← Eichor
Study identifier: NCT07391579 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Daily Tadalafil 5 mg Combined With On-Demand Sildenafil 100 mg for Treatment of Erectile Dysfunction in PDE-5I Non Responder Patients

Condition: Erectile Dysfunctions  ·  Sponsor: Mansoura University

PhasePhase 4
Planned participants500
Who can joinMale, 21 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this clinical trial is to evaluate whether daily dosing with tadalafil 5 mg combined with on-demand sildenafil 100 mg can improve erectile function in men with erectile dysfunction (ED) who do not respond to PDE5 inhibitor alone. The main questions it aims to answer are: * Does the combination of daily tadalafil and on-demand sildenafil lead to a greater improvement in erectile function (measured by the IIEF-EF domain) compared with on-demand sildenafil alone? * Is the combination therapy safe and well tolerated in this patient population? Researchers will compare: * Group A: Daily tadalafil 5 mg plus on-demand sildenafil 100 mg * Group B: Daily placebo plus on-demand sildenafil 100 mg to determine whether the combination regimen provides superior improvement in erectile function and patient satisfaction. Participants will: * Undergo baseline assessment including medical history, physical examination, and laboratory tests. * Be randomly assigned to one of the two treatment groups. * Take the assigned medications for 12 weeks. * Complete follow-up evaluations at 4, 8, and 12 weeks, including: International Index of Erectile Function (IIEF-15) questionnaire Erection Hardness Score (EHS) assessment Reporting of any adverse effects

This description comes directly from the study's public registry record.

Talk to the study team

Ahmed A Shokeir+2, professor of Urology  ·  +201121102929  ·  ahmed.shokeir@hotmail.com

Always discuss trial participation with your own doctor first.

Locations (11)

Urology and Nephrology Center, Mansoura UniversityAl Mansurah, Dakahlia Governorate, EgyptRecruiting
Faculty of medicine, Alexandria UniversityAlexandria, EgyptRecruiting
Faculty of medicine, Aswan universityAswān, EgyptRecruiting
Faculty of Medicine - Assiut UniversityAsyut, EgyptRecruiting
Cairo University, faculty of medicineCairo, EgyptRecruiting
Faculty of medicine, Ain Shams UniversityCairo, EgyptRecruiting
Faculty of medicine, Azhar UniversityCairo, EgyptRecruiting
Faculty of medicine, october 6 UniveristyCairo, EgyptRecruiting
Faculty of medicine, Luxor universityLuxor, EgyptRecruiting
faculty of medicine, Minya UniversityMinya, EgyptRecruiting
Faculty of medicine, Tanta UniversityTanta, EgyptRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT07391579