Study: NCT02820844

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: GSK1358820
Description: GSK1358820 injection contains botulinum toxin type A (100 U), sodium chloride (0.9 milligrams \[mg\]), and human serum albumin (0.5 mg). 10 mL of the drug will be injected at 20 sites (0.5 mL at each site) in the detrusor muscle, spaced approximately 1 centimeter (cm) apart. The injection will be administered under local anesthesia, via cystoscopy. Permitted anesthesia options for cystoscopy are intraurethral lidocaine (or similar) gel, and for treatment administration, installation of 1-2% lidocaine (or similar anesthetic) into the bladder.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: GSK1358820
Description: GSK1358820 injection contains botulinum toxin type A (100 U), sodium chloride (0.9 milligrams \[mg\]), and human serum albumin (0.5 mg). 10 mL of the drug will be injected at 20 sites (0.5 mL at each site) in the detrusor muscle, spaced approximately 1 centimeter (cm) apart. The injection will be administered under local anesthesia, via cystoscopy. Permitted anesthesia options for cystoscopy are intraurethral lidocaine (or similar) gel, and for treatment administration, installation of 1-2% lidocaine (or similar anesthetic) into the bladder.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Placebo
Description: Placebo injection is made up of sodium chloride (0.9 mg). 10 mL of the injection will be injected at 20 sites (0.5 mL at each site) in the detrusor muscle, spaced approximately 1 cm apart. The injection will be administered under local anesthesia, via cystoscopy. Permitted anesthesia options for cystoscopy are intraurethral lidocaine (or similar) gel, and for treatment administration, installation of 1-2% lidocaine (or similar anesthetic) into the bladder.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Antibiotic therapy
Description: Subjects will use prophylactic antibiotic therapy approved for the indication of UTIs, at the discretion of the investigator, with the exception of those in the class of aminoglycosides. The therapy will begin 1 to 3 days prior to the administration of study treatment, and continue for 1 to 3 days following the treatment.

Intervention type: DRUG
Group type: PLACEBO_COMPARATOR
Intervention: Antibiotic therapy
Description: Subjects will use prophylactic antibiotic therapy approved for the indication of UTIs, at the discretion of the investigator, with the exception of those in the class of aminoglycosides. The therapy will begin 1 to 3 days prior to the administration of study treatment, and continue for 1 to 3 days following the treatment.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Bladder diary
Description: The bladder diary is a self-reporting tool to record subject's data on micturition. Subjects will enter data in the diary over 3 consecutive days. During Screening, data will be collected within 28 days prior to first treatment. During treatment periods, data will be collected within a week prior to each scheduled visit. The bladder diary will capture the following information: 1) Date and time of urinary episode, 2) episodes of micturition, 3) episodes of urinary incontinence, 4) episodes of urgency, 5) intensity of urgency, 6) episodes of nocturia, 7) use of CIC, and 8) urine volume. Diary data will not be collected when a subject experiences symptoms of a UTI.

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: Bladder diary
Description: The bladder diary is a self-reporting tool to record subject's data on micturition. Subjects will enter data in the diary over 3 consecutive days. During Screening, data will be collected within 28 days prior to first treatment. During treatment periods, data will be collected within a week prior to each scheduled visit. The bladder diary will capture the following information: 1) Date and time of urinary episode, 2) episodes of micturition, 3) episodes of urinary incontinence, 4) episodes of urgency, 5) intensity of urgency, 6) episodes of nocturia, 7) use of CIC, and 8) urine volume. Diary data will not be collected when a subject experiences symptoms of a UTI.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: King's Health Questionnaire (KHQ)
Description: The KHQ will assess the impact of urinary incontinence on QOL. It is a questionnaire with 21 items and the following 9 domains: 1) General health, 2) Incontinence impact, 3) Role limitations, 4) Physical limitations, 5) Social limitations, 6) Personal relationships, 7) Emotion, 8) Sleep/energy, 9) Severity measure. The items are answered by subjects themselves, and scores are summated using a defined algorithm.

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: King's Health Questionnaire (KHQ)
Description: The KHQ will assess the impact of urinary incontinence on QOL. It is a questionnaire with 21 items and the following 9 domains: 1) General health, 2) Incontinence impact, 3) Role limitations, 4) Physical limitations, 5) Social limitations, 6) Personal relationships, 7) Emotion, 8) Sleep/energy, 9) Severity measure. The items are answered by subjects themselves, and scores are summated using a defined algorithm.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Overactive Bladder Symptom Score (OABSS)
Description: The OABSS will comprehensively assess symptoms of OAB, such as frequency of micturition, nocturia, urinary urgency, and urge incontinence. It consists of 4 questions which will be responded by subjects themselves, by selecting the most appropriate answer for each question.

Intervention type: OTHER
Group type: PLACEBO_COMPARATOR
Intervention: Overactive Bladder Symptom Score (OABSS)
Description: The OABSS will comprehensively assess symptoms of OAB, such as frequency of micturition, nocturia, urinary urgency, and urge incontinence. It consists of 4 questions which will be responded by subjects themselves, by selecting the most appropriate answer for each question.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: Treatment Benefit Scale (TBS)
Description: The TBS consists of one question (My condition has), to which the subject will answer by selecting one of the following responses: greatly improved, improved, not changed, worsened. The TBS will assess treatment benefit of GSK1358820.