Intravesical Liposomes for Interstitial Cystitis/Painful Bladder Syndrome (IC/PBS)

Interstitial cystitis/painful bladder syndrome (IC/PBS) is a poorly understood chronic disorder of unknown etiology consisting of irritative bladder symptoms and pelvic pain that dramatically affects quality of life. Preclinical study data (obtained by using an IC/PBS model in Sprague-Dawley female rats) have demonstrated normalization of urinary frequency indicating that LP may be a potent protectant of the bladder mucosa against inflammation and irritation. Intravesical LP has so far demonstrated an excellent safety profile and minimal toxicity at concentrations of 2 mg/ml. Thus, we hypothesize that intravesical instillation of LP may form a molecular film on bladder ulcer surfaces in patients with IC and provide a safe, effective, and minimally invasive treatment option to alleviating symptoms.