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Safety and Efficacy Study of Botulinum Toxin Type A for the Treatment of Neurogenic Overactive Bladder

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00311376
Enrollment
416
Registered
2006-04-06
Start date
2006-08-31
Completion date
2010-05-31
Last updated
2015-12-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Overactive Bladder

Brief summary

The purpose of this study is to assess the safety and effectiveness of botulinum toxin type A in treating overactive bladder in spinal cord injury or multiple sclerosis patients.

Interventions

botulinum toxin Type A 200 U (tx 1) followed by botulinum toxin Type A 200 U (tx 2); injections into detrusor, at \> 12 weeks interval

botulinum toxin Type A 300 U (tx 1) followed by botulinum toxin Type A 300 U (tx 2); injections into detrusor, at \> 12 weeks interval

Placebo (tx 1) followed by botulinum toxin Type A 200 U (tx 2); injections into detrusor, at \> 12 weeks interval

Placebo (tx 1) followed by botulinum toxin Type A 300 U (tx 2), injections into detrusor, at \> 12 weeks interval

Sponsors

Allergan
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Urinary incontinence as a result of neurogenic overactive bladder due to spinal cord injury or multiple sclerosis * Inadequate response to anticholinergic medication used to treat overactive bladder

Exclusion criteria

* History of evidence of pelvic or urologic abnormality * Previous or current diagnosis of bladder or prostate cancer * Urinary tract infection at time of enrollment

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline, Week 6Change from baseline in the weekly frequency of incontinence episodes at Week 6 after the first treatment. Incontinence is defined as involuntary loss of urine as recorded in a patient bladder diary. A negative number change from baseline indicates a reduction in incontinence episodes (improvement).

Secondary

MeasureTime frameDescription
Change From Baseline in Maximum Cystometric Capacity (MCC)Baseline, Week 6Change from baseline in MCC at week 6. MCC represents the maximum volume of urine the bladder holds. A positive number change from baseline represents an improvement (increase) in maximum volume of urine the bladder holds.
Change From Baseline in Maximum Detrusor Pressure (MDP)Baseline, Week 6Change from baseline in MDP during first involuntary detrusor contraction at week 6. MDP represents the maximum pressure (peak amplitude) in the bladder during the first involuntary contraction of the bladder muscle. The greater the negative number change from baseline, the better the improvement.
Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline, Week 6Change from baseline in I-QOL questionnaire total score at Week 6, as completed by the patient. The I-QOL is a validated, disease-specific quality of life (QOL) questionnaire containing 22 questions designed to measure impact of urinary incontinence on patients' lives. Each question is answered on a 5-point scale (1 = worst QOL and 5 = best QOL). The scores are totaled over the 22 questions and normalized to a score of 0-100 (0 = worst QOL and 100= best QOL). A positive change from baseline represents an improvement

Countries

Australia, Austria, Belgium, Canada, Czechia, France, Germany, New Zealand, Poland, Russia, Slovakia, Ukraine, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Botulinum Toxin Type A (300U)
botulinum toxin Type A (300U)
132
Botulinum Toxin Type A (200U)
botulinum toxin Type A (200U)
135
Placebo
Normal saline (placebo)
149
Total416

Baseline characteristics

CharacteristicBotulinum Toxin Type A (300U)Botulinum Toxin Type A (200U)PlaceboTotal
Age, Customized
<40 years
40 participants48 participants45 participants133 participants
Age, Customized
>=75 years
0 participants0 participants0 participants0 participants
Age, Customized
Between 40 and 64 years
83 participants73 participants95 participants251 participants
Age, Customized
Between 65 and 74 years
9 participants14 participants9 participants32 participants
Sex: Female, Male
Female
89 Participants80 Participants76 Participants245 Participants
Sex: Female, Male
Male
43 Participants55 Participants73 Participants171 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
82 / 12792 / 13570 / 145
serious
Total, serious adverse events
30 / 12724 / 13522 / 145

Outcome results

Primary

Change From Baseline in Number of Weekly Episodes of Urinary Incontinence

Change from baseline in the weekly frequency of incontinence episodes at Week 6 after the first treatment. Incontinence is defined as involuntary loss of urine as recorded in a patient bladder diary. A negative number change from baseline indicates a reduction in incontinence episodes (improvement).

