Efficacy and Tolerability of DITROPAN XL (Oxybutynin Chloride) Versus DETROL LA (Tolterodine Tartrate) in Treatment of Overactive Bladder

Urinary Incontinence Clinical Trial

Official title:

Comparison of the Efficacy and Tolerability of DITROPAN XL and DETROL LA in the Treatment of Overactive Bladder

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00293839
• Other study ID #: CR004570
• Status: Completed
• Phase: Phase 3
• First received: February 16, 2006
• Last updated: December 7, 2010
• Est. completion date: December 2002

Study information

• Verified date: December 2010
• Source: Alza Corporation, DE, USA
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

The purpose of this study is to compare the efficacy of DITROPAN® XL (oxybutynin chloride) Extended-Release Tablets and DETROL® LA (tolterodine tartrate extended-release capsules) in the reduction of urge urinary incontinence episodes during a 12-week treatment period in patients with overactive bladder. The secondary objective is to compare the tolerability of DITROPAN® XL (oxybutynin chloride) and DETROL® LA (tolterodine tartrate) during a 12-week treatment period.

Description:

The objective of this study is to compare the efficacy and tolerability of DITROPAN® XL 10 mg once-daily and DETROL® LA 4 mg once-daily in the reduction of urge urinary incontinence episodes in female patients with overactive bladder. This is a multicenter, randomized, double-blind, parallel-group study with two active treatments. Screened patients are qualified for the study based on information obtained from seven consecutive 24-hour urinary diaries completed during the Baseline Week, and other eligibility criteria. Qualifying patients receive 12 weeks of treatment with DITROPAN® XL or DETROL® LA, with clinical visits at the end of Weeks 2, 4, 8, and 12.

Safety evaluations during the study include the collection of adverse events, laboratory tests including blood chemistry and urinalysis, physical examinations, vital signs (blood pressure and heart rate) and post-void residual urine volume. Over-encapsulated DITROPAN® XL, 10 mg tablets once-daily by mouth or over-encapsulated DETROL® LA, 4 mg capsules once daily by mouth. The treatment phase of the study runs for 12 weeks.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 790
• Est. completion date: December 2002
• Accepts healthy volunteers: No
• Gender: Female
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Participants who are able to differentiate urinary incontinence episodes associated with urgency from urinary incontinence episodes not associated with urgency

• during the 7 day baseline period have 21 to 60 urge urinary incontinence (Urge-UI) episodes, a greater number of Urge-UI episodes than urinary incontinence not associated with urge, and an average of 10 or more voids per 24 hours

• are in good general health as determined by medical history, physical examination (general, genital, pelvic, and rectal), laboratory tests and urinalysis

• if taking antihypertension medication, must be on a stable dose

• and if of child-bearing potential, practicing an acceptable method of birth control, and must have a negative pregnancy test at Visit 2 and Visit 3

Exclusion Criteria:

• Participants with known, treatable genitourinary conditions (identified on history or on examination) that may cause incontinence (e.g., urinary tract infection, interstitial cystitis, urinary tract obstruction, urethral diverticulum, bladder tumor, bladder stone)

• have given birth or have had pelvic, vaginal or bladder surgery less than 6 months before study enrollment

• with a second post-void residual urine volume > 150 mL at the time of screening (determined by abdominal ultrasound)

• with significant medical problems or other organ abnormality that places them at risk from participating in the study or at a significant risk of developing complete urinary retention

• with significant impairment of the liver or kidneys as determined by laboratory assessments or hematuria (red blood cells in microscopic urinalysis)

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double-Blind, Primary Purpose: Treatment

Related Conditions & MeSH terms

• Urinary Bladder, Overactive
• Urinary Incontinence

Intervention

Drug:
• oxybutynin chloride

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
Alza Corporation, DE, USA

References & Publications (1)

Diokno AC, Appell RA, Sand PK, Dmochowski RR, Gburek BM, Klimberg IW, Kell SH; OPERA Study Group. Prospective, randomized, double-blind study of the efficacy and tolerability of the extended-release formulations of oxybutynin and tolterodine for overactiv — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	The number of weekly urge urinary incontinence (Urge-UI) episodes at week 12, adjusted for the baseline value
Secondary	The number of total urinary incontinence (Total-UI) episodes at week 12; Void frequency at week 12; Urge-UI ,Total-UI, and Void frequence at weeks 2, 4, and 8; tolerability of the treatments during the 12-week treatment phase.