Clinical trials: Ureteral Stricture
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
Stricture Ureter
Buccal Mucosal Graft for Onlay Ureteroplasty in the Management of Proximal Ureteral Stricture
Onlay uretroplasty with either grafts or flaps has been attempted by many reconstructive urologists, ln particular buccal mucosa graft (BMG) ureteroplasty has been reported by many centers and has shown its feasibility and safety
- Trial name
- NCT05928364
- Testing
- Buccal mucosa for proximal ureter stricture
- Where
- Egypt
- Volunteers
- 100 people
- Sponsor
- Al-Azhar University
Ureter Stricture, Hydronephrosis
Post-Marketing Follow-Up of Long-term Type Ureteral Stent Set
Ureteral stents have been widely used in many urological operations. Although there are several reports regarding the effectiveness of long-term ureteral stents for malignancy ureteral obstruction, ureteral stricture and…
- Trial name
- NCT04250090
- Where
- Taiwan
- Volunteers
- 20 people
- Sponsor
- En Chu Kong Hospital
Ureteral Stricture, Hydronephrosis
Application of the Sentire C1000 for Ureteral Stricture Repair
The purpose of this clinical study is to evaluate the safety and efficacy of the Sten® Laparoendoscopic Surgical System C1000 for benign ureteral reconstruction surgery.
- Trial name
- ROBUST-C1000 (NCT06983067)
- Testing
- Cornerstone C1000 Robotic Surgery System
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Xuesong Li
Kidney Neoplasm, Kidney Stone
A Clinical Study of the Living Renal Transplantation With Restored Kidneys Between Family Members
Approximately 30,000 new patients are introduced into dialysis and about 20,000 of them die every year in Japan. At present, about 300,000 patients are on dialysis and more than 10,000 patients are registered with the Japan Organ…
- Conditions
- Kidney Neoplasm, Kidney Stone, Ureteral Tumor, Ureteral Stricture
- Trial name
- NCT00994188
- Testing
- Restored Kidney Transplant Between Family Members
- Where
- 2 sites in Japan
- Volunteers
- 5 people
- Sponsor
- Tokushukai Medical Group
Bladder Cancer
MOdified Urinary Conduit to Lower Strictures After radIcal Cystectomy
Cystectomy is the chosen treatment of bladder cancer in 400 cases every year in DK. In replacement of the removed bladder, a urinary diversion is constructed using 15cm of terminal ilium (Ad Modum Bricker).
- Trial name
- MOSAIC (NCT04391790)
- Testing
- Cystectomy and modified urinary conduit, Cystectomy and standard urinary conduit ad modum Bricker
- Where
- 5 sites in Denmark
- Volunteers
- 300 people
- Sponsor
- Jørgen Bjerggaard Jensen
Ureteral Stenosis
Covered Metal Ureteral Stents in the Treatment of Benign Short Ureteral Stricture
BSUS patients were prospectively enrolled in this study, and non-randomly treated with "balloon dilation +CMUS" and "balloon dilation + tandem DJ stent".
- Trial name
- NCT05430646
- Testing
- Covered metal ureteral stents, Tandem DJ stents
- Volunteers
- 100 people
- Sponsor
- Peking University People's Hospital
Ureteral Stricture
Duration of Ureteral Rest Prior to Ureteral Reconstruction Surgery
Our objective is to assess the effect of duration of ureteral rest, defined as time from conversion of ureteral stent to percutaneous nephrostomy, on stricture length prior to ureteral reconstruction surgery.
- Trial name
- NCT06384079
- Testing
- Antegrade and retrograde pyelogram
- Where
- United States
- Volunteers
- 25 people
- Sponsor
- Northwestern University
Ureteral Stricture, Hydronephrosis
Coated Metal Ureteral Stent in the Treatment of Radiation Induced Ureteral Stricture
A prospective, multicenter and controlled study to observe the efficacy and safety of coated metal ureteral stent in the treatment of radiation induced ureteral stricture.
- Conditions
- Ureteral Stricture, Hydronephrosis, Radiation Exposure
- Trial name
- NCT04441320
- Testing
- Coated metal ureteral stent(CMUS), Double-J stent(DJS)
- Where
- China
- Volunteers
- 100 people
- Sponsor
- Peking University People's Hospital
Ureteral Stenosis
An Investigation Into the Application of Preputial Grafts for the Reconstruction of Complex Ureteral Strictures
Complex ureteral stricture refers to a ureteral lumen stenosis lesion that cannot be directly treated with the traditional end-to-end anastomosis.