Time frame: Baseline, Week 6

Population: Intent-to-Treat defined as all patients who started the study (randomized)

ArmMeasureGroupValue (MEAN)Dispersion
Botulinum Toxin Type A (300U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline31.1 Number of Weekly EpisodesStandard Deviation 17.02
Botulinum Toxin Type A (300U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-22.7 Number of Weekly EpisodesStandard Deviation 17.1
Botulinum Toxin Type A (200U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline32.3 Number of Weekly EpisodesStandard Deviation 22.76
Botulinum Toxin Type A (200U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-21.0 Number of Weekly EpisodesStandard Deviation 23.77
PlaceboChange From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline28.3 Number of Weekly EpisodesStandard Deviation 15.82
PlaceboChange From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-8.8 Number of Weekly EpisodesStandard Deviation 16.18
Secondary

Change From Baseline in Maximum Cystometric Capacity (MCC)

Change from baseline in MCC at week 6. MCC represents the maximum volume of urine the bladder holds. A positive number change from baseline represents an improvement (increase) in maximum volume of urine the bladder holds.

Time frame: Baseline, Week 6

Population: Intent-to-Treat defined as all patients who started the study (randomized)

ArmMeasureGroupValue (MEAN)Dispersion
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Cystometric Capacity (MCC)Baseline255.8 Millimeters (mL) of urineStandard Deviation 144.99
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Cystometric Capacity (MCC)Week 6167.7 Millimeters (mL) of urineStandard Deviation 169.56
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Cystometric Capacity (MCC)Baseline252.3 Millimeters (mL) of urineStandard Deviation 154.37
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Cystometric Capacity (MCC)Week 6151.2 Millimeters (mL) of urineStandard Deviation 170.59
PlaceboChange From Baseline in Maximum Cystometric Capacity (MCC)Baseline256.0 Millimeters (mL) of urineStandard Deviation 143.83
PlaceboChange From Baseline in Maximum Cystometric Capacity (MCC)Week 615.5 Millimeters (mL) of urineStandard Deviation 127.31
Secondary

Change From Baseline in Maximum Detrusor Pressure (MDP)

Change from baseline in MDP during first involuntary detrusor contraction at week 6. MDP represents the maximum pressure (peak amplitude) in the bladder during the first involuntary contraction of the bladder muscle. The greater the negative number change from baseline, the better the improvement.

Time frame: Baseline, Week 6

Population: Intent-to-Treat defined as all patients who started the study (randomized)

ArmMeasureGroupValue (MEAN)Dispersion
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Detrusor Pressure (MDP)Baseline47.1 Centimeters of water (cm H20)Standard Deviation 36.3
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Detrusor Pressure (MDP)Week 6-33.3 Centimeters of water (cm H20)Standard Deviation 37.75
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Detrusor Pressure (MDP)Baseline51.3 Centimeters of water (cm H20)Standard Deviation 34.66
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Detrusor Pressure (MDP)Week 6-35.1 Centimeters of water (cm H20)Standard Deviation 35.67
PlaceboChange From Baseline in Maximum Detrusor Pressure (MDP)Week 6-2.4 Centimeters of water (cm H20)Standard Deviation 43.41
PlaceboChange From Baseline in Maximum Detrusor Pressure (MDP)Baseline50.9 Centimeters of water (cm H20)Standard Deviation 38.08
Secondary

Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) Questionnaire

Change from baseline in I-QOL questionnaire total score at Week 6, as completed by the patient. The I-QOL is a validated, disease-specific quality of life (QOL) questionnaire containing 22 questions designed to measure impact of urinary incontinence on patients' lives. Each question is answered on a 5-point scale (1 = worst QOL and 5 = best QOL). The scores are totaled over the 22 questions and normalized to a score of 0-100 (0 = worst QOL and 100= best QOL). A positive change from baseline represents an improvement

Time frame: Baseline, Week 6

Population: Intent-to-Treat defined as all patients who started the study (randomized)

ArmMeasureGroupValue (MEAN)Dispersion
Botulinum Toxin Type A (300U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 632.92 Number on a Scale (Score)Standard Deviation 23.849
Botulinum Toxin Type A (300U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline32.18 Number on a Scale (Score)Standard Deviation 18.609
Botulinum Toxin Type A (200U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline33.95 Number on a Scale (Score)Standard Deviation 18.021
Botulinum Toxin Type A (200U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 626.90 Number on a Scale (Score)Standard Deviation 26.813
PlaceboChange From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline35.06 Number on a Scale (Score)Standard Deviation 18.066
PlaceboChange From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 610.81 Number on a Scale (Score)Standard Deviation 18.413

Source: ClinicalTrials.gov · Data processed: Mar 23, 2026