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The effect of the drug resiniferatoxin on the bladder as a treatment for cases of incontinence previously unresponsive to treatment.

25-90 year old females with urodynamically proven refractory idiopathic detrusor activity given resiniferatoxin to assess the benefits of resiniferatoxin treatment on frequency volume chart, quality of life, leakage pad tests.

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12612000598886
Acronym
RTX for Refractory IDO
Enrollment
50
Registered
2012-06-04
Start date
2004-05-30
Completion date
Unknown
Last updated
2020-01-13

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

Conditions

None listed

Brief summary

This project involves administering a solution into the bladder to treat incontinence, which ahs already been used in eight countries overseas. Urge incontinence (detrusor overactivity (DO)) is treated with anticholinergic drugs which are generally palliative, not curative. Bladder instillation of vanilloids i.e. capsaicin and resiniferatoxin (RTX) for DO has shown symptomatic improvement for up to 3 months. We wish to offer this therapy for urge incontinent women who have not responded to two anticholinergic drugs. RTX will be instilled into the bladder via a urinary catheter. Women will be assessed at 1 and 3 months by routine measures. This novel project will study which types of DO respond best to the treatment

Interventions

10 mL of 500nM (50nM) resiniferatoxin stock was diluted with 90mL of sterile saline and stored in dark,sterile conditions at 20 degrees C (Final concentration: 0.00314mg/100mL). This was instilled in the bladder for 30 minutes and drained via a urinary catheter. This intervention was administered to each participant on one occasion only

Sponsors

Pelvic Floor Unit Research Fund (St George Hospital)
Lead SponsorHospital

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
25 Years to 90 Years
Healthy volunteers
No

Inclusion criteria

Urodynamically proven idiopathic detrusor overactivity refractory to at least two anticholinergic treatments for 12 months

Exclusion criteria

Pure stress incontinence, current bacterial cystitis, neurological disease

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026