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Efficacy of PRF in Hypospadias Repair

10. august 2026 opdateret af: Younan Ramsis, Ain Shams University

Evaluating the Efficacy of Platelet-Rich Fibrin (PRF) in Hypospadias Repair: A Randomized Controlled Trial

Hypospadias is an anomaly characterized by an ectopic ventral urethral meatus, and an incomplete or hooded prepuce. Its incidence is estimated at 1 in 200-300 live male births, with variations across populations and severity types.

Successful hypospadias repair depends largely on optimal tissue healing and robust vascular support around the neourethra. Thus, many adjunctive techniques have been investigated to improve outcomes, including dartos flaps, tunica vaginalis flaps, and various tissue sealants.

In recent years, attention has turned toward biological augmentation strategies, particularly the use of platelet-rich plasma (PRP) and platelet-rich fibrin as a potential enhancer of wound healing.

Platelet-rich fibrin (PRF), a second-generation autologous platelet concentrate, has recently emerged as another promising biologic in tissue engineering.

This study aims to evaluate the effect of PRF application in primary hypospadias repair surgery and determine its effect in improving healing and reduction of postoperative complications.

Studieoversigt

Status

Ikke rekrutterer endnu

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

All patients included in the study will undergo primary hypospadias repair using the standardized Tubularized Incised Plate (TIP) urethroplasty technique (Snodgrassi procedure), under general anesthesia and by the same surgical team to minimize variability

  • Steps of the Surgical Procedure (Same for Both Groups):

    1. Preoperative preparation:

  • IV antibiotics, sterile field setup, general anesthesia. 2. Urethral plate incision and tubularization over a 6-8 Fr stent using absorbable sutures.

    3. application of PRF (Group A only):

  • 8-10 mL of autologous blood is drawn into plain (non-anticoagulant) tubes according to the patient's weight and the size of the patch needed.
  • The sample is immediately centrifuged using the single-spin method (typically 3,000 rpm (400x g) for 12 minutes).

  • This produces three layers:

    • Top layer: acellular plasma (PPP)
    • Middle layer: platelet-rich fibrin (PRF) clot
    • Bottom layer: red blood cells The PRF clot is gently removed and compressed using a gauze to form a thin PRF membrane.

  • PRF membrane is fixed on top of the suture line as a first layer and under the incision line as a second layer and secured using a few resorbable polyglyconate 6/0 interrupted sutures.

    4. Glansplasty and skin closure using standard techniques in both groups 5. Catheter and dressing:

  • A soft catheter is left in place for 5-7 days.
  • A mild compression dressing is applied.

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

80

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiekontakt

Undersøgelse Kontakt Backup

  • Navn: Younan R. Samir, M.D.
  • Telefonnummer: +201201255511
  • E-mail: dr_yona@live.com

Studiesteder

  • Egypten
    • Abbasia
      • Cairo, Abbasia, Egypten, 11517
        • Ain Shams University
        • Kontakt:

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

  • Barn
  • Voksen

Tager imod sunde frivillige

Ingen

Beskrivelse

Inclusion Criteria:

  • Diagnosed with primary distal or mid-penile hypospadias.
  • Eligible for first-time (primary) surgical repair using the TIP (Tubularized Incised Plate) technique.

Exclusion Criteria:

  • previous hypospadias surgery.
  • Associated severe chordee requiring staged repair or patient with crippled hypospadias.
  • Children with systemic diseases that may impair wound healing (e.g., diabetes, immunodeficiency, malnutrition).
  • Presence of bleeding or coagulation disorders.
  • Medically Unfit for surgery.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Group A TIP urethroplasty with autologous PRF
Undergoes TIP urethroplasty with intraoperative placement of autologous PRF onto the urethral plate.
Procedure: Tubularized Incised Plate urethroplasty with intraoperative placement of autologous PRF onto the urethral plate.

Urethral plate incision and tubularization over a 6-8 Fr stent using absorbable sutures.

Application of PRF where 8-10 mL of autologous blood is drawn into plain (non-anticoagulant) tubes and a thin PRF membrane is extracted which is fixed on top of the suture line as a first layer and under the incision line as a second layer and secured using a few resorbable polyglyconate 6/0 interrupted sutures.

Glansplasty and skin closure using standard techniques and fixing catheter and dressing
Aktiv komparator: Group B standard TIP urethroplasty without PRF
Undergoes standard TIP urethroplasty without PRF application
Procedure: standard Tubularized Incised Plate urethroplasty

Urethral plate incision and tubularization over a 6-8 Fr stent using absorbable sutures.

Glansplasty and skin closure using standard techniques and fixing catheter and dressing

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Urethrocutaneous fistula formation
Tidsramme: 6 months
Incidence of urethrocutaneous fistula formation
6 months
Parental satisfaction Assessment
Tidsramme: 6 months
Parental satisfaction assessed using a standardized questionnaire HOPE score
6 months

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Ain Shams University

Efterforskere

  • Studiestol: Hany H. Gad, Professor, Ain Shams University
  • Studieleder: Hossam M.H. ElAwady, Professor, Ain Shams University

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Anslået)

1. august 2026

Primær færdiggørelse (Anslået)

1. august 2027

Studieafslutning (Anslået)

1. oktober 2027

Datoer for studieregistrering

Først indsendt

26. juli 2026

Først indsendt, der opfyldte QC-kriterier

10. august 2026

Først opslået (Faktiske)

11. august 2026

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

11. august 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. august 2026

Sidst verificeret

1. august 2026

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • PRF Hypospaias 001

Plan for individuelle deltagerdata (IPD)

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INGEN

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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