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Subharmonic Imaging and Pressure Estimation for Monitoring Neoadjuvant Chemotherapy

Quantitative Subharmonic Breast Imaging: Subharmonic Imaging and Pressure Estimation for Monitoring Neoadjuvant Chemotherapy

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02115607
Enrollment
17
Registered
2014-04-16
Start date
2014-03-31
Completion date
2018-05-23
Last updated
2025-05-06

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

Conditions

Breast Cancer

Keywords

Breast cancer, Interstitial fluid pressure, Angiogenesis, Contrast enhanced ultrasound imaging, Subharmonic imaging, Subharmonic pressure estimation

Brief summary

This is a diagnostic accuracy study to evaluate if two novel ultrasound (US) techniques, quantitative 3D subharmonic imaging (SHI) and Subharmonic Aided Pressure Estimation (SHAPE), used with an intravenous ultrasound contrast agent (Definity, Lantheus Medical Imaging, Billerica, MA), can track changes in locally advanced breast cancer (LABC) angiogenesis and interstitial fluid pressure (IFP), respectively, by studying women undergoing neoadjuvant chemotherapy before as well as with around 10% and 60% (in part 1) or 30% (in part 2) of the neoadjuvant chemotherapy treatment delivered and after completion of the neoadjuvant chemotherapy treatment. Results will be compared to MRI and pathology.

Interventions

DRUGDefinity infusion

3 ml of Perflutren Lipid Microspheres (Definity) mixed in 50 ml of saline is infused at a rate of approximately 4ml/min

Sponsors

U.S. Army Medical Research and Development Command
CollaboratorFED
Sidney Kimmel Cancer Center at Thomas Jefferson University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Females * Be diagnosed with T1 or greater LABC, any N and M0. * Be scheduled for neoadjuvant chemotherapy * Be at least 21 years of age. * Be medically stable. * If a female of child-bearing potential, must have a negative pregnancy test. * Have signed Informed Consent to participate in the study.

Exclusion criteria

* Males * Females who are pregnant or nursing. * Patients with other primary cancers requiring systemic treatment. * Patients with any metastatic disease. * Patients undergoing neoadjuvant endocrine therapy. * Patients with known hypersensitivity or allergy to any component of Definity. * Patients with cardiac shunts or congenital heart defects. * Patients with unstable cardiopulmonary conditions or respiratory distress syndrome. * Patients with uncontrollable emphysema, pulmonary vasculitis, pulmonary hypertension or a history of pulmonary emboli. * Patients who have received any contrast medium (X-ray, MRI, CT or US) in the 24 hours prior to the research US exam.

Design outcomes

Primary

MeasureTime frameDescription
Subharmonic Aided Pressure Estimation (SHAPE) After Treatment for Complete Respondersfrom baseline to completion of neoadjuvant chemotherapy, average of 6 monthsTo evaluate the ability of SHAPE, used with Definity, to track changes in interstitial fluid pressure (IFP) by studying women undergoing neoadjuvant chemotherapy before as well as with around 10% and 30% of the neoadjuvant chemotherapy treatment delivered and comparing results to MRI and pathology.
Subharmonic Aided Pressure Estimation (SHAPE) After Treatment for Partial Respondersfrom baseline to completion of neoadjuvant chemotherapyTo evaluate the ability of SHAPE, used with Definity, to track changes in interstititial fluid (IFP) by studying women undergoing neoadjuvant chemotherapy before as well as with around 10% 30% of the neoadjuvant chemotherapy treatment delivered and after completion of the neoadjuvant chemotherapy treatment and comparing results to MRI and pathology.

Secondary

MeasureTime frameDescription
Subharmonic Imaging (SHI) Depiction of Breast Cancer Angiogenesis for Complete RespondersFrom baseline to after surgeryTo compare the 3D Subharmonic imaging (SHI) depiction of breast cancer angiogenesis in humans to CD31, an immunohistochemical predictor of angiogenesis.
SHI Depiction of Breast Cancer Angiogenesis for Partial RespondersAfter surgery; on average 6 monthsTo compare the 3D SHI depiction of breast cancer angiogenesis in humans to CD31, an immunohistochemical predictor of angiogenesis.

