Phase II Study Efficacy and Safety of Two Dosing Regimens of MN-001 in Patients With Interstitial Cystitis

To evaluate the safety and efficacy of 8 weeks of treatment with MN-001 at 500 mg bid, 500 mg once daily vs. placebo in patients with Interstitial Cystitis.

This is a randomized, double-blind, placebo-controlled, multi-center study to evaluate the efficacy and safety of two dosing regimens of MN-001 in patients with Interstitial Cystitis (IC). Patients will be screened for study eligibility within seven to nine days of randomization. Eligible patients will be randomized in a 1:1:1 ratio to receive either 500 mg MN-001 bid, 500 mg MN-001 once daily or placebo. Patients will be dispensed study drug beginning at Baseline (Visit 2) and will return to the study center for Visit 3 (28 days ± 2 days after Baseline), and Visit 4 (56 days ± 2 days after Baseline), at end of study for safety and efficacy assessments. The patient will be contacted by telephone at Week 6 (42 days ± 2 days after Baseline) for an interim follow up. Study drug will be dispensed at Visits 2 and 3. Safety assessments will include adverse events, physical examinations, clinical laboratory testing, and changes in vital signs. Efficacy assessments include percentage of patients at least "moderately improved" for each treatment group using the patient reported Global Response Assessment (GRA) (see Appendix 1). Secondary assessments include a decrease in bladder pain/urgency based on change in the patient rating from baseline to endpoint using the GRA (see Appendix 1), modified Pelvic Pain and Urgency/Frequency (PUF) Patient Symptom Scale (see Appendix 2) and the O'Leary Sant IC Symptom and Problem Index.

Eligibility Criteria:
Inclusion Criteria:

* Male or female ≥ 18 years of age with a diagnosis of moderate to severe IC;
* Bladder pain ≥ 6 months prior to baseline;
* Urinary frequency of ≥ 8 ≤ 30 micturitions within 24 hours while awake;
* Nocturia ≥ 2x/night;
* Males and females of child-bearing potential (not surgically sterile or post-menopausal) must be abstinent or agree to use an study-accepted contraceptive regimens throughout the study:
* Female patients of child bearing age must have a negative urine pregnancy test at screening;
* Must provide a signed informed consent.

Exclusion Criteria:

* Male or females \< 18 years of age;
* Initiation of new IC medication ≤ 30 days prior to baseline;
* Treatment with Elmiron ≤ 120 days prior to baseline;
* Treatment with bladder hydro-distention ≤ 6 months prior to baseline;
* Treatment with intravesical therapy ≤ 60 days prior to baseline;
* History of previous procedure(s) (e.g., augmentation cytoplasty, cystectomy or cystolysis) that has affected bladder function;
* Active genital herpes or vaginitis ≤ 90 days prior to baseline;
* Urinary tract or prostatic infection ≤ 90 days prior to baseline;
* History of urethral diverticulum;
* History of bladder or ureteral calculi;
* History of cyclophosphamide or chemical cystitis, urinary tuberculosis or radiation cystitis;
* History of bladder tumors;
* History of uterine, cervical, vaginal, prostatic or urethral cancer ≤ 5 years prior to baseline;
* Patient is currently pregnant, lactating or likely to become pregnant during the study;
* Participated in another clinical study with an investigational drug or device ≤ 30 days prior to baseline.