Clinical trials: Ureteral Obstruction
Ureteral Obstruction
Functional MR Urography
The objective of functional Uro MR is to add to an initial morphological phase, based on T2 and T1 weighted MR sequences, a sequential contrast-enhanced acquisition allowing to obtain functional semi-quantitative parameters from…
- Trial name
- NCT00301470
- Testing
- MR urography
- Where
- 16 sites in France
- Volunteers
- 550 people
- Sponsor
- Central Hospital, Nancy, France
Ureter Obstruction
Primary Versus Deferred Ureteroscopy for Calculus Anuria in Children
To evaluate the role of both primary and deferred URS in the management of calculus anuria concerning the feasibility, clinical outcome, and cost-effectiveness in children in a comparative study
- Trial name
- NCT04980079
- Testing
- Primary ureterscopy URS, deferred ureteroscopy URS
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- South Valley University
Renal Cell Carcinoma, Adrenal Tumor
The Efficacy and Safety of Chinese Domestic Surgical Robot System in Urological Telesurgery
A single-arm clinical trial was designed in this study. The surgeon will perform urological telesurgery for patients using Chinese domestically produced "MicroHand S" surgical robot system.
- Conditions
- Renal Cell Carcinoma, Adrenal Tumor, Nonfunctioning Kidney, Renal Pelvis Carcinoma
- Trial name
- NCT05739812
- Testing
- telesurgery by domestic surgical robot
- Where
- China
- Volunteers
- 100 people
- Sponsor
- The Affiliated Hospital of Qingdao University
Malignant Ureteral Obstruction
Comparison of Silicone-covered Metallic Ureteral Stent and Double-J Stent for Malignant Ureteral Obstruction
Malignant ureteral obstruction often necessitates chronic urinary diversion and is associated with high rates of failure with traditional double-J ureteral stents.
- Trial name
- NCT01823575
- Testing
- Silicone-covered metallic stent, Double-J stent
- Where
- South Korea
- Volunteers
- 78 people
- Sponsor
- Asan Medical Center
Ureterohydronephrosis, Ureter Obstruction
Robot-Assisted Pyeloplasty in Young Children
The goal of this retrospective study is to analyse the outcomes of Robot-Assisted Pyeloplasty in participants younger than 5 years old: indication criteria clinical symptoms operating time length of stay complications follow-up
- Conditions
- Ureterohydronephrosis, Ureter Obstruction, Child, Only
- Trial name
- PYEROB (NCT06734455)
- Testing
- Robot-Assisted Pyeloplasty
- Where
- France
- Volunteers
- 9 people
- Sponsor
- Destinval Christelle
Urinary Tract Infection, Kidney Diseases
A Randomized Control Trial Comparing Single vs. Multiple Application of Lidocaine Analgesia Prior to Urethral Catheterization Procedures
The purpose of this study is to determine if a single application of Lidocaine gel topical anesthesia is as effective in decreasing the discomfort associated with urinary catheterization as two applications, within our pediatric…
- Conditions
- Urinary Tract Infection, Kidney Diseases, Ureteral Diseases, Ureteral Obstruction
- Trial name
- NCT00142064
- Testing
- observed levels of pain
- Where
- United States
- Volunteers
- 200 people, healthy volunteers welcome
- Sponsor
- Children's Mercy Hospital Kansas City
Ureteral Stent Occlusion
OPTIMAL STENTS DURING RENAL COLIC
From June 2018 to October 2018, patients from two distinct clinical centers were prospectively enrolled in the study and stratified (non-randomly) into either control group A, patients who received polyurethane stents (Rüsch…
- Trial name
- NCT04000178
- Testing
- polyurethane stent, silicone stent
- Where
- Russia
- Volunteers
- 50 people
- Sponsor
- St. Petersburg State Pavlov Medical University
Ureteral Obstruction
Laparoscopic Pyeloplasty Registry and Database
The gold standard for the treatment of ureteropelvic junction obstruction (UPJO) is the open pyeloplasty. As a minimally invasive alternative, many centers are currently offering laparoscopic pyeloplasty (LP) as primary therapy…
- Trial name
- NCT00169650
- Testing
- Registry and database
- Where
- United States
- Volunteers
- 64 people
- Sponsor
- Indiana Kidney Stone Institute
Ureteral Obstruction
Treatment of Symptoms After Stent Placement for Urinary Tract Obstruction
The purpose of this study is to determine whether combination therapy with Tolterodine ER and Tamsulosin is more effective than monotherapy with tamsulosin alone in reducing stent symptoms.
- Trial name
- NCT01741454
- Testing
- Tamsulosin, Tolterodine ER
- Where
- United States
- Volunteers
- 181 people
- Sponsor
- University of Wisconsin, Madison
Ureteral Stenosis, Hydronephrosis
Efficacy and Safety of Allium Ureteral Stent for Treating Refractory Ureteral Stricture
To conduct a prospective, multi-center study to observe the long-term efficacy and safety of self expanding ureteral stent for treating participants with refractory ureteral stricture.
- Conditions
- Ureteral Stenosis, Hydronephrosis, Ureteral Stent Occlusion
- Trial name
- Allium (NCT05455307)
- Testing
- Allium ureteral stent
- Where
- Taiwan
- Volunteers
- 200 people
- Sponsor
- En Chu Kong Hospital
Kidney Stone, Ureter Obstruction
Is it Safe to Advance a Guidewire Through a Previously Placed Double j Stent?
