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024 7 _ |a 10.1016/j.radonc.2023.109678
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024 7 _ |a 0167-8140
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024 7 _ |a 1879-0887
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037 _ _ |a DKFZ-2023-00922
041 _ _ |a English
082 _ _ |a 610
100 1 _ |a Scharl, Sophia
|b 0
245 _ _ |a Salvage radiotherapy is effective in patients with PSMA-PET-negative biochemical recurrence- results of a retrospective study.
260 _ _ |a Amsterdam [u.a.]
|c 2023
|b Elsevier Science
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500 _ _ |a 2023 Jul;184:109678
520 _ _ |a /Purpose: The present study aimed to assess whether SRT to the prostatic fossa should be initiated in a timely manner after detecting biochemical recurrence (BR) in patients with prostate cancer, when no correlate was identified with prostate-specific membrane antigen positron emission tomography (PSMA-PET).This retrospective, multicenter analysis included 1222 patients referred for PSMA-PET after a radical prostatectomy due to BR. Exclusion criteria were: pathological lymph node metastases, prostate-specific antigen (PSA) persistence, distant or lymph node metastases, nodal irradiation, and androgen deprivation therapy (ADT). This led to a cohort of 341 patients. Biochemical progression-free survival (BPFS) was the primary study endpoint.The median follow-up was 28.0 months. The 3-year BPFS was 71.6% in PET-negative cases and 80.8% in locally PET-positive cases. This difference was significant in univariate (p=0.019), but not multivariate analyses (p=0.366, HR: 1.46, 95%CI: 0.64-3.32). The 3-year BPFS in PET-negative cases was significantly influenced by age (p=0.005), initial pT3/4 (p<0.001), pathology scores (ISUP) ≥3 (p=0.026), and doses to fossa >70 Gy (p=0.027) in univariate analyses. In multivariate analyses, only age (HR: 1.096, 95%CI: 1.023-1.175, p=0.009) and PSA-doubling time (HR: 0.339, 95%CI: 0.139-0.826, p=0.017) remained significant.To our best knowledge, this study provided the largest SRT analysis in patients without ADT that were lymph node-negative on PSMA-PET. A multivariate analysis showed no significant difference in BPFS between locally PET-positive and PET-negative cases. These results supported the current EAU recommendation to initiate SRT in a timely manner after detecting BR in PET negative patients.
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650 _ 7 |a PET negative
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650 _ 7 |a PSMA PET-CT
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650 _ 7 |a prostate cancer
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650 _ 7 |a salvage radiotherapy
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700 1 _ |a Zamboglou, Constantinos
|0 P:(DE-HGF)0
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700 1 _ |a Strouthos, Iosif
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700 1 _ |a Farolfi, Andrea
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700 1 _ |a Serani, Francesca
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700 1 _ |a Lanzafame, Helena
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700 1 _ |a Giuseppe Morganti, Alessio
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700 1 _ |a Trapp, Christian
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700 1 _ |a Koerber, Stefan A
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700 1 _ |a Debus, Jürgen
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700 1 _ |a Peeken, Jan C
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700 1 _ |a Vogel, Marco M E
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700 1 _ |a Vrachimis, Alexis
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700 1 _ |a K B Spohn, Simon
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700 1 _ |a Ruf, Juri
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700 1 _ |a Grosu, Anca-Ligia
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700 1 _ |a Ceci, Francesco
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700 1 _ |a Fendler, Wolfgang P
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700 1 _ |a Bartenstein, Peter
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700 1 _ |a Kroeze, Stephanie G C
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700 1 _ |a Guckenberger, Matthias
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700 1 _ |a Krafcsik, Manuel
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700 1 _ |a Klopscheck, Christina
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700 1 _ |a Fanti, Stefano
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700 1 _ |a Hruby, George
|b 24
700 1 _ |a Emmett, Louise
|b 25
700 1 _ |a Belka, Claus
|b 26
700 1 _ |a Stief, Christian
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700 1 _ |a Schmidt-Hegemann, Nina-Sophie
|b 28
700 1 _ |a Henkenberens, Christoph
|b 29
700 1 _ |a Mayer, Benjamin
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700 1 _ |a Miksch, Jonathan
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700 1 _ |a Shelan, Mohamed
|b 32
700 1 _ |a Aebersold, Daniel M
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700 1 _ |a Thamm, Reinhard
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700 1 _ |a Wiegel, Thomas
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Marc 21