ClinicalTrials.gg
CompletedNCT00256542Updated Sep 29, 2006

Study of U101 for Bladder Pain and/or Urgency

A Phase 2 interventional study of Alkalinized Lidocaine-Heparin in Pelvic Pain, Interstitial Cystitis and Bladder Diseases, sponsored by Urigen. Completed at 9 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2006-09-29.

Sponsored by Urigen · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
90
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to determine whether intravesical U101 (alkalinized lidocaine-heparin) treatment reduces the symptoms of pelvic pain and/or urgency of bladder origin.

02

Conditions studied

  • Pelvic Pain
  • Interstitial Cystitis
  • Bladder Diseases

Keywords

  • interstitial cystitis
  • pelvic pain
  • urgency
  • frequency
  • Pelvic Pain and/or Urgency of Bladder Origin
03

In context

Pelvic Pain

375 studies on the registry are indexed under Pelvic Pain; 89 are open to participants now.

This study's enrollment of 90 is above the median of 60 across 277 interventional studies indexed under Pelvic Pain.

Browse Pelvic Pain studies →

Lead sponsor

Urigen is the lead sponsor of 3 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male and female subjects at least 18 years of age.
  • Subjects must have given written to participate in this trial.
  • All female subjects, except those who are and/or surgically sterilized, must consent to use two medically acceptable methods of throughout the entire study period. Medically acceptable methods of contraception that may be used by the subject and/or her partner include: abstinence, birth control pills, diaphragm with spermicide, intrauterine device (IUD), condom and foam, vaginal spermicidal suppository, progestin implant, and Depo-Provera injections.
  • Subjects must have had symptoms of pelvic pain and/or urgency.
  • Medical history and physical examination results must be clinically acceptable to the Investigator. Medical Monitor may evaluate subjects who don't meet eligibility criteria.
  • Female subjects currently using hormone therapy (HT) must have been using HT for at least 3 months.

Exclusion criteria

Exclusion Criteria:

  • Subjects less than 18 years of age.
  • Subjects with known to heparin or lidocaine.
  • Female subjects who have a positive pregnancy test at the time of screening, who are pregnant or lactating, or who are planning to become pregnant during the study period.
  • Subjects who are chronic users of narcotics or who are using any narcotics at the time of study entry.
  • Subjects who have hepatic disease or abnormal liver function tests (more than twice the ).
  • Subjects who do not expect to be available for the entire duration of the study.
  • Subjects with any coexisting significant medical condition that is likely to interfere with study procedures (cardiovascular, hematological, central nervous system, pulmonary, renal, etc.)
  • Subjects who have been treated with dimethyl sulfoxide (DMSO) or other bladder instillation therapies within three months prior to study entry.
  • Subjects who have had cystoscopic dilatation of their bladder or urethra within three months of study entry.
  • Subjects who have taken or used any drug or device within 30 days before the start of the study, or who are currently enrolled in another investigational study.
  • Subjects contemplating having or scheduled for any invasive surgical procedures during the study period.
  • Subjects who are unwilling or unable to abide by the requirements of the study.
  • History of gastrointestinal (GI) bleeding
  • Active bleeding from any source
  • Screening (aPTT) above normal limits
  • Systolic blood pressure (BP) > 180 mmHg or \< 90 mmHg at Screening.
  • Subjects with an actively bleeding lesion/area in the bladder as detected by urinalysis
Terms in these criteria, in plain language(8)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Single group
Masking
Double
Enrollment
90 participants

Interventions

  • DrugAlkalinized Lidocaine-Heparin
06

What researchers measure

Primary outcomes

  1. Overall improvement in combined symptoms of pain and urgency at 3 weeks

Secondary outcomes

  1. Safety

  2. Reduction in pain on ten point scale at 3 weeks

  3. Reduction in urgency on ten point scale at 3 weeks

  4. Change in number of voids/24 hours

  5. Change in average void volume

  6. Reduction in PUF score (pelvic pain, urgency/frequency) at 3 weeks

  7. Reduction in O'Leary-Sant score at 3 weeks

07

Study locations

9 sites
  • UCSD Medical Center
    San Diego, California 92103, United States
  • Georgia Urology
    Cartersville, Georgia 30120, United States
  • St. Mary's Good Samaritan
    Centralia, Illinois 62801, United States
  • The Urogynecology Center
    Overland Park, Kansas 66215, United States
  • Mid-Michigan Health Centers
    Jackson, Michigan 49201, United States
  • Central Park Urology
    New York City, New York 10019, United States
  • The Urology Center
    Greensboro, North Carolina 27403, United States
  • Urologic Specialists of Oklahoma, Inc.
    Tulsa, Oklahoma 74146, United States
  • Whitmore Urology Office
    Philadelphia, Pennsylvania 19146, United States
08

References and documents

Publications

  • 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 ↗
09

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Jan 2006 and a completion of Sep 2006. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 17, 2005
First posted
Nov 21, 2005
Start
Jan 2006
Completion
Sep 2006
Last update
Sep 29, 2006
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
No changes since tracking began. The registry record was last updated on Sep 29, 2006, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00256542
Lead sponsor
Urigen
First posted
Nov 21, 2005
Start date
Jan 2006
Completion
Sep 2006
Last update
Sep 29, 2006

Study contacts

C. Lowell Parsons, MD
principal investigator · UCSD
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2006. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion