NCT05463991

Brief Summary

The field of research for this study is tissue engineering and the utilization of a bioengineered collagen implant as a substitute biomaterial for conventional buccal mucosa in substitution urethroplasty of distal urethral strictures.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
5

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Aug 2022

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 14, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

July 19, 2022

Completed
27 days until next milestone

Study Start

First participant enrolled

August 15, 2022

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2025

Completed
Last Updated

April 29, 2026

Status Verified

January 1, 2026

Enrollment Period

3.4 years

First QC Date

July 14, 2022

Last Update Submit

April 23, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Urethral patency

    A peri-urethrogram will be performed prior to catheter removal.

    four weeks post-surgery

Secondary Outcomes (2)

  • Voiding symptoms

    two months up-to twenty-four months post-surgery

  • Urine flow

    two months up-to twenty-four months post-surgery

Study Arms (1)

Bioengineered collagen implant

EXPERIMENTAL

Standard technique of doing a substitution urethroplasty with no modification to the surgical steps. Instead of an autologous oral bucal mucosa graft, the bioengineered collagen implant is sutured to the healty urethral area after incision of the urethra at the stricture location.

Device: Bioengineered collagen implant

Interventions

Urethral stricture repair

Bioengineered collagen implant

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Adult males with urethral stricture less than 3 cm (anywhere from penile to bulbar urethra not including the membranous urethra) with existing lumen of at least 6 Fr suitable for augmentation urethroplasty. The stricture may be due to trauma or infection.

You may not qualify if:

  • Known bovine collagen allergy
  • Current urinary tract infection
  • Chronic renal failure
  • Diabeted
  • Neurological diseases
  • Chronic obstructive pulmonary diseases
  • Sleep disturbances
  • Depression
  • Former cancer treatment
  • Smokers
  • Recurrent stricture

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Malaya Medical Center

Kuala Lumpur, 59100, Malaysia

Location

MeSH Terms

Conditions

Urethral Stricture

Condition Hierarchy (Ancestors)

Urethral ObstructionUrethral DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital Diseases

Study Officials

  • Teng Aik Ong, Prof

    University of Malaya Medical Center

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DEVICE FEASIBILITY
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 14, 2022

First Posted

July 19, 2022

Study Start

August 15, 2022

Primary Completion

December 31, 2025

Study Completion

December 31, 2025

Last Updated

April 29, 2026

Record last verified: 2026-01

Data Sharing

IPD Sharing
Will not share

Locations