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- Essai clinique NCT03526458
Clinical Trial Evaluating the Efficiency of Holmium Laser Settings on Urinary Stones
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
The only interventions imposed on subjects as a result of this study are (1) pre-procedural randomization to laser lithotripsy with either 0.2J or 0.8J energy setting, and (2) the use of patient information in describing results. All the other activities are part of the routine clinical practice in the department. Participation in the study will not alter the patients' preoperative, or postoperative care. During surgery, patients' stones will be treated in accordance with the routine clinical practice of fragmenting stones into small pieces (<2 mm). All patients enrolled will undergo routine post-operative follow up including clinic appointments and imaging evaluation. Any complications will be recorded, reported, and treated appropriately. A fixed frequency will be used (15Hz). Thus, the study contains two arms: 0.2J&15Hz, and 0.8J&15Hz. Patients will be randomized into the two groups by the ratio of 1:1. A total of 1 clinic visit (i.e., the stone surgery, approximately 5-6 hours, depending on the duration of the surgery) is needed for this study.
The study procedures are:
- A study team member who is affiliated with the patient's clinical care (e.g., the surgeon) will initially approach the patients who are scheduled laser lithotripsy treatment of urinary stones. (i.e. informed that there's a research study they may be eligible for, and asked if they want to learn more about it).
- If the patient is interested in the study, a member of the research team will approach him/her for enrollment.
- Once the consent form is obtained, patients' medical background will be reviewed for inclusion/exclusion criteria. Patients who meet the inclusion criteria will be included in the study; patients who do not meet the inclusion criteria will be excluded.
- Patients will be randomized to either 0.2J&15Hz or 0.8J&15Hz (randomization ratio 1:1) group.
- Patients will undergo stone surgeries with the laser setting that they are randomized to. The patient's stone(s) will be treated in accordance with the routine clinical practice of fragmenting stone into small pieces (≤ 2mm). The faculty surgeon (i.e., Dr. Nakada) will perform all surgeries.
- Fragmentation time as well as other information (total surgery time, complications, stone information, and number of stones treated) is collected.
- After surgery, the patients will then continue on normal postoperative pathway. Postoperative complications will be collected.
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
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Wisconsin
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Madison, Wisconsin, États-Unis, 53792
- University Of Wisconsin
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Patients at least 18 years of age
- Patients with urinary stones who require endoscopic treatment
Exclusion Criteria:
- Patients < 18 years of age
- Pregnant patients
- Pre-menopausal females who have not been on approved birth control for at least 1 month pre-operatively
- Patients with stones known to be refractory to treatment with the holmium laser
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
---|---|
Comparateur actif: Holmium:YAG laser: 0.2J&15Hz
Patients are assigned to treat stones with 0.2J&15Hz of the holmium laser.
|
Treatment of urolithiasis is commonly done using the holmium:YAG laser as this has been shown to be a safe and effective method of treating a wide variety of stones and is currently considered the standard of care (AUA Guideline Panel on the Surgical Management of Stones)
|
Expérimental: Holmium:YAG laser: 0.8J&15Hz
Patients are assigned to treat stones with 0.8J&15Hz of the holmium laser.
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Treatment of urolithiasis is commonly done using the holmium:YAG laser as this has been shown to be a safe and effective method of treating a wide variety of stones and is currently considered the standard of care (AUA Guideline Panel on the Surgical Management of Stones)
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Fragmentation Time
Délai: up to 6 hours
|
The time to fragment a stone into small pieces (≤2 mm, which is our current institutional practice)
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up to 6 hours
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
---|---|---|
Total Operative Time
Délai: up to 6 hours
|
up to 6 hours
|
|
Pre-Operative Stone Size
Délai: Retrospective review of health chart at Baseline
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Pre-operative stone size (on pre-operative CT) will be reported in millimeters.
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Retrospective review of health chart at Baseline
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Number of Participants With Either Ureteral or Renal Location of Urinary Stone
Délai: up to 6 hours
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Urinary stone location will be classified as renal or ureter.
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up to 6 hours
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Number of Participants Treated for Either Single or Multiple Urinary Stones
Délai: up to 6 hours
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up to 6 hours
|
|
Density of Urinary Stones
Délai: up to 6 hours
|
up to 6 hours
|
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Number of Participants With Urinary Stone Fragment Size of 1, 2 or 3 mm
Délai: up to 6 hours
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Size of fragments created will be assessed using the laser fiber size as a comparison.
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up to 6 hours
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Collaborateurs et enquêteurs
Parrainer
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Mots clés
Termes MeSH pertinents supplémentaires
Autres numéros d'identification d'étude
- 2017-0252
- A539800 (Autre identifiant: UW Madison)
- SMPH/UROLOGY (Autre identifiant: UW Madison)
- Protocol Version 10/30/2017 (Autre identifiant: UW Madison)
Plan pour les données individuelles des participants (IPD)
Prévoyez-vous de partager les données individuelles des participants (DPI) ?
Informations sur les médicaments et les dispositifs, documents d'étude
Étudie un produit pharmaceutique réglementé par la FDA américaine
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