Clinical trials: Ureteral Access Sheath
Renal Calculi
Using Retrograde Intrarenal Surgery for Managing Staghorn Renal Stones.
This prospective, randomized study is comparing the safety and efficacy of using two types of ureteral access sheaths in managing staghorn renal stones by retrograde intrarenal surgery.
- Trial name
- NCT07342361
- Testing
- Retrograde intrarenal surgery
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Helwan University
Urolithiasis, Lithotripsy
A Study on the Application of NE Irrigation Fluid for Hemostasis in Flexible Ureteroscopic Lithotripsy: A Prospective Single-arm Interventional Study of Upper Urinary Tract Calculi.(NE: Norepinephrine)
Urinary stone disease is globally prevalent with rising incidence and recurrence, imposing heavy socioeconomic burdens. Flexible ureteroscopy has advanced stone treatment.
- Trial name
- NCT07786844
- Testing
- Using irrigation fluid with a certain concentration of norepinephrine
- Where
- China
- Volunteers
- 55 people
- Sponsor
- Geriatric Hospital of Nanjing Medical University
Kidney Stones
Steerable vs Conventional FANS for <2cm Lower Pole Stone Treatment: SCULPT Trial
This multicenter, randomized, controlled superiority trial (the SCULPT trial) aims to compare the efficacy and safety of a novel steerable flexible and navigable suction ureteral access sheath (FANS) versus the conventional FANS…
- Trial name
- NCT06898216
- Testing
- Steerable FANS, Conventional FANS
- Where
- China
- Volunteers
- 400 people
- Sponsor
- The First Affiliated Hospital of Guangzhou Medical University
Renal Stone Disease, Ureteral Stricture
Long-term Safety of UAS-assisted vs Sheathless RIRS in Non-prestented Patients
This retrospective comparative cohort study will include adult patients who underwent primary RIRS for renal stones ≤20 mm at Al-Azhar University Hospitals between January 2020 and December 2025.
- Conditions
- Renal Stone Disease, Ureteral Stricture, Hydronephrosis, Urolithiasis
- Trial name
- NCT07767773
- Testing
- Ureteral access sheath-assisted RIRS, Sheathless RIRS
- Where
- Egypt
- Volunteers
- 1,200 people
- Sponsor
- Al-Azhar University
Urolithiasis, Ureteral Injury
Effect of Preoperative Alpha-blockers on Successful Insertion Ureteral Access Sheath and Reduce Ureteral Injury in Non-prestented Patients During RIRS. Assessment of Factors for Successful Ureteral Access Sheath Insertion.
The aim of the study is to evaluate the effect of preoperative taking alpha-blockers (tamsulosin or silodosin) on the success rate of ureteral access sheath (UAS) insertion and the degree of ureteral injury during RIRS in…
- Conditions
- Urolithiasis, Ureteral Injury, Ureteral Access Sheath, Retrograde Intrarenal Surgery
- Trial name
- NCT07202923
- Where
- Russia
- Volunteers
- 140 people
- Sponsor
- St. Luke's Clinical Hospital, Russia
Stone, Kidney
FANS-Optimization of Irrigation and Suction Parameters in RIRS
Kidney stones are commonly treated with flexible ureteroscopy, a minimally invasive procedure in which a small scope is passed through the urinary tract to reach and treat stones in the kidney.
- Trial name
- NCT07840482
- Testing
- ClearPetra™ FANS - High-Flow Setting, ClearPetra™ FANS - Moderate-Flow Setting
- Volunteers
- 100 people
- Sponsor
- University of Kansas Medical Center
Kidney Calculi, Kidney Stones
Comparison of Vacuum-Assisted and Conventional Ureteral Access Sheath in Retrograde Intrarenal Surgery
This study aims to compare the efficacy and safety, the ratio of stone-free rates, and complications of two types of access sheaths used in retrograde intrarenal surgery to treat upper urothelial stones.
