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Enhancing Conservative Treatment for Urge Incontinence (COMBO)

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ClinicalTrials.gov Identifier: NCT00223821
Recruitment Status : Completed
First Posted : September 22, 2005
Results First Posted : December 19, 2013
Last Update Posted : December 19, 2013
Sponsor:
Information provided by (Responsible Party):
VA Office of Research and Development ( US Department of Veterans Affairs )

Brief Summary:
The primary objective of this project is to evaluate whether enhancing drug therapy with components of behavioral training, including pelvic floor muscle rehabilitation, results in better outcomes than drug therapy alone for urge incontinence in community-dwelling women.

Condition or disease Intervention/treatment Phase
Urinary Incontinence Drug: Oxybutynin chloride, extended-release, individually-titrated Behavioral: Behavior Training Not Applicable

Detailed Description:
Urinary incontinence in women is a major problem with significant medical, psychological, and social consequences. Previous research on urge incontinence, a common form of incontinence, has demonstrated that behavioral and drug interventions are effective, but do not cure most patients. Thus there is a need to improve conservative treatment for urge incontinence in women. The primary objective of this project is to evaluate whether enhancing drug therapy with components of behavioral training, including pelvic floor muscle rehabilitation, results in better outcomes than drug therapy alone for urge incontinence in community-dwelling women. This project is a randomized controlled clinical trial. Sixty-four women with predominantly urge incontinence have been randomized. Stratification and blocked randomization procedures are used to assign a subject to 8 weeks of drug therapy alone or 8 weeks of drug therapy enhanced with components of behavioral training that can be administered in most any outpatient clinic. The drug therapy is extended release oxybutynin, a well-established pharmacologic agent with a state of the art drug delivery system that has the lowest rates of side-effect. The behavioral treatment is an innovative, comprehensive, behavioral training program, which includes pelvic floor muscle rehabilitation, teaching urge suppression and other skills to improve bladder control, and self-monitoring with bladder diaries. Bladder diaries completed by subjects before and after the treatment are used to calculate reduction in the frequency of incontinence. Secondary outcomes measures include a patient satisfaction questionnaire and three impact/quality of life measures (Incontinence Impact Questionnaire, Uro-Genital Distress Index, SF-12 Health Survey). The second objective of the study is to examine the cost-effectiveness of adding behavioral components to drug therapy. With the changing health care environment, there is increased concern with the costs of providing treatment. This project will compare the relative costs and value of combined intervention using the methods of cost-effectiveness analysis, the most widely adopted method for the economic evaluation of health interventions. The third objective of the study is to examine further the mechanisms by which these therapies reduce incontinence, including changes in bladder capacity, thresholds for bladder sensation, pelvic muscle strength, use of pelvic muscles in response to the sensation of urgency and frequency of urination. Pre-post changes in these parameters are measured to examine the effects of the treatment on these variables, and structural equation modeling will be used to examine whether changes in each of these measures are related to treatment outcome.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 166 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Enhancing Conservative Treatment for Urge Incontinence
Study Start Date : September 2003
Actual Primary Completion Date : November 2008
Actual Study Completion Date : December 2009

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Active Comparator: Drug Therapy Aone
Oxybutynin chloride, extended-release, individually-titrated
Drug: Oxybutynin chloride, extended-release, individually-titrated
Individually-titrated, extended-release oxybutynin chloride with management of side-effects.
Other Name: Ditropan XL

Experimental: Drug Therapy + Behavioral Training
Drug Therapy + Behavioral Training: Individually-titrated, extended-release oxybutynin chloride with management of side-effects. Behavioral training consists of teaching urge suppression strategies and pelvic floor muscle training.
Drug: Oxybutynin chloride, extended-release, individually-titrated
Individually-titrated, extended-release oxybutynin chloride with management of side-effects.
Other Name: Ditropan XL

Behavioral: Behavior Training
Behavioral training consists of teaching urge suppression strategies and pelvic floor muscle training.




