- ICH GCP
- US-Register für klinische Studien
- Klinische Studie NCT02028559
Sicherheit und Wirksamkeit des Ultraschallantriebs von Nierensteinen
Studienübersicht
Status
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
Studientyp
Einschreibung (Tatsächlich)
Phase
- Unzutreffend
Kontakte und Standorte
Studienorte
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Washington
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Seattle, Washington, Vereinigte Staaten, 98108
- VA Puget Sound Health Care System
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Seattle, Washington, Vereinigte Staaten, 98195
- University of Washington Department of Urology
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Teilnahmekriterien
Zulassungskriterien
Studienberechtigtes Alter
Akzeptiert gesunde Freiwillige
Beschreibung
Einschlusskriterien:
- Personen, die sich im medizinischen System der University of Washington (UW) oder im Gesundheitssystem Veterans Affairs Puget Sound mit mindestens einem Nierenstein oder Steinfragment vorstellen, das auf Nieren-Harnleiter-Blase (KUB)-Röntgen, Computertomographie (CT) erkennbar ist, oder Ultraschallbildgebung.
- Personen, die für ein Lithotripsieverfahren vorgesehen sind
- Personen, die sich mit einem akuten obstruktiven Stein in der Klinik oder Notaufnahme vorstellen
Primäre Ausschlusskriterien:
- Personen unter 18 Jahren
- Personen mit nicht echogenen Steinen
- Personen, die die Folgeanforderungen nicht erfüllen können oder wollen
- Personen mit einer Gerinnungsstörung oder die Einnahme von Blutverdünnern oder anderen Antikoagulanzien in klinisch signifikanten Mengen
- Personen mit Mobilitätsproblemen, die nicht in der Lage sind, bis zu 30 Minuten bequem zu liegen oder sich vom Rücken auf die Seite zu rollen Personen, die einer gefährdeten Gruppe angehören (Schwangere, geistig Behinderte, Körperbehinderte, Gefangene usw.)
Darüber hinaus gibt es sekundäre Ausschlusskriterien für Personen, die sich einem symptomatischen Steinereignis unterziehen, die zum Zeitpunkt des Ereignisses bewertet werden.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Grundlegende Wissenschaft
- Zuteilung: Nicht randomisiert
- Interventionsmodell: Einzelgruppenzuweisung
- Maskierung: Single
Waffen und Interventionen
Teilnehmergruppe / Arm |
Intervention / Behandlung |
|---|---|
|
Experimental: First in Human (FIH)
Initial phase of the trial.
Includes a broad spectrum of population groups (e.g. de novo, concurrent with URS, residual fragments) to demonstrate feasibility.
Intervention consists of the non-invasive application of ultrasound to move stones within the kidney and ureter.
Procedure conducted with the Propulse 1 device and C5-2 transducer.
Subjects (n = 15) receive up to 40 push bursts.
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Move kidney stones with Propulse 1 device.
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Experimental: De Novo Small Stone
Segment of the trial focused specifically on subjects with small (≤ 5 mm) stones under observation management.
Intervention consists of the non-invasive application of ultrasound to move stones within the kidney and ureter with the goal to facilitate passage.
Procedure is conducted with the Propulse 1 device and SC-X transducer.
Subjects (n = 2) receive multiple Push bursts up to a maximum cumulative dose exposure of 5 minutes.
Each burst is a maximum of 3 seconds in duration and 200 W/cm2 in intensity.
|
Move kidney stones with Propulse 1 device.
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Experimental: Concurrent with URS
Segment of the trial focused specifically on subjects undergoing ultrasonic propulsion concurrently with their ureteroscopy guided laser lithotripsy procedure.
Study provides visual observation of stone motion and any potential tissue injury.
Intervention consists of the non-invasive application of ultrasound to move stones within the kidney and ureter.
Procedure is conducted with the Propulse 1 device and SC-X transducer.
Subjects (n = 18) receive multiple Push bursts up to a maximum cumulative dose exposure of 5 minutes.
Each burst is a maximum of 3 seconds in duration and 200 W/cm2 in intensity.
|
Move kidney stones with Propulse 1 device.
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|
Experimental: Obstructing Stone - Pushing only
Segment of the trial focused specifically on subjects reporting to clinic or the emergency department with an obstructing stone.
Intervention consists of the non-invasive application of ultrasound to relieve pain and facilitate passage.
Procedure is conducted with the Propulse 1 device and SC-X transducer.
Subjects (n = 16) receive multiple Push bursts up to a maximum cumulative dose exposure of 5 minutes.
