An interventional study of Flexible Ureteroscopy with Novel Flexible Ureteral Access Sheath and Mini-Percutaneous Nephrolithotomy in Renal Stone Disease, Renal Stones and Flexible Ureteroscopy, sponsored by Ain Shams University. Completed at 1 site in Egypt. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-10-29.
Sponsored by Ain Shams University · Not applicable, Interventional, and Treatment
The aim of the study is to compare the efficacy, safety, and patient outcomes of flexible ureteroscopy with a novel flexible ureteral access sheath and mini-percutaneous nephrolithotomy in the treatment of 2-3 cm lower calyceal renal stones.
324 studies on the registry are indexed under Nephrolithiasis; 90 are open to participants now.
This study's enrollment of 60 is below the median of 92 across 257 interventional studies indexed under Nephrolithiasis.
Browse Nephrolithiasis studies →Ain Shams University is the lead sponsor of 1,950 studies on the registry; 429 are open to participants now.
Of its 35 completed or terminated interventional studies of FDA-regulated products, 0 (0%) have results posted.
Counted across the registry records on this site, refreshed daily.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Procedure: Flexible Ureteroscopy with Novel Flexible Ureteral Access Sheath
Procedure: Mini-Percutaneous Nephrolithotomy
A novel flexible ureteral access sheath is placed through the ureter. Flexible ureteroscope is advanced through the sheath to the kidney. Holmium laser lithotripsy is used to fragment and remove the stone. Postoperative ureteral stent may be placed if required.
Percutaneous access to the kidney is obtained under fluoroscopic guidance. Tract dilation is performed, and a mini-nephroscope is introduced through 20 Fr access sheath. Stone is fragmented and removed using pneumatic or ultrasonic lithotripsy. Postoperative nephrostomy tube or stent may be placed as per surgeon's judgment.
Stone-free rate
It is defined as no residual stone fragments larger than 3 mm confirmed by imaging.
Time frame: two weeks
Plan to share: Yes
No publications or documents are linked to this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.