Painful Bladder Syndrome (PBS)Phase 4NCT01157507
Botulinum A Toxin in the Treatment of Patients With Painful Bladder Syndrome
A Phase 4 study testing Intravesical injection of Botulinum A Toxin and Bladder overdistension in people with Painful Bladder Syndrome (PBS), run by University Of Perugia at 1 site in Italy.
Trial summary
Previous clinical observations showed that Botulinum A toxin (BoNT/A) has also an antinociceptive effect and can control the neuropathic pain. In the urologic field, recent in in vitro and in in vivo studies demonstrated that the neurotoxin is able to inhibit the release of several neurotransmitters from the bladder… Read more about this study
- Who is it for?
- Ages 18 to 80 years, women only
- Conditions the study is for
- Painful Bladder Syndrome (PBS)
- What is being tested?
- Intravesical injection of Botulinum A Toxin and Bladder overdistension
- Type of treatment
- Injection or infusion, Surgery or procedure
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 30 participants
- Where
- 1 siteItaly
- Study dates
- Jan 2010to Sep 2011
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 80 years
- Women only
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- refractory bladder pain, the urgency-frequency syndrome, and sterile urine
Who cannot join
- neurological diseases
- pregnancy and concomitant use of aminoglycosides and anticoagulants
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Botulinum A Toxin Intravesical Injections Versus Bladder Overdistension in the Treatment of Patients With Painful Bladder Syndrome: A Prospective Randomized Study
Previous clinical observations showed that Botulinum A toxin (BoNT/A) has also an antinociceptive effect and can control the neuropathic pain.
In the urologic field, recent in in vitro and in in vivo studies demonstrated that the neurotoxin is able to inhibit the release of several neurotransmitters from the bladder afferent fibers and urothelium. These neurotrasmitters as SP, CGRP, ATP, NGF and Prostaglandins are involved in neurogenic inflammation. Thus, it is reasonable to hypothesize that patients with affected by painful bladder syndrome (PBS) could benefit from BoNT/A intravesically administered.
The aim of the study is to investigate the clinical and urodynamic effects of an intravesical treatment with BoNT/A in patients affected by PBS associated with increased urinary frequency, who are refractory to conventional treatments. This treatment will be compared to bladder over distention, which is considered a conventional therapy.
Read the detailed description
Patients with refractory PBS will be prospectively enrolled in the study. Baseline evaluation: Clinical evaluation with visual analog scale (VAS) for pain quantification; QoL assessment with a standardized questionnaire, HAM-A and HAM-D scales for the evaluation of anxiety and depression; voiding diary with the recording of diurnal and nocturnal urinary frequency; urodynamic evaluation, 1 month before commencing the study.
Treatment: According to a computerized randomization, patients will receive: A) one single injection of BoNT/A, 100 U diluted in 10 ml normal saline into the bladder, under cystoscopic guidance, under local anesthesia ; or B) one single bladder overdistension under local anesthesia. C) one single injection of placebo (NACL 0.9 % 10 ml) under local anesthesia.
Follow up: clinical evaluation (VAS, HAM-A and HAM-D, QOL assessment, voiding diary) and urodynamics three months after treatment.
- Conditions
- Painful Bladder Syndrome (PBS)
- Being tested
- Intravesical injection of Botulinum A Toxin, Bladder overdistension, Placebo
- Keywords
- Botulinum A toxin, Painful Bladder Syndrome (PBS), Bladder overdistention
- Medical subject headings
- Cystitis, Interstitial
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intravesical injection of Botulinum A ToxinDrug
Also called Allergan
One treatment, 100 U vials diluted in 10 ml normal saline
Bladder overdistensionProcedure or surgery
Bladder overdistension
PlaceboDrug
Also called One single injection of placebo
One single injection of placebo
| Study group | Role | What they receive |
|---|---|---|
| Botulinum A toxin | Active comparator | Botulinum A toxin intravesical injection. Receives: Drug: Intravesical injection of Botulinum A Toxin |
| Bladder overdistension | Sham comparator | Standard treatment: bladder overdistension Receives: Procedure: Bladder overdistension |
| Placebo | Placebo comparator | Not described Receives: Drug: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Clinical efficacy: reduction in pain and diurnal and nocturnal urinary frequency; improvement in QOL; improvement in HAM-A and HAM-D scores.
