- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT07627828
ComfiJ Versus Conventional Double-J Stent for Ureteral Stent Symptoms (COMFIJ-DJS)
Evaluation of Stent-Related Symptoms After ComfiJ Ureteric Stent Versus Conventional Double-J Ureteric Stent: A Prospective Multicenter Randomized Controlled Trial
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
Ureteral stents are frequently used after ureteroscopy and retrograde intrarenal surgery when temporary postoperative drainage is clinically indicated. However, ureteral stents may cause urinary symptoms, pain, hematuria, impaired daily activity, and reduced quality of life. Stent-related morbidity is therefore an important patient-centered outcome in endourology.
This study will compare a ComfiJ ureteral stent with a conventional double-J ureteral stent in adult patients undergoing unilateral ureteroscopy or retrograde intrarenal surgery for urinary stones. Randomization will be performed only after the surgeon has determined intraoperatively that postoperative stenting is required. Patients will be randomized in a 1:1 ratio to receive either a ComfiJ ureteral stent or a conventional double-J ureteral stent. The planned stent dwell time will be 14 days whenever clinically feasible.
The patient and postoperative outcome assessor will be blinded to treatment allocation. The operating surgeon will not be blinded because the stent type is visible during insertion. Stent-related symptoms will be assessed using the validated Arabic Ureteral Stent Symptom Questionnaire, together with pain scores, analgesic use, emergency visits, complications, stent migration, ease of insertion and removal, and patient satisfaction.
Studientyp
Einschreibung (Geschätzt)
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
- Name: Hany F Badawy, MD
- Telefonnummer: +201149525028
- E-Mail: HANYFATHY86@GMAIL.COM
Studienorte
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-
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Minya, Ägypten
- Rekrutierung
- Department of Urology- Minia University Hospitals
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Hauptermittler:
- M Abdelmalek, MD
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Kontakt:
- Ahmed M, MD
- Telefonnummer: +20 11 00464753
- E-Mail: a.m.abdelmalek@mu.edu.eg
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Tanta, Ägypten
- Rekrutierung
- Department of Urology- Tanra University Hospitals
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Hauptermittler:
- I Elmaadawy, MD
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Kontakt:
- I Elmaadawy, MD
- Telefonnummer: +201060245430
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Kontakt:
-
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Beni Suweif Governorate
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Banī Suwayf, Beni Suweif Governorate, Ägypten, 02456
- Rekrutierung
- Department of Urology- Beni-Suef University Hospitals
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Kontakt:
- Hany F Badawy, MD
- Telefonnummer: +201149525028
- E-Mail: HANYFATHY86@GMAIL.COM
-
Hauptermittler:
- Hany F Badawy, MD
-
-
Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Age 18 to 80 years.
- Adult patients undergoing unilateral ureteroscopy or retrograde intrarenal surgery for ureteric or renal stones.
- Intraoperative confirmation that short-term postoperative ureteric stenting for approximately 2 weeks is clinically indicated.
- Indications for postoperative stenting may include ureteric edema, minor ureteric mucosal trauma, need for ureteric dilatation, ureteral access sheath use with expected postoperative edema, impacted stone, residual dust or fragments requiring temporary drainage, or prolonged procedure.
- Ability to understand and complete the Arabic Ureteral Stent Symptom Questionnaire.
- Ability to provide written informed consent.
Exclusion Criteria:
- Cases in which no postoperative ureteric stent is clinically indicated.
- Cases requiring prolonged urinary drainage or major reconstructive decision-making.
- Bilateral ureteroscopy or retrograde intrarenal surgery.
- Solitary kidney.
- Major ureteric injury or ureteric perforation.
- Preoperative febrile urinary tract infection or sepsis.
- Pregnancy or breastfeeding.
- Neurogenic bladder.
- Overactive bladder syndrome.
- Major neurological disease or psychiatric disease affecting symptom reporting.
- History of major bladder, prostate, or pelvic surgery likely to confound stent-related symptoms.
- Concomitant use of alpha-blockers, anticholinergics, chronic analgesics, or other medications likely to alter symptom evaluation.
- Other acute medical conditions that might influence the Ureteral Stent Symptom Questionnaire pain score, including acute pancreatitis, acute gastroenteritis, or musculoskeletal disorders.
- Known allergy to any study-related medication or device material.
- Inability to comply with the follow-up schedule.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Doppelt
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Experimental: ComfiJ Ureteral Stent
Patients randomized to this arm will receive a ComfiJ ureteral stent after unilateral ureteroscopy or retrograde intrarenal surgery when short-term postoperative ureteral stenting is clinically indicated.
