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  • Title: Safety and efficacy of the use of intravesical and oral pentosan polysulfate sodium for interstitial cystitis: a randomized double-blind clinical trial.
    Author: Davis EL, El Khoudary SR, Talbott EO, Davis J, Regan LJ.
    Journal: J Urol; 2008 Jan; 179(1):177-85. PubMed ID: 18001798.
    Abstract:
    PURPOSE: We examined the safety and the efficacy of a combination of intravesical and oral pentosan polysulfate sodium in comparison to only oral pentosan polysulfate sodium in treating interstitial cystitis. MATERIALS AND METHODS: A total of 41 females diagnosed with interstitial cystitis were randomized to receive a combination of intravesical pentosan polysulfate sodium plus oral pentosan polysulfate sodium (21 in treatment group) or intravesical placebo plus oral pentosan polysulfate sodium (20 in placebo group) for 6 weeks. All subjects continued to receive oral pentosan polysulfate sodium for another 12 weeks. The primary outcome was the change in the O'Leary-Sant Interstitial Cystitis Symptoms/Problem Index from baseline to week 6, 12, and 18. Other outcomes included: the changes in Pelvic Pain and Urgency Frequency questionnaire, Health Related Quality of Life index: SF-36, pain scale, urgency scale, voiding log, patient global assessment, and sexual function scales. RESULTS: The change in the total score of O'Leary-Sant Interstitial Cystitis Symptoms/Problems Index from baseline to week 12 among the treatment group (median -12 or approximately a 46% reduction) was significantly greater compared to the placebo group (median -5.5 or approximately a 24% reduction, p = 0.04). At week 18 the treatment group showed statistically significant improvement in all Health Related Quality of Life domains compared to the baseline (p < or = 0.01), while the placebo group showed significant improvement in only 3 Health Related Quality of Life domains, (p < or = 0.05) compared to the baseline. There were no significant differences within major categories of adverse events between treated and placebo groups. CONCLUSIONS: The use of intravesical pentosan polysulfate sodium simultaneously with oral pentosan polysulfate sodium is a safe and effective therapeutic option. These findings will open a new option for patients with interstitial cystitis to reduce their severely devastating symptoms and to improve their quality of life and well-being.
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