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OnabotulinumtoxinA (BOTOX®) Treatment for Urinary Incontinence in Patients With Overactive Bladder

OnabotulinumtoxinA (BOTOX®) Treatment for Urinary Incontinence in Patients With Overactive Bladder

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01945489
Acronym
COMFORT
Enrollment
254
Registered
2013-09-18
Start date
2013-10-28
Completion date
2017-01-05
Last updated
2017-11-06

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

Conditions

Overactive Bladder

Brief summary

This is a study to evaluate the efficacy and safety of onabotulinumtoxinA (BOTOX®) compared with placebo, in achieving a 100% reduction in urinary incontinence in patients with overactive bladder (OAB) not properly managed with an anticholinergic.

Interventions

BIOLOGICALonabotulinumtoxinA

OnabotulinumtoxinA (BOTOX®) injected into the detrusor.

DRUGNormal saline

Normal saline (placebo) injected into the detrusor.

Sponsors

Allergan
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

-Patients with symptoms of Overactive Bladder (OAB) (frequency and urgency) with urinary incontinence for at least 6 months prior to screening.

Exclusion criteria

* Symptoms of OAB due to a neurological reason * Use of anticholinergics or other medications or therapies to treat symptoms of OAB within 7 days of screening * Use of Clean Intermittent Catheterization (CIC) or indwelling catheter to manage urinary incontinence * Use of botulinum toxin therapy of any serotype for any urological condition * Use of botulinum toxin therapy of any serotype for any non-urological condition in the 12 weeks prior to screening * History of any pelvic or urological abnormalities, bladder surgery or disease, other than OAB, that may affect bladder function * Diagnosis of Myasthenia gravis, Eaton-Lambert syndrome, or Amyotrophic Lateral Sclerosis.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Who Achieve a 100% Reduction in Urinary Incontinence EpisodesBaseline, Week 12Urinary incontinence is defined as involuntary loss of urine as recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of incontinence episodes were averaged daily during this period and compared to baseline to determine 100% reduction in episodes.
Change From Baseline in the Daily Average Number of Episodes of Urinary IncontinenceBaseline, Week 12Urinary incontinence is defined as involuntary loss of urine as recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of incontinence episodes were averaged daily during this period. A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.

Secondary

MeasureTime frameDescription
Change From Baseline in King's Health Questionnaire (KHQ) Domain ScoresBaseline, Week 12The King's Health Questionnaire is a disease-specific questionnaire that measures the quality of life of participants with urinary incontinence. The questionnaire consists of 7 domains, including emotions, personal relationships, physical limitations, role limitations, severity (coping) measures, sleep/energy and social limitations. Domain scores range from 0 to 100, with a lower score indicating a preferable health status (absence of urinary incontinence impacts). A negative number change from Baseline indicates improvement and a positive number change from Baseline indicates a worsening.
Change From Baseline in the Daily Average Number of Micturition EpisodesBaseline, Week 12The number of micturition episodes (the number of times a patient urinates into the toilet) in Treatment Cycle 1 was recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of micturition episodes were averaged daily during this period A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.
Change From Baseline in the Daily Average Number of Urgency EpisodesBaseline, Week 12The number of daily urgency episodes (the number of times a patient experiences the urgency to urinate) in Treatment Cycle 1 was recorded by the patient in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of urgency episodes were averaged daily during this period A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.
Change From Baseline in the Daily Average Number of Nocturia EpisodesBaseline, Week 12Nocturia episodes were recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of nocturia episodes were averaged daily during this period. A nocturia episode is a void (urinating into the toilet) that interrupts one's sleep. A negative number change from Baseline indicates an improvement and a positive number change from baseline indicates a worsening.

Countries

United States

Participant flow

Participants by arm

ArmCount
OnabotulinumtoxinA
OnabotulinumtoxinA (BOTOX®) 100U injected into the detrusor at Day 1, followed by a repeat injection of onabotulinumtoxinA 100U after a minimum of 12 weeks (if applicable).
129
Placebo/OnabotulinumtoxinA
Placebo (Normal saline) injected into the detrusor on Day 1, followed by an injection of onabotulinumtoxinA 100U after a minimum of 12 weeks (if applicable).
125
Total254

Withdrawals & dropouts

PeriodReasonFG000FG001
Cycle 1Adverse Event20
Cycle 1Lost to Follow-up40
Cycle 1Other Miscellaneous Reasons31
Cycle 1Personal Reasons42
Cycle 1Protocol Violation01
Cycle 2Adverse Event10
Cycle 2Lost to Follow-up01