- Trial name
- PGU20240101 (NCT07408050)
- Testing
- Preputial graft ureteroplasty
- Where
- China
- Volunteers
- 50 people
- Sponsor
- Ruibao chen
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
Stricture of Pelviureteric Juncture
Functional MRI Evaluation in Pyeloureteral Junction Syndrome in Children
Pyelo-ureteral junction syndrome is the most common urological abnormality in children. Functional MRI has been evaluated several times and has shown good correlation with scintigraphy, but tends to overestimate results.
- Trial name
- NCT05498532
- Testing
- Functional MRI
- Where
- France
- Volunteers
- 270 people
- Sponsor
- Central Hospital, Nancy, France
Ureter Stricture
Buccal Mucosal Graft Ureteroplasty for Treatment of Proximal Ureteric Strictures, A Clinical Case Series.
While short strictures and even long strictures in the distal or mid-section of the ureter can easily be repaired by end-to-end anastomosis or simple re-implantation as well as standard procedures, such as psoas bladder hitch…
- Trial name
- NCT07797829
- Testing
- Buccal mucosal graft ureteroplasty
- Volunteers
- 25 people
- Sponsor
- Mohamed Salah Abdul Mawgoud
Ureteral Stricture, Hydronephrosis
Water Versus Saline as Irrigation Fluid for Ureteroscopy
The purpose of this study is to determine the rate of absorption of fluids (water or saline) during ureteroscopy and to assess the effects on electrolyte levels.
- Conditions
- Ureteral Stricture, Hydronephrosis, Urothelial Carcinoma, Urolithiasis
- Trial name
- NCT03794102
- Testing
- Water, Saline
- Where
- 2 sites in United States
- Volunteers
- 150 people
- Sponsor
- Emory University
Ureteral Stone, Kidney Stones
THE EFFECTS OF MIRABEGRON AND TAMSULOSIN FOR PATIENTS WITH URETERAL STENTS
Double J stent (ureteral stent) can cause discomfort to patients, generally due to irritation of the bladder mucosa, especially in the trigone area, smooth muscle spasm, and reflux of urine into the ureter.
- Conditions
- Ureteral Stone, Kidney Stones, Ureteral Stenosis
- Trial name
- NCT06124066
- Testing
- Mirabegron 50 MG
- Where
- Indonesia
- Volunteers
- 42 people
- Sponsor
- Hasanuddin 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
Ureteral Stricture, Dexmedetomidine
Dexmedetomidine-Esketamine Combination on Depression and Anxiety After Laparoscopic Ureteral Reconstruction
Anxiety and depressive symptoms are prevalent in patients undergoing surgical repair for ureteral stricture, driven by chronic pain, renal function concerns, and surgical uncertainty.
- Conditions
- Ureteral Stricture, Dexmedetomidine, Esketamine, Depressive Symptoms
- Trial name
- NCT07753772
- Testing
- Combined dexmedetomidine-esketamine administration
- Where
- China
- Volunteers
- 658 people
- Sponsor
- Peking University First Hospital
Ureteral Obstruction, Stricture Ureter
Use of SPY Fluorescent Angiography to Reduce Ureteroenteric Stricture Rate Following Urinary Diversion
Ureteroenteric anastomotic stricture is a well-known complication of urinary diversion which occurs in 4-25% of patients. Recent study has yielded that radiation is a significant risk factor for development of ureteroenteric…
- Trial name
- NCT05022199
- Testing
- SPY fluorescent angiography
- Where
- United States
- Volunteers
- 50 people
- Sponsor
- University of Virginia
Ureteral Stricture
Safety and Efficacy of URS Stents in the Treatment of Ureteral Stricture
A prospective observational study aimed to assess the efficacy and safety of Allium ureteral stent long-term indwelling in the treatment of ureteral stricture.
- Trial name
- NCT04129645
- Testing
- URS
- Where
- China
- Volunteers
- 500 people
- Sponsor
- Peking University People's Hospital
Stricture Ureter
A Study of Balloon Dilatation for the Treatment of Benign Ureteral Stricture
This study is designed to treat benign ureteral stricture with balloon dilatation through prospective multicenter studies. It aims to indications, procedure standards, and therapeutic effects of balloon dilation, and provide…
- Trial name
- NCT04021901
- Testing
- balloon dilatation
- Where
- China
- Volunteers
- 420 people
- Sponsor
- Changhai Hospital