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SCOUT Reflector for Tagging Lymph Nodes for Targeted Removal in Patients With Breast Cancer

Using Radar Technology to Tag Abnormal Lymph Nodes for Removal During Surgery Following Neoadjuvant Chemotherapy

Status
Completed
Phases
Early Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03411070
Enrollment
27
Registered
2018-01-25
Start date
2019-04-07
Completion date
2021-12-06
Last updated
2023-01-17

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

Conditions

Positive Axillary Lymph Node, Stage 0 Breast Cancer AJCC v6 and v7, Stage I Breast Cancer AJCC v7, Stage IA Breast Cancer AJCC v7, Stage IB Breast Cancer AJCC v7, Stage II Breast Cancer AJCC v6 and v7, Stage IIA Breast Cancer AJCC v6 and v7, Stage IIB Breast Cancer AJCC v6 and v7, Stage III Breast Cancer AJCC v7, Stage IIIA Breast Cancer AJCC v7, Stage IIIB Breast Cancer AJCC v7, Stage IIIC Breast Cancer AJCC v7

Brief summary

This pilot clinical trial will evaluate whether the SCOUT reflector can be used to tag abnormal lymph nodes in patients with breast cancer prior to chemotherapy for targeted removal at the time of surgery. The SCOUT localization system with the SAVI reflector is non-radioactive and completely internal so can be placed into an abnormal lymph node prior to chemotherapy treatment, which theoretically will allow easier identification and therefore more reliable targeting of the abnormal lymph node for surgical removal.

Detailed description

PRIMARY OBJECTIVES: I. Percentage of patients with successful retrieval of the reflector confirmed by specimen radiography. II. Percentage of patients with successful retrieval of the biopsied node, confirmed by presence of clip, biopsy changes or treatment-related changes on pathology. SECONDARY OBJECTIVES: I. Total number of lymph nodes removed. II. Percentage of patients in which clipped node was a sentinel node. III. Percentage of patients with nodal pathologic complete response (PCR). IV. Residual cancer burden (RCB) score for patients with residual nodal disease. V. Percentage of patients requiring axillary dissection. VI. Days prior to surgery of reflector insertion. OUTLINE: Patients undergo image-guided placement of the SCOUT reflector prior to course 2 of standard of care neoadjuvant chemotherapy. Patients undergo standard of care surgery approximately 4-8 weeks after chemotherapy completion.

Interventions

Undergo SCOUT reflector placement

PROCEDURETherapeutic Conventional Surgery

Undergo surgery

Sponsors

Faxitron bioptics, LLC
CollaboratorUNKNOWN
Jonsson Comprehensive Cancer Center
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Able to give written informed consent to participate in the study * Patients with a breast cancer diagnosis of any subtype and a biopsy-proven positive axillary lymph node who will be treated first with chemotherapy * Enlarged lymph node and/or clip targetable with image guidance * Patients who are eligible for surgical resection of the primary breast cancer and targeted dissection of the axilla

Exclusion criteria

* More than 3 positive axillary nodes on imaging or matted nodes on clinical exam * Stage IV breast cancer * Pregnant or lactating females * Patients with inflammatory breast cancer * Patients with allergies to isosulfan blue or technetium, which would preclude sentinel node mapping * Patients who have had previous axillary surgery, including sentinel lymph node biopsy

Design outcomes

Primary

MeasureTime frame
Percentage of patients with successful retrieval of reflector confirmed by specimen radiographyUp to 2 years
Percentage of patients with successful retrieval of the biopsied node, confirmed by presence of clip, biopsy changes or treatment-related changes on pathologyUp to 2 years

Secondary

MeasureTime frameDescription
Percentage of patients with nodal pathologic complete response (PCR)Up to 2 years
Residual cancer burden (RCB) score for patients with residual nodal diseaseUp to 2 years
Total number of lymph nodes removedUp to 2 years
Days prior to surgery of tag insertionUp to 2 years
Incidence of adverse eventsUp to 2 yearsAll adverse events due to these procedures will be recorded and reported to the institutional review board (IRB).
Percentage of patients requiring axillary dissectionUp to 2 years
Percentage of patients in which clipped node was a sentinel nodeUp to 2 years

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 23, 2026