- Trial name
- NCT06684756
- Testing
- Retrograde intrarenal surgery
- Where
- Turkey (Türkiye)
- Volunteers
- 150 people
- Sponsor
- Namik Kemal University
Renal Stone
Effect of Preoperative Silodosin on Feasibility of Ureteral Access Sheath Insertion
The ureteral access sheath (UAS) is an ancillary device widely used by urologists to facilitate fast, repeatable, and safe access to ureters and collecting systems; improve visibility; reduce the risk of infection by reducing…
- Trial name
- NCT05833386
- Testing
- Ureteral access sheath placement during flexible ureteroscope for renal stones
- Where
- Egypt
- Volunteers
- 2,000 people
- Sponsor
- Al-Azhar University
Kidney Stone
Intrarenal Pressure Monitoring Via Flexible and Navigable Suction Ureteral Access Sheath in Retrograde Intrarenal Surgery
This study evaluates the use of a novel intrarenal pressure (IRP)-monitoring flexible and navigable suction ureteral access sheath (FANS) in retrograde intrarenal surgery (RIRS) for renal stones.
- Trial name
- NCT06729801
- Testing
- IRP-Monitoring Flexible and Navigable Suction Ureteral Access Sheath (FANS), Conventional FANS
- Where
- China
- Volunteers
- 100 people
- Sponsor
- The First Affiliated Hospital of Guangzhou Medical University
Urolithiasis
Differences in Urine NGAL Levels in Patients Undergoing RIRS With or Without Ureteral Access Sheath
This study will include patients aged between 18 and 65 who will undergo retrograde infrarenal surgery (RIRS) due to renal stone(s).
- Trial name
- NCT02485002
- Testing
- RIRS with ureteral access sheath, RIRS without ureteral access sheath
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Selcuk University
Kidney Calculi, Nephrolithiasis
Comparison of Suction and Conventional Ureteral Access Sheaths in Kidney Stone Surgery
The goal of this observational study is to compare conventional and suction (aspiration) ureteral access sheaths used during retrograde intrarenal surgery (RIRS) in adults with kidney stones.
- Trial name
- NCT07866209
- Testing
- Conventional Ureteral Access Sheath, Suction Ureteral Access Sheath
- Where
- Turkey (Türkiye)
- Volunteers
- 160 people
- Sponsor
- Antalya Health Sciences University
Kidney Calculi, Renal Calculi
Sheathless, Traditional, and Suction Access Sheath RIRS for Renal Stones ≤2 cm
This completed randomized clinical study was designed to compare three different techniques of retrograde intrarenal surgery (retrograde intrarenal surgery) for the treatment of kidney stones that are 2 centimeters or smaller.
- Conditions
- Kidney Calculi, Renal Calculi, Urolithiasis, Nephrolithiasis
- Trial name
- NCT07289230
- Testing
- Traditional ureteral access sheath retrograde intrarenal surgery, Suction ureteral access sheath retrograde intrarenal surgery, Sheathless retrograde intrarenal surgery
- Where
- Egypt
- Volunteers
- 90 people
- Sponsor
- Ain Shams University
Flexible Ureteroscopy, Ureteral Access Sheath
Flexible Ureteroscopy With and Without Ureteral Access Sheath in Treatment of Large Renal Stones
The aim of this study is to evaluate the flexible ureteroscope (FURS) technique with and without ureteral access sheath (UAS).
