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Study identifier: NCT07601646 Synced from ClinicalTrials.gov · July 29, 2026
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A Single-Arm, Dose Escalation of an Intraurethral Alprostadil Paste for Erectile Dysfunction

Condition: Erectile Dysfunction (ED) · Erectile Dysfunctions · Erectile Function  ·  Sponsor: Ryan Flannigan, MD

PhasePhase 2
Planned participants83
Who can joinMale, 21 Years to 75 Years
Healthy volunteersNo

About this study

This is a single arm dose escalation trial of a mucoadhesive intraurethral polymer suspension of alprostadil (ST-04) and will investigate the efficacy of 3 dose levels of ST-04 in adult males with a clinical diagnosis of Erectile Dysfunction (ED). This study aims to determine if ST-04, with or without sildenafil, will improve erectile function (EF) compared to baseline. Participants in this study will receive ST-04, a new formulation containing the vasodilator, alprostadil which is known to be an effective drug in treating erectile dysfunction. ST-04 will be dispersed along the urethra, forming a hydrogel which adheres to the lining of the urethra with the goal of penile tumescence and erection. Participants may receive up to 3 dose level escalations of ST-04 over a 12-week period, for a total of up to 11 administrations of ST-04. Dose escalation may also be done with and without sildenafil.

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

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Locations (1)

Vancouver Prostate CentreVancouver, British Columbia, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT07601646