Efficacy of Contrast Enhanced Voiding Urosonography for Urodynamic Studies

April 27, 2021 updated by: Nora Kern, MD, University of Virginia
The investigators will assess the feasibility of replacing fluoroscopy/iodinated contrast with ultrasound/sulfur hexafluoride lipid-type A microspheres during routine urodynamic studies.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Urodynamic studies routinely involve instillation of iohexol (OmnipaqueTM), a low osmolality contrast agent, into the bladder followed by fluoroscopic imaging to assess for reflux or variant anatomy of the genitourinary system. Recently, sulfur hexafluoride lipid-type A microspheres (LumasonTM), an ultrasound contrast agent, has been approved in the United States for intravesicular administration in the pediatric population. Contrast enhanced voiding urosonography (CEvUS) is being increasingly utilized in the place of voiding cystourethrograms, with the major advantages being decreased (zero) radiation for the patient, as well as decreased cost. Given the similarity in procedure between urodynamic studies (UDS) and voiding cystourethrograms, we hypothesize that a urodynamic study may be performed with contrast enhanced ultrasound instead of fluoroscopy. We plan to continue enrollment from our feasibility study and perform an efficacy study by recruiting a group of 105 patients under the age of 18, who are willing to undergo their normally schedule UDS using CEvUS to image the study in place of fluoroscopy. The UDS typically consists of two cycles of bladder filling and voiding; we intend replace the use of fluoroscopy and iohexel with ultrasound and sulfur hexafluoride lipid-type A microspheres. This will decrease the time commitment and eliminate radiation exposure for the patient. Data to be analyzed will include images from the study and patient/caregiver preference. Results from the ceVUS images will be compared to images obtained during previous tests imaged with fluoroscopy from the same patients currently enrolled in this study. Bladder shape and morphology, bladder neck configuration and performance, structure of the urethra, presence and degree of vesicoureteral reflux, and active voiding images will all be compared to fluoroscopy images from previous studies. The purpose of the study is to demonstrate that ceVUS is effective as an imaging technique for urodynamic studies, with an ultimate goal of using ceVUS instead of fluoroscopy in all urodynamic and voiding studies in order to decrease pediatric radiation exposure. The hypothesis is that ceVUS will be as effective for imaging urodynamics studies as fluoroscopy.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
105

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • Virginia
      • Charlottesville, Virginia, United States, 22911
        • Recruiting
        • University of Virginia
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

No older than 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Pediatric patients presenting to UVA Pediatric Urology for follow up or repeat urodynamics study.

Description

Inclusion Criteria:

  • Age 0-17
  • Must have had prior urodynamic study at UVA

Exclusion Criteria:

  • Pregnant women (self-reported)
  • Fetuses
  • Neonates
  • Prisoners
  • Subjects with preexisting cardiac conditions (such as CHF and ventricular arrhythmias)
  • Subjects with a known hypersensitivity to Lumason

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Patients with or being evaluated for neurogenic bladder
Pediatric patients presenting to UVA Pediatric Urology for follow up or repeat urodynamics testing.
Drug: Contrast Enhanced Voiding Urosonography with Urodynamic Testing
We will be using contrast enhanced voiding urosonography to image urodynamic testing on patients with neurogenic bladder.
Other Names:
  • CeVUS
  • Contrast Enhanced Voiding Urosonography
Diagnostic test: Urodynamic Testing
We will be using contrast enhanced voiding urosonography to image urodynamic testing on patients with neurogenic bladder.
Other Names:
  • Urodynamics

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Bladder shape and morphology
Time Frame: Procedure (At time of urodynamic investigation)
Comparison of previous fluroscopy images and ceVUS images
Procedure (At time of urodynamic investigation)
Bladder neck configuration
Time Frame: Procedure (At time of urodynamic investigation)
Comparison of previous fluroscopy images and ceVUS images
Procedure (At time of urodynamic investigation)
Structure of urethra
Time Frame: Procedure (At time of urodynamic investigation)
Comparison of previous fluroscopy images and ceVUS images
Procedure (At time of urodynamic investigation)
Presence and degree of VUR
Time Frame: Procedure (At time of urodynamic investigation)
Comparison of previous fluroscopy images and ceVUS images
Procedure (At time of urodynamic investigation)
Images of active voiding
Time Frame: Procedure (At time of urodynamic investigation)
Comparison of previous fluroscopy images and ceVUS images
Procedure (At time of urodynamic investigation)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Patient/caregiver preference
Time Frame: Immediately following urodynamic investigation or up to 7 days after by phone
Comparison survey
Immediately following urodynamic investigation or up to 7 days after by phone

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of Virginia

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Nora G Kern, MD, University of Virginia

Publications and helpful links

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General Publications

Helpful Links

Study record dates

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Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 2, 2021

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 2, 2022

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 2, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
February 1, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 3, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
February 4, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 28, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 27, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • HSR200346

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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Conditions

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