- Conditions
- Flexible Ureteroscopy, Ureteral Access Sheath, Large Renal Stones
- Trial name
- NCT06122129
- Testing
- Flexible ureteroscope with ureteral access sheath, Flexible ureteroscope without ureteral access sheath
- Where
- Egypt
- Volunteers
- 84 people
- Sponsor
- New Valley University
Renal Calculi
FANS vs Standard Ureteral Access Sheath in fURS
This is a prospective, interventional single blinded, randomized, single-center study designed to compare the efficacy of a ureteral access sheath with integrated suction (FANS) versus a standard ureteral access sheath (UAS) in…
- Trial name
- CLEAR-URS (NCT07463157)
- Testing
- Standard ureteral access sheath, Flexible and Navigable Suction (FANS) Ureteral Access Sheath
- Where
- Italy
- Volunteers
- 134 people
- Sponsor
- IRCCS San Raffaele
Ureteroscopy, Urolithiasis
Disposable 7.5Fr Electronic Flexible Ureteroscope Combined 10Fr Ureteral Access Sheath for Treatment of Renal Stone <2cm
Observation efficacy and safety of disposable f7.5 electronic flexible ureteroscope combined f10 ureteral guide sheath for treatment of renal stone <2cm.
- Trial name
- NCT06491524
- Testing
- Using disposable 7.5Fr electronic flexible ureteroscope combined 10Fr ureteral access sheath to treat renal stone <2cm
- Where
- China
- Volunteers
- 23 people
- Sponsor
- Ningbo No. 1 Hospital
Urolithiasis
The Effect of Different Body Positions and Channel Sheaths on RIRS
Retrograde flexible ureteroscopy (RIRS) is currently the first-line treatment for renal stones < 2cm. Lower pole renal stones(LPS) are a difficult problem for urologists.
- Trial name
- NCT06438497
- Testing
- RIRS with f-UAS, lateral position, RIRS with f-UAS, lithotomy position, RIRS with traditional UAS, lateral position
- Where
- China
- Volunteers
- 120 people
- Sponsor
- The First Affiliated Hospital of Guangzhou Medical University
Nephrolithiasis, Flexible Ureteroscopy
Bendable Suction Ureteral Access Sheath Versus Conventional Ureteral Access Sheath in Management of Renal Stones Using Flexible Ureteroscopy
Urinary calculus is a globally recognized urological condition, with prevalence rates ranging from 1% to 13% across different geographical regions (1) Therapeutic approaches for renal calculi encompass extracorporeal shock wave…
- Trial name
- NCT06862141
- Testing
- bendable suction ureteral access sheath, conventional suction ureteral access sheath
- Where
- Egypt
- Volunteers
- 172 people
- Sponsor
- Menoufia University
Renal Stone, Nephrolithiasis
Impact Ureteral Sheath Design During Ureteroscopy
The purpose of this study is to assess whether one of two ureteral access sheaths is safer for patients undergoing ureteroscopy. Both sheaths are FDA approved devices and commercially available.
- Conditions
- Renal Stone, Nephrolithiasis, Urolithiasis
- Trial name
- NCT03349099
- Testing
- Cook Flexor, Boston Scientific Navigator
- Volunteers
- 95 people
- Sponsor
- The Cleveland Clinic
Nephrolithiasis, Urolithiasis
Comparison of Flexible & Navigable Suction Ureteral Access Sheath vs. Antegrade Suction in Retrograde Flexible Ureteroscopy for Lower Calyceal Stones
This randomized controlled trial aims to compare the efficacy and safety of two suction techniques during retrograde flexible ureteroscopy (FURS) for lower calyceal renal stones measuring 1.5-2 cm.
- Conditions
- Nephrolithiasis, Urolithiasis, Endourology
- Trial name
- NCT06889051
- Testing
- Flexible & Navigable Suction Ureteral Access Sheath (FANS), Antegrade Suction via Percutaneous Nephrostomy
- Volunteers
- 120 people
- Sponsor
- Benha University
Kidney Stones, Nephrolithiasis
Flexible and Navigable Suction Ureteral Access Sheath (FANS) vs Conventional Access Sheaths in RIRS: A Prospective Randomized Study.
Kidney stones located in the kidney are commonly treated using a minimally invasive procedure called retrograde intrarenal surgery (RIRS).
- Trial name
- NCT07377461
- Testing
- Flexible and Navigable Suction Ureteral Access Sheath (FANS), Conventional Ureteral Access Sheath
- Where
- Israel
- Volunteers
- 50 people
- Sponsor
- Barzilai Medical Center