Trial reportAnnals of surgical oncology2026
Omission of Axillary Surgery in Patients with Negative Axillary Evaluation Integrated with LymphPET: A Prospective Clinical Study.
Trial report in Annals of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04072653 (Sentinel Node Biopsy Vs Observation After Axillary PET Examination), which is not on this map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Sentinel Node Biopsy Vs Observation After Axillary PET Examination
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Authors and funding
11 authors.
Funding
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Abstract
backgroundSentinel lymph node biopsy (SLNB) is the standard surgical approach for axillary node staging in patients with early-stage breast cancer (EBC). However, there is an increasing trend in investigating the omission of SLNB, as molecular tumor biology has become a primary determinant of systemic therapy, overshadowing the importance of nodal status. PATIENTS AND
methodsThe SOAPET trial constitutes a prospective phase II study structured into two phases. In the first stage, we demonstrated that LymphPET could be utilized to screen patients to potentially forego SLNB, achieving a negative predictive value of 91%. In the second stage, SLNB was omitted for patients with a negative preoperative axillary evaluation (PAE) integrated with LymphPET. Primary endpoints were the 3-year distant disease-free survival (DDFS) and locoregional recurrence-free survival (LRRFS).
resultsA total of 304 patients were enrolled with a median age of 52.5 years (IQR 44-62 years). Of these patients, 240 (78.9%) presented with clinical T1 tumors. Among all the cases, 218 (71.7%) were classified as luminal-like breast cancer. The median follow-up was 43.5 months. The 3-year DDFS and LRRFS rates were 100% and 99.7% (95% CI 99.0-100.0), respectively. In the entire cohort, two cases (0.7%) of ipsilateral axillary node relapse, one (0.3%) ipsilateral in-breast recurrence, and one (0.3%) distant metastasis were reported.
conclusionsThe second phase of the study corroborates the oncologic safety of omitting SLNB on the basis of PAE incorporating LymphPET. For patients with clinically node-negative EBC with high-risk characteristics, SLNB might be safely spared with the added diagnostic benefit provided by LymphPET.
trial registrationClinicalTrials.Gov ID NCT04072653.
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