Baseline characteristics

CharacteristicOnabotulinumtoxinAPlacebo/OnabotulinumtoxinATotal
Age, Continuous60.8 years
STANDARD_DEVIATION 12.73
60.9 years
STANDARD_DEVIATION 12.1
60.8 years
STANDARD_DEVIATION 12.4
Sex: Female, Male
Female
114 Participants112 Participants226 Participants
Sex: Female, Male
Male
15 Participants13 Participants28 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
51 / 12834 / 12575 / 195
serious
Total, serious adverse events
6 / 1288 / 1253 / 195

Outcome results

Primary

Change From Baseline in the Daily Average Number of Episodes of Urinary Incontinence

Urinary incontinence is defined as involuntary loss of urine as recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of incontinence episodes were averaged daily during this period. A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.

Time frame: Baseline, Week 12

Population: Participants from the Intent-to-Treat Population, all participants who were randomized to study drug, with data available at Baseline and Week 12.

ArmMeasureGroupValue (MEAN)Dispersion
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Episodes of Urinary IncontinenceBaseline5.4 incontinence episodesStandard Deviation 3.16
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Episodes of Urinary IncontinenceChange at Week 12-3.4 incontinence episodesStandard Deviation 3.69
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Episodes of Urinary IncontinenceBaseline5.9 incontinence episodesStandard Deviation 3.75
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Episodes of Urinary IncontinenceChange at Week 12-1.7 incontinence episodesStandard Deviation 3.23
Primary

Percentage of Participants Who Achieve a 100% Reduction in Urinary Incontinence Episodes

Urinary incontinence is defined as involuntary loss of urine as recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of incontinence episodes were averaged daily during this period and compared to baseline to determine 100% reduction in episodes.

Time frame: Baseline, Week 12

Population: Participants from the Intent-to-Treat Population, all participants who were randomized to study drug, with data available at Baseline and Week 12.

ArmMeasureValue (NUMBER)
OnabotulinumtoxinAPercentage of Participants Who Achieve a 100% Reduction in Urinary Incontinence Episodes32.0 percentage of participants
Placebo/OnabotulinumtoxinAPercentage of Participants Who Achieve a 100% Reduction in Urinary Incontinence Episodes7.2 percentage of participants
Secondary

Change From Baseline in King's Health Questionnaire (KHQ) Domain Scores

The King's Health Questionnaire is a disease-specific questionnaire that measures the quality of life of participants with urinary incontinence. The questionnaire consists of 7 domains, including emotions, personal relationships, physical limitations, role limitations, severity (coping) measures, sleep/energy and social limitations. Domain scores range from 0 to 100, with a lower score indicating a preferable health status (absence of urinary incontinence impacts). A negative number change from Baseline indicates improvement and a positive number change from Baseline indicates a worsening.

Time frame: Baseline, Week 12

Population: Intent-to-Treat Population included all participants who were randomized to study drug, n is the number of participants with available data at the given time-point.

