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Study identifier: NCT07623876 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Tamsulosin and Intraureteral Aminophylline for Ureteral Access During RIRS

Condition: Renal Stones · Retrograde Intrarenal Surgery · Ureteral Access Sheath Placement  ·  Sponsor: Beni-Suef University

PhasePhase 2
Planned participants322
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This multicenter randomized controlled trial will evaluate whether preoperative tamsulosin, intraureteral aminophylline, or their combination can improve ureteral access during primary retrograde intrarenal surgery for renal stones. Adult patients with unilateral renal stones measuring 2 cm or less and planned placement of a 10/12 Fr ureteral access sheath will be randomly assigned to one of four groups in a 2x2 factorial design. Participants will receive either tamsulosin or placebo for 7 days before surgery and either intraureteral aminophylline or intraureteral placebo during the procedure. The main outcome will be successful first-attempt placement of the planned 10/12 Fr ureteral access sheath after study solution instillation, without active ureteral dilatation, sheath downsizing, prestenting with deferred surgery, or abandonment of the procedure due to access failure.

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

Talk to the study team

Hany F Badawy, MD  ·  +201149525028  ·  Hanyfathy86@gmail.com@GMAIL.COM

Always discuss trial participation with your own doctor first.

Locations (3)

Department of Urology- Aswan University HospitalsAswān, Aswan Governorate, EgyptRecruiting
Department of Urology- Beni-Suef University HospitalsBanī Suwayf, Beni Suweif Governorate, EgyptRecruiting
Urology Department- Sohag university HospitalSohag, Sohag Governorate, EgyptRecruiting

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Source record: clinicaltrials.gov/study/NCT07623876