Photoacoustic Imaging for Characterizing Breast Masses and Breast Tumor Response to Neoadjuvant Chemotherapy

Recruiting

• Conditions: Breast Cancer
• Interventions: Device: Photoacoustics Imaging System

• Registration Number: NCT04428528
• Lead Sponsor: Sunnybrook Health Sciences Centre

Brief Summary

Our objective in this pilot study will be to identify PA parameters that can distinguish benign vs. malignant lesions, and also, if PA parameters change with within breast tumors during chemotherapy treatment over time.

Detailed Description

This study will investigate photoacoustic tissue characteristics of breast lesions both at diagnosis, and within a separate subgroup of patients, physiological changes in breast tumors during neoadjuvant chemotherapy (NAC). Our objective in this pilot study will be to identify PA parameters that can distinguish benign vs. malignant lesions, and also, if PA parameters change with within breast tumors during chemotherapy treatment over time. Our hope is to use this information to correlate with pathological response.

Study Timeline

• Study Start: 2017-02-13
• Study First Submitted: 2020-06-09
• Study First Submitted QC: 2020-06-09
• Study First Posted: 2020-06-11
• Status Verified: 2023-12
• Last Update Submitted: 2023-12-07
• Last Update Posted: 2023-12-13
• Primary Completion: 2025-02-13
• Study Completion: 2029-02-13

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 100

Inclusion Criteria

• Subjects must give appropriate written informed consent prior to participation in the study;
• Subjects must be able and willing to comply with the safety procedures during the Scanning Period;
• Subjects must be men and women of between 20 to 80 years of age, inclusive, on the day the Informed Consent Form is signed;
• Subjects must be receiving neoadjuvant chemotherapy for locally-advanced breast cancer.
• Biopsy-confirmed diagnosis of locally advanced breast cancer; of all molecular subtypes (ER+/-, PR+/-, HER2+/-).

Exclusion Criteria

• Subjects with a past medical history of abnormalities, significant injury, or medical or surgical procedures (e.g. Silicone/saline implants) involving either breast, exclusive of the lesion at issue;
• Subjects with any dermatologic abnormalities (including tattoos, open sores, or breached skin) involving either breast;
• Subjects with a current or past medical history of connective tissue disease;
• Subjects who are pregnant or lactating;
• Subjects with an implanted electronic device such as a cardiac pacemaker, defibrillator, or neurological stimulator;
• Subjects with a history or expectation of significant anxiety associated with undergoing diagnostic evaluations;
• Subjects with a history of musculoskeletal disease which may predispose them to discomfort during the Scanning Period;
• Subjects with a known sensitivity to low-power infrared radiation (e.g., as a result of a dermatologic condition); and
• Subjects, who, in the opinion of the investigator or clinical research coordinator, may not otherwise be appropriate for inclusion into the study.

Cohort 2 - Breast Mass Characterization:

Inclusion Criteria:

• Subjects must give appropriate written informed consent prior to participation in the study;
• Subjects must be able and willing to comply with the safety procedures during the Scanning Period;
• Subjects must be men and women of between 20 to 80 years of age, inclusive, on the day the Informed Consent Form is signed;
• Subjects must be referred to breast diagnostic clinic for investigation of a breast mass.

Exclusion Criteria:

• Subjects with a past medical history of abnormalities, significant injury, or medical or surgical procedures (e.g.,silicone/saline implants) involving either breast, exclusive of the lesion at issue;
• Subjects with any dermatologic abnormalities (including tattoos, open sores, or breached skin) involving either breast;
• Subjects with a current or past medical history of connective tissue disease;
• Subjects who are pregnant or lactating;
• Subjects with an implanted electronic device such as a cardiac pacemaker, defibrillator, or neurological stimulator;
• Subjects with a history or expectation of significant anxiety associated with undergoing diagnostic evaluations;
• Subjects with a history of musculoskeletal disease which may predispose them to discomfort during the Scanning Period;
• Subjects with a known sensitivity to low-power infrared radiation (e.g., as a result of a dermatologic condition); and
• Subjects, who, in the opinion of the investigator or clinical research coordinator, may not otherwise be appropriate for inclusion into the study.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Neoadjuvant Chemotherapy Monitoring	Photoacoustics Imaging System	The first arm Neoadjuvant Chemotherapy Monitoring will investigate changes of measured photoacoustic markers and compare to these to histopathological indicators of breast tumor response to NAC. Changes in photoacoustic parameters will be made to a pre-treatment point over the course of treatment. Treatment will not be modified on the basis of our observations. in this pilot observational study
Breast Mass Characterization	Photoacoustics Imaging System	The second arm Breast Mass Characterization will investigate if breast masses (benign vs. malignant) can be characterized during clinical diagnostic work-up. Differences in the photoacoustic tissue-properties will be compared to histopathological evaluation.

Primary Outcome Measures

Name	Time	Method
Treatment response correlation between photoacoustic parameters and histopathological measurement.	4 to 8 months	The primary study endpoint will investigate changes of measured photoacoustic markers and compare to these to histopathological indicators of breast tumor response to NAC. Changes in photoacoustic parameters (hemoglobin concentration, oxygen saturation, tumor structure) will be made to a pre-treatment point over the course of treatment. Treatment will not be modified on the basis of our observations in this pilot observational study.

Secondary Outcome Measures

Name	Time	Method
Breast mass characterization	30 days	The secondary study endpoint will investigate if breast masses (benign vs. malignant) can be characterized by PA during clinical diagnostic work-up. Differences in the photoacoustic tissue-properties will be compared to histopathological evaluation. No diagnostic information from PA measurements will be used for patient-care/diagnosis as a result of our observations in this pilot observational study

Trial Locations

Locations (1)

Sunnybrook Health Sciences Centre; 🇨🇦 Toronto, Ontario, Canada