NCT06689683

Brief Summary

Shock wave lithotripsy (SWL) is a noninvasive method widely used as the first step in treating stone disease. This study aimed to reduce radiation exposure to patients and practitioners during SWL sessions by extending the intervals of fluoroscopy controls. The main questions it aims to answer are:

  • Will radiation exposure be reduced?
  • Will the stone-free status be affected? The researchers will compare the fluoroscopic control intervals of 250 shocks and 500 shocks. Participants will:
  • Take to a maximum of 3 sessions.
  • Check once a week
  • Group 1 was fluoroscopically monitored every 250 shocks, and Group 2 was fluoroscopically monitored every 500 shocks

Trial Health

87
On Track

Trial Health Score

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

Enrollment
158

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jul 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 27, 2020

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 5, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 5, 2024

Completed
10 months until next milestone

First Submitted

Initial submission to the registry

November 9, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

November 14, 2024

Completed
Last Updated

November 14, 2024

Status Verified

November 1, 2024

Enrollment Period

3.4 years

First QC Date

November 9, 2024

Last Update Submit

November 13, 2024

Conditions

Keywords

kidney stoneshock wave lithotripsyradiation

Outcome Measures

Primary Outcomes (1)

  • evaluate The effect of two different fluoroscopic activation intervals on the stone-free rate.

    Session intervals were determined as one week, and patients with residues visible on the KUB radiography before the session were included in the new session. At the end of the treatment, direct radiography and ultrasound of the urinary system was performed at the end of the first month. Patients with stones larger than 4 mm were considered to have had an unsuccessful treatment.

    1 month after the end of treatment

Secondary Outcomes (2)

  • Secondary endpoints were total fluoroscopy time and complications.

    From registration until the 1st month after the end of treatment.

  • Secondary endpoints were complications.

    From registration until the 1st month after the end of treatment.

Study Arms (2)

250 shocks

ACTIVE COMPARATOR

In our clinic, it is standard practice to perform a fluoroscopic check after every 250 shocks during the SWL session. Group 1 was fluoroscopically monitored every 250 shocks.

Device: Shock wave lithotripsy

500 shocks

ACTIVE COMPARATOR

Group 2 was fluoroscopically monitored every 500 shocks.

Device: Shock wave lithotripsy

Interventions

SWL works on the principle of focusing on the calculus using fluoroscopy. There has yet to be a consensus on the optimal frequency of fluoroscopic monitoring in the literature.

250 shocks500 shocks

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • radiopaque renal pelvic stones smaller than 2 centimeters.

You may not qualify if:

  • anatomical anomalies, coagulation disorders, non-opaque calculi, active urinary infection and distal obstruction

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Health Science University Kartal Dr. Lütfi Kırdar City Hospital

Istanbul, Turkey (Türkiye)

Location

MeSH Terms

Conditions

Kidney Calculi

Condition Hierarchy (Ancestors)

NephrolithiasisKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesUrolithiasisUrinary CalculiMale Urogenital DiseasesCalculiPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

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
Principal investigator

Study Record Dates

First Submitted

November 9, 2024

First Posted

November 14, 2024

Study Start

July 27, 2020

Primary Completion

January 5, 2024

Study Completion

January 5, 2024

Last Updated

November 14, 2024

Record last verified: 2024-11

Data Sharing

IPD Sharing
Will not share

Locations