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Study identifier: NCT07642505 Synced from ClinicalTrials.gov · July 28, 2026
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L-Citrulline and Tadalafil for Mild to Moderate Erectile Dysfunction

Condition: Erectile Dysfunction  ·  Sponsor: Beni-Suef University

PhasePhase 4
Planned participants133
Who can joinMale, 30 Years to 70 Years
Healthy volunteersNo

About this study

Erectile dysfunction is a common male sexual health problem that may affect quality of life and sexual relationships. Tadalafil 5 mg once daily is an established oral treatment for erectile dysfunction. L-citrulline is an oral nitric oxide pathway supplement that may improve erectile function by increasing L-arginine availability. This randomized trial will compare three oral treatment regimens in men with mild to moderate erectile dysfunction: L-citrulline 1500 mg/day, tadalafil 5 mg/day, and the combination of L-citrulline 1500 mg/day plus tadalafil 5 mg/day. Participants will receive treatment for 12 weeks and will be followed at baseline, week 4, week 8, and week 12. The primary outcome will be the change in the International Index of Erectile Function-Erectile Function domain score from baseline to 12 weeks. Secondary outcomes will include changes in IIEF-5/SHIM score, Erection Hardness Score, SEP diary outcomes, treatment adherence, adverse events, and treatment discontinuation.

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

Talk to the study team

Hany F Badawy, MD  ·  +201149525028  ·  HANYFATHY86@GMAIL.COM

Always discuss trial participation with your own doctor first.

Locations (1)

Department of Urology- Beni-Suef University HospitalsBanī Suwayf, Beni Suweif Governorate, EgyptRecruiting

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Source record: clinicaltrials.gov/study/NCT07642505