Fibrin-Enhanced TIP Versus Grafted TIP Urethroplasty in Distal Hypospadias

NCT ID: NCT07319780

Last Updated: 2026-01-30

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

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-01-05

Study Completion Date

2028-12-25

Brief Summary

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Hypospadias is a common congenital condition in boys in which the opening of the urethra is located on the underside of the penis. Distal hypospadias is the most common form and is usually treated surgically using tubularized incised plate (TIP) urethroplasty. In boys with an unfavorable urethral plate, graft-augmented techniques (G-TIP) are often used; however, postoperative complications such as urethrocutaneous fistula and narrowing of the urethral opening (meatal stenosis) may still occur.

Platelet-rich fibrin (PRF) is a biological material obtained from the patient's own blood that contains natural growth factors and may help improve tissue healing. This study aims to evaluate whether the use of PRF during surgery can reduce postoperative complications and improve surgical outcomes in children undergoing hypospadias repair.

Detailed Description

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This is a prospective, multicenter, single-blinded randomized controlled trial designed to compare fibrin-enhanced tubularized incised plate (F-TIP) urethroplasty using autologous platelet-rich fibrin (PRF) with grafted tubularized incised plate (G-TIP) urethroplasty in children with distal hypospadias and an unfavorable urethral plate.

Male children aged 6 months to 84 months with primary or redo distal hypospadias and mild penile curvature will be eligible for inclusion. Participants will be randomized in a 1:1 ratio to undergo either F-TIP urethroplasty with intraoperative application of autologous PRF or standard G-TIP urethroplasty without PRF.

Autologous PRF will be prepared intraoperatively from the patient's peripheral blood using a standardized centrifugation protocol and applied to the incised urethral plate prior to tubularization.

Participants will be followed postoperatively for the assessment of surgical complications, functional outcomes, and cosmetic results according to predefined outcome measures.

Conditions

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Distal Hypospadias Hypospadias

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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F-TIP Urethroplasty

Participants will undergo fibrin-enhanced tubularized incised plate (F-TIP) urethroplasty. Autologous platelet-rich fibrin will be prepared intraoperatively and applied to the incised urethral plate and fixed with PDS 6/0-7/0 suture prior to tubularization.

Group Type EXPERIMENTAL

Fibrin-Enhanced TIP Urethroplasty

Intervention Type PROCEDURE

Tubularized incised plate urethroplasty augmented with autologous platelet-rich fibrin membrane applied to the incised urethral plate prior to tubularization.

G-TIP Urethroplasty

Participants will undergo grafted tubularized incised plate (G-TIP) urethroplasty using standard graft augmentation techniques for unfavorable urethral plates.

Group Type ACTIVE_COMPARATOR

Grafted TIP Urethroplasty

Intervention Type PROCEDURE

Graft-augmented tubularized incised plate urethroplasty performed using standard surgical techniques for unfavorable urethral plates.

Interventions

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Fibrin-Enhanced TIP Urethroplasty

Tubularized incised plate urethroplasty augmented with autologous platelet-rich fibrin membrane applied to the incised urethral plate prior to tubularization.

Intervention Type PROCEDURE

Grafted TIP Urethroplasty

Graft-augmented tubularized incised plate urethroplasty performed using standard surgical techniques for unfavorable urethral plates.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* Male children aged 6 months to 84 months
* Primary or redo distal hypospadias
* Unfavorable urethral plate
* Penile curvature less than 45 degrees after degloving
* Eligibility for tubularized incised plate urethroplasty

Exclusion Criteria

* Disorders of sex development or ambiguous genitalia
* Severe penile curvature requiring urethral plate transection
* Previous graft-based urethroplasty
* Active local or systemic infection at the time of surgery
* Known bleeding or platelet disorders
* Inability to comply with postoperative follow-up
Minimum Eligible Age

6 Months

Maximum Eligible Age

84 Months

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Dr Cipto Mangunkusumo General Hospital

OTHER

Sponsor Role collaborator

National Children's Medical Center, Uzbekistan

OTHER

Sponsor Role lead

Responsible Party

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Zafar Abdullaev

Head of the Pediatric Urology Department

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Zafar Abdullaev, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

National Children's Medical Center, Tashkent, Uzbekistan

Locations

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Dr. Cipto Mangunkusumo Hospital

Jakarta, DKI Jakarta, Indonesia

Site Status NOT_YET_RECRUITING

National Children's Medical Center

Tashkent, Tashkent, Uzbekistan

Site Status RECRUITING

Countries

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Indonesia Uzbekistan

Central Contacts

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Zafar Abdullaev, MD PhD

Role: CONTACT

+998-90-909-9911

Facility Contacts

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Dr. Cipto Mangunkusumo General Hospital Jakarta, Indonesia Pediatric Urology Department

Role: primary

+6285935071599

National Children's Medical Center Pediatric Urology department

Role: primary

+998950047777 ext. +998950047777

References

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Abbas TO, Khalil IA, Hatem M, Boyko A, Zorkin S. Plate Objective Scoring Tool (POST) in distal hypospadias: Correlation with post-repair complications. J Pediatr Urol. 2024 Apr;20(2):238.e1-238.e6. doi: 10.1016/j.jpurol.2023.11.022. Epub 2023 Nov 25.

Reference Type RESULT
PMID: 38071112 (View on PubMed)

Abbas TO. Evaluation of penile curvature in patients with hypospadias; gaps in the current practice and future perspectives. J Pediatr Urol. 2022 Apr;18(2):151-159. doi: 10.1016/j.jpurol.2021.12.015. Epub 2021 Dec 31.

Reference Type RESULT
PMID: 35031224 (View on PubMed)

Abbas TO. An objective hypospadias classification system. J Pediatr Urol. 2022 Aug;18(4):481.e1-481.e8. doi: 10.1016/j.jpurol.2022.05.001. Epub 2022 May 11.

Reference Type RESULT
PMID: 35644790 (View on PubMed)

Other Identifiers

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102025-11

Identifier Type: -

Identifier Source: org_study_id

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