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Sponsors and Collaborators: |
University of Washington Paul G. Allen Family Foundation |
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Information provided by: | University of Washington |
ClinicalTrials.gov Identifier: | NCT00194610 |
Patients with interstitial cystitis have been well documented to have pelvic floor muscle tenderness as well as pain on bladder distension. Some investigators have even suggested that pelvic floor muscle pain is primarily the cause of bladder problems.
Botulinum toxin A causes muscle relaxation by inhibiting the acetylcholine release at the neuromuscular junction. It has been shown that this mechanism relieves pain in a number of muscle spasm-related syndromes.
Because, at present, there is little effective therapy available for patients with interstitial cystitis, the researchers want to determine if 100 units of botulinum toxin A will relieve bladder and pelvic pain in these patients.
Condition | Intervention | Phase |
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Painful Bladder Syndrome Interstitial Cystitis |
Drug: Botulinum Toxin A (Botox) |
Phase IV |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double Blind (Subject, Investigator), Placebo Control, Single Group Assignment, Efficacy Study |
Official Title: | Botox (Botulinum Toxin A) as a Treatment for Interstitial Cystitis in Women: A Randomized Placebo Controlled Trial |
Estimated Enrollment: | 30 |
Study Start Date: | May 2004 |
Estimated Study Completion Date: | December 2010 |
Estimated Primary Completion Date: | June 2009 (Final data collection date for primary outcome measure) |
Screening Visit:
After being screened by her caregiver, the patient will be given the opportunity to ask questions about the study. She will then be asked to read and sign the consent and then be randomized.
Then, for women of childbearing age, a pregnancy test will be done.
Next, we will ask the patient to fill out baseline study forms and she will be given a Voiding Diary. She will also be asked to provide a urine sample which will be processed for chemistry.
Injection Visit:
This visit will be scheduled one week after the Screening Visit. First, a standard history and physical will be done. Then the clinician will proceed with the injection. The subject will receive an injection of not more than 5 ml of 1% lidocaine without epinephrine at the site of the botulinum toxin A injection.
Next, 25 units of Botox will be injected, via the transvaginal route, on either side of the bladder neck. The remaining 50 units will be injected (in 2 - 25 unit doses) into other pelvic sites that the patient has identified as tender during the patient examination.
1 Month Post Injection Mailing: The patient will be mailed a packet containing follow-up questionnaires and asked to mail them back upon completion.
6 Week Urine Collection Visit: Two weeks after receiving her study injection, we will ask the patient to go to the Urology Clinic and provide a urine sample.
2 Month Post Injection Mailing: Same as 1 Month Post Injection Visit.
3 Month Post Visit: The subject will be asked to fill out follow-up questionnaires and will be asked to turn in her last set of Voiding Diaries.
Ages Eligible for Study: | 18 Years and older |
Genders Eligible for Study: | Female |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
Contact: Sharon Downing, RN | 206-598-0850 | sdowning@u.washington.edu |
United States, Washington | |
University of Washington - Urology Clinic | Recruiting |
Seattle, Washington, United States, 98195 |
Principal Investigator: | Jane L Miller, MD | University of Washington |
Responsible Party: | University of Washington ( Jane L. Miller, MD, Principal Investigator ) |
Study ID Numbers: | 25398-D |
Study First Received: | September 13, 2005 |
Last Updated: | December 27, 2008 |
ClinicalTrials.gov Identifier: | NCT00194610 |
Health Authority: | United States: Institutional Review Board |
Cystitis, Interstitial Botulinum Toxins Cystocele Urologic Diseases |
Urinary Bladder Diseases Cystitis Pain Botulinum Toxin Type A |
Pathologic Processes Disease Anti-Dyskinesia Agents Therapeutic Uses Syndrome |
Physiological Effects of Drugs Neuromuscular Agents Peripheral Nervous System Agents Central Nervous System Agents Pharmacologic Actions |