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Recruiting Phase 4 NCT04305743

NCT04305743 Post-procedural Pain Associated With 5 Versus 20 Intravesical Injections of Onabotulinumtoxin A

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Clinical Trial Summary
NCT ID NCT04305743
Status Recruiting
Phase Phase 4
Sponsor University of South Florida
Condition Urinary Bladder, Overactive
Study Type INTERVENTIONAL
Enrollment 60 participants
Start Date 2019-10-09
Primary Completion 2021-01-01

Eligibility & Interventions

Sex Female only
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
OnabotulinumtoxinA 100 UNT

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 4 studies follow an already-approved treatment in real-world conditions to monitor long-term safety and effectiveness.

This trial targets 60 participants in total. It began in 2019-10-09 with a primary completion date of 2021-01-01.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

Currently, in clinical practice there has been no standardization in the number of injections a single dose of intradetrusor onabotulinumtoxin A is administered in. Given the increasing use of this treatment modality, the aim of this study is to compare outcomes for patients given a 100 unit dose of onabotulinumtoxin A split into 5 as compared to 20 injections for the treatment of overactive bladder or urgency urinary incontinence refractory to medical treatment.

Eligibility Criteria

Inclusion Criteria: * Women \>=18 years of age with diagnosis of urinary urgency, urinary frequency, urgency urinary incontinence, overactive bladder. * Procedure scheduled in either the outpatient clinic or the operating room to be performed without use of sedation, general, or neuraxial anesthesia. Exclusion Criteria: * Male gender. * Women \<18 years of age. * Non-English speaking. * Pregnancy (patient will self-report pregnancy). * Participant has symptoms of overactive bladder due to any known neurological reason (e.g. spinal cord injury, multiple sclerosis, cerebrovascular accident, Alzheimer's disease, Parkinson's disease, etc.) * Participant uses clean intermittent catheterization or indwelling catheter to manage urinary incontinence. * Participant has a history or current diagnosis of bladder cancer or other urothelial malignancy. * Participant has a known allergy or sensitivity to any botulinum toxin preparation. * Participant has any medical condition that may put her at increased risk with exposure to onabotulinumtoxin A, including diagnosed myasthenia gravis, Eaton-Lambert syndrome, or amyotrophic lateral sclerosis. * Participant is scheduled for administration of onabotulinumtoxin A with use of sedation, general, or neuraxial anesthesia.

Contact & Investigator

Central Contact

Eric S Chang, MD

✉ ericchang@usf.edu

📞 813-259-8500

Principal Investigator

Eric S Chang, MD

PRINCIPAL INVESTIGATOR

University of South Florida

Frequently Asked Questions

Who can join the NCT04305743 clinical trial?

This trial is open to female participants only, aged 18 Years or older, studying Urinary Bladder, Overactive. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT04305743 trial and what does that mean for participants?

Phase 4 studies are conducted after a treatment has been approved. They monitor long-term safety and real-world effectiveness in a broader patient population.

Is NCT04305743 currently recruiting?

Yes, NCT04305743 is actively recruiting participants. Contact the research team at ericchang@usf.edu for enrollment information.

Where is the NCT04305743 trial being conducted?

This trial is being conducted at Washington D.C., United States, Tampa, United States.

Who is sponsoring the NCT04305743 clinical trial?

NCT04305743 is sponsored by University of South Florida. The principal investigator is Eric S Chang, MD at University of South Florida. The trial plans to enroll 60 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology