NCT05872230

Brief Summary

Flexible ureteroscopy is characterized as first-line therapy for renal stones \< 2 cm in size. Stones are commonly treated with dusting or fragmentation techniques which requires passage of stone fragments after surgery. Quoted stone free rate after flexible ureteroscopy is approximately 40-60% with a dusting technique. Residual fragments are often under 1mm in size and can layer in the lower pole of the kidney, complicating spontaneous stone passage. Improving the stone free rate after surgery decreases the need for secondary surgeries and decreases risk of future stone events. Numerous techniques have been proposed to increase stone passage including positional changes and percussion therapy. To date, there is overall limited data a lack of techniques that can be readily available in the outpatient setting, easily added to scheduled appointments, reproducible results and well tolerated by patients.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
13

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2024

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 4, 2023

Completed
20 days until next milestone

First Posted

Study publicly available on registry

May 24, 2023

Completed
8 months until next milestone

Study Start

First participant enrolled

February 1, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 15, 2025

Completed
Last Updated

May 29, 2025

Status Verified

May 1, 2025

Enrollment Period

1.3 years

First QC Date

May 4, 2023

Last Update Submit

May 22, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Patients who are able to tolerate and complete the percussion therapy.

    If patients can tolerate the percussion therapy in the treatment arms. This is evaluated by patients being able to complete the percussion therapy session and completing pain questionnaires.

    Postop day 0-10.

  • Stone Free Rate.

    Patients will have standard postoperative imaging at six weeks, as is standard of care. Presence of stone fragments and fragment size will determine the postoperative stone free rate.

    6 weeks after surgery.

Secondary Outcomes (2)

  • weight of passed stone fragments

    6 weeks.

  • Unplanned return visits.

    6 weeks.

Study Arms (4)

Control

NO INTERVENTION

Patient receives standard postoperative care with no percussion therapy.

PACU percussion

EXPERIMENTAL

Patient receives percussion therapy in the PACU immediately after surgery.

Device: Massage Percussion Therapy device

Postoperative appointment percussion

EXPERIMENTAL

Patient receives percussion therapy in the office on the day of follow up.

Device: Massage Percussion Therapy device

Both PACU and Postop appointment percussion.

EXPERIMENTAL

Patient receives percussion therapy in the PACU and receives percussion therapy in the office on the day of follow up.

Device: Massage Percussion Therapy device

Interventions

Using massage percussion postoperatively.

Both PACU and Postop appointment percussion.PACU percussionPostoperative appointment percussion

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Any patient after treatment of renal stones with ureteroscopy during which residual stone fragments (less than 2mm by surgeon estimation) is left in the kidney.
  • Must be 18 years or older
  • Must be able to give consent
  • Preoperative abdominal CT

You may not qualify if:

  • On pharmacologic anticoagulation. Aspirin up to 81mg will be allowed.
  • Cannot tolerate flank, prone or Trendelenburg position.
  • Cannot tolerate percussion.
  • History of acute rib fractures or osteopenia/osteoporosis.
  • Any patient who is on a fluid intake restriction.
  • Pregnancy
  • Untreated UTI
  • History of struvite stones
  • Requiring a planned secondary stone procedure within 90 days
  • If stent must stay in longer than 10 days
  • Ureteral stones (without renal stones)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Montreal

Montreal, Canada

Location

MeSH Terms

Conditions

Nephrolithiasis

Condition Hierarchy (Ancestors)

Kidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisMale Urogenital Diseases

Study Officials

  • Ryan Hsi

    VUMC

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Urologist

Study Record Dates

First Submitted

May 4, 2023

First Posted

May 24, 2023

Study Start

February 1, 2024

Primary Completion

May 15, 2025

Study Completion

May 15, 2025

Last Updated

May 29, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations