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Anticholinergic vs. Botox Comparison Study (ABC)

This study has been completed.
Office of Research on Women's Health (ORWH)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Information provided by (Responsible Party):
dwallace, RTI International Identifier:
First received: July 19, 2010
Last updated: September 27, 2013
Last verified: September 2013
Urinary incontinence is a prevalent condition that markedly impacts quality of life and disproportionately affects women. Overactive Bladder syndrome (OAB) is defined as symptoms of urgency and frequency with urge urinary incontinence (OAB-wet) and without urge incontinence (OAB-dry). Conservative first line treatments for urge incontinence combined with other OAB symptoms (OAB-wet) include behavioral therapy, pelvic floor training +/- biofeedback, or the use of anticholinergic medications. These treatment modalities may not result in total continence and often drug therapy is discontinued because of lack of efficacy, side effects and cost or because of not wanting to take a pill. Behavioral therapy and pelvic muscle exercises require consistent, active intervention by the patient which is often not sustained. Thus, the objective of the Anticholinergic vs Botox Comparison Study (ABC) is to determine whether a single intra-detrusor injection of botulinum toxin A (Botox A®) is more effective than a standardized regimen of oral anticholinergics in reducing urge urinary incontinence. The null hypothesis is that there is no difference in the change from baseline in average number of urge urinary incontinence episodes over 6 months between groups.

Condition Intervention Phase
Urge Urinary Incontinence
Overactive Bladder
Drug: Botulinum toxin A (Botox A®)
Drug: Solifenacin 5mg
Drug: Solifenacin 10mg
Drug: Trospium chloride
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double Blind (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: Efficacy and Impact of Botulinum Toxin A Versus Anticholinergic Therapy for the Treatment of Bothersome Urge Urinary Incontinence

Resource links provided by NLM:

Further study details as provided by NICHD Pelvic Floor Disorders Network:

Primary Outcome Measures:
  • change in urge urinary incontinence episodes [ Time Frame: 6 months ]
    change from baseline in mean number of urge incontinent episodes over the 6-month double-blind period( i.e., at months 1, 2, 3, 4, 5 and 6)

Secondary Outcome Measures:
  • change in OABq-SF scores [ Time Frame: 6 months ]
    change from baseline in the Overactive Bladder Questionnaire (OABq-SF) scores

  • >75% reduction in urge urinary incontinence episodes [ Time Frame: 6 months ]
    the proportion of subjects that have >75% reduction in urge urinary incontinence episodes relative to baseline

  • change in QOL outcomes [ Time Frame: 3, 6 months ]
    Change from baseline in PFDI-SF, PFIQ-SF, PISQ-SF, and SF-12, and proportion of subjects reporting improvement (from the PGI-I) and satisfaction (from the TSQM II) at 3 and 6 months

Enrollment: 249
Study Start Date: March 2010
Study Completion Date: May 2012
Primary Completion Date: May 2012 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Botox A
A single intradetrusor injection of 100U botulinum toxin A (Botox A®) plus daily oral placebo tablets
Drug: Botulinum toxin A (Botox A®)
A single intradetrusor injection of 100U botulinum toxin A in 10 mL plus 0.1 mL of indigo carmine administered during cytoscopy. Between 100 and 200ml of saline is instilled into the bladder prior to injection to allow adequate visualization of the entire bladder urothelium. The treating physician will inject a total of 10.1 mL of the masked substance into approximately 15 to 20 different detrusor muscle sites under direct visualization using disposable needles. Injections will be spread out to equally cover the posterior bladder wall and dome, but spare the bladder trigone and ureteral orifices.
Active Comparator: Standardized Anticholinergic Regimen
A standardized 3-step anticholinergic regimen of daily oral solifenacin 5mg, solifenacin 10mg, and/or trospium XR 60mg, as well as a single intradetrusor injection of saline (placebo). All subjects will begin on solifenacin 5 mg for 2 mo. Dose escalation or drug change will be based exclusively on the result of the Patient Global Symptom Control Rating. If a subject's symptoms are not adequately controlled at 2 mo, she will be escalated to solifenacin 10mg, and similarly at 4 mo to trospium XR 60mg. If a subject's symptoms are adequately controlled on solifenacin 5 mg, she may continue that study medication for the entirety of the study (6 mo). Additionally, if a subject is dose-escalated to solifenacin 10mg at study mo 2 or 4, and her symptoms are adequately controlled, she may continue the solifenacin 10mg dose for the remainder of the study.
Drug: Solifenacin 5mg
Oral Solifenacin 5mg once a day for up to 6 months
Other Name: Vesicare
Drug: Solifenacin 10mg
Oral Solifenacin 10mg once a day for up to 4 months
Other Name: Vesicare
Drug: Trospium chloride
Oral Trospium XR 60mg once a day for up to 2 months
Other Name: Sanctura

Detailed Description:

This study is a 6-month double-blind randomized trial comparing intra-detrusor botulinum toxin A (Botox A®) and anticholinergic therapy in women without neurologic disease with urge incontinence. Subjects will be followed up to an additional six months off study drug to determine duration of treatment effect.

The primary aim is to compare the change in urge incontinence episodes over 6 months between women receiving a single intra-detrusor injection of 100 unit of botulinum toxin A (Botox A®) plus daily oral placebo tablets versus women receiving a single intra-detrusor injection of saline plus daily anticholinergic therapy.


Ages Eligible for Study:   21 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Subject has signed informed consent.
  • Females at least 21 years of age
  • Five or more urge urinary incontinence episodes on a three-day voiding diary. Urge incontinence episodes will be determined based on voiding diary and subject indication of coincident urge symptoms, allowing self-characterization of incontinence type.
  • Urge predominant (urge >50% of total incontinent episodes) urinary incontinence based on self-reported characterization of incontinent episodes on diary.
  • Demonstrated ability (or have caregiver demonstrate ability) to perform clean intermittent self-catheterization in the event that this would be required.
  • Request for treatment for urge urinary incontinence. The patient may have tried other non-pharmacologic treatments for urge incontinence, such as supervised behavioral therapy, supervised physical therapy, unsupervised physical therapy, supervised biofeedback, and transvaginal electrical stimulation.
  • Subject has undergone 3-week washout period if subject were on anticholinergic therapy prior to enrollment.
  • Subject is able to complete all study related items and interviews.

Exclusion Criteria:

  • Any previous therapy with trospium chloride, solifenacin, or darifenacin
  • Failed three or more anticholinergic drugs.
  • Contraindication to anticholinergic therapy, specifically with solifenacin or trospium.
  • Current symptomatic urinary tract infection that has not resolved prior to randomization.
  • Uncontrolled narrow-angle glaucoma
  • Gastric retention
  • Baseline need for intermittent self catheterization
  • PVR >150ml on 2 occasions with void(s) of greater than 150ml
  • Surgical treatment for stress incontinence (sling, Burch or urethral injection) or pelvic organ prolapse recommended or planned at enrollment by study investigator(s).
  • Any prior intra-detrusor botulinum toxin A injections
  • Previous or currently implanted neuromodulation (sacral or tibial).
  • Surgically altered detrusor muscle, such as augmentation cystoplasty.
  • Known allergy to botulinum toxin A.
  • Women with known neurologic disease believed to potentially affect urinary function (Multiple sclerosis, spinal cord injuries, myasthenia gravis, Charcot-Marie-Tooth disease).
  • Known allergy to lidocaine.
  • Currently pregnant or lactating patients or patients planning pregnancy within the next year.
  • Sexually active premenopausal women with a uterus who have either not had a tubal ligation or are not on a medically approved form of contraception for at least 3 months prior to and throughout the duration of the study.
  • Cystoscopic findings that preclude injection, in the opinion of the investigator.
  • Current or prior bladder malignancy.
  • In the opinion of the investigator, inability to understand diary instructions and complete 3-day voiding diary.
  • Subjects who are on anticoagulant therapy,excluding aspirin
  • Subject has been previously diagnosed with interstitial cystitis or chronic pelvic pain syndrome.
  • Subjects with hematuria who have not undergone a clinically appropriate evaluation.
  • Subjects taking aminoglycosides at the time of injection.
  • Serum creatinine level greater than twice the upper limit of normal within the previous year.
  • Two or more hospitalizations for medical conditions in the previous year.
  • Plans to move out of area in the next 6 months.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01166438

United States, Alabama
The University of Alabama at Birmingham
Birmingham, Alabama, United States, 35249
United States, California
USCD Medical Center
La Jolla, California, United States, 92037
Kaiser Permanente
San Diego, California, United States, 92037
United States, Illinois
Loyola University Medical Center
Maywood, Illinois, United States, 60153
United States, Michigan
Oakwood Hospital
Dearborn, Michigan, United States, 48124
Beaumont Hospital
Royal Oak, Michigan, United States, 48073
United States, North Carolina
Duke University
Durham, North Carolina, United States, 27710
United States, Ohio
Cleveland Clinic
Cleveland, Ohio, United States, 44195
United States, Pennsylvania
Magee-Women's Hospital
Pittsburgh, Pennsylvania, United States, 15213
United States, Texas
University of Texas Southwestern Medical Center
Dallas, Texas, United States, 75390
United States, Utah
University of Utah
Salt Lake City, Utah, United States, 84132
Sponsors and Collaborators
NICHD Pelvic Floor Disorders Network
Office of Research on Women's Health (ORWH)
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Study Chair: Anthony Visco, MD Duke University
  More Information

Additional Information:
Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: dwallace, Project Director, RTI International Identifier: NCT01166438     History of Changes
Other Study ID Numbers: PFDN 17
2U01HD041249 ( US NIH Grant/Contract Award Number )
2U10HD041250 ( US NIH Grant/Contract Award Number )
2U10HD041261 ( US NIH Grant/Contract Award Number )
2U10HD041267 ( US NIH Grant/Contract Award Number )
1U10HD054136 ( US NIH Grant/Contract Award Number )
1U10HD054214 ( US NIH Grant/Contract Award Number )
1U10HD054215 ( US NIH Grant/Contract Award Number )
1U10HD054241 ( US NIH Grant/Contract Award Number )
Study First Received: July 19, 2010
Last Updated: September 27, 2013

Keywords provided by NICHD Pelvic Floor Disorders Network:
overactive bladder

Additional relevant MeSH terms:
Urinary Incontinence
Urinary Bladder, Overactive
Urinary Incontinence, Urge
Urination Disorders
Urologic Diseases
Lower Urinary Tract Symptoms
Urological Manifestations
Signs and Symptoms
Behavioral Symptoms
Elimination Disorders
Mental Disorders
Urinary Bladder Diseases
Botulinum Toxins
Botulinum Toxins, Type A
Trospium chloride
Solifenacin Succinate
Cholinergic Antagonists
Acetylcholine Release Inhibitors
Membrane Transport Modulators
Molecular Mechanisms of Pharmacological Action
Cholinergic Agents
Neurotransmitter Agents
Physiological Effects of Drugs
Autonomic Agents
Peripheral Nervous System Agents processed this record on April 26, 2017