An Early Phase 1 interventional study of Buccal mucosal graft ureteroplasty in Ureter Stricture, sponsored by Mohamed Salah Abdul Mawgoud. Not yet recruiting. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-03.
Sponsored by Mohamed Salah Abdul Mawgoud · Early Phase 1, Interventional, and Treatment
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 and/or Boari-flap, reconstructions of long proximal ureter remain rare and challenging (1), Although long segment proximal ureteric stricture (LPUS) have traditionally been managed with ileal ureter replacement (IUR) or renal auto transplantation (RA), these procedures may be technically difficult to perform and associated with considerable morbidity.(2) While buccal mucosa grafts (BMG) in urethral reconstruction are well established, only few small series for BMG in ureteric stricture have been reported. While showing promising results, these studies were flawed by inhomogeneous cohorts of patients with different kinds of strictures like uretero-pelvic junction (UPJ) obstruction, proximal and mid-ureter strictures that were treated with different techniques such as onlay ureteroplasty or augmented end-to-endanastomosis. Even though buccal mucosa harvesting is well established and straightforward current guidelines still do not recommend BMG ureteroplasty as an equal alternative to more invasive alternatives such as ileum interposition or renal auto-transplantation. (3) In 1999, Naude (4) introduced an alternative and innovative technique for treating ureteric strictures by utilizing buccal mucosa grafts (BMG) in conjunction with omental wrapping. Implementing onlay BMG during ureteral reconstruction eliminates the necessity for extensive ureterolysis, reducing disruption to the peri-ureteral blood supply. Furthermore, the BMG can be customized to accommodate the dimensions of the ureteral defect, ensuring a tension-free anastomosis. (5)
456 studies on the registry are indexed under Constriction, Pathologic; 109 are open to participants now.
This study's planned enrollment of 25 is below the median of 72 across 295 interventional studies indexed under Constriction, Pathologic.
Browse Constriction, Pathologic studies →This is the only study on the registry with Mohamed Salah Abdul Mawgoud as lead sponsor.
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Exclusion Criteria:
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Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
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Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraindication
A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Procedure: Buccal mucosal graft ureteroplasty
Ureteric Exposure and Stricturoplasty The affected ureteric segment is approached (open flank) for upper third and Abernathy for middle ureteric stricture. and the stricture is identified and confirmed. The ureter is opened longitudinally (ureterotomy) with no. 11 blade across the full length of the stricture guided by the catheter onto 1 cm of healthy tissue proximally and distally. In short tight areas with maximal narrowing \<1 cm, mucosa is excised and mucosa to mucosa anastomosis is done. The prepared BMG is fashioned onto the ureterotomy defect (onlay technique) or configured as an augmentation patch and secured with vicryl 5-0 continuous absorbable sutures over a silicon 6/26 Dj stent. A double-J ureteric stent is placed across the repaired segment prior to completion of the graft inset to splint the reconstruction and ensure adequate drainage during graft take. Omental wrap or peri-ureteric fat/tissue coverage of the graft is performed where feasible to enhance graft vasculariza
Surgical success defined as ureteric patency without need for re-intervention
Time frame: 1 year
Surgical success defined as ureteric patency without need for re- intervention
Time frame: 1 year
No study locations are listed for this record.
Plan to share: No
This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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