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Overactive BladderPhase 3NCT00427648

Local Anesthetic Treatments for Overactive Bladder

A Phase 3 study testing alkalinized xylocaine in people with Overactive Bladder, run by Frank Tu at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to determine whether alkalized lidocaine instilled into the bladder is effective in the treatment of overactive bladder (OAB). Read more about this study

Who is it for?
Ages 18 to 100 years, women only
Conditions the study is for
Overactive Bladder
What is being tested?
alkalinized xylocaine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
22 participants
Where
2 sitesUnited States
Study dates
Mar 2006to May 2010
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 100 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Female patient, 18 years of age and older
  • Overactive bladder defined as:
  • Urinary frequency defined as eight or more voids in a 24 hour period > 50% of days of the week
  • Symptoms of urgency
  • Symptoms of at least three months duration

Who cannot join

  • Positive urine culture in the past month, or more than 3 episodes of bladder infection in the last 2 months
  • Stress or overflow urinary incontinence (determined by clinician) if more than 14 episodes of urinary incontinence per week; also insensate incontinence
  • Pregnancy
  • Seizure disorder or clinically significant renal disease, allergy to lidocaine, uninvestigated hematuria, or history of urinary/reproductive tract malignancy
  • Post-void residual more than 200 cc

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • NorthShore University HealthSystem

    Evanston, Illinois, 60201

  • NorthShore University HealthSystem

    Park City, Illinois, 60085

Other trials in United States

About this study

Official title: Intravesical Alkalized Lidocaine for the Treatment of Overactive Bladder (OAB), a Randomized, Double-blinded Controlled Trial

The purpose of this study is to determine whether alkalized lidocaine instilled into the bladder is effective in the treatment of overactive bladder (OAB).

Read the detailed description

Existing first-line treatments for overactive bladder are limited by requirements for chronic dosing and associated systemic side effects. Small case series suggest that bladder instillation of lidocaine may be effective in downregulating the afferent neuronal activity of a sensitized bladder, leading to elevation of the urge sensory threshold and decreasing detrusor activity. However, neither the effectiveness over placebo nor the durability of the response has been previously investigated.

Comparison(s): We propose a randomized, prospective double-blinded controlled trial to determine if a three-week trial of intravesical alkalized lidocaine instillation decreases symptoms of overactive bladder more than instillation of normal saline using a validated outcome instrument, the OAB-q.

Being tested
alkalinized xylocaine, placebo
Keywords
Administration, Intravesical, Anesthetics, Local
Medical subject headings
Urinary Bladder, Overactive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • alkalinized xylocaineDrug

    30 cc of 1% xylocaine and 10 cc of 0.9% sodium bicarbonate, dosed twice a week for three weeks

  • placeboDrug

    Also called normal saline

    normal saline

Study groups in NCT00427648
Study groupRoleWhat they receive
1Active comparatorxylocaine
Receives: Drug: alkalinized xylocaine
2Placebo comparatornormal saline
Receives: Drug: placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Median Number of Daily Voiding Episodes (by 3-day Voiding Diary) at Six Weeks.

    Measured: 6 weeks

Secondary outcomes (6)
  1. Median Number of Daily Voiding Episodes at 12 Months.

    Measured: 12 months

  2. SF-12 Physical at 6 Weeks

    SF-12 physical is an abbreviated version of the SF-36 a widely used, general health care quality of life instrument. Scores range from 0-100, and higher scores are better outcomes.

    Measured: 6 weeks

  3. OAB-q (Symptom Scale) at 6 Weeks

    OAB-q SS is a 7 item overactive bladder symptom bother sub scale, ranging from 0-100, higher scores mean worse outcome for bother

    Measured: 6 weeks

  4. Global Assessment of Change - Frequency at 6 Weeks

    This is patient overall assessment of change in overactive bladder symptoms after treatment. 0% is no change, 100% is total resolution of symptoms

    Measured: 6 weeks

  5. Average Weekly NRS for Frequency at 6 Weeks

    NRS - numerical rating scale, 0-10 is the range, and higher scores are worse frequency

    Measured: 6 weeks

  6. Cystometric Assessment of Maximal Bladder Capacity at 6 Weeks Only.

    This is based on retrograde infusion of sterile water into the bladder using a catheter, the maximum tolerated volume serving to define how much distension a woman can tolerate.

    Measured: 6 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jan 2007 (estimated)
  2. Study startMar 2006
  3. Primary completionMay 2010
  4. Study completionMay 2010

Why it stopped: funding ran out, poor accrual.

Resources

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00427648
Sponsor's protocol ID
EH 06-092
Status last verified
Feb 2020
First submitted
26 Jan 2007
Last updated
6 Mar 2020
Data monitoring committee
No

Publications

  • Wein AJ, Rovner ES. Definition and epidemiology of overactive bladder. Urology. 2002 Nov;60(5 Suppl 1):7-12; discussion 12. doi: 10.1016/s0090-4295(02)01784-3.

    PubMed 12493342
  • HAINES JS, GRABSTALD H. Xylocaine; a new topical anesthetic in urology. J Urol. 1949 Dec;62(6):901. doi: 10.1016/S0022-5347(17)69020-7. No abstract available.

    PubMed 15394388
  • Parsons CL. Successful downregulation of bladder sensory nerves with combination of heparin and alkalinized lidocaine in patients with interstitial cystitis. Urology. 2005 Jan;65(1):45-8. doi: 10.1016/j.urology.2004.08.056.

    PubMed 15667861
  • Coyne K, Revicki D, Hunt T, Corey R, Stewart W, Bentkover J, Kurth H, Abrams P. Psychometric validation of an overactive bladder symptom and health-related quality of life questionnaire: the OAB-q. Qual Life Res. 2002 Sep;11(6):563-74. doi: 10.1023/a:1016370925601.

    PubMed 12206577

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing alkalinized xylocaine in people with Overactive Bladder, run by Frank Tu at 2 sites in United States.

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 5 inclusion and 5 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: stopped early, as of the sponsor's last update on 6 Mar 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Mar 2020). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Median Number of Daily Voiding Episodes (by 3-day Voiding Diary) at Six Weeks. (time frame: 6 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00427648, which also lists 4 linked publications.

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 6 Mar 2020.

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