Bioengineered Collagen Implant for Urethral Stricture Repair

NCT ID: NCT05463991

Last Updated: 2025-09-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

5 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-08-15

Study Completion Date

2025-12-31

Brief Summary

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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.

Detailed Description

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Urethral stricture is defined as the abnormal narrowing of the urethral lumen in the area of the corpus spongiosum. A stricture is the result of ischemic spongiofibrosis manifesting as scar tissue in the corpus spongiosum. Long-term consequences are chronic fistulation through the skin, recurrent sepsis, bladder stones, obstructive uropathy, obstructive nephropathy, and finally renal failure.

Current available surgical techniques for urethral stricture repair require harvesting of grafts from autologous sites resulting in additional risks of complications at the tissue harvest site and additional pain to the patient.

The hypothesis of this study is that the developed bioengineered collagen implant can be used as an alternative biomaterial to buccal mucosa for substitution urethroplasty in urethral stricture patients.

Conditions

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Urethral Stricture

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DEVICE_FEASIBILITY

Blinding Strategy

NONE

Study Groups

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Bioengineered collagen implant

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.

Group Type EXPERIMENTAL

Bioengineered collagen implant

Intervention Type DEVICE

Urethral stricture repair

Interventions

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Bioengineered collagen implant

Urethral stricture repair

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

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.

Exclusion Criteria

* 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
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Regenosca SA

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Teng Aik Ong, Prof

Role: PRINCIPAL_INVESTIGATOR

University of Malaya Medical Center

Locations

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University of Malaya Medical Center

Kuala Lumpur, , Malaysia

Site Status RECRUITING

Countries

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Malaysia

Central Contacts

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Mattias Larsson

Role: CONTACT

+41765973705

Eva-Maria Balet

Role: CONTACT

+41788687973

Facility Contacts

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Teng Aik Ong, Prof

Role: primary

Yeoh Wei Sien

Role: backup

Other Identifiers

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FIH-BCI

Identifier Type: -

Identifier Source: org_study_id

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