Lab-Grown collagen patch may replace mouth tissue for urethra repair
NCT ID NCT05463991
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This pilot study tested a bioengineered collagen scaffold as a substitute for the traditional mouth-tissue graft used in urethral stricture repair. Five adult men with a short urethral stricture (less than 3 cm) received the implant. The main goal was to see if the urethra stayed open after surgery, and the study also tracked urinary symptoms and flow.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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5 people
The number who actually took part.
- Started
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Aug 2022
- Finished
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Dec 2025
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Male participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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University of Malaya Medical Center
Kuala Lumpur, 59100, Malaysia
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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