Status:

NOT_YET_RECRUITING

Combination Therapy of Tadalafil 2.5mg Plus Sildenafil 25mg Versus Tadalafil 5 mg Monotherapy for Treatment of Erectile Dysfunction: A Randomized, Placebo-Controlled Double-Blinded Cross-Over Study

Lead Sponsor:

Assiut University

Conditions:

Erectile Dysfunction

Eligibility:

MALE

18-60 years

Phase:

PHASE3

Brief Summary

Erectile dysfunction (ED) is characterized by the persistent inability to attain or sustain an erection adequate for satisfactory sexual intercourse. As one of the most common male sexual health disor...

Eligibility Criteria

Inclusion

  • -Men aged 18-70 years with a clinical diagnosis of erectile dysfunction (ED) for ≥3 months.
  • International Index of Erectile Function (IIEF-5) score ≤21.
  • Stable sexual relationship for ≥3 months.
  • Willingness to adhere to the study protocol and provide informed consent.
  • No prior use of PDE5 inhibitors within 4 weeks before enrollment.

Exclusion

  • -Severe cardiovascular disease (uncontrolled hypertension, recent MI/stroke).
  • Hypersensitivity to tadalafil, sildenafil, or any PDE5 inhibitor.
  • Severe hepatic/renal impairment (e.g., CrCl \<30 mL/min, Child-Pugh C).
  • Concomitant use of nitrates, strong CYP3A4 inhibitors (e.g., ritonavir, ketoconazole).
  • History of priapism, penile deformities, or radical prostatectomy.
  • Major psychiatric disorders affecting compliance.

Key Trial Info

Start Date :

October 1 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2026

Estimated Enrollment :

142 Patients enrolled

Trial Details

Trial ID

NCT07177326

Start Date

October 1 2025

End Date

December 1 2026

Last Update

September 24 2025

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