Skip to content

Randomized Controlled Trial Comparing Low Dose Tadalafil Versus Solifenacin For Management of Overactive Bladder in Women: Multicenter Egyptian National Study

Randomized Controlled Trial Comparing Low Dose Tadalafil Versus Solifenacin For Management of Overactive Bladder in Women: Multicenter Egyptian National Study (WoMEN'S)

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07416968
Acronym
WoMEN'S
Enrollment
480
Registered
2026-02-18
Start date
2025-09-01
Completion date
2026-12-01
Last updated
2026-02-18

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

Conditions

Overactive Bladder (OAB), Overactive Bladder Syndrome

Keywords

Overactive Bladder, OAB, Tadalafil, Solifenacin, Low dose tadalafil, Urgency, frequency, Urge Urinary Incontinence

Brief summary

Researchers are studying two medicines to see which works better for women with overactive bladder (OAB). OAB causes sudden urges to urinate, frequent bathroom trips, and sometimes leakage. Women who join the study will be randomly placed into one of two groups: One group will take tadalafil (5 mg), a medicine taken once a day. The other group will take solifenacin (5 mg), a common treatment for OAB, also taken once a day. The study will last 12 weeks. Participants will keep a bladder diary, answer short questionnaires, and have simple urine flow and bladder tests at several visits. The main goal is to find out which medicine lowers OAB symptoms more, such as urgency and frequent urination. Researchers will also look at quality of life, bladder function, and side effects. Women aged 18 to 75 years with OAB symptoms for at least 3 months may be able to take part.

Interventions

Tadalafil 5 mg orally once daily for the duration of 12 weeks

solifenacin succinate 5 mg orally once daily for the duration of 12 weeks

Sponsors

Mansoura University
Lead SponsorOTHER
Cairo University
CollaboratorOTHER
Ain Shams University
CollaboratorOTHER
Alexandria University
CollaboratorOTHER
Zagazig University
CollaboratorOTHER_GOV
Tanta University
CollaboratorOTHER
Menoufia University
CollaboratorOTHER
Assiut University
CollaboratorOTHER
Sohag University
CollaboratorOTHER
South Valley University
CollaboratorOTHER
Beni-Suef University
CollaboratorOTHER
Minia University
CollaboratorOTHER
Aswan University
CollaboratorOTHER

Study design

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

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* OAB symptoms persisting for ≥3 months * OAB Symptom Score (OABSS) \> 5 and urgency sub-score of OABSS ≥ 2 * Ability and willingness to provide informed consent.

Exclusion criteria

* Active urinary tract infection. * Stress urinary incontinence (SUI) as primary diagnosis, or mixed urinary incontinence with predominant SUI * Pelvic organ prolapse stage ≥II according to POP-Q system. * History of pelvic radiation. * History of neurosurgical interventions. * Pregnancy or breastfeeding. * Neuropathic diseases affecting the lower urinary tract. * History of genitourinary malignancy. * Post-void residual urine (PVR) \> 150 ml. * Vesical or lower ureteric stones. * Uncontrolled diabetes mellitus (HbA1c \> 7). * Any psychological or psychiatric disorders. * Contraindications or allergy to the used medications. * History of surgeries in the urinary bladder. * History of pelvic surgeries within 6 months. * Voiding dysfunctions.

Design outcomes

Primary

MeasureTime frameDescription
Overactive Bladder Symptom Score percentage reductionfrom enrollment to 12 weeksself administered questionnaire with minimum score of 0 and maximum score of 15, higher score means worse symptoms. Three points reduction in the total OABSS is determined as the minimal threshold for a meaningful change

Secondary

MeasureTime frameDescription
Changes in frequnecy episodes in three-day voiding diaryfrom enrollment to follow up visits at 4,8 and 12 weeksChanges in the mean number of voiding episodes per days as measure by a self administered three-day urinary diary
changes in International Consultation on Incontinence Questionnaire- Urinary Incontinence-Short Form (ICIQ-UI-SF) scorefrom enrollment to follow up visits at 4,8 and 12 weeksself administered questionnaire with minimum score of 0 and maximum score of 21, the higher score, the worse the symptoms
changes in Overactive bladder quality of life questionnaire (ICIQ-OABqol)All follow up visits at 4, 8, and 12 weekself administered questionnaire with minimum score of 25 and maximum score of 160 , higher score indicated worse effect on the quality of life
Changes in number of nocturia episodes on three-day urinary diaryfrom enrollment to follow up visits at 4,8 and 12 weekschanges in the mean number of nocturia episodes per night(waking up in the middle of the night to void) as measured by a self-administered three-day voiding diary
Changes in number of urgency episodes on three-day urinary diaryfrom enrollment to follow up visits at 4,8 and 12 weeksChanges in the mean number of urgency episodes per day (strong desire to void that cannot be postponed or withheld) as measured by a self administered three-day voiding diary
Changes in number of incontinence episodes on three-day voiding diaryfrom enrollment to follow up visits at 4,8 and 12 weeksChanges in number of incontinence episodes per day (involuntary leakage of urine) as measured by a self administered three-day urinary diary

Countries

Egypt

Contacts

CONTACTMohammed Hegazy, M.D of Urology
mhalem88@yahoo.com+201028299216
CONTACTYahya H ElMorsy, MSc of Urology
hossam.yahya@yahoo.com+201100311999
STUDY_DIRECTORAhmed A Shokeir, professor of urology

Urology & Nephrology Center, Masnoura university, Egypt

STUDY_CHAIRSherif Mourad, Professor of Urology

Ain Shams University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 19, 2026