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Clinical trial

Long-Term Safety Outcomes of Ureteral Access Sheath-Assisted Versus Sheathless Retrograde Intrarenal Surgery for Renal Stones ≤20 mm in Non-Prestented Patients: A Retrospective Comparative Cohort Study With Active Follow-up

NCT07767773 is registered in ClinicalTrials.gov with Al-Azhar University as lead sponsor.

NCT NCT07767773
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Registry record

As filed in ClinicalTrials.gov.

Title
Long-Term Safety Outcomes of Ureteral Access Sheath-Assisted Versus Sheathless Retrograde Intrarenal Surgery for Renal Stones ≤20 mm in Non-Prestented Patients: A Retrospective Comparative Cohort Study With Active Follow-up
Lead sponsor
Al-Azhar University
Phase
Observational
Overall status
Recruiting
Start date
August 16, 2026
Completion date
December 25, 2027
Enrollment
1,200 (estimated)
Sites
1

Conditions

As the registry lists them; a condition with its own page is linked.

hydronephrosis, renal stone disease, retrograde intrarenal surgery, ureteral access sheath, ureteral stricture, urolithiasis