Primary Outcome Measures :
  1. Change in Incontinent Episodes Immediately Post-treatment [ Time Frame: Baseline and immediately post-treatment - week 8 ]
    Percent change from baseline in weekly frequency of incontinent episodes immediately post-treatment, derived from baseline and week 8 seven-day bladder diaries.


Secondary Outcome Measures :
  1. Change in Incontinent Episodes at 12-month Follow-up [ Time Frame: Baseline and 12 months post-treatment ]
    Percent change from baseline in weekly frequency of incontinent episodes at 12-months post-treatment, derived from baseline and 12-month seven-day bladder diaries



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Ages Eligible for Study:   19 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

Participants in this study were ambulatory, community-dwelling women (veterans and nonveterans) with persistent urge or predominantly urge incontinence.

Participants must:

  1. Be ambulatory.
  2. Be able to come to the clinic for treatment.
  3. Report urge incontinence.
  4. Report incontinence occurring at least twice per week on average.
  5. Report incontinence persisting for at least three months.
  6. Not have received behavioral therapy in the University of Alabama at Birmingham (UAB) Continence Clinic or Department of Veterans Affairs (VA) Continence Clinic.
  7. In the clinical interview, the subject must report involuntary loss of urine associated with a strong desire to void and that the condition has persisted for at least three months.
  8. At least two urge accidents on the 7-day baseline bladder diary, and the number of urge accidents must exceed the number of other types of accidents.
  9. On urodynamic evaluation, there must be cystometric evidence of bladder dysfunction, either: detrusor instability or maximal cystometric capacity is less than 400 ml.

Exclusion Criteria:

  1. Continual leakage.
  2. Urinary tract infection (defined as growth of greater than 10,000 colonies per ml of a urinary pathogen on urine culture).
  3. Fecal impaction.
  4. Uncontrolled metabolic problem.
  5. Post-void residual volume > 150 ml.
  6. Hematuria on microscopic examination in the absence of infection. A urologic consultation will be recommended and enrollment will depend on agreement between the urologist and geriatrician (co-PI) that entry into treatment protocol is not contraindicated.
  7. Severe uterine prolapse (prolapse reaching the vaginal introitus).
  8. Decompensated congestive heart failure, diagnosed by history or physical exam.
  9. Impaired mental status. (<24 on Folstein's Mini-Mental State Exam).
  10. Uncontrolled narrow angle glaucoma.
  11. Gastric retention (by medical history).
  12. Hypersensitivity to oxybutynin.
  13. Current use of anticholinergic agents for detrusor instability. Subjects on these medications will be asked to discontinue them for the duration of the study. Evaluation will be delayed until the drug(s) have been discontinued for 2 weeks.
  14. If on diuretic, dose stable for less than three months.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00223821


Locations
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United States, Alabama
Birmingham VA Medical Center
Birmingham, Alabama, United States, 35233
Sponsors and Collaborators
US Department of Veterans Affairs
Investigators
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Principal Investigator: Kathryn L. Burgio, PhD MA BA Birmingham, Alabama VA Medical Center
Publications of Results:
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Responsible Party: US Department of Veterans Affairs
ClinicalTrials.gov Identifier: NCT00223821    
Other Study ID Numbers: B2899-R
First Posted: September 22, 2005    Key Record Dates
Results First Posted: December 19, 2013
Last Update Posted: December 19, 2013
Last Verified: October 2013
Keywords provided by VA Office of Research and Development ( US Department of Veterans Affairs ):
Behavior Therapy
Behavioral Medicine
Behavioral Research
Behavioral Sciences
Combined Modality Therapy
Drug Therapy
Overactive bladder
Treatment Outcome
Urge incontinence
Urinary incontinence
Additional relevant MeSH terms:
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Urinary Incontinence
Enuresis
Urinary Incontinence, Urge
Urination Disorders
Urologic Diseases
Lower Urinary Tract Symptoms
Urological Manifestations
Behavioral Symptoms
Elimination Disorders
Mental Disorders
Oxybutynin
Parasympatholytics
Autonomic Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Muscarinic Antagonists
Cholinergic Antagonists
Cholinergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Urological Agents