Clinical trials: Ureteral Access Sheath
Urolithiasis, Kidney Stone
Flexible Ureteroscopy With Tip-bendable Suction Ureteral Access Sheath Versus Mini-Percutaneous Nephrolithotomy for Treatment of 2-3cm Renal Stones
Background: Percutaneous nephrolithotomy (PCNL) is the first-line treatment for renal stones larger than 2 cm according to EAU and AUA guidelines.
- Trial name
- NCT06526390
- Testing
- f-URS, mini-PCNL
- Where
- China
- Volunteers
- 720 people
- Sponsor
- The First Affiliated Hospital of Guangzhou Medical University
Urolithiasis, Tamsulosin
Medication Facilitated Ureteral Access Sheath Deployment During Ureteroscopy: The Impact of One Week of Preoperative Tamsulosin
The goal of this clinical trial is to assess whether tamsulosin given one week prior to renal or ureteric stone surgery would improve the success rate of ureteral access sheath deployment and decrease ureteral injury
- Conditions
- Urolithiasis, Tamsulosin, Pre-operative, Ureteral Access Sheath Placement
- Trial name
- NCT07847866
- Testing
- Tamsulosin 0.4 MG, Control
- Where
- 2 sites in Singapore
- Volunteers
- 111 people
- Sponsor
- Singapore General Hospital
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
Pediatric Renal Stones
Efficacy and Safety of Flexible Ureteroscopy With Flexible Navigable Suction Ureteral Access Sheath Versus Mini-Percutaneous Nephrolithotomy With Vacuum-Assisted Access Sheath
Mini-percutaneous nephrolithotomy (mini-PCNL) and retrograde intrarenal surgery (RIRS) are both effective treatment modalities for renal calculi measuring up to 2.5 cm in pediatric patients, demonstrating similar efficacy and…
- Trial name
- NCT07763743
- Testing
- Flexible Ureteroscopy
- Where
- Egypt
- Volunteers
- 72 people
- Sponsor
- Ain Shams 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
Urolithiasis
Effect of Use of Ureteral Access Sheath on Levels of Netrin-1 in Patients Undergoing RIRS
In this study, it is aimed to evaluate whether use of a ureteral access sheath (UAS) during retrograde intrarenal surgery (RIRS) due to kidney stone has any effect on protecting the kidney functions by measuring blood and urine…
- Trial name
- NCT02533414
- Testing
- RIRS with UAS, RIRS without UAS
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Selcuk University
Nephrolithiasis, Kidney Stone
ClearPetra™ Vacuum-assisted Ureteral Access Sheath vs Traditional Approach
Ureteroscopy has been considered the best approach when treating renal stones smaller than 2 cm. This procedure is usually performed together with ureteral access sheaths, which helps protect the ureter mucosa and lowers…
- Trial name
- VA-UAS vs trad (NCT06547632)
- Testing
- ClearPetra Ureteral access sheath
- Where
- United States
- Volunteers
- 3 people, healthy volunteers welcome
- Sponsor
- University of Kansas Medical Center
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
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
Kidney Stone
RIRS With Tip Flexible Pressure-controlling Ureteral Access Sheath Versus Mini PCNLfor Kidney Stones
The goal of this observational study is to compare the safety and efficacy between RIRS with tip flexible pressure-controlling ureteral access sheath and mini percutaneous nephrolithotripsy（PCNL） for the treatment of 2-3-cm…
- Trial name
- NCT06209931
- Testing
- RIRS
- Where
- China
- Volunteers
- 160 people
- Sponsor
- The Affiliated Ganzhou Hospital of Nanchang University
Renal Stones
Ureteroscopic Lithotripsy for Renal Stones Using a Sheathless Approach or Using a Flexible and Navigable Ureteral Access Sheath (FANS)
The primary aim of the study is to compare stone free rates following ureteroscopic (URS) lithotripsy for renal stones with Thulium Fiber Laser (TFL) using a sheathless approach (low power laser settings) or using a flexible and…
- Trial name
- NCT07741084
- Testing
- Sheathless URS, FANS, low power, FANS, high power
- Where
- Norway
- Volunteers
- 225 people
- Sponsor
- Haukeland University Hospital
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
Urinary Calculi
Use of a Ureteral Access Sheath During Ureteroscopy and Its Effect on Stone Free Rate
Patients with upper ureteral or renal stones will be randomized to undergoing ureteroscopy with or without a ureteral access sheath.
- Trial name
- NCT00199524
- Testing
- Navigator Ureteral Access Sheath
- Where
- 5 sites in Canada
- Volunteers
- 44 people
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's