Sentinel Lymph Node Biopsy After Neoadjuvant Chemotherapy in IBC
SYMPHONY
2 other identifiers
interventional
75
1 country
1
Brief Summary
This study will prospectively determine the feasibility and oncological safety of sentinel lymph node biopsy (SLNB) after neoadjuvant chemotherapy (NACT) in inflammatory breast cancer patients traditionally considered ineligible for SLNB due to locally advanced cancer with skin/chest wall involvement (cT4d) and heavy nodal burden at presentation (cN1/N2). This study will also assess the identification rate of sentinel lymph-node (SLN) (using single tracer mapping) after NACT in this patient population. Finally, the study will determine the long-term outcome of such cohort.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Dec 2025
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 15, 2025
CompletedFirst Posted
Study publicly available on registry
July 23, 2025
CompletedStudy Start
First participant enrolled
December 12, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2030
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2030
January 6, 2026
January 1, 2026
4.6 years
July 15, 2025
January 2, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
intraoperative SLN identification rate.
Evaluation of the feasibility of SLNB in a selected cohort of IBC patients operated who responded to systemic NACT in the axillary nodes, achieving complete clinical response (ycN0). The feasibility of SLNB, defined as the intraoperative SLN identification rate, will be calculated as the proportion of patients with successfully identified intraoperative SLNs among the enrolled patients.
3 Months
Secondary Outcomes (4)
Disease-free survival (DFS)
5 years.
Distant recurrence-free survival (DRFS)
5 years
Breast cancer-specific survival (BCSS)
5 years
Overall survival (OS)
5 years
Study Arms (3)
Group 1
EXPERIMENTALPatients with SLN visualization.
Group 2a
EXPERIMENTALPatients with no pre-surgery SLN visualization and intra-surgery SLN identification.
Group 2b
ACTIVE COMPARATORPatients with no pre-surgery SLN visualization and no intra-surgery SLN identification.
Interventions
SLN Biopsy after pre-surgery positive SLN visualization.
SLN biopsy after no pre-surgery SLN visualization using technetium-99m and intra-surgery SLN identification.
Axillary Limph Node Dissection (ALND) after no pre-surgery SLN visualization using technetium-99m and no intra-surgery SLN identification.
Eligibility Criteria
You may qualify if:
- Female patients over 18 years of age with clinically and biopsy-proven stage IIIB cT4d cN0-2 M0 breast cancer as assessed by clinical exam and imaging
- Patients receiving NACT and having a nodal complete clinical response (ycN0) as assessed by physical exam and imaging (ultrasound and PET)
- Ability to understand and willingness to sign informed consent document and comply with study procedures
You may not qualify if:
- Patients with cN3 stage at diagnosis
- Participants with stage IV (metastatic) breast cancer
- Participants with positive contralateral axillary nodes identified on standard imaging studies (mammograpy, MRI, ultrasound) and cito-histologically ascertained
- Patients with a prior history of ipsilateral breast cancer
- Pregnant patients
- Patients after NACT with persistent palpable axillary nodes, as assessed by physical exam, or with persistent pathological axillary nodes, as assessed by imaging
- Patients not consenting to ALND
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
European Institute of Oncology
Milan, 20141, Italy
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 15, 2025
First Posted
July 23, 2025
Study Start
December 12, 2025
Primary Completion (Estimated)
July 1, 2030
Study Completion (Estimated)
August 1, 2030
Last Updated
January 6, 2026
Record last verified: 2026-01