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Tomosynthesis vs. Contrast-Enhanced Mammography in Women With Personal History of Breast Cancer in Western Pennsylvania

Improving Surveillance of Women With Personal History of Breast Cancer Using Contrast-Enhanced Mammography (CEM)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04085510
Acronym
TOCEM
Enrollment
1647
Registered
2019-09-11
Start date
2019-10-23
Completion date
2028-12-30
Last updated
2026-03-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer, Breast Cancer Female, Breast Neoplasms, Neoplasms

Keywords

breast cancer screening, digital breast tomosynthesis, contrast-enhanced mammogram

Brief summary

This is a prospective clinical trial that will examine if contrast-enhanced mammography substantially improves breast cancer detection compared to mammography with tomosynthesis, with minimal increase in false-positives, in women with a personal history of breast cancer.

Detailed description

The investigators expect to show in a prospective clinical trial that, in women with a personal history of breast cancer, contrast-enhanced mammography substantially improves breast cancer detection compared to mammography with tomosynthesis, with minimal increase in false positives. The investigators expect a substantial increase in node-negative invasive cancers in particular. Because DBT will be interpreted first by one reader, and CEM will be interpreted first, and independently, by a second reader, there will also be an assessment of performance of tomosynthesis alone or CEM alone in this population. Participants will be invited to three rounds of annual screening with CEM. CEM must be performed at the time of or within 6 weeks of routine annual mammogram with tomosynthesis.

Interventions

DEVICEContrast-enhanced mammogram

Contrast-enhanced mammography (CEM) is a new FDA-approved exam that is similar to magnetic resonance imaging (MRI) in depicting breast cancers due to increased and leaky blood vessels. Contrast-enhanced mammography is used as an adjunct following mammography and/or ultrasound examinations to localize a known or suspected lesion.

Sponsors

Wendie Berg
Lead SponsorOTHER
Breast Cancer Research Foundation
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
SCREENING
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
30 Years to 85 Years
Healthy volunteers
Yes

Inclusion criteria

-Asymptomatic women, ages 30-85, with a personal history of breast cancer who have had at least one routine mammogram since treatment.

Exclusion criteria

* Women with a history of prior iodinated contrast reaction * Women with implant(s) in the breasts to be screened (as this creates artifacts and diagnostic performance of imaging in women with implants likely does not generalize to those without implants, and the sample size with implants would be too small to infer conclusions) * Women who have had bilateral mastectomy * Women with a history of kidney failure or estimated glomerular filtration rate (eGFR) \< 30 mL/min * Pregnancy or lactation * Women actively being treated for cancer of any type with chemotherapy * Lump or other breast symptoms * Abnormality on prior breast imaging that is being followed.

Design outcomes

Primary

MeasureTime frameDescription
Cancer Detection48 monthsNumber of participants with cancer detected with contrast-enhanced mammography compared to tomosynthesis. Number of patients recalled for additional testing by each imaging test who do not have cancer (false positives). Outcomes will be assessed for both prevalence and incidence screens.

Secondary

MeasureTime frameDescription
Reader Validation48 monthsReader validation will be performed at study conclusion: number of cancers detected with contrast-enhanced mammography or tomosynthesis.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORWendie Berg, MD, PhD

University of Pittsburgh

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 10, 2026