Maria Ervandian1, Morten Høyer2, Stine Elleberg Petersen2, Lisa Sengeløv3, Steinbjørn Hansen4, Mats Holmberg5, Joen Sveistrup6, Peter Meidahl Petersen6, Michael Borre1. 1. a Department of Urology , Aarhus University Hospital , Aarhus N , Denmark . 2. b Department of Oncology , Aarhus University Hospital , Aarhus C , Denmark . 3. c Department of Oncology , Herlev Hospital , Herlev , Denmark . 4. d Department of Oncology , Odense University Hospital , Odense C , Denmark . 5. e Department of Oncology , Aalborg University Hospital , Aalborg , Denmark , and. 6. f Department of Oncology , Rigshospitalet , København Ø , Denmark.
Abstract
BACKGROUND: The purpose of this observational cohort study was to evaluate the outcome and prognostic factors following salvage radiotherapy (SRT) in a consecutive national cohort. MATERIAL AND METHODS: Between 2006 and 2010, 259 patients received SRT in Denmark. Patient- and cancer-related characteristics were retrospectively retrieved from patient charts. The primary end point was biochemical progression-free survival (b-PFS). RESULTS: At the end of follow-up, 51% of the patients displayed a prostate-specific antigen (PSA) level <0.1 ng/ml. The three-year b-PFS rate for the total cohort was 57.0%. Nearly half of the patients (44%) received androgen deprivation therapy (ADT) in combination with SRT. Positive surgical tumour margins (p = 0.025) and ADT (p = 0.001) were the only markers independently correlated with b-PFS. In patients who received SRT without ADT, both a pre-SRT PSA level ≤0.5 ng/ml (p = 0.003) and pathological tumour stage T1-T2 (p = 0.036) independently correlated with b-PFS. Moreover, a duration between radical prostatectomy (RP) and SRT ≤29 months (p = 0.035) independently correlated with b-PFS in patients treated with ADT in combination with RT. CONCLUSIONS: In patients treated for biochemical failure after RP, positive surgical tumour margins and PSA levels ≤0.5 ng/mL at the time of SRT were associated with a favourable outcome. Despite less favourable tumour characteristics, patients receiving SRT and ADT demonstrated improved b-PFS, and in particular, patients with PSA levels >0.2 ng/ml benefitted from additional ADT.
BACKGROUND: The purpose of this observational cohort study was to evaluate the outcome and prognostic factors following salvage radiotherapy (SRT) in a consecutive national cohort. MATERIAL AND METHODS: Between 2006 and 2010, 259 patients received SRT in Denmark. Patient- and cancer-related characteristics were retrospectively retrieved from patient charts. The primary end point was biochemical progression-free survival (b-PFS). RESULTS: At the end of follow-up, 51% of the patients displayed a prostate-specific antigen (PSA) level <0.1 ng/ml. The three-year b-PFS rate for the total cohort was 57.0%. Nearly half of the patients (44%) received androgen deprivation therapy (ADT) in combination with SRT. Positive surgical tumour margins (p = 0.025) and ADT (p = 0.001) were the only markers independently correlated with b-PFS. In patients who received SRT without ADT, both a pre-SRT PSA level ≤0.5 ng/ml (p = 0.003) and pathological tumour stage T1-T2 (p = 0.036) independently correlated with b-PFS. Moreover, a duration between radical prostatectomy (RP) and SRT ≤29 months (p = 0.035) independently correlated with b-PFS in patients treated with ADT in combination with RT. CONCLUSIONS: In patients treated for biochemical failure after RP, positive surgical tumour margins and PSA levels ≤0.5 ng/mL at the time of SRT were associated with a favourable outcome. Despite less favourable tumour characteristics, patients receiving SRT and ADT demonstrated improved b-PFS, and in particular, patients with PSA levels >0.2 ng/ml benefitted from additional ADT.
Authors: Pirus Ghadjar; Daniel M Aebersold; Clemens Albrecht; Dirk Böhmer; Michael Flentje; Ute Ganswindt; Stefan Höcht; Tobias Hölscher; Felix Sedlmayer; Frederik Wenz; Daniel Zips; Thomas Wiegel Journal: Strahlenther Onkol Date: 2018-01-30 Impact factor: 3.621
Authors: Christina Schröder; Hongjian Tang; Paul Windisch; Daniel Rudolf Zwahlen; André Buchali; Erwin Vu; Tilman Bostel; Tanja Sprave; Thomas Zilli; Vedang Murthy; Robert Förster Journal: Cancers (Basel) Date: 2022-01-29 Impact factor: 6.639
Authors: Nina-Sophie Schmidt-Hegemann; Christian Stief; Tak-Hyun Kim; Chukwuka Eze; Simon Kirste; Iosif Strouthos; Minglun Li; Wolfgang Schultze-Seemann; Harun Ilhan; Wolfgang Peter Fendler; Peter Bartenstein; Anca-Ligia Grosu; Ute Ganswindt; Claus Belka; Philipp T Meyer; Constantinos Zamboglou Journal: J Nucl Med Date: 2018-07-12 Impact factor: 10.057