Contrast-Enhanced Ultrasound Diagnosis of Acute Appendicitis

July 15, 2020 updated by: Harriet Joan Paltiel, Boston Children's Hospital
This study evaluates the ability of contrast-enhanced ultrasound to improve the diagnosis of acute appendicitis in children compared to conventional ultrasound.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Detailed Description

Acute appendicitis is the most common surgical emergency in children. Diagnostic evaluation for possible appendicitis frequently leads to imaging studies. Magnetic resonance imaging (MRI) and computed tomography (CT) are currently the gold-standard techniques for the diagnosis or exclusion of acute appendicitis. However, these methods not always immediately available; may require administration of intravenous contrast material with the potential for allergic reactions and nephrotoxicity; and, in the case of CT, requires the administration of ionizing radiation that is linked to the long-term development of radiation-induced cancers. The current study will evaluate a potentially safer, radiation-free diagnostic method for acute appendicitis, using contrast-enhanced ultrasound to provide a more accurate means of visualizing the appendix than conventional US imaging.

Study Type

Interventional

Phase

  • Phase 1

Contacts and Locations

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

Study Locations

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Boston Children's Hospital

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

Ages Eligible for Study

8 years to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Children who have had a conventional abdominal US study to rule out acute appendicitis and are scheduled for an MRI or CT examination.

Exclusion Criteria:

  • Children with serious comorbid conditions, including but not restricted to severe cardiac, pulmonary, renal, or hepatic disease; prior bone marrow or solid organ transplant; cancer; or presence of a ventriculoperitoneal shunt.
  • Children with an allergy to either the active or inactive components of Lumason.
  • Pregnant or nursing patients.

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: IV Contrast-Enhanced US
IV sulfur hexafluoride lipid-type A microspheres, 0.03 mL/kg, 2 doses per examination, total dose not to exceed 4.8 mL. Single examination per patient.
Drug: Sulfur hexafluoride lipid-type A microspheres
Contrast-enhanced US imaging of the appendix
Other Names:
  • Lumason

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Contrast-enhanced ultrasound diagnosis of acute appendicitis
Time Frame: One week
The efficacy of contrast-enhanced US in improving the diagnosis of acute appendicitis compared to conventional US will be assessed.
One week

Collaborators and Investigators

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

Sponsor

Boston Children's Hospital

Investigators

  • Principal Investigator: Harriet Paltiel, MDCM, Boston Children's Hospital

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 15, 2020

Primary Completion (Actual)

July 15, 2020

Study Completion (Actual)

July 15, 2020

Study Registration Dates

First Submitted

September 25, 2017

First Submitted That Met QC Criteria

September 25, 2017

First Posted (Actual)

September 28, 2017

Study Record Updates

Last Update Posted (Actual)

July 17, 2020

Last Update Submitted That Met QC Criteria

July 15, 2020

Last Verified

July 1, 2020

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • IRB-P00025591

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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