Countries

United States

Participant flow

Participants by arm

ArmCount
Definity Infusion
Infusion of Definity (Perflutren Lipid Microspheres) Definity infusion: 3 ml of Perflutren Lipid Microspheres (Definity) mixed in 50 ml of saline is infused at a rate of approximately 4ml/min
17
Total17

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyWithdrawal by Subject1

Baseline characteristics

CharacteristicDefinity Infusion
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
6 Participants
Age, Categorical
Between 18 and 65 years
11 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
17 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
1 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
11 Participants
Region of Enrollment
United States
17 participants
Sex: Female, Male
Female
17 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
3 / 17
other
Total, other adverse events
0 / 17
serious
Total, serious adverse events
0 / 17

Outcome results

Primary

Subharmonic Aided Pressure Estimation (SHAPE) After Treatment for Complete Responders

To evaluate the ability of SHAPE, used with Definity, to track changes in interstitial fluid pressure (IFP) by studying women undergoing neoadjuvant chemotherapy before as well as with around 10% and 30% of the neoadjuvant chemotherapy treatment delivered and comparing results to MRI and pathology.

Time frame: from baseline to completion of neoadjuvant chemotherapy, average of 6 months

Population: six participants were not counted in the data analysis. 2 due to technical issues, 2 withdrew due to worsening of underlying disease, and 2 stopped their nedoadjuvant chemotherapy treatment unexpectedly. Data presented below is for those who achieved Complete Response (CR)

ArmMeasureGroupValue (MEAN)Dispersion
Definity InfusionSubharmonic Aided Pressure Estimation (SHAPE) After Treatment for Complete Responders10% completion of neoadjuvant chemotherapy for3.23 dBStandard Deviation 1.41
Definity InfusionSubharmonic Aided Pressure Estimation (SHAPE) After Treatment for Complete Responders30% completion of neoadjuvant chemotherapy1.67 dBStandard Deviation 1.09
Primary

Subharmonic Aided Pressure Estimation (SHAPE) After Treatment for Partial Responders

To evaluate the ability of SHAPE, used with Definity, to track changes in interstititial fluid (IFP) by studying women undergoing neoadjuvant chemotherapy before as well as with around 10% 30% of the neoadjuvant chemotherapy treatment delivered and after completion of the neoadjuvant chemotherapy treatment and comparing results to MRI and pathology.

Time frame: from baseline to completion of neoadjuvant chemotherapy

Population: six participants were not counted in the data analysis. 2 due to technical issues, 2 withdrew due to worsening of underlying disease, and 2 stopped their nedoadjuvant chemotherapy treatment unexpectedly. Data presented below is for those who achieved Partial Response (PR)

ArmMeasureGroupValue (MEAN)Dispersion
Definity InfusionSubharmonic Aided Pressure Estimation (SHAPE) After Treatment for Partial Responders10% completion of neoadjuvant chemotherapy for-0.88 dBStandard Deviation 1.46
Definity InfusionSubharmonic Aided Pressure Estimation (SHAPE) After Treatment for Partial Responders30% completion of neoadjuvant chemotherapy0.06 dBStandard Deviation 0.9
Secondary

SHI Depiction of Breast Cancer Angiogenesis for Partial Responders

To compare the 3D SHI depiction of breast cancer angiogenesis in humans to CD31, an immunohistochemical predictor of angiogenesis.

Time frame: After surgery; on average 6 months

Population: Data presented below is for those who achieved Partial Response (PR)

ArmMeasureValue (MEAN)Dispersion
Definity InfusionSHI Depiction of Breast Cancer Angiogenesis for Partial Responders0 dBStandard Deviation 1.2
Secondary

Subharmonic Imaging (SHI) Depiction of Breast Cancer Angiogenesis for Complete Responders

To compare the 3D Subharmonic imaging (SHI) depiction of breast cancer angiogenesis in humans to CD31, an immunohistochemical predictor of angiogenesis.

Time frame: From baseline to after surgery

Population: six participants were not counted in the data analysis. 2 due to technical issues, 2 withdrew due to worsening of underlying disease, and 2 stopped their nedoadjuvant chemotherapy treatment unexpectedly. Data presented below is for those who achieved Complete Response (CR)

ArmMeasureValue (MEAN)Dispersion
Definity InfusionSubharmonic Imaging (SHI) Depiction of Breast Cancer Angiogenesis for Complete Responders1.1 dBStandard Deviation 1.9

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026