Prostatitis Clinical Trial
Official title:
Trial of Viagra' in Men With Chronic Pelvic Pain Syndrome Type III
Verified date | October 2008 |
Source | University of Washington |
Contact | n/a |
Is FDA regulated | No |
Health authority | United States: Food and Drug Administration |
Study type | Interventional |
Viagra is a potent 5-PDE inhibitor that causes vasodilation in the penis and, therefore,
erection in men with erectile dysfunction. Our hypothesis is that Viagra may improve the
symptoms of men with Chronic Pelvic Pain Syndrome based on the following assumptions:
Chronic Pelvic Pelvic Syndrome and Interstitial Cystitis involve poorly understood central
and peripheral pain sensitization such as are seen in Chronic Sympathetic Dystrophy, also
called Chronic Regional Pain Syndrome. This pain may be caused by constricted blood vessels
resulting from past stress, injury or trauma
Viagra will dilate sympathetically constricted vessels and improve pelvic blood flow in the
same manner it does in men with erectile dysfunction.
Since men with Chronic Pelvic Pain Syndrome often complain of sexual dysfunction; improving
sexual function and, therefore, quality of life may improve overall well being and
perception of pain.
Status | Terminated |
Enrollment | 30 |
Est. completion date | July 2007 |
Est. primary completion date | |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 18 Years to 65 Years |
Eligibility |
Inclusion Criteria: - Diagnosis of male Chronic Pelvic Pain Syndrome Type III - Age 18 - 65 - Pelvic pain duration of at least 3 months Exclusion Criteria: - Urinary tract infection within the last year - Sexually transmitted disease within 3 months - Antiviral therapy or antibiotics within the last 3 months - Currently taking any medications or recreational drugs containing nitrates 3A4 inhibitors such as erythromycin, ketoconazole, or itraconazole - Alpha-blocker therapy for treatment of high blood pressure or prostate problems - Suffered a heart attack, stroke or life-threatening arrhythmia within the last months - Cardiac failure or coronary artery disease causing unstable angina - Resting hypotension (BP<90/50) or hypertension (BP>170/110) - Patients with retinitis pigmentosa - Kidney, liver or blood problems (including sickle cell anemia or leukemia) - Allergy to sildenafil - Deformed penis, Peyronie's disease or ever having had an erection lasting more than 4 hours - Stomach ulcers or any types of bleeding problems - Use of any other medical treatments that cause erections: pills, medicines that are injected or inserted into the penis, implants or vacuum pumps - Back pain, unilateral testicular pain or rectal pain only - Post-surgical pain - Prostate biopsy or cystoscopy within 3 months - Pain from another source in the genital tract, such as kidney stones or neoplasm - History of prostate, bladder, renal or other urinary malignancies - History of intravesical Bacillus Calmette-Guerin (BCG) - Ulcerative colitis or Crohn's disease - Radiation therapy to pelvis - History of genitourinary tuberculosis - Any neurological abnormalities including spinal cord injury and stroke - Overtly psychotic or suicidal - Unable to understand the protocol In addition, subjects will be asked to refrain from having any new treatment for prostatitis during the study period, but will be allowed to remain on stable chronic therapy that they have been receiving for 3 or more months |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double-Blind, Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | University of Washington, Urology Clinic | Seattle | Washington |
Lead Sponsor | Collaborator |
---|---|
University of Washington | Berger, Richard E., M.D. |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | NIH-CPSI -pain scores at 3 and 12 month post tx follow-up | |||
Primary | AUA Score - at 3 and 12 month post tx follow-up | |||
Secondary | Graded Chronic Pain Scale (GCPS)-3 & 12 mo post tx f/u |
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