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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
NCT00461292
Enrollment
275
Registered
2007-04-17
Start date
2007-05-31
Completion date
2010-04-30
Last updated
2015-10-02

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 injection at Day 1 followed by botulinum toxin Type A 200 U injection \> Week 12; injections into detrusor

botulinum toxin Type A 300 U injection on Day 1 followed by botulinum toxin Type A 300 U injection \> Week 12; injections into detrusor

Placebo injection on Day 1 followed by botulinum toxin Type A 200 U injection \> 12 weeks; injections into detrusor

Placebo injection on Day 1 followed by botulinum toxin Type A 300 U injection \> Week 12; injections into detrusor

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 or 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 the 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

Brazil, Canada, France, Italy, Netherlands, Portugal, Singapore, South Africa, Spain, Taiwan, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
Botulinum Toxin Type A (300U)
botulinum toxin Type A (300U)
91
Botulinum Toxin Type A (200U)
botulinum toxin Type A (200U)
92
Placebo
Normal saline (placebo)
92
Total275

Baseline characteristics

CharacteristicBotulinum Toxin Type A (300U)Botulinum Toxin Type A (200U)PlaceboTotal
Age, Customized
< 40 years
30 participants31 participants25 participants86 participants
Age, Customized
>= 75 years
1 participants1 participants1 participants3 participants
Age, Customized
Between 40 and 64 years
56 participants55 participants61 participants172 participants
Age, Customized
Between 65 and 74 years
4 participants5 participants5 participants14 participants
Sex: Female, Male
Female
52 Participants54 Participants49 Participants155 Participants
Sex: Female, Male
Male
39 Participants38 Participants43 Participants120 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
70 / 8963 / 9152 / 90
serious
Total, serious adverse events
18 / 8917 / 9123 / 90

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 IncontinenceBaseline31.2 Number of Weekly EpisodesStandard Deviation 18.14
Botulinum Toxin Type A (300U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-19.4 Number of Weekly EpisodesStandard Deviation 25.67
Botulinum Toxin Type A (200U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline32.5 Number of Weekly EpisodesStandard Deviation 18.44
Botulinum Toxin Type A (200U)Change From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-21.8 Number of Weekly EpisodesStandard Deviation 18.06
PlaceboChange From Baseline in Number of Weekly Episodes of Urinary IncontinenceBaseline36.7 Number of Weekly EpisodesStandard Deviation 30.67
PlaceboChange From Baseline in Number of Weekly Episodes of Urinary IncontinenceWeek 6-13.2 Number of Weekly EpisodesStandard Deviation 20.02
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)Baseline246.8 Milliliters (mL) of urineStandard Deviation 149.06
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Cystometric Capacity (MCC)Week 6157.2 Milliliters (mL) of urineStandard Deviation 185.18
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Cystometric Capacity (MCC)Baseline247.3 Milliliters (mL) of urineStandard Deviation 147.61
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Cystometric Capacity (MCC)Week 6157.0 Milliliters (mL) of urineStandard Deviation 164.75
PlaceboChange From Baseline in Maximum Cystometric Capacity (MCC)Baseline249.4 Milliliters (mL) of urineStandard Deviation 139.29
PlaceboChange From Baseline in Maximum Cystometric Capacity (MCC)Week 66.5 Milliliters (mL) of urineStandard Deviation 144.77
Secondary

Change From Baseline in Maximum Detrusor Pressure (MDP)

Change from baseline in MDP during the 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)Week 6-26.9 Centimeters of water (cm H2O)Standard Deviation 33.17
Botulinum Toxin Type A (300U)Change From Baseline in Maximum Detrusor Pressure (MDP)Baseline42.1 Centimeters of water (cm H2O)Standard Deviation 33.21
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Detrusor Pressure (MDP)Baseline51.7 Centimeters of water (cm H2O)Standard Deviation 40.95
Botulinum Toxin Type A (200U)Change From Baseline in Maximum Detrusor Pressure (MDP)Week 6-28.5 Centimeters of water (cm H2O)Standard Deviation 47.82
PlaceboChange From Baseline in Maximum Detrusor Pressure (MDP)Baseline41.5 Centimeters of water (cm H2O)Standard Deviation 31.17
PlaceboChange From Baseline in Maximum Detrusor Pressure (MDP)Week 66.4 Centimeters of water (cm H2O)Standard Deviation 41.1
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) QuestionnaireBaseline36.32 Number on a Scale (Score)Standard Deviation 18.685
Botulinum Toxin Type A (300U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 624.26 Number on a Scale (Score)Standard Deviation 28.981
Botulinum Toxin Type A (200U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline37.46 Number on a Scale (Score)Standard Deviation 20.109
Botulinum Toxin Type A (200U)Change From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 624.43 Number on a Scale (Score)Standard Deviation 25.372
PlaceboChange From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireBaseline35.72 Number on a Scale (Score)Standard Deviation 18.656
PlaceboChange From Baseline in Total Score on Incontinence Quality of Life (I-QOL) QuestionnaireWeek 611.71 Number on a Scale (Score)Standard Deviation 20.163

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026