spinal cord stimulators, bladder neurostimulators) 11. Participant who have participated in another research trial involving an investigational product in the past 12 weeks. 12. Participant on medication therapy for OAB who have not gone through a two-week washout period during which time medications were discontinued. 13. Participant is in the investigators opinion, unable to comply with trial requirements. 14. Participant has inflamed, infected or otherwise compromised skin in the treatment area. 15. Participant with a bleeding disorder e.g., haemophilia

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs)Up to 12 weeksNumber of AEs and SAEs occurring throughout the study

Secondary

MeasureTime frameDescription
Change from baseline in average voids per day at 6- and 12-weeks.Up to 12 weeksTo measure and compare average incontinence events (IE) per day at 6- and 12-weeks from baseline

Countries

Australia

Contacts

Primary ContactNigel D'Silva
nigel.dsilva@australisscientific.com+61466411877

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026