Measured: PAIN quantification with 3 months follow up
Secondary outcomes (1)
Urodynamic assessment
Measured: 3 months follow up
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted7 Jul 2010 (estimated)
- Study startJan 2010
- Primary completionSep 2011 (estimated)
- Study completionSep 2011 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Painful Bladder Syndrome (PBS)Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 30 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University Of Perugia
- Sponsor type
- University, hospital or other
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01157507
- Sponsor's protocol ID
- MA-B-PD-P
- Status last verified
- Dec 2009
- First submitted
- 1 Feb 2010
- Last updated
- 20 Apr 2011
- Results posted
- No
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 20 Apr 2011. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Botulinum A Toxin Intravesical Injections Versus Bladder Overdistension in the Treatment of Patients With Painful Bladder Syndrome: A Prospective Randomized Study
- ClinicalTrials.gov ID
- NCT01157507
- Acronym / sponsor ID
- MA-B-PD-P
- Conditions
- Painful Bladder Syndrome (PBS)
- Keywords
- Botulinum A toxin, Painful Bladder Syndrome (PBS), Bladder overdistention
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 30 participants (estimated)
- Lead sponsor
- University Of PerugiaUniversity, hospital or other
- Study start
- Jan 2010
- Primary completion
- Sep 2011 (estimated)
- Study completion
- Sep 2011 (estimated)
- First posted
- 7 Jul 2010 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Previous clinical observations showed that Botulinum A toxin (BoNT/A) has also an antinociceptive effect and can control the neuropathic pain.
In the urologic field, recent in in vitro and in in vivo studies demonstrated that the neurotoxin is able to inhibit the release of several neurotransmitters from the bladder afferent fibers and urothelium. These neurotrasmitters as SP, CGRP, ATP, NGF and Prostaglandins are involved in neurogenic inflammation. Thus, it is reasonable to hypothesize that patients with affected by painful bladder syndrome (PBS) could benefit from BoNT/A intravesically administered.
The aim of the study is to investigate the clinical and urodynamic effects of an intravesical treatment with BoNT/A in patients affected by PBS associated with increased urinary frequency, who are refractory to conventional treatments. This treatment will be compared to bladder over distention, which is considered a conventional therapy.
Detailed description
Patients with refractory PBS will be prospectively enrolled in the study. Baseline evaluation: Clinical evaluation with visual analog scale (VAS) for pain quantification; QoL assessment with a standardized questionnaire, HAM-A and HAM-D scales for the evaluation of anxiety and depression; voiding diary with the recording of diurnal and nocturnal urinary frequency; urodynamic evaluation, 1 month before commencing the study.
Treatment: According to a computerized randomization, patients will receive: A) one single injection of BoNT/A, 100 U diluted in 10 ml normal saline into the bladder, under cystoscopic guidance, under local anesthesia ; or B) one single bladder overdistension under local anesthesia. C) one single injection of placebo (NACL 0.9 % 10 ml) under local anesthesia.
Follow up: clinical evaluation (VAS, HAM-A and HAM-D, QOL assessment, voiding diary) and urodynamics three months after treatment.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Botulinum A toxin | Active comparator | Drug: Intravesical injection of Botulinum A ToxinBotulinum A toxin intravesical injection. |
| Bladder overdistension | Sham comparator | Procedure: Bladder overdistensionStandard treatment: bladder overdistension |
| Placebo | Placebo comparator | Drug: Placebo |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- refractory bladder pain, the urgency-frequency syndrome, and sterile urine
Key exclusion criteria (2 listed)
- neurological diseases
- pregnancy and concomitant use of aminoglycosides and anticoagulants
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Intravesical injection of Botulinum A ToxinAlso: AllerganOne treatment, 100 U vials diluted in 10 ml normal saline | Drug | Botulinum A toxin |
| Bladder overdistensionBladder overdistension | Procedure or surgery | Bladder overdistension |
| PlaceboAlso: One single injection of placeboOne single injection of placebo | Drug | Placebo |
Primary outcome
Clinical efficacy: reduction in pain and diurnal and nocturnal urinary frequency; improvement in QOL; improvement in HAM-A and HAM-D scores.
Time frame: PAIN quantification with 3 months follow up
1 secondary outcome
Urodynamic assessment
Time frame: 3 months follow up
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Apr 2011.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Intravesical injection of Botulinum A Toxin and Bladder overdistension in people with Painful Bladder Syndrome (PBS), run by University Of Perugia at 1 site in Italy.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 20 Apr 2011. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Clinical efficacy: reduction in pain and diurnal and nocturnal urinary frequency; improvement in QOL; improvement in HAM-A and HAM-D scores. (time frame: PAIN quantification with 3 months follow up). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Apr 2011; AzTrials last refreshed its copy on 8 Nov 2026.