SonoVue®-Enhanced Ultrasound (US) Versus Unenhanced US for Focal Liver Lesion Characterization

Bracco Diagnostics, Inc353 enrolled

Overview

The purpose of this study is to demonstrate the Sensitivity and Specificity of SonoVue®-enhanced ultrasound is superior to that of unenhanced ultrasound for the characterization of benign versus malignant FLLs using final diagnosis based on histology or combined imaging (CE-CT and/or CE MRI)/clinical data as truth standard.

Unit of analysis for the outcome measures was the lesion, equivalent to the subject, since each subject had a single lesion that was to be characterized.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

353

Conditions

Liver Neoplasms

Interventions

SonoVue®DRUG

SonoVue (2.4 mL)

Eligibility

Sex: ALLMin age: 18 Years

Medical Language ↔ Plain English

Inclusion Criteria: * Male/female. * Provides written Informed Consent and is willing to comply with protocol requirements. * Is at least 18 years of age. * Has at least 1 FLL (target lesion) requiring work-up for characterization. Target lesions may include those: Incidentally detected, In subjects with chronic hepatitis or liver cirrhosis, In subjects with known history of malignancy. * Is scheduled for surgical removal or biopsy of the target lesion from 24 hours to 30 days after the SonoVue® administration OR * In case tissue biopsy is not indicated nor surgery planned, is scheduled for or has performed a CE-CT and/or CE-MRI of the target lesion from 30 days to 48 hours prior to or from 24 hours to 30 days after the administration of SonoVue®. Exclusion Criteria: * Has an acoustic window insufficient for adequate ultrasound examination of the liver. * Has a FLL that cannot be identified with unenhanced ultrasound. * Has received or is scheduled for antineoplastic chemotherapy or an invasive procedure in the time period between test procedures and truth standard assessments which may have modified the target lesion. * Is receiving any other contrast medium, within the 48 hours before and up to 24 hours following the administration of SonoVue®. * Has previously been enrolled in and completed this study. * Known right to left cardiac shunt, bidirectional or transient. * Has any known allergy to 1 or more of the ingredients of the investigational product (sulfur hexafluoride or to any components of SonoVue®). * Has any contraindication to 1 of the planned imaging procedures (ultrasound, CT or MRI), e.g., implants, claustrophobia, inadequate medical conditions etc. * Has received an investigational compound within 30 days before admission into this study. * Has any medical condition or other circumstances which would significantly decrease the chances of obtaining reliable data, achieving study objectives, or completing the study and/or post-dose follow-up examinations. * Is determined by the Investigator that the subject is clinically unsuitable for the study. * Is a pregnant or lactating female. Exclude the possibility of pregnancy by: testing on site at the institution serum βHCG within 24 hours prior to the start of SonoVue® administration, surgical history (e.g., tubal ligation or hysterectomy), post menopausal with a minimum 1 year without menses.

Locations (1)

Bracco Diagnostics Inc.

Princeton, New Jersey, United States

Outcomes

Primary Outcomes

Sensitivity: Percentage of True Positive Lesions Among All Malignant Lesions Per Truth Standard

Sensitivity of SonoVue-enhanced ultrasound (SonoVue CE-US) versus unenhanced ultrasound (UE-US) for characterization of malignant focal liver lesions (FLLs) using the diagnosis provided by each of the 3 off-site assessors (blinded to patient data) for the Intent-to-diagnose (ITD) population. Unit of analysis was the lesion, equivalent to subject, since each subject had a single lesion to be characterized. True positive: subject with a target lesion characterized as malignant by both ultrasonography and the truth standard. Truth standard: CE-CT and/or CE-MRI examination OR tissue pathology/histology from surgical resection/biopsy OR 6-month follow up Calculated as (number of true positive lesions/number of malignant lesions per truth standard) x 100

Time frame: 24 hours to 6 months

Specificity: Percentage of True Negative Lesions Among All Benign Lesions Per Truth Standard'

Specificity of SonoVue-enhanced versus unenhanced ultrasound for characterization of benign FLLs, using the diagnosis provided by each of the 3 off-site assessors (blinded to patient data) for the ITD population. Unit of analysis was the lesion, equivalent to the subject, since each subject had a single lesion that was to be characterized. True negative: subject with a target lesion characterized as benign by both ultrasonography and truth standard. Among the 259 ITD participants, only 140 participants (lesions) were benign based on the truth standard. Truth standard: CE-CT and /or CE-MRI examination OR tissue pathology/histology from surgical resection/biopsy OR 6-month follow up. Calculated as (number of true negative lesions/number of benign lesions per truth standard) x 100.

Time frame: 24 hours to 6 months

Secondary Outcomes

Accuracy: Percentage of True Positive and True Negative Among All Lesions

Accuracy of SonoVue-enhanced versus unenhanced ultrasound for characterization of malignant and benign FLLs, using the diagnosis provided by each of the 3 off-site assessors (blinded to patient data) for the ITD population. Unit of analysis was the lesion, equivalent to the subject, since each subject had a single lesion that was to be characterized. True positive: subject with a target lesion characterized as malignant by both ultrasonography and truth standard. True negative: subject with a target lesion characterized as benign by both ultrasonography and truth standard. Truth standard: CE-CT and /or CE-MRI examination OR tissue pathology/histology from surgical resection/biopsy OR 6-month follow up. Calculated as (number of true positive and true negative lesions/number of total lesions per truth standard) x 100.

Data from ClinicalTrials.gov

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