Clinical trials: Ureter Obstruction
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 Obstruction
Drainage of Malignant Extrinsic Ureteral Obstruction Using the Memokath Ureteral Stent
The purpose of this study is to evaluate the safety and efficacy of the Memokath 051 ureteral stent as a long-term temporary and minimally invasive means of providing ureteral drainage in the setting of malignant extrinsic…
- Trial name
- NCT00166361
- Testing
- Memokath 051 Ureteral Stent, JJ Stent
- Where
- United States
- Volunteers
- 29 people
- Sponsor
- Mayo Clinic
Ureteral Obstruction, Urinary Diversion
Early Infancy Ureteral Reimplantation for Distal Ureteral Obstruction
Prospective multicenter observational study of early infancy ureteral reimplantation for distal ureteral obstruction. The study is an observation study since the investigators will not assign specific interventions to the…
- Trial name
- NCT02419339
- Testing
- Extravesical ureteral reimplantation
- Where
- United States
- Volunteers
- 5 people
- Sponsor
- University of Nebraska
Ureteral Obstruction, Flank Pain
Mirabegron as Medical Expulsive Therapy (MET) for Ureteral Stones and Ureteral Stent Pain
The study will be a prospective randomized double-blind placebo-controlled trial of mirabegron for medical expulsive therapy (MET) in patients with a CT (Computed Tomography) scan-proven ureteral stone between 4 to 10 mm…
- Trial name
- NCT02744430
- Testing
- Mirabegron
- Where
- United States
- Volunteers
- 33 people
- Sponsor
- Baylor College of Medicine
Pelvi Ureteric Junction Obstruction or Ureteral Stricture
Buccal Mucosal Graft for the Repair of Iatrogenic Pelviureteric Junction Obstruction or Ureteric Stricture.
Prospective study to evaluate the safety and efficacy of using buccal mucosal graft for repairing complex cases of iatrogenic pelvi ureteric junction obstruction and long segment ureteric stricture disease.
- Trial name
- NCT04503330
- Testing
- buccal mucosal graft to repair iatrogenic PUJO
- Volunteers
- 20 people
- Sponsor
- Cairo University
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 Stone, Renal Stone
Duration Between Drainage and Ureteroscopic Lithotripsy
This study will be conducted to compare early (seven days) versus delayed (14-21 days) definitive ureteroscopic lithotripsy after initial drainage for obstructing ureteral or renal stones associated with infection.
- Conditions
- Ureter Stone, Renal Stone, Ureteric Obstruction
- Trial name
- NCT06101563
- Testing
- Early ureteroscopy, Delayed Ureteroscopy
- Where
- Egypt
- Volunteers
- 96 people
- Sponsor
- Mansoura University
Open, Laparoscopic
Open Versus Laparoscopic Dismembered Pyeloplasty Among Adult Patients With Primary Pelvi-Ureteric Junction Obstruction
To prospectively compare the perioperative, morphological and functional outcomes on short and medium term between laparoscopic (LP) and open pyeloplasty (OP) patients.
- Conditions
- Open, Laparoscopic, Dismembered Pyeloplasty, Primary Pelvi-Ureteric Junction
- Trial name
- NCT06572371
- Testing
- Laparoscopic pyeloplasty, Open pyeloplasty
- Where
- Egypt
- Volunteers
- 34 people
- Sponsor
- Tanta 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
Ureteral Obstruction
Ureteral Reimplantation for the Treatment of Extrinsic Malignant Ureteral Obstruction
A single center single arm prospective study, assessing the outcome of ureteral re-implantation for malignant ureteral obstruction.
- Trial name
- NCT02160652
- Testing
- Laparoscopic ureteral re-implantation.
- Volunteers
- 50 people
- Sponsor
- Rabin Medical Center
Ureteral Obstruction
Efficacy and Safety of a Covered Self-expandable Dual-layered Metallic Mesh Stent (UVENTA) in Ureteral Obstruction
The purpose of this study is to evaluate Efficacy and Safety of a covered self-expandable dual-layered metallic mesh stent (UVENTA) in ureteral obstruction.
- Trial name
- UVENTA (NCT01788865)
- Testing
- cSEMS(Covered self-expandable dual-layered metal stent) implant
- Where
- 2 sites in South Korea
- Volunteers
- 92 people
- Sponsor
- Samsung Medical Center
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
Pelvi-Ureteric Obstruction
Barbed Versus PGA Sutures in Minimally Invasive Dismembered Pyeloplasty
The main goals of this trial is to study the feasibility and safety of using barbed sutures compared to the conventional PGA (Polyglactin) sutures in minimally invasive dismembered pyeloplasty.
- Trial name
- NCT06526559
- Testing
- Barbed suture, PGA suture
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Cairo University
Urinary Stone, Renal Colic
Radiomics and Image Segmentation of Urinary Stones by Artificial Intelligence
Kidney stone disease causes significant morbidity, and stones obstructing the ureter can have serious consequences. Imaging diagnostics with computed tomography (CT) are crucial for diagnosis, treatment selection, and follow-up.
- Conditions
- Urinary Stone, Renal Colic, Obstruction Ureter, Urosepsis
- Trial name
- RISUS_AI (NCT06412900)
- Where
- Norway
- Volunteers
- 522 people
- Sponsor
- Oslo University Hospital
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
Renal Injury, Kidney Injury
Efficacy and Safety of Renalof® in the Removal of Calculi Smaller Than 10 mm Located in the Reno-Ureteral Tract
Given the high recurrence of urolithiasis in patients, the search for less aggressive and preventive treatments is increasingly necessary.
- Conditions
- Renal Injury, Kidney Injury, Kidney Calculi, Ureteral Obstruction
- Trial name
- NCT04695951
- Testing
- Renalof
- Where
- Nicaragua
- Volunteers
- 155 people
- Sponsor
- Catalysis SL
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
Pelvi-ureteric Junction Obstruction
Different Surgical Modalities in the Management of Pelvi-ureteric Junction Obstruction
The study compared open pyeloplasty (OP) and laparoscopic pyeloplasty (LP) for treating Pelvi-ureteric Junction Obstruction (PUJO) in 40 patients.
- Trial name
- NCT06822270
- Testing
- open surgery, Laparoscopic Pyeloplasty
- Where
- Egypt
- Volunteers
- 40 people
- Sponsor
- Assiut University
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
Urolithiasis
Multi-Center Comparison of Dual Lumen Versus Single Lumen Ureteroscopes
Urolithiasis (kidney stones) is a common disease process affecting people all across the world. Usually, if the stone size is small, it is able to pass through the urinary system and exit the bladder on its own with no treatment.
- Trial name
- NCT02123082
- Testing
- Storz single Lumen Ureteroscope, Dual Lumen Ureteroscope
- Where
- United States
- Volunteers
- 156 people, healthy volunteers welcome
- Sponsor
- University of California, Irvine