In this prospective randomized controlled study, it is aimed to investigate the effects of guidewire advanced through a previously placed double j stent on postoperative complications, operation time and efficacy.
- Conditions
- Kidney Stone, Ureter Obstruction, Stent Complication
- Trial name
- NCT05265936
- Testing
- Passing a guidewire through a double j stent, Double J stent removal and guidewire insertion
- Where
- Turkey (Türkiye)
- Volunteers
- 88 people
- Sponsor
- Ankara Training and Research Hospital
Conservative Gynecological Procedures
Uretal Flow Assessment During Gynecological Procedures
The objective is to evaluate the feasibility of using color Doppler ultrasound in ureteral flow assessment after uterine artery occlusion during a conservative gynecological procedure.
- Trial name
- NCT00453882
- Testing
- flostat (TM) System
- Where
- United States
- Volunteers
- 7 people
- Sponsor
- Ethicon, Inc.
Ureteral Obstruction
Tolerance and Effectiveness of Ureteral Stents MEMOKATH ® 051 in Chronic Strictures of the Ureter
TOTEME offers to treat certain chronic strictures of the ureter with MEMOKATH 051 to assess its effectiveness, tolerance and mean durability during a 3 years follow up period.
- Trial name
- TOTEME (NCT00790686)
- Testing
- Insertion of Memokath 051
- Where
- 4 sites in France
- Volunteers
- 13 people
- Sponsor
- University Hospital, Bordeaux
Hydronephrosis; Obstruction, Ureter, Renal Failure
Tandem Polyurethane Stents Compared to Single Silicone Stent for Malignant Ureteral Obstruction
Malignant ureteral obstruction (MUO) is an extrinsic ureteral obstruction caused by malignant diseases. This study aim to compare tandem 6 Fr Percuflex™ stents and single large-caliber 8Fr silicone stent in patients with MUO.
- Conditions
- Hydronephrosis; Obstruction, Ureter, Renal Failure, Malignancy, Ureter Obstruction
- Trial name
- TSTENT (NCT05992363)
- Testing
- ureteral stent\s insertion
- Where
- 2 sites in Israel
- Volunteers
- 106 people
- Sponsor
- Rabin Medical Center
Ureteral Obstruction
Room Air a Safe Alternative to Dye Injection in Ureterography
The procedure began in the Thirties .Retrograde pyelography is an essential step in most endoscopic procedure. This procedure is used as an investigation, with different indication in the past and the present, to delineate the…
- Trial name
- NCT06110299
- Testing
- air injection
- Volunteers
- 24 people
- Sponsor
- Assiut University
Ureteral Calculi, Hydronephrosis
Evaluating Ureteral Length Using Computed Tomography (CT)
Proper selection of ureteral stent length might help in reducing comorbidities associated with ureteral stenting, currently there is no standardized way of measuring ureteral length.
- Conditions
- Ureteral Calculi, Hydronephrosis, Ureteral Obstruction
- Trial name
- URO-Y-2 (NCT01542593)
- Testing
- Ureteral catheterization - Cook Urological Inc. open end ureteral catheter 5FR
- Where
- Israel
- Volunteers
- 53 people
- Sponsor
- Carmel Medical Center
Ureteral Obstruction
Urinary Biomarkers as Predictors on Renal Function in Congenital Hydronephrosis
The purpose of this study is to detect new urinary biomarkers that can be used as predictors on renal function in congenital hydronephrosis caused by unilateral ureteral obstruction (UUO) and to elucidate the pathophysiology of…
- Trial name
- NCT00568724
- Where
- Denmark
- Volunteers
- 45 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Ureteral Obstruction, Neoplasms
Antibiotic Prophylaxis in Percutaneous Nephrostomy Placements and Replacements for Malignant Urinary Tract Obstruction
This study aims to find out whether taking antibiotics to prevent a urinary tract infection after a medical procedure called percutaneous nephrostomy (placement of a catheter directly into the kidney to keep it working after the…
- Conditions
- Ureteral Obstruction, Neoplasms, Acute Kidney Injury, Nephrostomy; Complications
- Trial name
- NCT06801405
- Testing
- antibiotic prophylaxis
- Where
- Brazil
- Volunteers
- 320 people
- Sponsor
- Barretos Cancer Hospital
Ureter Stone, Quality of Life
Trospium Chloride vs Tamsulosin in Treatment of Ureteral Stent Related Symptoms:
This study will be conducted to compare the efficacy and safety of Trospium chloride versus Tamsulosin for treatment of ureteral stent related symptoms.
- Conditions
- Ureter Stone, Quality of Life, Ureter Obstruction
- Trial name
- NCT03709992
- Testing
- Trospium Chloride, Tamsulosin
- Where
- Egypt
- Volunteers
- 200 people
- Sponsor
- Mansoura University
Ureteral Stricture, Ureteral Obstruction
An Integrated Multi-omics Study on the Molecular Mechanisms of Ureteral Stricture
The goal of this observational study is to investigate the systemic pathogenesis and identify potential diagnostic biomarkers in patients with ureteral stricture and healthy volunteers.
- Conditions
- Ureteral Stricture, Ureteral Obstruction, Microbiome, Metabolomics
- Trial name
- US-MOP (NCT07409870)
- Where
- China
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- First Affiliated Hospital of Chongqing Medical University