ArticleCurrent oncology (Toronto, Ont.)2026
Incidence and Short- to Intermediate-Term Oncological Outcomes of Pathological T0 Prostate Cancer After Robot-Assisted Radical Prostatectomy: A Multicenter, Retrospective Cohort Study in Japan (MSUG94 Group).
Article in Current oncology (Toronto, Ont.), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPathological T0 (pT0) prostate cancer following radical prostatectomy is uncommon, and its prognostic significance remains unclear, particularly after neoadjuvant hormonal therapy (NHT). We investigated the incidence of pT0 disease in a multicenter Japanese cohort and described postoperative biochemical recurrence (BCR) outcomes.
methodsThis retrospective study analyzed 3079 patients who underwent robot-assisted radical prostatectomy at nine Japanese centers between 2011 and 2021. Patients were classified as having pT0 or non-pT0 disease. Because only four pT0 cases occurred without NHT, these are summarized descriptively. Exploratory Kaplan-Meier and log-rank analyses of biochemical recurrence-free survival (BRFS) were performed for the NHT subgroup.
resultsTwenty-seven pT0 cases (0.9%) were identified, and 85.2% were identified after NHT. Overall, 399 patients (13.0%) developed BCR. Among patients who did not undergo NHT, the 1- and 2-year BRFS rates were 100% and 100%, respectively, in the pT0 group and 92.4% and 88.1%, respectively, in the non-pT0 group. In the NHT subgroup, the corresponding rates were 92.9% and 92.7%, versus 91.8% and 85.5%, respectively (
conclusionspT0 disease after robot-assisted radical prostatectomy is rare and occurs predominantly after NHT. Given the possibility that late-onset recurrences may have been overlooked, the results of this trial should be understood as providing evidence from the short- to intermediate-term perspective.
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