Imagio Feasibility Multi-Reader, Multi-Case Study

July 14, 2021 updated by: Seno Medical Instruments Inc.

Imagio Feasibility Multi-Reader, Multi-Case Study of Optoacoustic Images Versus Imagio Ultrasound to Guide Decision to Biopsy

Controlled, blinded, multi-reader, multi-case study

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The Imagio Feasibility Reader Study-01 Study is intended to evaluate if a subsequent pivotal study can be implemented to test prospective hypotheses for pre-specified effectiveness endpoints with an acceptable sample size. The Feasibility Study will be based on ITD masses from the PIONEER (NCT01943916) Pivotal study to simultaneously reflect the distributions with and without mammograms as well as site CDU BI-RADS scores within benign and malignant masses as strata. The study population will be split into 3 cohorts - Cohort 1, the 120 patient ITD Population used to run the primary/ secondary analyses. Cohort 2, 30 patients used to run exploratory analyses on false negative rate and Cohort 3, 5 patients used to run exploratory analyses on specific mass types

Study Type

Interventional

Enrollment (Actual)

155

Phase

  • Not Applicable

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

    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19103
        • American College of Radiology

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Description

Inclusion Criteria:

- Female subjects participating in the PIONEER-0 Study of the Imagio Breast Imaging System with known clinical status

Exclusion Criteria:

- Female subjects who did not have known clinical status in the PIONEER-0 Study of the Imagio Breast Imaging System with known clinical status

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: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Imagio IUS
Read 1 - Mammo (as available) + Imagio Ultrasound
Imagio ultrasound images to be reviewed as part of the reader study
Mammography images as available per standard of care
Other Names:
  • Mammo
Experimental: Imagio (IUS+OA)
Read 2 - Mammo (as available) + (Imagio Ultrasound + OA)
Mammography images as available per standard of care
Other Names:
  • Mammo
The Imagio ultrasound and opto-acoustic images to be reviewed as part of the reader study

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The Gain in Imagio IUS Alone Specificity vs Imagio (IUS+OA) Specificity at Fixed 95-99% Sensitivity (fSp), Cohort 1
Time Frame: Baseline to 12 month follow-up
Primary effectiveness endpoint was the specificity of Imagio [IUS+OA] compared to IUS alone at fixed 95-99% sensitivity (fSp) interpolated from the area under the curve (AUC) of receiver operating characteristic (ROC) curves, averaged across all 10 independent readers. Both imaging modalities (IUS alone and IUS+OA) were read for each subject (subject as own control). Results for each imaging modality compared to biopsy diagnosis or 12-month follow-up ruling of benign as determined by truth panel (ground truth).
Baseline to 12 month follow-up

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Partial Receiver Operating Characteristic (ROC) Area Under the Curve (pAUC), Cohort 1
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months (≥11 months)
pAUC considers only the region of the ROC space that corresponds to clinically relevant values of sensitivity defined as 95% to 99% for Imagio [IUS+OA] vs. IUS alone; averaged across 10 readers.
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months (≥11 months)
BiRads [Breast Imaging Reporting and Data System] Downgrades and Upgrades- Cohort 1
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
The cumulative effect of downgrades and upgrades for benign masses expressed as the net gain of True Negative reads
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
The Negative Likelihood Ratio (NLR) for IUS vs. Imagio® (IUS+OA), Cohort 1
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months (≥11 months)
NLR (Imagio [IUS+OA] vs. IUS alone); averaged across 10 readers (all readers).
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months (≥11 months)
SenoGram Usage Cohort 1 for Imagio (IUS+OA) Only
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
SenoGram Utilization by number of readers using the SenoGram reported by the readers. SenoGram is not used for Imagio IUS Arm only Imagio (IUS+OA)
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
SenoGram Performance
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
Sensitivity of SenoGram estimated from cross-validation - Cohort 1
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
SenoGram Performance
Time Frame: Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months
Specificity of SenoGram estimated from cross-validation
Imagio [IUS+OA] and IUS readings relative to biopsy results and TRUTH PANEL review of NDU cases with follow-up at 12 months

Collaborators and Investigators

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

Sponsor

Collaborators

Investigators

  • Study Director: A. Thomas Stavros, MD, Seno Medical

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)

November 13, 2018

Primary Completion (Actual)

December 9, 2018

Study Completion (Actual)

December 9, 2018

Study Registration Dates

First Submitted

September 28, 2018

First Submitted That Met QC Criteria

October 11, 2018

First Posted (Actual)

October 17, 2018

Study Record Updates

Last Update Posted (Actual)

August 6, 2021

Last Update Submitted That Met QC Criteria

July 14, 2021

Last Verified

July 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • Reader-01

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

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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