Each burst is a maximum of 3 seconds in duration and 200 W/cm2 in intensity.
|
Move kidney stones with Propulse 1 device.
|
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Experimental: Residual Fragment (Treatment group)
Segment of the trial focused specifically on subjects with small (≤ 5 mm) residual fragments following lithotripsy.
This is the Treatment arm of a randomized control trial.
Intervention consists of the non-invasive application of ultrasound to move stones within the kidney and ureter with the goal to facilitate passage.
Procedure is conducted with the Propulse 1 device and SC-X transducer.
Subjects (n = 54) receive multiple Push bursts up to a maximum cumulative dose exposure of 5 minutes.
Each burst is a maximum of 3 seconds in duration and 200 W/cm2 in intensity.
|
Move kidney stones with Propulse 1 device.
|
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Kein Eingriff: Residual Fragment (Control group)
Segment of the trial focused specifically on subjects with small (≤ 5 mm) residual fragments following lithotripsy.
This is the Control arm of a randomized control trial.
Subjects (n = 54) follow same protocol as Residual Fragment (Treatment group) but do not receive the ultrasonic propulsion intervention.
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Experimental: Obstructing Stone - Pushing + Dislodging
Segment of the trial focused specifically on subjects reporting to clinic or the emergency department with an obstructing stone.
Participants were separate from the Obstructing Stone - Pushing only based on a stone skin-to-stone distance < 8 mm.
Intervention consists of the non-invasive application of ultrasound to relieve pain and facilitate passage.
Procedure is conducted with the Propulse 1 device and SC-X transducer.
Subjects (n = 13) receive both Dislodging and Push bursts up to a maximum cumulative dose exposure of 5 minutes.
This is the only population to receive the Dislodging bursts, which consist of higher amplitude (up to 7 MPa) and shorter duration pulses compared to pushing.
The Push burst is a maximum of 3 seconds in duration and 200 W/cm2 in intensity.
|
Move kidney stones with Propulse 1 device.
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Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Measurement of Stone Motion Caused by Ultrasound
Zeitfenster: At the time of the procedure. To be evaluated with each therapy pulse over an approximately 1-hour study. Confirmed with post-procedure review of the study video.
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Percentage of study participants for which stone motion was observed on the real-time ultrasound images.
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At the time of the procedure. To be evaluated with each therapy pulse over an approximately 1-hour study. Confirmed with post-procedure review of the study video.
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Measurement of Stone Passage
Zeitfenster: Measurement occurs over 3 weeks (weekly phone call or email encounter with the subject) plus review of the subject's medical chart up to the point the subject is exited from the study.
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The percentage of participants reporting visual observation of stone passage or confirmed with follow-up imaging.
For the residual fragment RCT population specifically, the percentage of participants reporting visual observation of stone passage during the 3-week follow-up period after the procedure or randomization (Control group).
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Measurement occurs over 3 weeks (weekly phone call or email encounter with the subject) plus review of the subject's medical chart up to the point the subject is exited from the study.
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Measurement of Relapse
Zeitfenster: Measurement up to 5 years post-procedure. This includes a phone call or email exchange semi-annually for up to 3-years and a medical record review (including imaging) semi-annually for up to 5-years.
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The percentage of participants experiencing stone relapse defined as: an unscheduled, symptomatic visit for stones on the study side, surgery for stones on the study side, or stone growth of a residual fragment measured by clinical imaging exams.
This measurement is specific to the residual fragment population and associated randomized control trial.
Only a single relapse event is counted per participant, though a participant could experience more than one event.
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Measurement up to 5 years post-procedure. This includes a phone call or email exchange semi-annually for up to 3-years and a medical record review (including imaging) semi-annually for up to 5-years.
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Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Messung aller mit dem Eingriff verbundenen Nebenwirkungen
Zeitfenster: Messung über 3 Wochen (wöchentlicher Telefonanruf oder E-Mail-Kontakt mit der Testperson) plus Überprüfung der Krankenakte der Testperson.
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Die Studie misst die Rate unerwünschter Ereignisse auf Probandenebene, die nach dem Eingriff (Behandlungsgruppe) oder nach Randomisierung (Kontrollgruppe) auftreten, während der 3-wöchigen Nachuntersuchung, die von einem verblindeten Gutachter als potenziell mit dem Gerät, dem Eingriff usw. zusammenhängend eingestuft wurde die zugrunde liegende Nierenerkrankung des Probanden.
(Sekundärer Endpunkt für beide SAPs).
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Messung über 3 Wochen (wöchentlicher Telefonanruf oder E-Mail-Kontakt mit der Testperson) plus Überprüfung der Krankenakte der Testperson.
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Andere Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Number of Participants With Discomfort Related to the Device or Procedure
Zeitfenster: At the time of the procedure. To be evaluated over an approximately 1 hour study.
