Stimulating Percutaneous Array for Urinary Reflex Control (SPARC)

Australis Scientific PTY LTD

Status: Not yet enrolling

Conditions: Over Active Bladder

Treatments: Other: Percutaneous Tibial Nerve Stimulation; Other: Placebo

Study type: Interventional

Funder types: Industry

Identifiers

NCT07149103

CP-001

Details and patient eligibility

About

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.

Full 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.

Enrollment: 40 estimated patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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40 participants in 2 patient groups, including a placebo group

Treatment Arm

Experimental group

Description:

The treatment arm will undergo the experimental treatment

Treatment:

Other: Percutaneous Tibial Nerve Stimulation

SHAM ARM

Placebo Comparator group

Description:

The sham arm will undergo the same procedure as the treatment group but the therapy will not be switched on

Treatment:

Other: Placebo