Planned stent removal will be performed on postoperative day 14 whenever clinically feasible.
|
Placement of a ComfiJ ureteral stent after unilateral ureteroscopy or retrograde intrarenal surgery for urinary stones when short-term postoperative ureteral stenting is clinically indicated.
|
|
Aktiver Komparator: Conventional Double-J Ureteral Stent
Patients randomized to this arm will receive a conventional double-J ureteral stent after unilateral ureteroscopy or retrograde intrarenal surgery when short-term postoperative ureteral stenting is clinically indicated.
Planned stent removal will be performed on postoperative day 14 whenever clinically feasible.
|
Placement of a conventional double-J ureteral stent after unilateral ureteroscopy or retrograde intrarenal surgery for urinary stones when short-term postoperative ureteral stenting is clinically indicated.
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Ureteral Stent Symptom Questionnaire Urinary Symptoms Domain Score at Postoperative Day 14
Zeitfenster: Postoperative Day 14 before stent removal
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The urinary symptoms domain score of the Arabic linguistically validated Ureteral Stent Symptom Questionnaire (USSQ) will be assessed at postoperative Day 14 before stent removal.
The urinary symptoms domain score ranges from 6 to 42, with higher scores indicating worse urinary stent-related symptoms.
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Postoperative Day 14 before stent removal
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Total Ureteral Stent Symptom Questionnaire Score at Postoperative Day 7
Zeitfenster: Postoperative Day 7
|
The total score of the Arabic linguistically validated Ureteral Stent Symptom Questionnaire (USSQ) will be assessed at postoperative Day 7. The USSQ evaluates six domains: urinary symptoms, body pain, general health, work performance, sexual matters, and additional problems.
The total score will be calculated as the sum of the six domain scores, with a possible total score range from 27 to 157.
Higher scores indicate worse ureteral stent-related symptoms and poorer health-related quality of life.
|
Postoperative Day 7
|
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Total Ureteral Stent Symptom Questionnaire Score at Postoperative Day 14
Zeitfenster: Postoperative Day 14
|
The total score of the Arabic linguistically validated Ureteral Stent Symptom Questionnaire (USSQ) will be assessed at postoperative Day 14.
The USSQ evaluates six domains: urinary symptoms, body pain, general health, work performance, sexual matters, and additional problems.
The total score will be calculated as the sum of the six domain scores, with a possible total score range from 27 to 157.
Higher scores indicate worse ureteral stent-related symptoms and poorer health-related quality of life.
|
Postoperative Day 14
|
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Visual Analogue Scale Pain Score
Zeitfenster: Postoperative Day 1, postoperative Day 7, and postoperative Day 14
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Pain intensity will be assessed using a Visual Analogue Scale.
The possible score range is 0 to 10, where 0 indicates no pain and 10 indicates the worst imaginable pain.
Higher scores indicate worse pain.
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Postoperative Day 1, postoperative Day 7, and postoperative Day 14
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Febrile Urinary Tract Infection
Zeitfenster: Up to postoperative Day 14
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Occurrence of febrile urinary tract infection after ureteral stent insertion, defined as postoperative fever (≥38.0°C) with clinical or laboratory evidence suggestive of urinary tract infection requiring medical evaluation or treatment.
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Up to postoperative Day 14
|
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Stent Migration or Displacement
Zeitfenster: From stent insertion to stent removal on postoperative Day 14
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Occurrence of ureteral stent migration or displacement documented clinically, endoscopically, or radiologically during the stent dwelling period.
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From stent insertion to stent removal on postoperative Day 14
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Mitarbeiter und Ermittler
Sponsor
Ermittler
- Hauptermittler: Hany F Badawy, MD, Faculty of medicine Beni-Suef University
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Geschätzt)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
- Urogenitale Erkrankungen
- Männliche Urogenitalerkrankungen
- Kalkül
- Pathologische Zustände, Anatomisch
- Urologische Erkrankungen
- Weibliche Urogenitalerkrankungen
- Weibliche Urogenitalerkrankungen und Schwangerschaftskomplikationen
- Harnsteine
- Harnleitererkrankungen
- Pathologische Zustände, Anzeichen und Symptome
- Ureterolithiasis
- Uretersteine
- Urolithiasis
Andere Studien-ID-Nummern
- COMFIJ DJ MRCT 2026
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