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Pre-Procedure: The participant will be asked directly what discomfort, on a scale of 0 (no pain) to 10 (worst pain possible), they are experiencing and to point to where the discomfort/pain is located. This is the participant's recorded baseline measure. During Procedure: The participant will be asked directly if they are experiencing any new or different discomfort, on a scale of 0 (no pain) to 10 (worst pain possible), and to point to where the discomfort/pain is located. Any new or different discomfort above baseline will be assumed related to the device or procedure; there is no minimum threshold for reporting. Post Procedure: The participant will be asked directly what discomfort, on a scale of 0 (no pain) to 10 (worst pain possible), they are experiencing and to point to where the discomfort/pain is located. Any new or different discomfort above baseline will be assumed related to the device or procedure; there is no minimum threshold for reporting. |
At the time of the procedure. To be evaluated over an approximately 1 hour study.
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Mitarbeiter und Ermittler
Sponsor
Mitarbeiter
Ermittler
- Hauptermittler: Jonathan Harper, MD, University of Washington
Publikationen und hilfreiche Links
Allgemeine Veröffentlichungen
- Dai JC, Sorensen MD, Chang HC, Samson PC, Dunmire B, Cunitz BW, Thiel J, Liu Z, Bailey MR, Harper JD. Quantitative Assessment of Effectiveness of Ultrasonic Propulsion of Kidney Stones. J Endourol. 2019 Oct;33(10):850-857. doi: 10.1089/end.2019.0340. Epub 2019 Sep 25.
- Harper JD, Cunitz BW, Dunmire B, Lee FC, Sorensen MD, Hsi RS, Thiel J, Wessells H, Lingeman JE, Bailey MR. First in Human Clinical Trial of Ultrasonic Propulsion of Kidney Stones. J Urol. 2016 Apr;195(4 Pt 1):956-64. doi: 10.1016/j.juro.2015.10.131. Epub 2015 Oct 30.
- Harper JD, Metzler I, Hall MK, Chen TT, Maxwell AD, Cunitz BW, Dunmire B, Thiel J, Williams JC, Bailey MR, Sorensen MD. First In-Human Burst Wave Lithotripsy for Kidney Stone Comminution: Initial Two Case Studies. J Endourol. 2021 Apr;35(4):506-511. doi: 10.1089/end.2020.0725. Epub 2020 Nov 5.
- Hall MK, Thiel J, Dunmire B, Samson PC, Kessler R, Sunaryo P, Sweet RM, Metzler IS, Chang HC, Gunn M, Dighe M, Anderson L, Popchoi C, Managuli R, Cunitz BW, Burke BH, Ding L, Gutierrez B, Liu Z, Sorensen MD, Wessells H, Bailey MR, Harper JD. First Series Using Ultrasonic Propulsion and Burst Wave Lithotripsy to Treat Ureteral Stones. J Urol. 2022 Nov;208(5):1075-1082. doi: 10.1097/JU.0000000000002864. Epub 2022 Nov 1.
- Sorensen MD, Dunmire B, Thiel J, Cunitz BW, Burke BH, Levchak BJ, Popchoi C, Holmes AE, Kucewicz JC, Hall MK, Dighe M, Dai JC, Cormack FC, Liu Z, Bailey MR, Porter MP, Harper JD. Randomized Controlled Trial of Ultrasonic Propulsion-Facilitated Clearance of Residual Kidney Stone Fragments vs Observation. J Urol. 2024 Dec;212(6):811-820. doi: 10.1097/JU.0000000000004186. Epub 2024 Aug 15.
- Yang CC, Keating EE, Managuli R, Honssinger N, Holt SK, Desai AC. A Randomized Controlled Trial of Ultrasonic Propulsion-Facilitated Clearance of Residual Renal Stone Fragments vs Observation. J Urol. 2025 Jul;214(1):3-9. doi: 10.1097/JU.0000000000004501. Epub 2025 Mar 3.
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Primärer Abschluss (Tatsächlich)
Studienabschluss (Geschätzt)
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Geschätzt)
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
- Pathologische Zustände, Anatomisch
- Nierenerkrankungen
- Urologische Erkrankungen
- Weibliche Urogenitalerkrankungen
- Weibliche Urogenitalerkrankungen und Schwangerschaftskomplikationen
- Harnsteine
- Pathologische Zustände, Anzeichen und Symptome
- Nierensteine
- Nephrolithiasis
- Kalkül
- Urolithiasis
Andere Studien-ID-Nummern
- STUDY00002746
Plan für individuelle Teilnehmerdaten (IPD)
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