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RECRUITING
NCT07391579
PHASE4

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

Sponsor: Mansoura University

View on ClinicalTrials.gov

Summary

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

Official title: Daily Tadalafil 5 mg Combined With On-Demand Sildenafil 100 mg for Treatment of Erectile Dysfunction in PDE-5I Non Responder Patients: A Multicenter Randomized, Double-Blind, Placebo-Controlled Trial

Key Details

Gender

MALE

Age Range

21 Years - Any

Study Type

INTERVENTIONAL

Enrollment

500

Start Date

2025-12-01

Completion Date

2027-06

Last Updated

2026-02-06

Healthy Volunteers

No

Interventions

DRUG

Tadalafil 5 mg & Sildenafil 100mg

daily dosing of Tadalafil 5 mg combined with on demand Sildenafil 100mg

DRUG

Sildenafil 100mg & placebo

Daily Placebo combined with on demand Sildenafil 100mg

Locations (11)

Urology and Nephrology Center, Mansoura University

Al Mansurah, Dakahlia Governorate, Egypt

Faculty of medicine, Alexandria University

Alexandria, Egypt

Faculty of medicine, Aswan university

Aswān, Egypt

Faculty of Medicine - Assiut University

Asyut, Egypt

Cairo University, faculty of medicine

Cairo, Egypt

Faculty of medicine, Ain Shams University

Cairo, Egypt

Faculty of medicine, Azhar University

Cairo, Egypt

Faculty of medicine, october 6 Univeristy

Cairo, Egypt

Faculty of medicine, Luxor university

Luxor, Egypt

faculty of medicine, Minya University

Minya, Egypt

Faculty of medicine, Tanta University

Tanta, Egypt