ArmMeasureGroupValue (MEAN)Dispersion
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresEmotions, Baseline (n=128,123)52.38 score on a scaleStandard Deviation 30.982
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresEmotions, Change at Week 12 (n=121,118)-21.98 score on a scaleStandard Deviation 33.164
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPersonal Relationships, Baseline (n=87,86)42.91 score on a scaleStandard Deviation 35
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPersonal Relationships,Change at Week 12 (n=71,74)-18.31 score on a scaleStandard Deviation 31.39
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPhysical Limitations, Baseline (n=128,125)66.41 score on a scaleStandard Deviation 29.651
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPhysical Limitations,Change at Week 12 (n=121,120)-32.37 score on a scaleStandard Deviation 35.046
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresRole Limitations, Baseline (n=127,123)70.73 score on a scaleStandard Deviation 27.516
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresRole Limitations, Change at Week 12 (n=117,117)-37.75 score on a scaleStandard Deviation 32.928
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSeverity (Coping) Measures, Baseline (n=128,124)65.68 score on a scaleStandard Deviation 21.347
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSeverity (Coping), Change at Week 12 (n=121,119)-24.89 score on a scaleStandard Deviation 29.558
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSleep/Energy, Baseline (n=128,123)71.35 score on a scaleStandard Deviation 25.696
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSleep/Energy, Change at Week 12 (n=121,118)-24.93 score on a scaleStandard Deviation 26.885
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSocial Limitations, Baseline (n=128,125)43.69 score on a scaleStandard Deviation 28.911
OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSocial Limitations, Change at Week 12 (n=120,120)-20.40 score on a scaleStandard Deviation 32.634
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSleep/Energy, Baseline (n=128,123)71.00 score on a scaleStandard Deviation 25.053
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresEmotions, Baseline (n=128,123)53.60 score on a scaleStandard Deviation 29.243
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresRole Limitations, Change at Week 12 (n=117,117)-16.67 score on a scaleStandard Deviation 28.196
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresEmotions, Change at Week 12 (n=121,118)-6.63 score on a scaleStandard Deviation 26.177
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSocial Limitations, Baseline (n=128,125)46.81 score on a scaleStandard Deviation 32.065
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPersonal Relationships, Baseline (n=87,86)43.22 score on a scaleStandard Deviation 36.638
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSeverity (Coping) Measures, Baseline (n=128,124)69.18 score on a scaleStandard Deviation 22.201
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPersonal Relationships,Change at Week 12 (n=71,74)-6.98 score on a scaleStandard Deviation 28.537
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSleep/Energy, Change at Week 12 (n=121,118)-10.03 score on a scaleStandard Deviation 25.796
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPhysical Limitations, Baseline (n=128,125)64.93 score on a scaleStandard Deviation 30.145
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSeverity (Coping), Change at Week 12 (n=121,119)-9.17 score on a scaleStandard Deviation 19.925
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresPhysical Limitations,Change at Week 12 (n=121,120)-10.00 score on a scaleStandard Deviation 28.039
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresSocial Limitations, Change at Week 12 (n=120,120)-5.97 score on a scaleStandard Deviation 25.332
Placebo/OnabotulinumtoxinAChange From Baseline in King's Health Questionnaire (KHQ) Domain ScoresRole Limitations, Baseline (n=127,123)71.95 score on a scaleStandard Deviation 29.362
Secondary

Change From Baseline in the Daily Average Number of Micturition Episodes

The number of micturition episodes (the number of times a patient urinates into the toilet) in Treatment Cycle 1 was recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of micturition episodes were averaged daily during this period A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.

Time frame: Baseline, Week 12

Population: Participants from the Intent-to-Treat Population, all participants who were randomized to study drug, with data available at Baseline and Week 12.

ArmMeasureGroupValue (MEAN)Dispersion
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Micturition EpisodesBaseline10.2 micturition episodesStandard Deviation 2.99
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Micturition EpisodesChange at Week 12-2.6 micturition episodesStandard Deviation 2.71
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Micturition EpisodesBaseline11.1 micturition episodesStandard Deviation 3.43
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Micturition EpisodesChange at Week 12-1.3 micturition episodesStandard Deviation 2.62
Secondary

Change From Baseline in the Daily Average Number of Nocturia Episodes

Nocturia episodes were recorded by the participant in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of nocturia episodes were averaged daily during this period. A nocturia episode is a void (urinating into the toilet) that interrupts one's sleep. A negative number change from Baseline indicates an improvement and a positive number change from baseline indicates a worsening.

Time frame: Baseline, Week 12

Population: Participants from the Intent-to-Treat Population, all participants who were randomized to study drug, with data available at Baseline and Week 12.

ArmMeasureGroupValue (MEAN)Dispersion
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Nocturia EpisodesBaseline2.2 nocturia episodesStandard Deviation 1.43
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Nocturia EpisodesChange at Week 12-0.7 nocturia episodesStandard Deviation 1.34
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Nocturia EpisodesChange at Week 12-0.4 nocturia episodesStandard Deviation 1.28
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Nocturia EpisodesBaseline2.1 nocturia episodesStandard Deviation 1.43
Secondary

Change From Baseline in the Daily Average Number of Urgency Episodes

The number of daily urgency episodes (the number of times a patient experiences the urgency to urinate) in Treatment Cycle 1 was recorded by the patient in a bladder diary during the 3 consecutive days prior to the study visit in Treatment Cycle 1. The number of urgency episodes were averaged daily during this period A negative number change from Baseline indicates an improvement and a positive number change from Baseline indicates a worsening.

Time frame: Baseline, Week 12

Population: Participants from the Intent-to-Treat Population, all participants who were randomized to study drug, with data available at Baseline and Week 12.

ArmMeasureGroupValue (MEAN)Dispersion
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Urgency EpisodesBaseline4.9 urgency episodesStandard Deviation 3.09
OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Urgency EpisodesChange at Week 12-3.3 urgency episodesStandard Deviation 3.49
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Urgency EpisodesBaseline5.3 urgency episodesStandard Deviation 3.47
Placebo/OnabotulinumtoxinAChange From Baseline in the Daily Average Number of Urgency EpisodesChange at Week 12-1.7 urgency episodesStandard Deviation 3.24

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026