- ICH GCP
- Registro de ensaios clínicos dos EUA
- Ensaio Clínico NCT02028559
Segurança e eficácia da propulsão ultrassônica de cálculos renais
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Tipo de estudo
Inscrição (Real)
Estágio
- Não aplicável
Contactos e Locais
Locais de estudo
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Washington
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Seattle, Washington, Estados Unidos, 98108
- VA Puget Sound Health Care System
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Seattle, Washington, Estados Unidos, 98195
- University of Washington Department of Urology
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-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Descrição
Critério de inclusão:
- Indivíduos que se apresentam ao sistema médico da Universidade de Washington (UW) ou ao sistema de saúde de Veterans Affairs Puget Sound com pelo menos uma pedra no rim ou fragmento de pedra que é aparente no raio-x do rim-ureter-bexiga (KUB), tomografia computadorizada (TC), ou ultrassonografia.
- Indivíduos agendados para um procedimento de litotripsia
- Indivíduos que se apresentam à clínica ou ao pronto-socorro com cálculo agudo obstrutivo
Critérios de exclusão primários:
- Indivíduos menores de 18 anos
- Indivíduos com cálculos não ecogênicos
- Indivíduos incapazes ou não dispostos a cumprir os requisitos de acompanhamento
- Indivíduos com anormalidade de coagulação ou tomando anticoagulantes ou outros anticoagulantes em níveis clinicamente significativos
- Indivíduos com problemas de mobilidade que não conseguem deitar confortavelmente por até 30 minutos ou rolar de costas para o lado Indivíduos pertencentes a um grupo vulnerável (grávidas, deficientes mentais, deficientes físicos, prisioneiros, etc.)
Além disso, existem critérios de exclusão secundários para indivíduos submetidos a um evento de cálculo sintomático que são avaliados no momento do evento.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Ciência básica
- Alocação: Não randomizado
- Modelo Intervencional: Atribuição de grupo único
- Mascaramento: Solteiro
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
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.
|
|
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.
|
|
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.
|
|
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.
|
|
Sem intervenção: 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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|
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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.
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Measurement of Stone Motion Caused by Ultrasound
Prazo: 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
Prazo: 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
Prazo: 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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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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Medição de todos os efeitos adversos associados ao procedimento
Prazo: Medição ao longo de 3 semanas (telefonema semanal ou encontro por e-mail com o sujeito) mais revisão do prontuário médico do sujeito.
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O estudo mede a taxa de eventos adversos em nível de sujeito com início após o procedimento (grupo de tratamento) ou randomização (grupo de controle) durante o acompanhamento de 3 semanas determinado por um revisor cego como potencialmente relacionado ao dispositivo, procedimento ou a doença renal subjacente do sujeito.
(Endpoint secundário para ambos os SAPs).
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Medição ao longo de 3 semanas (telefonema semanal ou encontro por e-mail com o sujeito) mais revisão do prontuário médico do sujeito.
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Outras medidas de resultado
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
Number of Participants With Discomfort Related to the Device or Procedure
Prazo: At the time of the procedure. To be evaluated over an approximately 1 hour study.
|
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.
|
Colaboradores e Investigadores
Patrocinador
Colaboradores
Investigadores
- Investigador principal: Jonathan Harper, MD, University of Washington
Publicações e links úteis
Publicações Gerais
- 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.
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Real)
Conclusão do estudo (Estimado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimado)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
- Doenças urogenitais
- Doenças Urogenitais Masculinas
- Condições Patológicas, Anatômicas
- Doenças renais
- Doenças Urológicas
- Doenças Urogenitais Femininas
- Doenças urogenitais femininas e complicações na gravidez
- Cálculos urinários
- Condições Patológicas, Sinais e Sintomas
- Cálculos renais
- Nefrolitíase
- Cálculos
- Urolitíase
Outros números de identificação do estudo
- STUDY00002746
Plano para dados de participantes individuais (IPD)
Planeja compartilhar dados de participantes individuais (IPD)?
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